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1

Energy Payback for Energy Systems Ensembles During Growth  

E-Print Network (OSTI)

During periods of growth, the energy payback performance of new energy generating technologies deviates substantially from the usual static measures of energy return on investment (EROI), and time to breakeven (tB) for ...

Gutowski, Timothy G.

2

Payback | OpenEI  

Open Energy Info (EERE)

7 7 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142281687 Varnish cache server Payback Dataset Summary Description Global PV grid parity and market potential. Data is courtesy of Sean Ong. Source National Renewable Energy Laboratory Date Released Unknown Date Updated Unknown Keywords grid Parity Payback photovoltaic price PV Residential Data text/csv icon globalgridparity.csv (csv, 4.8 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Creative Commons CCZero Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote

3

Payback Analysis of Energy Proposals  

E-Print Network (OSTI)

that the energy inflation rate often exceeds the inflation rate of the general economy, this paper develops a technique for including these parameters into payback analysis of energy investments. Included in the development of this method are examples of its...

Blevins, L. D.; Estes, C. B.

1980-01-01T23:59:59.000Z

4

Breakeven Prices for Photovoltaics on Supermarkets in the United States  

SciTech Connect

The photovoltaic (PV) breakeven price is the PV system price at which the cost of PV-generated electricity equals the cost of electricity purchased from the grid. This point is also called 'grid parity' and can be expressed as dollars per watt ($/W) of installed PV system capacity. Achieving the PV breakeven price depends on many factors, including the solar resource, local electricity prices, customer load profile, PV incentives, and financing. In the United States, where these factors vary substantially across regions, breakeven prices vary substantially across regions as well. In this study, we estimate current and future breakeven prices for PV systems installed on supermarkets in the United States. We also evaluate key drivers of current and future commercial PV breakeven prices by region. The results suggest that breakeven prices for PV systems installed on supermarkets vary significantly across the United States. Non-technical factors -- including electricity rates, rate structures, incentives, and the availability of system financing -- drive break-even prices more than technical factors like solar resource or system orientation. In 2020 (where we assume higher electricity prices and lower PV incentives), under base-case assumptions, we estimate that about 17% of supermarkets will be in utility territories where breakeven conditions exist at a PV system price of $3/W; this increases to 79% at $1.25/W (the DOE SunShot Initiative's commercial PV price target for 2020). These percentages increase to 26% and 91%, respectively, when rate structures favorable to PV are used.

Ong, S.; Clark, N.; Denholm, P.; Margolis, R.

2013-03-01T23:59:59.000Z

5

Estimating the Payback Period of Additional Insulation | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

the Payback Period of Additional Insulation the Payback Period of Additional Insulation Estimating the Payback Period of Additional Insulation June 24, 2012 - 1:17pm Addthis Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. What does this mean for me? Even if you hire a contractor to do the work, adding insulation to your home will likely have an attractive payback. If you can gather the information and plug it into an equation, you can determine the payback of adding insulation to your home. Use the equation below to estimate the cost effectiveness of adding insulation in terms of the "years to payback" for savings in heating costs.

6

Estimating the Payback Period of Additional Insulation | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Estimating the Payback Period of Additional Insulation Estimating the Payback Period of Additional Insulation Estimating the Payback Period of Additional Insulation June 24, 2012 - 1:17pm Addthis Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. What does this mean for me? Even if you hire a contractor to do the work, adding insulation to your home will likely have an attractive payback. If you can gather the information and plug it into an equation, you can determine the payback of adding insulation to your home. Use the equation below to estimate the cost effectiveness of adding insulation in terms of the "years to payback" for savings in heating costs.

7

PV vs. Solar Water Heating- Simple Solar Payback  

Energy.gov (U.S. Department of Energy (DOE))

Solar energy systems hang their hats on payback. Financial payback is as tangible as money in your bank account, while other types of paybacklike environmental externalitiesare not usually calculated in dollars. Theres no doubt that photovoltaic (PV) and solar hot water (SHW) systems will pay you back. Maybe not as quickly as youd like, but all systems will significantly offset their cost over their lifetimes. Here well try to answer: Which system will give the quickest return on investment (ROI)?

8

ENERGY PAYBACK OPTIMIZATION OF THERMOELECTRIC POWER GENERATOR SYSTEMS  

E-Print Network (OSTI)

and the thermoelectric module should be performed. Active cooling and the design of the heat sink are customized to findENERGY PAYBACK OPTIMIZATION OF THERMOELECTRIC POWER GENERATOR SYSTEMS Kazuaki Yazawa Dept model for optimizing thermoelectric power generation system is developed and utilized for parametric

9

Chiller-heater unit nets building 2-yr payback  

SciTech Connect

A 500-ton double-absorption Hitachi Paraflow chiller-heater that switches from purchased steam to natural gas will reduce a Manhattan office building's energy costs by 55% and achieve a two-year payback. The new system replaces a steam-powered, single-stage absorption chiller. By reusing heat in a second-stage generator, the Hitachi unit uses only half as many Btus per ton as a conventional chiller. (DCK)

Duffy, J.

1983-05-09T23:59:59.000Z

10

Use the Acceptable Crop Price worksheet to determine breakeven prices for your crops. ACCEPTABLE PRICE WORKSHEET  

E-Print Network (OSTI)

Use the Acceptable Crop Price worksheet to determine breakeven prices for your crops. ACCEPTABLE PRICE WORKSHEET Prepared by: David Bau - Regional Extension Educator, Agricultural Business Management (August 2012) CROP INCOME EXAMPLE YOUR FARM EXAMPLE YOUR FARM (A) Crop Acres 400 400 176 46 (C) Price

Netoff, Theoden

11

Break-Even Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities  

NLE Websites -- All DOE Office Websites (Extended Search)

09 09 December 2009 Break-Even Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities Paul Denholm, Robert M. Margolis, Sean Ong, and Billy Roberts National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 Technical Report NREL/TP-6A2-46909 December 2009 Break-Even Cost for Residential Photovoltaics in the United States: Key Drivers and Sensitivities Paul Denholm, Robert M. Margolis, Sean Ong, and Billy Roberts Prepared under Task No. PVD9.1210 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

12

RTO heat recovery system decreases production costs and provides payback  

SciTech Connect

Application of a heat recovery system to an existing regenerative thermal oxidizer (RTO) was considered, tested, and selected for decreasing production costs at a pressure sensitive tape manufacturing facility. Heat recovery systems on RTO's are less common than those on other thermal oxidizers (e.g., recuperative) because RTO's, by the nature of the technology, usually provide high thermal efficiencies (without the application of external heat recovery systems). In this case, the production processes were integrated with the emission controls by applying an external heat recovery system and by optimizing the design and operation of the existing drying and cure ovens, RTO system, and ductwork collection system. Integration of these systems provides an estimated annual production cost savings of over $400,000 and a simplified capital investment payback of less than 2 years, excluding possible savings from improved dryer operations. These additional process benefits include more consistent and simplified control of seasonal dryer performance and possibly production throughput increases. The production costs savings are realized by substituting excess RTO heat for a portion of the infrared (IR) electrical heat input to the dryers/ovens. This will be accomplished by preheating the supply air to the oven zones with the excess RTO heat (i.e., heat at the RTO exceeding auto-thermal conditions). Several technologies, including direct air-to-air, indirect air-to-air, hot oil-to-air, waste heat boiler (steam-to-air) were evaluated for transferring the excess RTO heat (hot gas) to the ovens. A waste heat boiler was selected to transfer the excess RTO heat to the ovens because this technology provided the most economical, reliable, and feasible operation. Full-scale production test trials on the coating lines were performed and confirmed the IR electrical costs could be reduced up to 70%.

Lundquist, P.R.

1999-07-01T23:59:59.000Z

13

Marginal yield, technological advances, and emissions timing in corn ethanols carbon payback time  

Science Journals Connector (OSTI)

Previous estimates of carbon payback time (CPT) of corn ethanol expansion assumed that marginal yields of newly ... these estimates assumed that the productivity of corn ethanol system and climate change impacts ...

Yi Yang; Sangwon Suh

2014-11-01T23:59:59.000Z

14

Break-Even Cost for Residential Solar Water Heating in the United States: Key Drivers and Sensitivities  

NLE Websites -- All DOE Office Websites (Extended Search)

Break-even Cost for Residential Break-even Cost for Residential Solar Water Heating in the United States: Key Drivers and Sensitivities Hannah Cassard, Paul Denholm, and Sean Ong Technical Report NREL/TP-6A20-48986 February 2011 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Break-even Cost for Residential Solar Water Heating in the United States: Key Drivers and Sensitivities Hannah Cassard, Paul Denholm, and Sean Ong Prepared under Task No. SS10.2110 Technical Report

15

Scientific Breakeven for Fusion Energy For the past 40 years, the IFE fusion research community has adopted: achieving a fusion gain of 1 as  

E-Print Network (OSTI)

scientific breakeven." E. Moses, Status of the NIF Project, Lawrence Livermore National Laboratory Report: "Laser fusion experiments, facilities, and diagnostics at Lawrence Livermore National Laboratory", by H of 1 defines scientific breakeven. (This is therefore a Livermore definition!) The recent National

16

LED Light Fixture Project FC1 Director's Conference Room: Life Cycle Cost and Break-even Analysis  

E-Print Network (OSTI)

LED Light Fixture Project ­ FC1 Director's Conference Room: Life Cycle Cost and Break-even Analysis sources. One of the emerging lighting technologies that facilities organizations are looking at are LEDs. A light-emitting diode (LED) is a solid-state lighting source that switches on instantly, is readily

Johnston, Daniel

17

LBNL-54244 Life-cycle Cost and Payback Period Analysis for Commercial Unitary Air Conditioners  

NLE Websites -- All DOE Office Websites (Extended Search)

44 44 Life-cycle Cost and Payback Period Analysis for Commercial Unitary Air Conditioners Greg Rosenquist, Katie Coughlin, Larry Dale, James McMahon, Steve Meyers Energy Analysis Department Environmental Energy Technologies Division Ernest Orlando Lawrence Berkeley National Laboratory University of California Berkeley, CA 94720 March 2004 This work was supported by the Office of Building Technologies of the U.S. Department of Energy, under Contract No. DE-AC03-76SF00098. ii iii ABSTRACT This report describes an analysis of the economic impacts of possible energy efficiency standards for commercial unitary air conditioners and heat pumps on individual customers in terms of two metrics: life-cycle cost (LCC) and payback period (PBP). For each of the two equipment classes considered, the 11.5 EER provides the largest mean LCC savings. The results

18

Analysis of fuel options for the breakeven core configuration of the Advanced Recycling Reactor  

SciTech Connect

A trade-off study is performed to determine the impacts of various fuel forms on the core design and core physics characteristics of the sodium-cooled Toshiba- Westinghouse Advanced Recycling Reactor (ARR). The fuel forms include oxide, nitride, and metallic forms of U and Th. The ARR core configuration is redesigned with driver and blanket regions in order to achieve breakeven fissile breeding performance with the various fuel types. State-of-the-art core physics tools are used for the analyses. In addition, a quasi-static reactivity balance approach is used for a preliminary comparison of the inherent safety performances of the various fuel options. Thorium-fueled cores exhibit lower breeding ratios and require larger blankets compared to the U-fueled cores, which is detrimental to core compactness and increases reprocessing and manufacturing requirements. The Th cores also exhibit higher reactivity swings through each cycle, which penalizes reactivity control and increases the number of control rods required. On the other hand, using Th leads to drastic reductions in void and coolant expansion coefficients of reactivity, with the potential for enhancing inherent core safety. Among the U-fueled ARR cores, metallic and nitride fuels result in higher breeding ratios due to their higher heavy metal densities. On the other hand, oxide fuels provide a softer spectrum, which increases the Doppler effect and reduces the positive sodium void worth. A lower fuel temperature is obtained with the metallic and nitride fuels due to their higher thermal conductivities and compatibility with sodium bonds. This is especially beneficial from an inherent safety point of view since it facilitates the reactor cool-down during loss of power removal transients. The advantages in terms of inherent safety of nitride and metallic fuels are maintained when using Th fuel. However, there is a lower relative increase in heavy metal density and in breeding ratio going from oxide to metallic or nitride Th fuels relative to the U counterpart fuels. (authors)

Stauff, N.E.; Klim, T.K.; Taiwo, T.A. [Argonne National Laboratory, Argonne, IL (United States); Fiorina, C. [Politecnico di Milano, Milan (Italy); Franceschini, F. [Westinghouse Electric Company LLC., Cranberry Township, Pennsylvania (United States)

2013-07-01T23:59:59.000Z

19

A method for calculating economic critical depth of shale gas resources in China via break-even analysis  

Science Journals Connector (OSTI)

Abstract Target depth is a key measure of the commercial viability of a shale gas prospect. Although much research has been conducted in the shale gas techno-economic appraisal field, no reports are available on the economic critical depth (ECD) of shale gas resources. The present work aims at establishing a model for calculating the ECD using the break-even analysisthe reverse of calculating the net present value (NPV)such that the break-even ECD occurs at zero NPV. The ECD is sensitive to production uncertainty, depending on the initial production (IP) rate and the production decline rate. Examples indicate that these have a marked effect on ECD based on current technology, gas price and exploitation policy, with the IP rate having the more pronounced effect. When the IP rate varies between 2.5 and 5.5נ104m3/day based on the fitted production decline trend from a pilot area in China, the corresponding ECD varies from 898m to 3997m. The ECD is thus able to rule out non-commercial shale gas prospects quickly.

Liangyu Xia; Dongkun Luo

2014-01-01T23:59:59.000Z

20

Building a market for small wind: The break-even turnkey cost of residential wind systems in the United States  

SciTech Connect

Although small wind turbine technology and economics have improved in recent years, the small wind market in the United States continues to be driven in large part by state incentives, such as cash rebates, favorable loan programs, and tax credits. This paper examines the state-by-state economic attractiveness of small residential wind systems. Economic attractiveness is evaluated primarily using the break-even turnkey cost (BTC) of a residential wind system as the figure of merit. The BTC is defined here as the aggregate installed cost of a small wind system that could be supported such that the system owner would break even (and receive a specified return on investment) over the life of the turbine, taking into account current available incentives, the wind resource, and the retail electricity rate offset by on-site generation. Based on the analysis presented in this paper, we conclude that: (1) the economics of residential, grid-connected small wind systems is highly variable by state and wind resource class, (2) significant cost reductions will be necessary to stimulate widespread market acceptance absent significant changes in the level of policy support, and (3) a number of policies could help stimulate the market, but state cash incentives currently have the most significant impact, and will be a critical element of continued growth in this market.

Edwards, Jennifer L.; Wiser, Ryan; Bolinger, Mark; Forsyth, Trudy

2004-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Net Energy Payback and CO{sub 2} Emissions from Three Midwestern Wind Farms: An Update  

SciTech Connect

This paper updates a life-cycle net energy analysis and carbon dioxide emissions analysis of three Midwestern utility-scale wind systems. Both the Energy Payback Ratio (EPR) and CO{sub 2} analysis results provide useful data for policy discussions regarding an efficient and low-carbon energy mix. The EPR is the amount of electrical energy produced for the lifetime of the power plant divided by the total amount of energy required to procure and transport the materials, build, operate, and decommission the power plants. The CO{sub 2} analysis for each power plant was calculated from the life-cycle energy input data.A previous study also analyzed coal and nuclear fission power plants. At the time of that study, two of the three wind systems had less than a full year of generation data to project the life-cycle energy production. This study updates the analysis of three wind systems with an additional four to eight years of operating data.The EPR for the utility-scale wind systems ranges from a low of 11 for a two-turbine system in Wisconsin to 28 for a 143-turbine system in southwestern Minnesota. The EPR is 11 for coal, 25 for fission with gas centrifuge enriched uranium and 7 for gaseous diffusion enriched uranium. The normalized CO{sub 2} emissions, in tonnes of CO{sub 2} per GW{sub e}h, ranges from 14 to 33 for the wind systems, 974 for coal, and 10 and 34 for nuclear fission using gas centrifuge and gaseous diffusion enriched uranium, respectively.

White, Scott W. [University of Kansas, Kansas Geological Survey (United States)], E-mail: whites@kgs.ku.edu

2006-12-15T23:59:59.000Z

22

Integrated Design: Because Nothing Lasts Longer Than Bad Design  

E-Print Network (OSTI)

Integrated Design: Because Nothing Lasts Longer Than Bad Design Paul Westbrook Sustainable Development Manager, LEED AP Texas Instruments Facilities Senior Fellow, US State Department Energy & Climate Partnership for the Americas (ECPA) ESL-KT-14...

Westbrook, P.

2014-01-01T23:59:59.000Z

23

Including fuel price elasticity of demand in net present value and payback time calculations of thermal retrofits: Case study of German dwellings  

Science Journals Connector (OSTI)

In the domestic heating sector a number of different mathematical models are used to evaluate the economic viability of thermal retrofit measures. Currently, however, none of these models incorporate the effect of fuel price elasticity of demand. This paper offers a method for incorporating a factor for fuel price elasticity into models for assessing the net present value and payback time of thermal retrofits of existing homes. A set of working equations is developed, and empirically tested in a case study, a housing estate retrofit project in Ludwigshafen, Germany. The value used in these equations for year-on-year price elasticity, ?0.476, is derived from further empirical studies. The inclusion of price elasticity is found to lower the net present value by 1424% and lengthen the payback time by 5 years in some cases, and hundreds of years in others. It also shows CO2 saved over the technical lifetime of the retrofit measures to be 1524% lower than anticipated. These findings have implications for government policy and investment decisions of businesses, private households and housing providers.

Ray Galvin; Minna Sunikka-Blank

2012-01-01T23:59:59.000Z

24

West Virginian No Longer Worried About Family's Safety | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Virginian No Longer Worried About Family's Safety Virginian No Longer Worried About Family's Safety West Virginian No Longer Worried About Family's Safety April 2, 2010 - 2:29pm Addthis Joshua DeLung When the mountain winters hit for the last 12 years, Michael Shepard and his family had only a wood stove in their house for heat, plus a few kerosene heaters when the stove didn't do the trick. Michael's diagnosis as a diabetic, coupled with a shoulder injury, left him disabled, resulting in his early retirement. Relying on a wood stove with a serious shoulder injury meant getting heat in Michael's Bluefield, W.Va., home was a struggle. "It was cold, just using wood heat, and my wife had to carry it in for me," he says. After applying for and receiving weatherization assistance from Community Action of South Eastern West Virginia last year, though, his lifestyle at

25

PURDUE EXTENSION Estimating Breakeven Sales  

E-Print Network (OSTI)

, based on price and sales forecasts? · How low must fixed costs be to break even? · How sensitive, packaging, and energy costs (fuel, electricity, natural gas) associated with #12;2 Purdue Extension and special offers) by the number of units you expect to sell. If you have created a sales forecast as part

26

Single molecule imaging with longer x-ray laser pulses  

E-Print Network (OSTI)

In serial femtosecond crystallography, x-ray laser pulses do not need to outrun all radiation damage processes because Bragg diffraction exceeds the damage-induced background scattering for longer pulses ($\\sim$ 50--100 fs). This is due to a "self-gating pulse" effect whereby damage terminates Bragg diffraction prior to the pulse completing its passage through the sample, as if that diffraction were produced by a shorter pulse of equal fluence. We show here that a similar gating effect applies to single molecule diffraction with respect to spatially uncorrelated damage processes like ionization and ion diffusion. The effect is clearly seen in calculations of the diffraction contrast, by calculating the diffraction of average structure separately to the diffraction from statistical fluctuations of the structure due to damage ("damage noise"). Our results suggest that sub-nanometer single molecule imaging with longer pulses, like those produced at currently operating facilities, should not yet be ruled out. The...

Martin, Andrew V; Caleman, Carl; Quiney, Harry M

2015-01-01T23:59:59.000Z

27

Improved Combustion Health Monitoring Techniques - Longer Life, Higher Availability  

NLE Websites -- All DOE Office Websites (Extended Search)

Combustion Health Combustion Health Monitoring Techniques Longer Life, Higher Availability Georgia Tech Jerry Seitzman SR102 * Modern Dry Low Emissions combustors have low emissions, but at a cost - significantly lower availability and reliability than "conventional" systems * The input data to the combustor monitor is pressure fluctuations, same as in currently available systems, but from this project the system analyzes the data differently, accounting for changes such as ambient temperature and doing analyses that show trends which indicate when planned maintenance should be performed to avoid an unplanned shut down. * Technology Transfer: Worked with 3 GT manufacturers. Method licensed to turbine monitoring company and installed at a number of power plants in the United States.

28

Moderate threat causes longer lasting disruption to processing in anxious individuals  

E-Print Network (OSTI)

Moderate threat causes longer lasting disruption to processing in anxious individuals Sophie: Forster S, Castle E, Nunez-elizalde AO and Bishop SJ(2014) Moderate threat causes longer lasting in anxiety1 Moderate threat causes longer lasting disruption to processing2 in anxious individuals.3 Sophie

Bishop, Sonia

29

Duke Health Briefs: Positive Outlook Linked to Longer Life in Heart Patients  

E-Print Network (OSTI)

Duke Health Briefs: Positive Outlook Linked to Longer Life in Heart Patients keywords : CardiologyMinute. Here's some health advice to take to heart: if you want to live longer, stay happy. A recent Duke study of more than 800 heart patients found that those who reported experiencing more positive emotions

Hunter, David

30

U.S. No Longer Building Any Nuclear Weapons | National Nuclear Security  

National Nuclear Security Administration (NNSA)

No Longer Building Any Nuclear Weapons | National Nuclear Security No Longer Building Any Nuclear Weapons | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > U.S. No Longer Building Any Nuclear Weapons U.S. No Longer Building Any Nuclear Weapons May 10, 1992 Washington, DC U.S. No Longer Building Any Nuclear Weapons

31

Breaking Up (Hydrogen) No Longer As Hard To Do | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Breaking Up (Hydrogen) No Longer As Hard To Do Breaking Up (Hydrogen) No Longer As Hard To Do Breaking Up (Hydrogen) No Longer As Hard To Do December 29, 2011 - 1:12pm Addthis Researchers at Argonne National Lab have recently developed a process to improve the efficiency of producing hydrogen to run cars such as this prototype, which was developed at the Oakridge National Lab. | Photo courtesy of Oak Ridge National Laboratory. Researchers at Argonne National Lab have recently developed a process to improve the efficiency of producing hydrogen to run cars such as this prototype, which was developed at the Oakridge National Lab. | Photo courtesy of Oak Ridge National Laboratory. Charles Rousseaux Charles Rousseaux Senior Writer, Office of Science What does this project do? Researchers have new insight into producing pure hydrogen -- a

32

Breaking Up (Hydrogen) No Longer As Hard To Do | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Breaking Up (Hydrogen) No Longer As Hard To Do Breaking Up (Hydrogen) No Longer As Hard To Do Breaking Up (Hydrogen) No Longer As Hard To Do December 29, 2011 - 1:12pm Addthis Researchers at Argonne National Lab have recently developed a process to improve the efficiency of producing hydrogen to run cars such as this prototype, which was developed at the Oakridge National Lab. | Photo courtesy of Oak Ridge National Laboratory. Researchers at Argonne National Lab have recently developed a process to improve the efficiency of producing hydrogen to run cars such as this prototype, which was developed at the Oakridge National Lab. | Photo courtesy of Oak Ridge National Laboratory. Charles Rousseaux Charles Rousseaux Senior Writer, Office of Science What does this project do? Researchers have new insight into producing pure hydrogen -- a

33

Immunotherapy for Primary Brain Tumors: No Longer a Matter of Privilege  

Science Journals Connector (OSTI)

...editorial CCR Focus Immunotherapy for Primary Brain Tumors: No Longer a Matter of Privilege...confines of the toxicity-averse normal brain. This review highlights the caveats and challenges to immunotherapy for primary brain tumors, as well as reviewing modalities...

Peter E. Fecci; Amy B. Heimberger; John H. Sampson

2014-11-15T23:59:59.000Z

34

Impact of Motor Failures on Payback Periods  

E-Print Network (OSTI)

developed by the Washington State Energy Office and funded by the U.S. Department of Energy and the Bonneville Power Administration to aid in the selection of EE motors. MotorMaster's database contains information on over 10, 000 available motors... developed by the Washington State Energy Office and funded by the U.S. Department of Energy and the Bonneville Power Administration to aid in the selection of EE motors. MotorMaster's database contains information on over 10, 000 available motors...

Cheek, K. F.; Pillay, P.; Dudley, K. J.

35

Residential GSHPs: Efficiency With Short Payback Periods  

SciTech Connect

This article discusses ground source heat pumps (GSHPs) for residential application as an alternative to conventional HVAC systems. A listing of current space heating energy sources are presented which are then followed by a technology overview as advances have made GSHPs more efficient. The article concludes with potential energy savings offered by GSHPs and a brief market overview.

Cooperman, Alissa; Dieckmann, John; Brodrick, James

2012-04-30T23:59:59.000Z

36

Testing, Modeling, and Monitoring to Enable Simpler, Cheaper, Longer-lived Surface Caps  

SciTech Connect

Society has and will continue to generate hazardous wastes whose risks must be managed. For exceptionally toxic, long-lived, and feared waste, the solution is deep burial, e.g., deep geological disposal at Yucca Mtn. For some waste, recycle or destruction/treatment is possible. The alternative for other wastes is storage at or near the ground level (in someone's back yard); most of these storage sites include a surface barrier (cap) to prevent downward water migration. Some of the hazards will persist indefinitely. As society and regulators have demanded additional proof that caps are robust against more threats and for longer time periods, the caps have become increasingly complex and expensive. As in other industries, increased complexity will eventually increase the difficulty in estimating performance, in monitoring system/component performance, and in repairing or upgrading barriers as risks are managed. An approach leading to simpler, less expensive, longer-lived, more manageable caps is needed. Our project, which started in April 2002, aims to catalyze a Barrier Improvement Cycle (iterative learning and application) and thus enable Remediation System Performance Management (doing the right maintenance neither too early nor too late). The knowledge gained and the capabilities built will help verify the adequacy of past remedial decisions, improve barrier management, and enable improved solutions for future decisions. We believe it will be possible to develop simpler, longer-lived, less expensive caps that are easier to monitor, manage, and repair. The project is planned to: (a) improve the knowledge of degradation mechanisms in times shorter than service life; (b) improve modeling of barrier degradation dynamics; (c) develop sensor systems to identify early degradation; and (d) provide a better basis for developing and testing of new barrier systems. This project combines selected exploratory studies (benchtop and field scale), coupled effects accelerated aging testing at the intermediate meso-scale, testing of new monitoring concepts, and modeling of dynamic systems. The emphasis on meso-scale (coupled) tests, accelerated effects testing, and dynamic modeling differentiates the project from other efforts, while simultaneously building on that body of knowledge. The performance of evapotranspiration, capillary, and grout-based barriers is being examined. To date, the project can report new approaches to the problem, building new experimental and modeling capabilities, and a few preliminary results.

Piet, S. J.; Breckenridge, R. P.; Burns, D. E.

2003-02-25T23:59:59.000Z

37

Testing, Modeling, and Monitoring to Enable Simpler, Cheaper, Longer-Lived Surface Caps  

SciTech Connect

Society has and will continue to generate hazardous wastes whose risks must be managed. For exceptionally toxic, long-lived, and feared waste, the solution is deep burial, e.g., deep geological disposal at Yucca Mtn. For some waste, recycle or destruction/treatment is possible. The alternative for other wastes is storage at or near the ground level (in someones back yard); most of these storage sites include a surface barrier (cap) to prevent downward water migration. Some of the hazards will persist indefinitely. As society and regulators have demanded additional proof that caps are robust against more threats and for longer time periods, the caps have become increasingly complex and expensive. As in other industries, increased complexity will eventually increase the difficulty in estimating performance, in monitoring system/component performance, and in repairing or upgrading barriers as risks are managed. An approach leading to simpler, less expensive, longer-lived, more manageable caps is needed. Our project, which started in April 2002, aims to catalyze a Barrier Improvement Cycle (iterative learning and application) and thus enable Remediation System Performance Management (doing the right maintenance neither too early nor too late). The knowledge gained and the capabilities built will help verify the adequacy of past remedial decisions, improve barrier management, and enable improved solutions for future decisions. We believe it will be possible to develop simpler, longer-lived, less expensive caps that are easier to monitor, manage, and repair. The project is planned to: a) improve the knowledge of degradation mechanisms in times shorter than service life; b) improve modeling of barrier degradation dynamics; c) develop sensor systems to identify early degradation; and d) provide a better basis for developing and testing of new barrier systems. This project combines selected exploratory studies (benchtop and field scale), coupled effects accelerated aging testing at the intermediate meso-scale, testing of new monitoring concepts, and modeling of dynamic systems. The emphasis on meso-scale (coupled) tests, accelerated effects testing, and dynamic modeling differentiates the project from other efforts, while simultaneously building on that body of knowledge. The performance of evapotranspiration, capillary, and grout-based barriers is being examined. To date, the project can report new approaches to the problem, building new experimental and modeling capabilities, and a few preliminary results.

Piet, Steven James; Breckenridge, Robert Paul; Burns, Douglas Edward

2003-02-01T23:59:59.000Z

38

Thermocouple protection systems for longer service life in slagging gasifier environments  

SciTech Connect

To ensure reliable and efficient operation, gasifier operators would like to be able to continuously monitor system temperature. In many slagging gasifiers, temperature measurement is accomplished by several thermocouples embedded at various locations in the gasifier wall. Unfortunately, these thermocouple devices are very susceptible to early failure, either as the result of mechanical stresses or exposure to the harsh slagging environment, making long-term continuous temperature monitoring difficult. At the Albany Research Center, we are developing strategies to improve the ceramic protection assembly that is used to shield the thermocouple wires from direct exposure to the gasifier atmosphere. In this talk we will describe this multi-component ceramic protection system and present test results, which indicate that, the protection system should provide longer device service life in slagging gasifier environments.

Kwong, Kyei-Sing; Chinn, Richard E.; Iverson, Larissa A.; Bennett, James P.; Dogan, Cynthia P.

2003-01-01T23:59:59.000Z

39

Improving performance and rotordynamic characteristics of injection compressors via much longer balance-piston and division-wall seals  

E-Print Network (OSTI)

Predictions are presented for a selected compressor using longer hole-pattern seals with L/D ratios from 0.5 to 2.5. Results were obtained for back-to-back and in-line compressors with the seal located at mid-span and at 82% of rotor span...

Rodrigues Rodrigues, Margarita

2009-05-15T23:59:59.000Z

40

Break-even Costs for Cow/Calf Producers  

E-Print Network (OSTI)

of calf by sub- *Professor, Extension Beef Cattle Specialist and Research Sci- entist; The Texas A&M University System. L-5220 9/98 Texas Agricultural Extension Service? Chester P. Fehlis, Deputy Director ? The Texas A&M University System ? College Station... per cow calf weight ($)180 200 220 240 260 280 300 320 340 360 380 400 350 lbs. .............................................. impossible, unless costs are below $175 per cow ........................................... 450 lbs. 80 89 98 >100...

Sprott, L. R.

1998-10-14T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Directions in low-level radioactive waste management. Low-level radioactive waste disposal: commercial facilities no longer operating  

SciTech Connect

This publication discusses three commercial facilities-no longer operating-that have received and now contain low-level radioactive waste. The facilities are located at West Valley, New York; Maxey Flats, Kentucky; and Sheffield, Illinois. All three of the facilities were selected and developed in the 1960s. The onset of water management problems caused the closure of the sites at West Valley and Maxey Flats in 1975 and 1977, respectively. Closure of the Sheffield site occurred in 1978, after the operator experienced site problems and consequent lengthy delays in its license renewal procedures. The document provides detailed explanation of the history, basis for closure, and current status of each facility. This information is intended, primarily, to assist state officials-executive, legislative, and agency-in planning for, establishing, and managing low-level waste disposal facilities.

Berlin, R.E.; Tuite, P.T.

1982-10-01T23:59:59.000Z

42

Carbon and energy payback of variable renewable generation  

E-Print Network (OSTI)

The continued drive to reduce Greenhouse Gas (GHG) emissions in order to mitigate climate change has led to an increase in demand for low-carbon energy sources, and the development of new technologies to harness the ...

Thomson, Rachel Camilla

2014-06-30T23:59:59.000Z

43

Effective Steam Trap Selection/Maintenance - Its Payback  

E-Print Network (OSTI)

In oil refineries and petrochemical plants large number of steam traps are used to discharge condensate from steam mains, tracers and process equipment. Early efforts on steam traps focused almost exclusively on their selection and sizing...

Garcia, E.

1984-01-01T23:59:59.000Z

44

Evolution of Perovskite Photovoltaics and Decrease in Energy Payback Time  

Science Journals Connector (OSTI)

Figure 2. Distribution of estimates of CEeD [kW?he/Wp] of PV systems for a variety of technologies (sc-Si, mc-Si, a-Si, ribbon, CdTe, and CIGS). ...

Prashant V. Kamat

2013-11-07T23:59:59.000Z

45

Ceramic tube seals cut heat loss, achieve six month payback  

SciTech Connect

The methane reformer at the Celanese Chemical Company's Bishop, TX plant operates at approximately 1900/sup 0/F. The reformer has 32 tubes (9'' diameter) that pass through the firebox. Openings around the tubes measure 11'' in diameter to accommodate horizontal and vertical thermal expansion and movement as well as to facilitate tube removal. The gaps around the tubes permitted cool air to be drawn into the firebox (caused by slight negative pressure) and also allowed radiant heat to escape causing the reformer to operate at a lower than desired level of thermal efficiency. Celanese contracted to retrofit the old rigid firebrick roof in the methane reformer with a 10'' thick ceramic fiber module lining. The gaps around the tubes were sealed by using a special tube seal made from Nextel woven ceramic fiber fabric, a 1984 CHEMICAL PROCESSING Vaaler Award winner (Mid-November 1984, p.52). The Nextel fabric used in this application is a heat resistant textile that has a continuous use temperature of 2200/sup 0/F - well above the 1900/sup 0/F operating temperature of the reformer. The tube seals have been working exactly as intended, verified by observation through inspection ports. Temperatures in the penthouse area above the roof dropped from 240/sup 0/F to 150/sup 0/F. The reduction in heat losses has been attributed to the elimination of the gaps around each tube by the seals and to the improved K-factor of the ceramic module lining. The tube seals have paid for themselves within six months of installation. At that time, the seal boots were inspected and showed no signs of wear. With these results, the improved efficiency of the methane reformer promises to yield additional economic benefits.

Not Available

1985-11-01T23:59:59.000Z

46

Vehicle engine use when no longer in transit; exceptions -Vehicle idling gets zero miles per gallon; unnecessary idling wastes fuel and pollutes.  

E-Print Network (OSTI)

gallon; unnecessary idling wastes fuel and pollutes. Running an engine at low speed (idling) also causes the point of view of both emissions and fuel consumption. Unless exempted in the following sectionVehicle engine use when no longer in transit; exceptions - Vehicle idling gets zero miles per

Powers, Robert

47

PV modules, with a life measured in decades, will typically be in place longer than the outdoor unit of a HVAC system.  

E-Print Network (OSTI)

unit of a HVAC system. When the performance of an HVAC system deteriorates, it is usually inspected remain installed on the roof even after the system is no longer being used. Although HVAC units have only jumpers and screws effectively bond all parts of the listed device together. HVAC components are typically

Johnson, Eric E.

48

Tell Barack Obama the Truth The Whole Truth Embers of election night elation will glow longer than any prior election. Glowing even  

E-Print Network (OSTI)

Tell Barack Obama the Truth ­ The Whole Truth Embers of election night elation will glow longer consequences for all life on the planet. The President-elect himself needs to be well-informed about be two monstrous consequences of releasing the CO2 from all of the oil, gas and coal, consequences

Hansen, James E.

49

A BreakEven Formulation for Evaluating Branch Predictor Energy Efficiency #  

E-Print Network (OSTI)

A Break­Even Formulation for Evaluating Branch Predictor Energy Efficiency # Michele Co, Dee A demonstrated that a better branch pre­ dictor can increase the energy­efficiency of the system, even if the new a simple, effective metric for eval­ uating the tradeoff between processor energy­efficiency and branch

Co, Michele

50

'Thirsty' Metals Key to Longer Battery Lifetimes  

NLE Websites -- All DOE Office Websites (Extended Search)

Contact: Kathy Kincade, +1 510 495 2124, kkincade@lbl.gov PCCPxantheascover Imagine a cell phone battery that lasted a whole week on a single charge. A car battery that worked...

51

Catalysis: "No Longer a Black Art"  

Science Journals Connector (OSTI)

...known as synthesis gas or syngas; syngas can be converted into...industry ha-ve been natural gas and the light frac-tions...sources, par-ticularly syngas and methanol. The best...research will lead to substitutes that will do the same...

THOMAS H. MAUGH II

1983-02-04T23:59:59.000Z

52

Energy Conservation Recommendations, Implementation Costs, and Projected Paybacks for Georgia's Targeted Schools and Hospitals Conservation Program  

E-Print Network (OSTI)

During the past year the Georgia Tech Research Institute performed technical assistance studies on over 100 school and hospital buildings under a program funded by the Governor's Office of Energy Resources. This program is known as the Targeted...

Brown, M. L.; Moore, D. M.

1988-01-01T23:59:59.000Z

53

Energy intensities, \\{EROIs\\} (energy returned on invested), and energy payback times of electricity generating power plants  

Science Journals Connector (OSTI)

The energy returned on invested, EROI, has been evaluated for typical power plants representing wind energy, photovoltaics, solar thermal, hydro, natural gas, biogas, coal and nuclear power. The strict exergy concept with no primary energy weighting, updated material databases, and updated technical procedures make it possible to directly compare the overall efficiency of those power plants on a uniform mathematical and physical basis. Pump storage systems, needed for solar and wind energy, have been included in the EROI so that the efficiency can be compared with an unbuffered scenario. The results show that nuclear, hydro, coal, and natural gas power systems (in this order) are one order of magnitude more effective than photovoltaics and wind power.

D. Weibach; G. Ruprecht; A. Huke; K. Czerski; S. Gottlieb; A. Hussein

2013-01-01T23:59:59.000Z

54

Payback Analysis for Ground Source Heat Pump Retrofits Using eQuest Modeling Software  

E-Print Network (OSTI)

There has been much research and analysis done on the performance and potential energy savings related to installing a ground source heat pump (GSHP) system. Much of this research has been dedicated to the new construction industry, and focused on a...

Wahlers, Drake

2011-12-16T23:59:59.000Z

55

Uncertainty and sensitivity analyses of ballast life-cycle cost and payback period  

SciTech Connect

The paper introduces an innovative methodology for evaluating the relative significance of energy-efficient technologies applied to fluorescent lamp ballasts. The method involves replacing the point estimates of life cycle cost of the ballasts with uncertainty distributions reflecting the whole spectrum of possible costs, and the assessed probability associated with each value. The results of uncertainty and sensitivity analyses will help analysts reduce effort in data collection and carry on analysis more efficiently. These methods also enable policy makers to gain an insightful understanding of which efficient technology alternatives benefit or cost what fraction of consumers, given the explicit assumptions of the analysis.

McMahon, James E.; Liu, Xiaomin; Turiel, Ike; Hakim, Sajid; Fisher, Diane

2000-06-01T23:59:59.000Z

56

Building a market for small wind: The break-even turnkey cost of residential wind systems in the United States  

E-Print Network (OSTI)

Wind Energy Association WindPower 2002 Conference, 3-5 JunePRESENTED AT GLOBAL WINDPOWER 2004 CHICAGO, ILLINOIS W IND EModel, prepared by Bergey Windpower Co. for the National

Edwards, Jennifer L.; Wiser, Ryan; Bolinger, Mark; Forsyth, Trudy

2004-01-01T23:59:59.000Z

57

Break-Even Investment in a Wind Energy Conversion System for an Irrigated Farm on the Texas High Plains  

E-Print Network (OSTI)

The purpose of this study was to quantify the benefits of using a wind energy system for irrigation. The value of wind energy was estimated on both a static basis (where the annual value of wind power was assumed to be constant over the life...

Hardin, D. C.; Lacewell, R. D.

1981-01-01T23:59:59.000Z

58

Energy Cost Control: How the Money Works  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Russell Russell Energy PathFINDER www.energypathfinder.com crussell@energypathfinder.com Energy Cost Control: How the Money Works (Copies of these slides to be provided by DOE-ITP) (c)2009 Energy Pathfinder Mangement Consulting, LLC www.energypathfinder.com 2 Samuel Goldwyn (1879-1974) "Spare no expense to save money on this one." (c)2009 Energy Pathfinder Mangement Consulting, LLC www.energypathfinder.com 3 OUTLINE A "money" perspective on energy Projects, payback Make-or-buy Annualized cost analysis Cost of doing nothing Break-even analysis Budget for additional analysis (c)2009 Energy Pathfinder Mangement Consulting, LLC www.energypathfinder.com 4 A print-on-demand publication www.lulu.com/content/2152882 About Christopher Russell

59

TABL Longer Hard Hat description-Sept 26.PDF  

NLE Websites -- All DOE Office Websites (Extended Search)

Hat Use and Inspection Hat Use and Inspection Hard hats are an important piece of personal protective equipment (PPE). Hard hats worn at Berkeley Lab must comply with the requirements of ANSI Z89.1 for impact protection and electrical performance. PPE can only be effective if it is used properly and the wearer understands its limitations, care, and maintenance. OSHA 29 CFR 1910.132 requires that PPE be maintained in a sanitary and reliable condition. Defective or damaged equipment should never be used. To inspect PPE, emp loyees should follow manufacturer's recommendations for specific inspection procedures. Hard Hat Inspection - Bullard Hard Hats Bullard 3000 hard hats are available at LBL Central Stores, located in B78. Bullard User Information provides detailed inspection procedures for all Bullard hard hats.

60

Glioblastoma and Increased Survival with Longer Chemotherapy Duration  

E-Print Network (OSTI)

of GBM. The OS probability was 54% (SE = 0.068) at one year, 28.3% (SE = 0.064) at two years, 17.8% (SE = 0.059) at three years and 4% (SE=0.041) at five years. The median PFS time in this study group was eight months (95% CI = 4.0 - 9.0 mo...

Aboujaoude, Dory

2013-05-31T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Slagging Gasifier Refractories: A New Pathway to Longer Refractory Life  

Science Journals Connector (OSTI)

Solid fuel slagging gasification to convert coal or petroleum coke feedstocks into syngas has rapidly evolved over the last 25 years. The gasifier is a high temperature, high pressure reaction...

Mark Schnake

2013-01-01T23:59:59.000Z

62

Sandia National Laboratories: capture more wind with longer rotors  

NLE Websites -- All DOE Office Websites (Extended Search)

Plan Webinar Wednesday, Jan. 14 Sandian Presents on PV Failure Analysis at European PV Solar Energy Conference and Exhibition (EU PVSC) EC Top Publications Design and Analysis for...

63

Longer life for glyco-based stationary engine coolants  

SciTech Connect

Large, stationary diesel engines used to compress natural gas that is to be transported down pipelines generate a great deal of heat. Unless this heat is dissipated efficiently, it will eventually cause an expensive breakdown. Whether the coolant uses ethylene glycol or propylene glycol, the two major causes of glycol degradation are heat and oxidation. The paper discusses inhibitors that enhance coolant service life and presents a comprehensive list of do`s and don`ts for users to gain a 20-year coolant life.

Hohlfeld, R. [Dow Chemical Co., Houston, TX (United States)

1996-07-01T23:59:59.000Z

64

Boiler Combustion Control and Monitoring System  

Energy.gov (U.S. Department of Energy (DOE))

Efficiency of existing boilers can be improved in three ways; replacement with new boilers, replacement of the burner, or installation of a combustion control system. While installation of a new boiler or replacement of the burner can lead to the greatest efficiency gains, the higher costs associated with these measures typically leads to longer payback periods than combustion control systems.

65

APPLYING A PV GRID-TIED SYSTEM IN INDUSTRIAL SECTOR WITH PAYBACK REDUCTION: A CASE STUDY IN K.S.A.  

E-Print Network (OSTI)

??The key to creating clean energy is to use renewable energy sources. Saudi Arabia has an abundance of solar radiation due to its geographical location; (more)

Oweedha, Wayel

2013-01-01T23:59:59.000Z

66

Mixing Appropriations and Private Financing to Meet Federal Energy Management Goals  

SciTech Connect

This report compares several strategies for mixing appropriations and private financing in a typical federal agency that has identified $100 million in required energy conservation measures (ECMs) at its facilities. The analysis shows that in order to maximize savings and minimize overall life-cycle cost, the best strategy for the agency is to use private financing to fund as many of the ECMs as possible within the statutory maximum 25-year project term, beginning with the ECMs with the shortest paybacks. Available appropriations should either be applied to a privately financed project as a one-time payment from savings (i.e., as a buydown ) or used to directly fund longer-payback ECMs that cannot be included in the privately financed project.

Shonder, John A [ORNL

2012-06-01T23:59:59.000Z

67

Economic Analysis of Ilumex, A Project to Promote Energy-Efficient Residential Lighting in Mexico  

SciTech Connect

A higher penetration of compact fluorescent lamps (CFLs) for household lighting can reduce growth in peak electricity demand, reduce sales of subsidized electricity, and lessen environmental impacts. This paper describes an economic analysis of a project designed to promote high penetration rates of CFLs in two cities in Mexico. Our analysis indicates that the project will bring substantial net economic benefits to Mexico, the utility, and the average customer. In the absence of any subsidy to CFLs, most customers will see a payback period longer than two years. By sharing some of the anticipated net benefit, CFE, the utility company, can reduce the payback period to a maximum of two years for all customers. CFE's role is thus crucial to the successful implementation of the project. Expanding the Ilumex project to a Mexico-wide program would make a significant contribution towards meeting the planned addition of generation capacity by the year 2000.

Sathaye, Jayant A.; Friedmann, R.; Meyers, S.; de Buen, O.; Gadgil, A.J.; Vargas, E.; Saucedo, R.

1993-11-01T23:59:59.000Z

68

Over the Counter but No Longer under the Radar Pediatric Cough and Cold Medications  

Science Journals Connector (OSTI)

...have not been established." In 2006, the American College of Chest Physicians found that "literature regarding over-the-counter cough medications does not support the efficacy of such products in the pediatric age group." Meanwhile, poison-control centers have reported more than 750,000 calls of concern... Dr. Joshua Sharfstein, Marisa North, and Dr. Janet Serwint write that, in October, an FDA advisory committee voted in favor of immediate action against the use of cough and cold medications in children under 6. After the meeting, the major manufacturers ...

Sharfstein J.M.North M.Serwint J.R.

2007-12-06T23:59:59.000Z

69

Colorado: Isothermal Battery Calorimeter Quantifies Heat Flow, Helps Make Safer, Longer-lasting Batteries  

Energy.gov (U.S. Department of Energy (DOE))

Partnered with NETZSCH, the National Renewable Energy Laboratory (NREL) developed an Isothermal Battery Calorimeter (IBC) used to quantify heat flow in battery cells and modules.

70

Imagination Made Tangible Aspiring designers at NJSOA are no longer limited to two  

E-Print Network (OSTI)

such as Autodesk Rev-It and Rhinoceros to convert digital designs into three-dimensional constructs. The systems of the building division of the 2004 AUTODESK INNOVATION AWARDS com- petition. Judging criteria included design

Bieber, Michael

71

www.compoundingworld.com June 2012 | compounding world 45 Biodegradability no longer dominates  

E-Print Network (OSTI)

be in question following the decision by agricultural products group Archer Daniels Midland to pull out of its variety of somewhat contradictory lcA analysis of the benefits they deliver. "my understanding

Blanchette, Robert A.

72

ACDA: LBJ Supports Agency Plea for Bigger Budget, Longer Life; but Old Problems Still Remain  

Science Journals Connector (OSTI)

...Announcements The U.S. Atomic Energy Commis-sion is soliciting...being accepted for summer internships for graduate stu-dents...propagation. (M. S. Green, Chief, Statistical...The U.S. Atomic Energy Commis-sion has announced...charge. (U.S. Atomic Energy Com-mission, P.O...

Elinor Langer

1965-02-05T23:59:59.000Z

73

Longer in the tooth, shorter in the record? The evolutionary correlates of hypsodonty in Neogene ruminants  

Science Journals Connector (OSTI)

...otherwise conducive to increased dental wear [9,10]. Hypsodont ruminants rapidly...M. 2007 Symmetric waxing and waning of marine invertebrate genera. Paleobiology 33...and fall of species occupancy in Cenozoic marine molluscs. Science 318, 1131-1134...

2011-01-01T23:59:59.000Z

74

Enhancement of electric oxygen-iodine laser performance using a rectangular discharge and longer gain length  

E-Print Network (OSTI)

is produced by a single radio-frequency-excited electric discharge sustained in an O2­He­NO gas mixture a is produced by a single transverse capacitive 13.56 MHz rf excited electric discharge sustained in an O2­He discharge channel section has an internal flow cross section of 1.6 cm by 7.5 cm. The plasma zone filled

Carroll, David L.

75

allowing a longer period of infection within an individual host and by facilitating re-  

E-Print Network (OSTI)

T cells and neutralizing antibodies. It augments viral load and thus accelerates the destruc- tion of CD4, dis- cussing genetic differences among hosts in theirimmuneresponsesandimmunemem- ory profiles Biology, Harvard University, Cambridge, Massachusetts 02138, USA. Martin Nowak is at the Institute

Cai, Long

76

Welcome to Prince House Dormitories are no longer enough for the growing amounts of students. Prince  

E-Print Network (OSTI)

1F Lobby Reception Desk TV Room Microwave, toaster, electric pot Visiting Area Wireless, fridge, and A/C. NOT included: electricity, cable TV, telephone, and bedding. Double uit: S Rent

Wu, Yih-Min

77

22 APPLIED NEUROLOGY April 2006 www.appneurology.com and to have a much longer half-  

E-Print Network (OSTI)

than ROS.13 Thus, acrolein may be a key factor in perpetuat- ing oxidative stress, and it may represent an effective target for therapeutic treatments. This review presents evidence that acrolein toxicity occurs present preliminary data suggesting that an acrolein-trapping agent may significantly enhance viability

Shi, Riyi

78

Florida Current transport variability: An analysis of annual and longer-period signals  

E-Print Network (OSTI)

n f o Article history: Received 23 June 2009 Received in revised form 9 December 2009 Accepted 7 scale variability given the strong higher frequency energy present. The annual cycle represents less variability. Comparison of the Florida Current, NAO and wind stress curl records shows that a recently

79

High Speed Pumps Are No Longer Limited to Low Flow Applications  

E-Print Network (OSTI)

Historically, the high-speed centrifugal pump was developed prior to World War II for rocket engine fuel pump applications for its advantages of light weight, compactness and dry running capability. Industrial derivatives were introduced in the 60s...

Burke, P. Y.

80

World food and agriculture: Outlook for the medium and longer term  

Science Journals Connector (OSTI)

...waste and nonfood uses at the household level, e.g., food fed to pets...the former U.S.S.R., Japan, Australia, New Zealand...other than Argentina, 33 to Japan and Israel, and 6 to the area...Agriculture Developing Countries Energy Intake Food Supply Humans Nutritional...

Nikos Alexandratos

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

List of issues for next dynamic window prototype/longer-term research  

NLE Websites -- All DOE Office Websites (Extended Search)

075 075 A First-Generation Prototype Dynamic Residential Window Christian Kohler, Howdy Goudey, and Dariush Arasteh Windows and Daylighting Group Lawrence Berkeley National Laboratory Berkeley CA 94720 October 26, 2004 Abstract We present the concept for a "smart" highly efficient dynamic window that maximizes solar heat gain during the heating season and minimizes solar heat gain during the cooling season in residential buildings. We describe a prototype dynamic window that relies on an internal shade, which deploys automatically in response to solar radiation and temperature. This prototype was built at Lawrence Berkeley National Laboratory from commercially available "off-the-shelf" components. It is a stand-alone, standard-size

82

What is the SEAP Website? The SEAP Guide is no longer produced in printed format  

E-Print Network (OSTI)

: Frank Fenner Building (#42) E: science.enquiries@anu.edu.au W: http://cos.anu.edu.au Graduate Entry

83

Development and Application of Advanced Models for Steam Hydrogasification: Process Design and Economic Evaluation  

E-Print Network (OSTI)

due to the high crude oil price and also owing toin terms of Breakeven Crude Oil Price (BCOP) in $/bbl whichrespectively. Breakeven Crude Oil Price, $/bbl BCOP CERT-2

Lu, Xiaoming

2012-01-01T23:59:59.000Z

84

Application of a feedlot decision model: analysis of South Texas strategies and alternatives  

E-Print Network (OSTI)

Of Gain Breakeven Prices Projected Returns Per Animal Projected Net Returns Per Year Marginal Costs 44 47 50 54 57 NEGATIVE PRICE MARGIN SCENARIO 61 VZ VII Cost Of Gain Breakeven Prices Projected Returns Per Animal Projected Net Heifer... Alternate Placement and Finishing Weights 56 17 Heifer Cost of Gains(Including Interests) , ($/lb. ). 18 Heifez Breakeven prices(Including Interest)a, ($/lb. ). 63 65 19 Minimum Breakeven Prices for Heifers by Placement Weight and Scenario, ($/lb...

Corona, Eloy Roberto

2012-06-07T23:59:59.000Z

85

Strategic analysis of energy efficiency projects: Case study of a steel mill in Manitoba  

Science Journals Connector (OSTI)

Abstract An analysis of energy efficiency opportunities at a steel mill were undertaken using two energy modeling tools, the \\{RETScreen\\} Clean Energy Project Analysis Software (RETScreen) and the Process Heat Assessment and Survey Tool (PHAST). A number of energy efficiency opportunities were found to be feasible in this analysis at Gerdau North America Long Steel-Manitoba Mill. The waste heat recovery opportunities included: (1) preheating combustion air in the ladle preheater, with an estimated energy savings of 22,000GJ/yr and a payback period of 10 months; and, (2) preheating billets with an estimated energy savings of 60,323GJ/yr and a payback period of three years. Changing natural gas space heaters to more energy efficient and safer models was both socially and economically beneficial, although having a longer payback period of 4.5 years. Oxy-fuel combustion was not deemed feasible as oxygen costs negated any natural gas savings and the productivity gains were not considered applicable. The strategic analysis showed that environmental, economic and productivity benefits were larger than the smaller concerns of: production interruption, the economic barriers of capital costs, as well as the risks posed by a downturn in the economy or by outsourcing.

Shirley Thompson; Minxing Si

2014-01-01T23:59:59.000Z

86

FEMP Technology Brief: Boiler Combustion Control and Monitoring System  

Energy.gov (U.S. Department of Energy (DOE))

There are more than 45,000 industrial and commercial boilers larger than 10 MMBtu/hr in the United States with a total fuel input capacity of 2.7 million MMBtu/hr. Efficiency of existing boilers can be improved in three ways; replacement with new boilers, replacement of the burner, or installation of a combustion control system. While installation of a new boiler or replacement of the burner can lead to the greatest efficiency gains, the higher costs associated with these measures typically leads to longer payback periods than combustion control systems.

87

Clean Cities Offers Fleets New Tool to Evaluate Benefits of Alternative Fuel Vehicles  

Energy.gov (U.S. Department of Energy (DOE))

The AFLEET Tool allows fleets to calculate payback periods and emissions benefits of alternative fuel vehicles.

88

longer be a region of uncertainty near the centre of the cable. Further improvements are still possible. Cooling a photo-  

E-Print Network (OSTI)

by the four point probe method. Standard Ti-Pd-Ag contacts were sputtered and lift- off delineated on both

del Alamo, Jesús A.

89

No longer hungry in hospital: improving the hospital mealtime experience for older people through action research1)  

Science Journals Connector (OSTI)

Het voorkomen van ondervoeding bij ziekenhuispatinten wordt al lang erkend als groot probleem. Uit recent onderzoek blijkt dat ondervoeding bij ruim 20 procent van de ziekenhuispatinten voorkomt.2) Regelmati...

Karen Cox

2009-12-01T23:59:59.000Z

90

Education no longer deferred: the possibilities of educating urban african american males in a single gender school.  

E-Print Network (OSTI)

The purpose of this study is to investigate the emerging school culture of Excel Academy for Boys [Pseudonym] located in the Southwestern region of the United States, and how it contributes to the social and academic development of urban African...

James, Marlon C.

2009-05-15T23:59:59.000Z

91

Comparison of marginal abatement cost curves for 2020 and 2030: longer perspectives for effective global GHG emission reductions  

Science Journals Connector (OSTI)

This study focuses on analyses of greenhouse gas (GHG) emission reductions, from the perspective of ... order to seek effective reductions. We assessed GHG emission reduction potentials and costs in 2020 ... 2030...

Keigo Akimoto; Fuminori Sano; Takashi Homma; Kenichi Wada

2012-07-01T23:59:59.000Z

92

MalE of Group A Streptococcus Participates in the Rapid Transport of Maltotriose and Longer Maltodextrins  

Science Journals Connector (OSTI)

...a-amylase is unable to break down maltotriose, which allows...salivary isoamylases on starch and glycogen. Clin...Muhlemann. 1981. Oral starch degradation and its influence...Levine. 1993. Salivary alpha-amylase: role in dental plaque...

Samuel A. Shelburne III; Han Fang; Nnaja Okorafor; Paul Sumby; Izabela Sitkiewicz; David Keith; Payal Patel; Celest Austin; Edward A. Graviss; James M. Musser; Dar-Chone Chow

2007-01-26T23:59:59.000Z

93

Color No Longer A Sign of Bondage: Race, Identity and the First Kansas Colored Volunteer Infantry Regiment (1862-1865)  

E-Print Network (OSTI)

[Manuscript: Boston: January 1873]. (Boston, Massachusetts: New England Historical & Genealogical Society, transcription by Fort Scott National Historic Site) - hereafter referred to as Earle Journal, 13; Alberta Pantle, The Story of a Kansas Freedman...

Ringquist, John Paul

2011-08-31T23:59:59.000Z

94

Organic and Elemental Carbon Measurements during ACE-Asia Suggest a Longer Atmospheric Lifetime for Elemental Carbon  

Science Journals Connector (OSTI)

Additional measurements made aboard the ship and used in this analysis include concentrations of SO2 and total particle number (27), O3 (28), CO (29), and radon (30). ... This research is a contribution to the International Global Atmospheric Chemistry (IGAC) Core Project of the International Geosphere Biosphere Program (IGBP) and is part of the IGAC Aerosol Characterization Experiments (ACE). ...

H.-J. Lim; B. J. Turpin; L. M. Russell; T. S. Bates

2003-06-12T23:59:59.000Z

95

A Time-Variant Probabilistic Model for Predicting the Longer-Term Performance of GFRP Reinforcing Bars Embedded in Concrete  

E-Print Network (OSTI)

Although Glass Fiber Reinforced Polymer (GFRP) has many potential advantages as reinforcement in concrete structures, the loss in tensile strength of the GFRP reinforcing bar can be significant when exposed to the high alkali environments. Much...

Kim, Jeongjoo

2011-08-08T23:59:59.000Z

96

The information in this document is no longer current. It is intended for reference only. TABLE OF CONTENTS  

E-Print Network (OSTI)

OF ENVIRONMENTAL EFFECTS ON CHILD HEALTH CAFFEINE INTAKE, SPONTANEOUS ABORTION, AND REDUCED FETAL GROWTH).....................................................................17 PREVENTING PROBLEM BEHAVIOR AMONG MIDDLE SCHOOL STUDENTS (GOING PLACES)..................17

Rau, Don C.

97

Analysis of Class 8 Hybrid-Electric Truck Technologies Using Diesel, LNG, Electricity, and Hydrogen, as the Fuel for Various Applications  

E-Print Network (OSTI)

various powertrains and alternative fuel options have beenthe corresponding breakeven alternative fuel price needed totruck, hybridization, alternative, fuel cell, fuel economy,

Zhao, Hengbing

2013-01-01T23:59:59.000Z

98

Intense Ion Beam for Warm Dense Matter Physics  

E-Print Network (OSTI)

break-even point in a fusion reactor, or ignition, where theoriginal report on fusion reactors (initially classi?ed). [Inertial Fusion Energy (IFE) reactor and power plant

Heimbucher, Lynn

2008-01-01T23:59:59.000Z

99

Revised feed-in tariff for solar photovoltaic in the United Kingdom: A cloudy future ahead?  

Science Journals Connector (OSTI)

The United Kingdom (UK) started implementing a national Feed-In Tariff (FiT) mechanism on the 1 April 2010, which included specific payment tariffs for solar photovoltaic (PV) installations. However, a revised FiT rate has been put in place starting from 1 April 2012, applicable to any installations with an eligibility date of on or after 3 March 2012. This paper presents, first, an overview of solar PV installation in the UK. This followed by a general concept of the FiT in the UK before analyzing the financial impact of the new FiT rate on the consumers. Similar financial analysis is conducted with selected countries in Europe. The financial analysis investigates the total profit, the average rate of return and the payback period. It is found that the new FiT rate generates very low profit, minimum rate of return and a longer payback period, suggesting a downward trend of solar PV uptake in the future.

Firdaus Muhammad-Sukki; Roberto Ramirez-Iniguez; Abu Bakar Munir; Siti Hajar Mohd Yasin; Siti Hawa Abu-Bakar; Scott G. McMeekin; Brian G. Stewart

2013-01-01T23:59:59.000Z

100

Embodied Energy and Off-Grid Lighting  

E-Print Network (OSTI)

Pay-back Time of Photovoltaic Energy Systems: Present StatusWorld Conference on Photovoltaic Energy Conversion, Vienna,assessment and energy pay-back time of advanced photovoltaic

Alstone, Peter

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Waste to Energy and Absorption Chiller: A Case Study  

E-Print Network (OSTI)

All measured performance characteristics corresponded well to manufacturer's specifications or were within the expected range for this type of incinerator. The simplified economic analysis showed a payback of period 4.5 years. An optimized payback...

Wolpert, J.

1990-01-01T23:59:59.000Z

102

PHEVs Component Requirements and Efficiencies  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

kWh C fuel 3gallon The further you drive, the better the payback Preliminary results Fuel Price Significantly Influences Payback Period 16 C elec 0.07 kWh C battery 4128...

103

Effect of Heat and Electricity Storage and Reliability on Microgrid Viability: A Study of Commercial Buildings in California and New York States  

E-Print Network (OSTI)

efficiency requirements - Maximum emission limits Investment constraints: - Payback period is constrained Storage constraints: - Electricity stored is limited by battery

Stadler, Michael

2009-01-01T23:59:59.000Z

104

Distributed Energy Resources On-Site Optimization for Commercial Buildings with Electric and Thermal Storage Technologies  

E-Print Network (OSTI)

efficiency requirements - Maximum emission limits Investment constraints: - Payback period is constrained Storage constraints: - Electricity stored is limited by battery

Stadler, Michael

2008-01-01T23:59:59.000Z

105

Optimal Technology Selection and Operation of Microgrids in Commercial Buildings  

E-Print Network (OSTI)

efficiency requirements - Maximum emission limits Investment constraints: - Payback period is constrained Storage constraints: - Electricity stored is limited by battery

Marnay, Chris; Venkataramanan, Giri; Stadler, Michael; Siddiqui, Afzal; Firestone, Ryan; Chandran, Bala

2008-01-01T23:59:59.000Z

106

Control of Greenhouse Gas Emissions by Optimal DER Technology Investment and Energy Management in Zero-Net-Energy Buildings  

E-Print Network (OSTI)

efficiency requirements - Maximum emission limits Investment constraints: - Payback period is constrained Storage constraints: - Electricity stored is limited by battery

Stadler, Michael

2010-01-01T23:59:59.000Z

107

Optimal Technology Investment and Operation in Zero-Net-Energy Buildings with Demand Response  

E-Print Network (OSTI)

efficiency requirements - Maximum emission limits Investment constraints: - Payback period is constrained Storage constraints: - Electricity stored is limited by battery

Stadler, Michael

2009-01-01T23:59:59.000Z

108

Bean {alpha}-amylase inhibitor 1 in transgenic peas (Pisum sativum) provides complete protection from pea weevil (Bruchus pisorum) under field conditions  

Science Journals Connector (OSTI)

...equivalent to the break-even cost...Although the {alpha}AI-2 gene...damage reaches the break-even cost of...Inhibition of Larval {alpha}-Amylase. It generally...hydrolyze the starch in these peas...effectiveness in slowing down larval development...

Roger L. Morton; Hart E. Schroeder; Kaye S. Bateman; Maarten J. Chrispeels; Eric Armstrong; Thomas J. V. Higgins

2000-01-01T23:59:59.000Z

109

Heavy vehicle industry site visits: comments from companies and conclusions from technical committee  

SciTech Connect

This report documents the results of several visits with industry as part of the Department of Energy (DOE), office of Transportation Technology, Office of Heavy Vehicle Technology, supported Heavy Vehicle Aerodynamics Project. The purpose of the DOE Heavy Vehicle Aerodynamics Project is to use government resources to bring the aerodynamic expertise available in government organizations and academia to bear in assisting the heavy vehicle industry to reduce aerodynamic drag on trucks. The obvious payback from this investment is the reduction in fuel usage and derivative reduction in the US's dependence on foreign oil imports. This report covers 2 projects: (1) The stated purpose of Project 1 was to provide near-term impact through emphasis on existing tools and capabilities and to focus on the trailer drag problem. (2) The stated purpose of Project 2 was to provide the tools necessary to accomplish the longer term goal of a fully-integrated, aerodynamic tractor-trailer combination.

McCallen, R.

1998-02-01T23:59:59.000Z

110

Financial Analysis  

Energy.gov (U.S. Department of Energy (DOE))

The first step in financing a street lighting retrofit is a detailed financial analysis. Because street lighting systems are designed to last ten or twenty years, or even longer, all aspects of first costs, ongoing expenses, and long-term savings are important. While a preliminary or first-level analysis can be used to determine such things as simple payback, rate of return, and cost of light, the results may neglect a number of important economic considerations, such as the time value of money, additional savings and expenses and their relative timing, and future energy price escalations. Hence a first-level analysis does not typically provide the end user with sufficient details to make a fully informed decision. For this reason, the Illuminating Engineering Society (IES) recommends a full life cycle cost/benefit analysis (LCCBA).

111

WABASH RIVER IMPPCCT, INTEGRATED METHANOL AND POWER PRODUCTION FROM CLEAN COAL TECHNOLOGIES  

SciTech Connect

In a joint effort with the U.S. Department of Energy, working under a Cooperative Agreement Award from the ''Early Entrance Coproduction Plant'' (EECP) initiative, the Gasification Engineering Corporation and an Industrial Consortium are investigating the application of synthesis gas from the E-GAS{trademark} technology to a coproduction environment to enhance the efficiency and productivity of solid fuel gasification combined cycle power plants. The objectives of this effort are to determine the feasibility of an Early Entrance Coproduction Plant located at a specific site which produces some combination of electric power (or heat), fuels, and/or chemicals from synthesis gas derived from coal, or, coal in combination with some other carbonaceous feedstock. The project's intended result is to provide the necessary technical, financial, and environmental information that will be needed to move the EECP forward to detailed design, construction, and operation by industry. The Wabash River Integrated Methanol and Power Production from Clean Coal Technologies (IMPPCCT) project is evaluating integrated electrical power generation and methanol production through clean coal technologies. The project is conducted by a multi-industry team lead by Gasification Engineering Corporation (GEC), and supported by Air Products and Chemicals Inc., The Dow Chemical Company, Dow Corning Corporation, Methanex Corporation, and Siemens Westinghouse Power Corporation. Three project phases are planned for execution, including: (1) Feasibility Study and conceptual design for an integrated demonstration facility and for fence-line commercial plants operated at The Dow Chemical Company or Dow Corning Corporation chemical plant locations (i.e. the Commercial Embodiment Plant or CEP) (2) Research, development, and testing to address any technology gaps or critical design and integration issues (3) Engineering design and financing plan to install an integrated commercial demonstration facility at the existing Wabash River Energy Ltd., plant in West Terre Haute, Indiana. During the reporting period work was furthered to support the development of capital and operating cost estimates associated with the installation of liquid or gas phase methanol synthesis technology in a Commercial Embodiment Plant (CEP) utilizing the six cases previously defined. In addition, continued development of the plant economic model was accomplished by providing combined cycle performance data. Performance and emission estimates for gas turbine combined cycles was based on revised methanol purge gas information. The economic model was used to evaluate project returns with various market conditions and plant configurations and was refined to correct earlier flaws. Updated power price projections were obtained and incorporated in the model. Sensitivity studies show that break-even methanol prices which provide a 12% return are 47-54 cents/gallon for plant scenarios using $1.25/MM Btu coal, and about 40 cents/gallon for most of the scenarios with $0.50/MM Btu petroleum coke as the fuel source. One exception is a high power price and production case which could be economically attractive at 30 cents/gallon methanol. This case was explored in more detail, but includes power costs predicated on natural gas prices at the 95th percentile of expected price distributions. In this case, the breakeven methanol price is highly sensitive to the required project return rate, payback period, and plant on-line time. These sensitivities result mainly from the high capital investment required for the CEP facility ({approx}$500MM for a single train IGCC-methanol synthesis plant). Finally, during the reporting period the Defense Contractor Audit Agency successfully executed an accounting audit of Global Energy Inc. for data accumulated over the first year of the IMPPCCT project under the Cooperative Agreement.

Doug Strickland

2001-09-28T23:59:59.000Z

112

Optimal Timing for Assessment of Tumor Response to Neoadjuvant Chemoradiation in Patients With Rectal Cancer: Do All Patients Benefit From Waiting Longer Than 6 Weeks?  

SciTech Connect

Purpose: To estimate the metabolic activity of rectal cancers at 6 and 12 weeks after completion of chemoradiation therapy (CRT) by 2-[fluorine-18] fluoro-2-deoxy-D-glucose-labeled positron emission tomography/computed tomography ([{sup 18}FDG]PET/CT) imaging and correlate with response to CRT. Methods and Materials: Patients with cT2-4N0-2M0 distal rectal adenocarcinoma treated with long-course neoadjuvant CRT (54 Gy, 5-fluouracil-based) were prospectively studied ( (ClinicalTrials.org) identifier (NCT00254683)). All patients underwent 3 PET/CT studies (at baseline and 6 and 12 weeks from CRT completion). Clinical assessment was at 12 weeks. Maximal standard uptake value (SUVmax) of the primary tumor was measured and recorded at each PET/CT study after 1 h (early) and 3 h (late) from {sup 18}FDG injection. Patients with an increase in early SUVmax between 6 and 12 weeks were considered 'bad' responders and the others as 'good' responders. Results: Ninety-one patients were included; 46 patients (51%) were 'bad' responders, whereas 45 (49%) patients were 'good' responders. 'Bad' responders were less likely to develop complete clinical response (6.5% vs. 37.8%, respectively; P=.001), less likely to develop significant histological tumor regression (complete or near-complete pathological response; 16% vs. 45%, respectively; P=.008) and exhibited greater final tumor dimension (4.3 cm vs. 3.3 cm; P=.03). Decrease between early (1 h) and late (3 h) SUVmax at 6-week PET/CT was a significant predictor of 'good' response (accuracy of 67%). Conclusions: Patients who developed an increase in SUVmax after 6 weeks were less likely to develop significant tumor downstaging. Early-late SUVmax variation at 6-week PET/CT may help identify these patients and allow tailored selection of CRT-surgery intervals for individual patients.

Perez, Rodrigo O. [Department of Gastroenterology, Colorectal Surgery Division, University of Sao Paulo School of Medicine, Sao Paulo (Brazil) [Department of Gastroenterology, Colorectal Surgery Division, University of Sao Paulo School of Medicine, Sao Paulo (Brazil); Angelita and Joaquim Gama Institute, Sao Paulo (Brazil); Habr-Gama, Angelita, E-mail: gamange@uol.com.br [Angelita and Joaquim Gama Institute, Sao Paulo (Brazil)] [Angelita and Joaquim Gama Institute, Sao Paulo (Brazil); Sao Juliao, Guilherme P. [Department of Gastroenterology, Colorectal Surgery Division, University of Sao Paulo School of Medicine, Sao Paulo (Brazil)] [Department of Gastroenterology, Colorectal Surgery Division, University of Sao Paulo School of Medicine, Sao Paulo (Brazil); Gama-Rodrigues, Joaquim [Angelita and Joaquim Gama Institute, Sao Paulo (Brazil)] [Angelita and Joaquim Gama Institute, Sao Paulo (Brazil); Sousa, Afonso H.S.; Campos, Fabio Guilherme; Imperiale, Antonio R. [Department of Gastroenterology, Colorectal Surgery Division, University of Sao Paulo School of Medicine, Sao Paulo (Brazil)] [Department of Gastroenterology, Colorectal Surgery Division, University of Sao Paulo School of Medicine, Sao Paulo (Brazil); Lynn, Patricio B.; Proscurshim, Igor [Angelita and Joaquim Gama Institute, Sao Paulo (Brazil)] [Angelita and Joaquim Gama Institute, Sao Paulo (Brazil); Nahas, Sergio Carlos [Department of Gastroenterology, Colorectal Surgery Division, University of Sao Paulo School of Medicine, Sao Paulo (Brazil)] [Department of Gastroenterology, Colorectal Surgery Division, University of Sao Paulo School of Medicine, Sao Paulo (Brazil); Ono, Carla Rachel; Buchpiguel, Carlos Alberto [Department of Radiology, Nuclear Medicine Division, University of Sao Paulo School of Medicine, Sao Paulo (Brazil) [Department of Radiology, Nuclear Medicine Division, University of Sao Paulo School of Medicine, Sao Paulo (Brazil); Department of Radiology and Nuclear Medicine, Hospital do Coracao, Sao Paulo (Brazil)

2012-12-01T23:59:59.000Z

113

Sermon for Corporate Communion, Trinity Term 2014 And now I am no longer in the world, but they are in the world, and I am  

E-Print Network (OSTI)

that their energy and life have long since left them, often even if that relationship is quite seriously toxic best-selling book reflecting on his years of counselling, The Examined Life ­ tells the story of his

Capdeboscq, Yves

114

"This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible."  

E-Print Network (OSTI)

University. KEYWORDS: education, remote experimentation, e-learning, web-based laboratories, relays these needs is to develop web-based laboratories, on an Internet-platform from which real (vs. simulation

115

Mapping molecular flexibility of spin labeled proteins on the nanosecond and longer time scales via CW lineshape analysis and osmolyte-perturbation EPR  

E-Print Network (OSTI)

Unfolded proteins and protein folding studied by NMR. Chem.resonance as a probe for protein folding/unfolding of the C-and implications for protein folding. Nat. Struc. Biol. 5:

Lpez, Carlos Javier

2012-01-01T23:59:59.000Z

116

"This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible."  

E-Print Network (OSTI)

. Some electric utility companies realize the importance of the power qual- ity problem, and they invest- lems due to voltage sags. Computer, industrial con- trol systems, and adjustable speed drives are espe, McGranaghan, and Mehta [3] presented the effect of voltage sags on motors and drives. When a single

117

Bone scintigraphy (BS) may no longer be relevant in the era of integrated PET/CT for women undergoing evaluation for suspected metastatic breast cancer (MBC).  

Science Journals Connector (OSTI)

...women undergoing extent-of-disease (EOD) evaluation for suspected MBC. Methods: Women undergoing EOD evaluation for suspected MBC with integrated...CT in detecting osseous metastases when EOD evaluation for suspected MBC is considered...

HL McArthur; C Lynch; P Morris; S Larson; K Grabski; J Howard; S Patil; CA Hudis; MN Dickler

2009-02-19T23:59:59.000Z

118

Lrig1 Is an Estrogen-Regulated Growth Suppressor and Correlates with Longer Relapse-Free Survival in ER?-Positive Breast Cancer  

Science Journals Connector (OSTI)

...bind silenced chromatin and open it for business, enabling the recruitment of other transcription...Environmental Research, the U.S. Department of Energy under contract no. DE-AC02-05CH11231...O'Geen H , Nicolet CM, Blahnik K, Green R, Farnham PJ. Comparison of sample...

Sheryl R. Krig; Seth Frietze; Catalina Simion; Jamie K. Miller; Will H.D. Fry; Hanine Rafidi; Lakmal Kotelawala; Lihong Qi; Obi L. Griffith; Joe W. Gray; Kermit L. Carraway III; and Colleen Sweeney

2011-10-01T23:59:59.000Z

119

1. Are you aware of manure sampling and testing procedures? 2. Do you store livestock waste for longer than 90 days on your property?  

E-Print Network (OSTI)

Livestock Manure Storage and Treatment Facilities B.L. Harris, D.W. Hoffman and F.J. Mazac, Jr.* B-6030 ¥ Zerle L. Carpenter, Director ¥ The Texas A&M University System ¥ College Station, Texas TEX5A5Syst Rural and wastewater) should be stored in an environmentally sound manner until they can be applied to land

Mukhtar, Saqib

120

Mapping molecular flexibility of spin labeled proteins on the nanosecond and longer time scales via CW lineshape analysis and osmolyte-perturbation EPR  

E-Print Network (OSTI)

the nanometer range by pulse EPR. Chem. Phys. Chem. 3:927-Augusto, O. and Vaz, S.M 2007. EPR spin-trapping of proteinWeber, R.T. 2010. Quantitative EPR. Springer- Verlag/Wien.

Lpez, Carlos Javier

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

"This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible."  

E-Print Network (OSTI)

NseNpl = N switches will have an equivalent rat- ing of NseV, NplI . The term string as used here strings share current equally. Neither on-resistance nor off-resistance of the switch is modeled

122

Tripos Questions in Optimization IB (198598) Parts of some of these questions are no longer relevant to the syllabus. You should not be  

E-Print Network (OSTI)

; : : : ; S n g, and that the demands at the ports fD 1 ; : : : ; Dm g are given by d 1 ; : : : ; dm , where s 1 the rate of energy dissipation, given by I(f) = 1 2 X i;j2S a \\Gamma1 ij f 2 ij : Here S denotes the finite to m ports. Assume that there are quantities s 1 ; : : : ; s n of the goods at depots fS 1

Weber, Richard

123

Retained Ownership Strategies for Cattlemen.  

E-Print Network (OSTI)

for Selected Texas Markets. Table 2. Break-even prices for a 500-pound calf grazed to different endpoint weights at different costs, dollars per hundredweighf1 Costs of gain, S/ cwt. Pounds gained 35 40 45 50 55 Breakeven prices, S/ cwt. 100 68.33 69... of costs of gains and gain efficiency of cattle on break-even prices. The table assumes grazing or backgrounding a 500-pound stocker calfwith an "in" price of$75 per hundredweight. Costs of gain are given in units of$5 per hundredweight, beginning...

Davis, Ernest E; McGrann, James M.; Boleman Larry L.; Mies, William L.

1987-01-01T23:59:59.000Z

124

Regenerative air energy storage for remote winddiesel micro-grid communities  

Science Journals Connector (OSTI)

Abstract Remote communities beyond the reach of conventional electricity grids primarily rely on diesel generators (DG) to supply electricity. The systems in these communities are costly to operate because of the high price of transporting diesel to remote areas, and the low overall efficiencies caused by part-load operation of the DG. There is increasing interest to use wind energy converters (WEC) to supplement DG, thereby lowering the fuel consumption and operating costs. In order to use WEC to reduce the economic and environmental burden that DG have on remote communities, an energy storage system can be incorporated to buffer both generation and demand. This can avoid curtailment of the WEC, operate the DG at optimal efficiency, and reduce the necessary maximum installed generator capacities. Regenerative air energy storage (RAES) is a form of compressed air storage that is suitable for deployment in remote communities due to its ability to utilize waste heat from DG to boost the roundtrip efficiency of energy storage. This article presents a numerical model for a RAES system operating in a wind-diesel micro-grid. Simulations are run for varying WEC penetration levels and RAES energy capacities. The results show that in systems with WEC penetration less than 75%, increasing WEC capacity is more economic than adding a RAES system. Above penetration rates of 75%, the use of RAES achieves increased diesel savings with only slightly longer payback than simple wind-diesel systems. In the remote Canadian community case study, the optimal RAES system is 0.5MW and 1MWh with a WEC penetration rate of approximately 75%. A larger RAES results in further fuel savings, and thus environmental benefit, with only marginal increase in simple payback period.

Sebastian C. Manchester; Lukas G. Swan; Dominic Groulx

2014-01-01T23:59:59.000Z

125

Grid Parity for Residential Photovoltaics in the United States: Key Drivers and Sensitivities; Preprint  

SciTech Connect

In this report, we analyze PV break-even costs for U.S. residential customers. We evaluate some key drivers of grid parity both regionally and over time. We also examine the impact of moving from flat to time-of-use (TOU) rates, and we evaluate individual components of the break-even cost, including effect of rate structure and various incentives. Finally, we examine how PV markets might evolve on a regional basis considering the sensitivity of the break-even cost to four major drivers: technical performance, financing parameters, electricity prices and rates, and policies. We find that electricity price rather than technical parameters are in general the key drivers of the break-even cost of PV. Additionally, this analysis provides insight about the potential viability of PV markets.

Ong, S.; Denholm, P.; Clark, N.

2012-08-01T23:59:59.000Z

126

Evaluating the costs and benefits of increased funding for public transportation in Chicago  

E-Print Network (OSTI)

(cont.) off-peak ridership, is at or slightly below break-even with respect to net benefits if the CTA cost structure and tax source of subsidy remains unchanged. In order to justify any significant additional long-term ...

Schofield, Mark L., 1973-

2004-01-01T23:59:59.000Z

127

Managing the Steam Trap Population  

E-Print Network (OSTI)

hundred steam traps installed only 58 were working effectively -- 42% needed attention! These programs had associated cost benefits of at least 100% return on investment, a maximum six month breakeven on cash flow, and an energy cost reduction amounting...

Atlas, R. D.

1983-01-01T23:59:59.000Z

128

Potentials of GHG reductions from wastewater treatment for the CDM  

Science Journals Connector (OSTI)

The study aims to evaluate the potential of GHG (greenhouse gas) reductions by installing an ... break-even point of additional investment to reduce GHG is obtained by exchanging carbon price as ... that the meth...

Takaaki Furubayashi; Toshihiko Nakata

2011-07-01T23:59:59.000Z

129

The Spheromak  

Science Journals Connector (OSTI)

In view of the recent rapid progress of toroidal confinement devices towards a break-even plasma state, a serious question arises as to whether the present tokamak approach will indeed reach the final goal of a c...

M. Okabayashi

1982-01-01T23:59:59.000Z

130

Ir. Charles Mussche 8 Spruce St, New York  

E-Print Network (OSTI)

and Electricity Assessments, Biogas Plant Feasibility Assessments and Investment Payback, PV for the construction of a biogas plant resulting in a 74% reduction in electricity needs

131

Tennessee: U.S. Automaker Improves Plants Performance, Saves Costs  

Office of Energy Efficiency and Renewable Energy (EERE)

Nissan invested $331,000 to implement Superior Energy Performance (including internal staff time), resulting in a payback of just four months.

132

Tennessee: U.S. Automaker Improves Plant's Performance, Saves...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

by payback periods of one to three years, which is the general standard across the automobile industry. By carefully ranking and selecting potential measures and projects, Nissan...

133

Why You Might Want to Add More Insulation | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

the Payback Period of Additional Insulation Air Sealing Your Home Insulation and Air Sealing Products and Services There's more, too Unless your home was specifically...

134

Project Financing: From Identification to Implementation  

Energy.gov (U.S. Department of Energy (DOE))

This presentation discusses various means to measure the financial impact of energy efficiency projects from simple payback to annualized cost analysis.

135

Establishing the value of advanced glazings  

E-Print Network (OSTI)

electrochromic window would yield a simple payback of six years, based on recovery of annual operating costs alone, if its price

Lee, Eleanor S.; Selkowitz, Stephen E.

1999-01-01T23:59:59.000Z

136

Greenhouse Gas Return on Investment: A New Metric for Energy Technology  

E-Print Network (OSTI)

V. , Alsema, E. , 2006, Photovoltaic Energy Payback Times,options, 21 European Photovoltaic Solar Energy Conference.solar energy 500 times, the area of photovoltaic material,

Reich-Weiser, Corinne; Dornfeld, David; Horne, Steve

2008-01-01T23:59:59.000Z

137

Saccrifical Protective Coating Materials that can be Regenerated...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

in flux Complete flux recovery from dead end to cross flow mode Developed economic model for proposed process Payback period: 2 yrs * Build pilot scale...

138

Assessing the Costs and Benefits of the Superior Energy Performance...  

Energy Savers (EERE)

payback of SEP certification has been determined. Additionally, more qualitative factors with regard to the business value and challenges related to SEP and ISO 50001...

139

Clean Cities Launches Improved Tool to Help Fleets Evaluate CNG Investments  

Energy.gov (U.S. Department of Energy (DOE))

The popular VICE Model is newly updated to allow fleets greater flexibility in determining payback periods for natural gas vehicles and fueling infrastructure.

140

Water-LessInk  

NLE Websites -- All DOE Office Websites (Extended Search)

this option, even their "largest" project wouldn't reach this threshold Internal Process is administratively burdensome, unfunded, and can be difficult to track payback...

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Setting the Standard for Industrial Energy Efficiency  

E-Print Network (OSTI)

complete an in-depth energy audit and analysis to baselineof measures identified in the energy audit with a payback ofon energy management, energy audits and analysis, routines

McKane, Aimee; Williams, Robert; Perry, Wayne; Li, Tienan

2008-01-01T23:59:59.000Z

142

Wind Energy Finance (WEF): An Online Calculator for Economic...  

Wind Powering America (EERE)

notes describe each input and provide reasonable default values. Outputs * Minimum energy payment to meet financial criteria * Levelized cost of energy * Payback period * Net...

143

The Adoption of Residential Solar Photovoltaic Systems in the Presence of a Financial Incentive: A Case Study of Consumer Experiences with the Renewable Energy Standard Offer Program in Ontario (Canada).  

E-Print Network (OSTI)

??Traditionally, high initial capital costs and lengthy payback periods have been identified as the most significant barriers that limit the diffusion of solar photovoltaic (PV) (more)

Adachi, Christopher

2009-01-01T23:59:59.000Z

144

A business analysis of the party boat industry on the Texas Gulf coast  

E-Print Network (OSTI)

-lovl. Return on Investment (ROI) Summary. :7 12 20 27 27 IV ANALYSIS. Introduction Regional Differences Bay-Gulf Return on Investment Differences. Size of Operation, Role of' the Industry . Analysis of Costs. Break-even Analysis. Test...-lovl. Return on Investment (ROI) Summary. :7 12 20 27 27 IV ANALYSIS. Introduction Regional Differences Bay-Gulf Return on Investment Differences. Size of Operation, Role of' the Industry . Analysis of Costs. Break-even Analysis. Test...

Woods, Steven A

2012-06-07T23:59:59.000Z

145

Economic analysis of a technical hedging strategy for live cattle futures  

E-Print Network (OSTI)

Based on the Restricted Helmuth Technique Using the Revised Per Hundredweight Breakeven Selling Prices, 102 Placement Periods, July 1974 to December 1982. . . . . . . . 24 Average Per Head Return Above Feed and Feeder Cost:s and Average Per Head... Based on the Restricted Helmuth Technique Using the Revised Per Hundredweight Breakeven Selling Prices, 102 Placement Periods, July 1974 to December 1982. . . . . . . . 24 Average Per Head Return Above Feed and Feeder Cost:s and Average Per Head...

Pluhar, Darwin M

2012-06-07T23:59:59.000Z

146

Determining Pregnancy in Cattle  

E-Print Network (OSTI)

of the animal to allow the palpator to Table 2. Break-even prices at various levels of production and annual costs of production. Calf crop (%) Weaning weight (lb) Pounds of calf per cow ---------------- Annual costs per cow ---------------- $250 $275 $300... of the animal to allow the palpator to Table 2. Break-even prices at various levels of production and annual costs of production. Calf crop (%) Weaning weight (lb) Pounds of calf per cow ---------------- Annual costs per cow ---------------- $250 $275 $300...

Beverly, John R.; Sprott, L. R.; Carpenter, Bruce B.

2008-12-16T23:59:59.000Z

147

Technical and Economic Feasibility of Rabbiteye Blueberry Production East Texas.  

E-Print Network (OSTI)

of establishment and development costs, capital expenditures, breakeven quantity and potential net returns for a pick your-own and a fresh market operation. The rabbiteye blueberry, Vaccinium ashei, is native to the south and southeastern United States... of establishment and development costs, capital expenditures, breakeven quantity and potential net returns for a pick your-own and a fresh market operation. The rabbiteye blueberry, Vaccinium ashei, is native to the south and southeastern United States...

Powell, Gordon R.; Chambers, Richard S.; Litzenberg, Kerry K.; Handwerker, Tom

1984-01-01T23:59:59.000Z

148

ECONOMIC FEASIBILITY OF DOMESTIC GROUNDFISH HARVEST FROM WESTERN ALASKA WATERS: A COMPARISON OF VESSEL TYPES,  

E-Print Network (OSTI)

to changes in fuel price. A $0.026/1 ($0.10/gallon) increase in fuel price increased the break-even ex currentiy offered by two joint venture firms and a fuel price of $0.277/1 ($1.05/gallon), break-even catch% less and fuel efficiency was 28% higher for the smaller of the two vessels. Costs for either vessel

149

THE LUMINA PROJECT http://light.lbl.gov  

E-Print Network (OSTI)

://light.lbl.gov/technology-assessment.html Technical Report #9 Embodied Energy and Off-Grid Lighting Peter Alstone* , Evan Mills , and Arne Jacobson-grid solar and large-scale wind energy. We also found that the energy embodied in the manufacture with rechargeable LED lighting technologies (Mills 2005). #12;3 Energy Payback Period The energy payback period

Jacobson, Arne

150

Economic review of the geopressured-geothermal resource with recommendations  

SciTech Connect

This report presents the results of an economic study conducted by the INEL under DOE Contract No. AC07-76ID01570 to evaluate the breakeven price to market energy from a geopressured-geothermal resource. A breakeven price is a minimum, per unit charge required for the developer to recover all direct and indirect costs and a rate of return sufficient to compensate the developer for depreciation, the time value of money, and the risk of failure. The DOE Geopressured-Geothermal Research Program and the DOE well testing and operations at three locations in the Gulf Coast region provide the bulk of resource and economic characteristics for this study. A menu-driven model was developed in LOTUS-123 to calculate the breakeven price to market gas and electricity from a geopressured-geothermal resource. This model was developed using the present value methodology and conservative assumptions. Assuming present well constraints and current off-the-shelf conversion technology, the breakeven price for electricity is about $0.26/kWh using only the thermal energy from a Hulin-type resource. Assuming identical resource and technology constraints, the breakeven price is reduced to about $0.15/kWh when using all available energy forms (methane, hydraulic, and thermal). Assuming the use of available advanced technologies, the breakeven price is reduced to about $0.10/kWh. Assuming the higher quality resource (with higher temperature and gas content) in the South Texas cases, the breakeven cost is about $0.095/kWh. Using advanced technology, this cost is further reduced to about $0.05/kWh. Both costs are within program goals. The results of this study suggest that the future direction of the Geopressured-Geothermal Program emphasize (a) selection of higher quality resource, (b) advanced energy conversion technology, and (c) total energy utilization.

Plum, M.M.; Negus-de Wys, J.; Faulder, D.D.; Lunis, B.C.

1989-11-01T23:59:59.000Z

151

SPECIFIC AIMS: The Maxwell M. Wintrobe Research Building has served as a central research building for the University of Utah School of Medicine for nearly 30 years. However, the current facilities no longer meet  

E-Print Network (OSTI)

of Neurobiology & Anatomy. Aim 2 - To design and create a sustainable research environment that is energy the University of Utah's goals for sustainable design and energy efficiency. The second step is to fully remodelSPECIFIC AIMS: The Maxwell M. Wintrobe Research Building has served as a central research building

Marc, Robert E.

152

Procedures for Students with a Probation Lock Hold for FALL 2012 The Registrar's Office previously notified you regarding continuous probation informing you that you're no longer eligible to enroll classes through regular university.  

E-Print Network (OSTI)

Procedures for Students with a Probation Lock Hold for FALL 2012 The Registrar's Office previously through regular university. Please follow the checklist below to guide you through the procedures that you and need to follow the procedures below: Improve both my SFSU and Overall GPAs to the minimum 2

153

Procedures for Students with a Probation Lock Hold for Spring 2014 The Registrar's Office previously notified you regarding continuous probation informing you that you're no longer eligible to enroll classes through regular university.  

E-Print Network (OSTI)

Procedures for Students with a Probation Lock Hold for Spring 2014 The Registrar's Office classes through regular university. Please follow the checklist below to guide you through the procedures and need to follow the procedures below: Improve both my SFSU and Overall GPAs to the minimum 2

154

Procedures for Students with a Probation Lock Hold for SPRING 2013 The Registrar's Office previously notified you regarding continuous probation informing you that you're no longer eligible to enroll classes through regular university.  

E-Print Network (OSTI)

Procedures for Students with a Probation Lock Hold for SPRING 2013 The Registrar's Office classes through regular university. Please follow the checklist below to guide you through the procedures and need to follow the procedures below: Improve both my SFSU and Overall GPAs to the minimum 2

155

Procedures for Students with a Probation Lock Hold for Fall 2013 The Registrar's Office previously notified you regarding continuous probation informing you that you're no longer eligible to enroll classes through regular university.  

E-Print Network (OSTI)

Procedures for Students with a Probation Lock Hold for Fall 2013 The Registrar's Office previously through regular university. Please follow the checklist below to guide you through the procedures that you and need to follow the procedures below: Improve both my SFSU and Overall GPAs to the minimum 2

156

Procedures for Students with a Probation Lock Hold for Fall 2014 The Registrar's Office previously notified you regarding continuous probation informing you that you're no longer eligible to enroll classes through regular university.  

E-Print Network (OSTI)

Procedures for Students with a Probation Lock Hold for Fall 2014 The Registrar's Office previously through regular university. Please follow the checklist below to guide you through the procedures that you and need to follow the procedures below: Improve both my SFSU and Overall GPAs to the minimum 2

157

FRONTISPIECE. Three-striped Warblers (Basileuterus tristriatus) were studied in the northern Andes of Venezuela. Temperate and tropical parulids differ strongly in life histories. Three-striped Warblers have smaller clutches, longer  

E-Print Network (OSTI)

of Venezuela. Temperate and tropical parulids differ strongly in life histories. Three-striped Warblers have(4):667­678, 2009 BREEDING BIOLOGY OF THE THREE-STRIPED WARBLER IN VENEZUELA: A CONTRAST BETWEEN TROPICAL traits of the Three-striped Warbler (Basileuterus tristriatus) from 146 nests in Venezuela and compare

Martin, Thomas E.

158

Batteries - EnerDel Lithium-Ion Battery  

NLE Websites -- All DOE Office Websites (Extended Search)

EnerDel/Argonne Advanced High-Power Battery for Hybrid Electric Vehicles EnerDel/Argonne Advanced High-Power Battery for Hybrid Electric Vehicles EnerDel lithium-ion battery The EnerDel Lithium-Ion Battery The EnerDel/Argonne lithium-ion battery is a highly reliable and extremely safe device that is lighter in weight, more compact, more powerful and longer-lasting than the nickel-metal hydride (Ni-MH) batteries in today's hybrid electric vehicles (HEVs). The battery is expected to meet the U.S. Advanced Battery Consortium's $500 manufacturing price criterion for a 25-kilowatt battery, which is almost a sixth of the cost to make comparable Ni-MH batteries intended for use in HEVs. It is also less expensive to make than comparable Li-ion batteries. That cost reduction is expected to help make HEVs more competitive in the marketplace and enable consumers to receive an immediate payback in

159

A Retrofit Tool for Improving Energy Efficiency of Commercial Buildings  

SciTech Connect

Existing buildings will dominate energy use in commercial buildings in the United States for three decades or longer and even in China for the about two decades. Retrofitting these buildings to improve energy efficiency and reduce energy use is thus critical to achieving the target of reducing energy use in the buildings sector. However there are few evaluation tools that can quickly identify and evaluate energy savings and cost effectiveness of energy conservation measures (ECMs) for retrofits, especially for buildings in China. This paper discusses methods used to develop such a tool and demonstrates an application of the tool for a retrofit analysis. The tool builds on a building performance database with pre-calculated energy consumption of ECMs for selected commercial prototype buildings using the EnergyPlus program. The tool allows users to evaluate individual ECMs or a package of ECMs. It covers building envelope, lighting and daylighting, HVAC, plug loads, service hot water, and renewable energy. The prototype building can be customized to represent an actual building with some limitations. Energy consumption from utility bills can be entered into the tool to compare and calibrate the energy use of the prototype building. The tool currently can evaluate energy savings and payback of ECMs for shopping malls in China. We have used the tool to assess energy and cost savings for retrofit of the prototype shopping mall in Shanghai. Future work on the tool will simplify its use and expand it to cover other commercial building types and other countries.

Levine, Mark; Feng, Wei; Ke, Jing; Hong, Tianzhen; Zhou, Nan

2013-06-06T23:59:59.000Z

160

Business Case for a Micro-Combined Heat and Power Fuel Cell System in Commercial Applications  

SciTech Connect

Combined heat and power fuel cell systems (CHP-FCSs) provide consistent electrical power and hot water with greater efficiency and lower emissions than alternative sources. These systems can be used either as baseload, grid-connected, or as off-the-grid power sources. This report presents a business case for CHP-FCSs in the range of 5 to 50 kWe. Systems in this power range are considered micro-CHP-FCS. For this particular business case, commercial applications rather than residential or industrial are targeted. To understand the benefits of implementing a micro-CHP-FCS, the characteristics that determine their competitive advantage must first be identified. Locations with high electricity prices and low natural gas prices are ideal locations for micro-CHP-FCSs. Fortunately, these high spark spread locations are generally in the northeastern area of the United States and California where government incentives are already in place to offset the current high cost of the micro-CHP-FCSs. As a result of the inherently high efficiency of a fuel cell and their ability to use the waste heat that is generated as a CHP, they have higher efficiency. This results in lower fuel costs than comparable alternative small-scale power systems (e.g., microturbines and reciprocating engines). A variety of markets should consider micro-CHP-FCSs including those that require both heat and baseload electricity throughout the year. In addition, the reliable power of micro-CHP-FCSs could be beneficial to markets where electrical outages are especially frequent or costly. Greenhouse gas emission levels from micro-CHP-FCSs are 69 percent lower, and the human health costs are 99.9 percent lower, than those attributed to conventional coal-fired power plants. As a result, FCSs can allow a company to advertise as environmentally conscious and provide a bottom-line sales advantage. As a new technology in the early stages of adoption, micro-CHP-FCSs are currently more expensive than alternative technologies. As the technology gains a foothold in its target markets and demand increases, the costs will decline in response to improved manufacturing efficiencies, similar to trends seen with other technologies. Transparency Market Research forecasts suggest that the CHP-FCS market will grow at a compound annual growth rate of greater than 27 percent over the next 5 years. These production level increases, coupled with the expected low price of natural gas, indicate the economic payback period will move to less than 5 years over the course of the next 5 years. To better understand the benefits of micro-CHP-FCSs, The U.S. Department of Energy worked with ClearEdge Power to install fifteen 5-kWe fuel cells in the commercial markets of California and Oregon. Pacific Northwest National Laboratory is evaluating these systems in terms of economics, operations, and their environmental impact in real-world applications. As expected, the economic analysis has indicated that the high capital cost of the micro-CHP-FCSs results in a longer payback period than typically is acceptable for all but early-adopter market segments. However, a payback period of less than 3 years may be expected as increased production brings system cost down, and CHP incentives are maintained or improved.

Brooks, Kriston P.; Makhmalbaf, Atefe; Anderson, David M.; Amaya, Jodi P.; Pilli, Siva Prasad; Srivastava, Viraj; Upton, Jaki F.

2013-10-30T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Multi objective optimization of solid oxide fuel cell stacks considering parameter effects: Fuel utilization and hydrogen cost  

Science Journals Connector (OSTI)

In the context of stationary power generation fuel cell based systems are being predicted as a valuable option to tabernacle the thermodynamic cycle based power plants. In this paper multi objective optimization approach is used to optimize the planer solid oxide fuel cell (SOFC) stacks performance using genetic algorithm technique. Multi objective optimization generates the most attractive operating conditions of a SOFC system. This allows performing the optimization of the system regarding to two different objectives. Two pairs of different objectives are considered in this paper as distinguished strategies. In the first strategy minimization of the breakeven per-unit energy cost ($/kWh) and maximization of the output power is considered. Similarly two other objectives are also considered in the second strategy as minimization of the breakeven per-unit energy cost ($/kWh) and maximization of the electrical efficiency. Optimization of the first strategy predicts a maximum power output of 108.33?kW at a breakeven per-unit energy cost of 0.51 $/kWh and minimum breakeven per-unit energy cost of 0.30 $/kWh at a power of 42.18?kW. In the second strategy maximum efficiency of 63.93% at a breakeven per-unit energy cost of 0.42$/kWh is predicted while minimum breakeven per-unit energy cost of 0.25 $/kWh at efficiency of 48.3% is obtained. At the end evaluation of parameter effects on multi objective optimization regarding different hydrogen costs and fuel utilization factors are presented. It is worthy to note that the sensitivity analysis for multi objective optimization can be considered both as an advanced analysis tool and as support to technology managers engineers and decision makers when working by such as systems.

Atefeh Behzadi Forough; Ramin Roshandel

2013-01-01T23:59:59.000Z

162

Power beaming providing a space power infrastructure  

SciTech Connect

This study, based on two levels of technology, applies the power beaming concept to four planned satellite constellations. The analysis shows that with currently available technology, power beaming can provide mass savings to constellations in orbits ranging from low earth orbit to geosynchronous orbit. Two constellations, space surveillance and tracking system and space based radar, can be supported with current technology. The other two constellations, space-based laser array and boost surveillance and tracking system, will require power and transmission system improvements before their breakeven specific mass is achieved. A doubling of SP-100 conversion efficiency from 10 to 20/% would meet or exceed breakeven for these constellations.

Bamberger, J.A.; Coomes, E.P.

1992-08-01T23:59:59.000Z

163

An internship in postharvest handling of vegetables and fruits at Valley Onions, McAllen, Texas: and an analysis of the postharvest handling system of onions  

E-Print Network (OSTI)

which was originally devised by Oklahoma State University (2) and modified by Texas A&M Extention Agricultural Economist (3), was used to determine cost, break-even prices, and revenues of the different systems, in order to compare the utilization... month (if facilities were available) would increase the break-even price by 8-10K (budget I-5). Room temperature storage in bags for one month would increase costs by 25-302 oz more because onions had to be regraded due to rot, which resulted...

Sanchez-Ramos, Jose Ignacio

2012-06-07T23:59:59.000Z

164

Retained Ownership Strategies for Cattlemen  

E-Print Network (OSTI)

, some roll-back in prices of feeder cattle can be endured without suffering a loss. Table 1 illustrates the effects of cost of gain and total pounds of gain on cattle break-even prices. The table assumes you are grazing or backgrounding a 500-pound... of $40 per hundredweight, the break-even price at the program?s end would be $70.29 per hun- dredweight, including interest charges on the calf and other feeding costs. As one would expect, the price per hundredweight required to break even is below...

Davis, Ernest E.; Mintert, James R.; McGrann, James M.

1999-06-23T23:59:59.000Z

165

Economic Decision Criteria for Fleahopper and Bollworm Management in Cotton: Texas Coastal Bend.  

E-Print Network (OSTI)

insect pests, the effect of control decisions on beneficial insects, or the potential costs involved if insect pests develop resistance to insecticide. Key words: Economic decision model, fleahopper, bollworm, yield decline, economic loss, breakeven... the breakeven point for treatment of CAMO-E to be $2.87 I acre. This is the point where the' cost of yield losses from insect damage equals the cost of control, when the price of lint was set at $0.65/Ib (Table 4 and Figure 2). For a lint price of $0.50/Ib...

Masud, Sharif M.; Benedict, John H.; Lacewell, Ronald D.

1990-01-01T23:59:59.000Z

166

Peanut Profits and Irrigation Yield Response in the Northern Texas High Plains, A Non-Traditional Production Area.  

E-Print Network (OSTI)

compared with $673/ ac for Pronto using 1989 USDA support prices. Considering all costs except a charge for manage ment, the breakeven price was $311/ ton for Pronto and $277 / ton for McRan. Thus, nonquota market prices would need to be substantially... compared with $673/ ac for Pronto using 1989 USDA support prices. Considering all costs except a charge for manage ment, the breakeven price was $311/ ton for Pronto and $277 / ton for McRan. Thus, nonquota market prices would need to be substantially...

Harman, Wyatte L.; Regier, C.; Petr, F.; Lansford, V.D.

1990-01-01T23:59:59.000Z

167

An analysis of the consistency and quality of extension decision aids and the effects of yield and price uncertainty on decision aid results  

E-Print Network (OSTI)

FOR THE EXAMPLE FARM BASED ON ALTERNATIVE TAX RATE AND REPLACEMENT COST ASSUMPTIONS 16 TABLE 3. EXAMPLE FARM DATA FOR CRP ANALYSIS 28 TABLE 4. BREAKEVEN BIDS FOR THE EXAMPLE SITUATION BASED ON ALTERNATIVE DISCOUNT RATES. INFLATION RATES AND OWNERSHIP COST... examines the response of the breakeven bids to a 25% increase in asset replacement cost. The marginal tax rate is set at zero percent to isolate the effects of a change in asset values. Four of the eight worksheets accommodated differences in asset...

Kubiak, Kathryn Aileen

2012-06-07T23:59:59.000Z

168

Designing for Spontaneous and Secure Delegation in Digital Payments  

Science Journals Connector (OSTI)

......decreased mobility, and who were unfamiliar with the Internet. Money changed hands on the basis of a payback...members are often the perpetrators of financial abuse (Action for Elder Abuse, 2006), which means those who intuitively we......

Paul Dunphy; Andrew Monk; John Vines; Mark Blythe; Patrick Olivier

2014-09-01T23:59:59.000Z

169

Better Buildings Alliance, Advanced Rooftop Unit Campaign: Rooftop Unit Measurement and Verification (Fact Sheet)  

SciTech Connect

This document provides facility managers and building owners an introduction to measurement and verification (M&V) methods to estimate energy and cost savings of rooftop units replacement or retrofit projects to estimate paybacks or to justify future projects.

Not Available

2014-09-01T23:59:59.000Z

170

Condensing Heat Exchangers Optimize Steam Boilers  

E-Print Network (OSTI)

The development of fluorocarbon resin covered tubes has advanced to the point where full scale marketing in connection with condensing heat exchangers has begun. Field installations show simple paybacks of one to one and a half years with resulting...

Sullivan, B.; Sullivan, P. A.

1983-01-01T23:59:59.000Z

171

Post Production Heavy Oil Operations: A Case for Partial Upgrading  

E-Print Network (OSTI)

; these savings not only offset operational costs but provide short payback periods on capital expenditures. Additionally, the lower gravity blend resulting from visbreaking can also bring about energy and cost savings in pipeline transportation and positively...

Lokhandwala, Taher

2012-12-05T23:59:59.000Z

172

Rank Project Name Directorate,  

E-Print Network (OSTI)

Rank Project Name Directorate, Dept/Div and POC Cost Savings Payback (Years) Waste Reduction 1 NATIONAL LABORATORY FY02 Funded Pollution Prevention Projects 0.4 Years (~5 months) #12;

173

Optimal Planning and Operation of Smart Grids with Electric Vehicle Interconnection  

E-Print Network (OSTI)

efficiency requirements - Maximum emission limits Investment constraints: - Payback period is constrained Storage constraints: - Electricity stored is limited by batterybattery minimum state of charge, dimensionless EV battery charging efficiency, dimensionless EV battery discharging efficiency, dimensionless electricity storage

Stadler, Michael

2012-01-01T23:59:59.000Z

174

Decision-Making to Reduce Manufacturing Greenhouse Gas Emissions  

E-Print Network (OSTI)

of solar-thermal electricity generation, Solar Energy, vol.Energy payback time - a key number for the assessment of thermal solarenergy technology LCA results. Technology EPT (years) Si CdTe Concentrator PV Solar Thermal

Reich-Weiser, Corinne

2010-01-01T23:59:59.000Z

175

--No Title--  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

As a result of the energy audit, the following work will be performed; Replace 10 HVAC roof top units at city hall (payback estimated at 6.93 years)- preparation of a bid...

176

Integration of Continuous Commissioning as a Measure in LoanSTAR and Energy Services Contracts  

E-Print Network (OSTI)

. The process typically achieves 15% whole building energy cost reduction with simple paybacks of less than two years. It has been used in over 450 federal, institutional, university, and commercial buildings and central plants with measured savings of over $100...

Wei, G.; Zhou, J.; Turner, D.; Lilley, D.

177

A Methodology to Measure Retrofit Energy Savings in Commercial Buildings  

E-Print Network (OSTI)

Measured energy savings promote and sustain energy conservation retrofits by verifying the success of retrofits, determining pay-back schedules, guiding the selection of future retrofits and identifying opportunities for further savings...

Kissock, John Kelly

2008-01-16T23:59:59.000Z

178

Federal Energy and Water Management Awards 2014  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

sodium lighting fixtures to T-5HO fluorescent lights. The installation of 580 light-emitting diode taxiway lights will result in a one-year payback and significant maintenance...

179

How Fuel Price Elasticity Affects the Economics of Thermal Retrofits  

Science Journals Connector (OSTI)

Policymakers, their expert advisors and the academic community use mathematical models to evaluate the economic viability and payback time of thermal retrofits. Most of these models have the form of a cost-benefi...

Ray Galvin

2013-01-01T23:59:59.000Z

180

VICE 2.0 Helps Fleets Evaluate CNG Investments (Fact Sheet),...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

VICE 2.0 Helps Fleets Evaluate CNG Investments CNG Find VICE 2.0 on the AFDC: afdc.energy.gov VICE 2.0 allows you to chart key investment indicators, such as payback period,...

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

A Review of Energy Use and Energy Efficiency Technologies for the Textile Industry  

E-Print Network (OSTI)

provided, but the energy and cost were given, the paybacknot given while the energy and cost are given, the paybacknot given while the energy and cost are given, the payback

Hasanbeigi, Ali

2014-01-01T23:59:59.000Z

182

A Louisiana Refinery Success Story  

E-Print Network (OSTI)

manager, operations manager and production manager. From 2004 through 2006, the team presented a series of ESG seminars at the refinery site. The numerous models demonstrated quantitative savings with 3- to 12-mo paybacks. For a complete SSI turnkey...

Kacsur, D.

183

Engineering, Financial and Net Energy Performance, and Risk Analysis for Parabolic Trough Solar Power Plants  

E-Print Network (OSTI)

concentrating solar power plant. A set of engineering performance, financial and net energy models were developed as tools to predict a plants engineering performance, cost and energy payback. The models were validated by comparing the predicted results...

Luo, Jun

2014-08-08T23:59:59.000Z

184

Cost-Effecitive Energy Efficiency Measure for Above 2003 and 2009 IECC Code-Compliant Residential and Commercial Buildings in the City of Arlington  

E-Print Network (OSTI)

payback calculations. Figure 1 through Figure 4 present a description of the individual measures and combinations of these measures which achieve 15% savings above the 2003 and 2009 IECC code-compliant house. Annual energy savings, estimated costs..., simple payback, and NOx, SO2, and CO2 emissions reduction are provided. CoA Residential Project, p.iii July 2011 Energy Systems Laboratory, Texas A&M University Figure 1. Individual and Combined Energy Efficiency Measures for 2003 IECC Code-Compliant...

Kim, H.; Do, S.; Baltazar, J.C.; Haberl, J.; Lewis, C.

185

Taking Another Look at Pumping Systems: Opportunities Go Well Beyond Just Energy Savings  

E-Print Network (OSTI)

payback periods. Basing decisions, however, on total cost of ownership and established life-cycle cost methodologies provides compelling arguments to shift business decision-making away from initial cost considerations. Pumping systems account... payback periods. Basing decisions, however, on total cost of ownership and established life-cycle cost methodologies provides compelling arguments to shift business decision-making away from initial cost considerations. Pumping systems account...

Tutterow, V.; Walters, T.

2006-01-01T23:59:59.000Z

186

White Paper on Magnetic Fusion Energy Priorities by Paul M. Bellan, Professor of Applied Physics, Caltech  

E-Print Network (OSTI)

White Paper on Magnetic Fusion Energy Priorities by Paul M. Bellan, Professor of Applied Physics, Caltech It is important to make ITER work (surpass fusion breakeven) and it is equally important for ITER there will be problems with plasmawall interactions or materials. There are many possible types of problems or there may

187

Scaling of interceptors for theater defense  

SciTech Connect

For nominal GBI and SBI cost parameters GNIs are preferred for missile ranges under {approx} 1.000 km; for multiple theaters breakeven ranges decreases to {approx} 500 km. Penalties for using GBIs rather than SBIs for long-range missiles are {approx} factor of 2; penalties for using SBIs for short-range missiles an be larger.

Canavan, G.H.

1993-11-01T23:59:59.000Z

188

US tokamak starts up  

Science Journals Connector (OSTI)

... 's Plasma Physics Laboratory have successfully started up the first of a new generation of tokamak fusion devices. The $314 million ... fusion devices. The $314 million Tokamak Fusion Test Reactor (TFTR) is expected to attain scientific break-even - the point ...

Stephen Budiansky

1983-01-13T23:59:59.000Z

189

Households are also directly Along with the direct  

E-Print Network (OSTI)

is nationally widespread and there are historical shortages of all crops, grain prices are at record or near the historical yield times the pre-drought corn price. For Iowa farmers to break-even given the pre-drought yield record levels. High grain prices will offset portions of the losses for many producers. A demonstration

Chen, Tsing-Chang "Mike"

190

Life-Cycle Assessment in Pesticide Product Development:? Methods and Case Study on Two Plant-Growth Regulators from Different Product Generations  

Science Journals Connector (OSTI)

Life-cycle assessment (LCA) enables a more comprehensive evaluation by additionally assessing the impacts of pesticide production and application (e.g. ... Also, the break-even point depends strongly on the yield increase data determined in field trials, which are specific to the use of growth regulators in intensive agriculture. ...

Georg Geisler; Stefanie Hellweg; Thomas B. Hofstetter; Konrad Hungerbuehler

2005-03-04T23:59:59.000Z

191

Forecasting Fuel Prices. http://www.nwcouncil.org/library/2008/2008-13.htm  

E-Print Network (OSTI)

. Becuase technology advances and public policy such as tax policy, not to mention energy legislation, like and ship then your breakeven is around $0.50 per MCF, shipped to the LNG ports in Mexico and Canada. #12;The real question is can wind, solar, geothermal, biomass be able to displace fossil fuels

192

Design and Optimization of Hybrid Separation Processes for the Dehydration of 2-Propanol and Other Organics  

Science Journals Connector (OSTI)

Design and Optimization of Hybrid Separation Processes for the Dehydration of 2-Propanol and Other Organics ... The stand-alone process C becomes more attractive the lower the initial water content is, or when no infrastructure for distillation is available on the production site. ... (21)?Pressly, T. G.; Ng, K. M. A break-even analysis of distillation-membrane hybrids. ...

Stefan Sommer; Thomas Melin

2004-07-10T23:59:59.000Z

193

Continuous Commissioning  

E-Print Network (OSTI)

Continuous Commissioning? for Existing Buildings D. E. Claridge, P.E., Ph.D., FASHRAE Professor, Department of Mechanical Engineering Director, Energy Systems Laboratory Continuous Commissioning? and CC? are registered trademarks of the Texas... Commissioning Building Has ? Satisfied Occupants ? Comfortable Conditions ? Operational Issues Resolved ? Operating Staff Trained ? Reduced Operating Cost ? Saving from 10% to 20%+ over baseline total cost ? ROI of 40%+ ? Breakeven investment...

Culp, C.; Claridge, D. E.

2011-01-01T23:59:59.000Z

194

MagnetoInertial Fusion Description  

E-Print Network (OSTI)

2009). The key point here is that breakeven-class MIF driver facilities, which already exist (e.g., ATLAS or Z/Z-Beamlet), cost US$200M compared to the multi-US$B ITER and NIF. For this reason alone, MIF introduced seed magnetic fields into the center of targets at the OMEGA laser facility, and compressed those

195

Technology for large tandem mirror experiments  

SciTech Connect

Construction of a large tandem mirror (MFTF-B) will soon begin at Lawrence Livermore National Laboratory (LLNL). Designed to reach break-even plasma conditions, the facility will significantly advance the physics and technology of magnetic-mirror-based fusion reactors. This paper describes the objectives and the design of the facility.

Thomassen, K.I.

1980-09-04T23:59:59.000Z

196

Japan's tokamak success boosts its bid for reactor  

Science Journals Connector (OSTI)

... Tokyo. Japan's upgraded tokamak fusion reactor, JT-60U, has achieved a long sought-after goal ... conditions 'equivalent' to breakeven, where energy output equals energy input. This will strengthen Japan's bid to host the International Thermonuclear Experimental Reactor (ITER), if the machine, ...

David Swinbanks

1996-11-14T23:59:59.000Z

197

Potential residential PV development in Chile: The effect of Net Metering and Net Billing schemes for grid-connected PV systems  

Science Journals Connector (OSTI)

Abstract In recent years the global photovoltaic (PV) market has expanded rapidly due to a sharp decline in PV prices and increased attention to the importance of sustainable energy. Northern Chile has one of the highest irradiance levels in the world as well as one the highest electricity rates in Latin America. Because of these conditions, Chile is one of very few countries where several PV projects are being developed without government subsidies and consequently, the PV industry is experiencing rapid growth. This paper reviews the opportunity to take advantage of these market conditions within the residential sector, modeling PV arrays across 10 cities in Chile. A detailed modeling of PV systems is performed to achieve an accurate analysis of energy production and electricity cost, using local resource data, optimal array orientation and inclination, and production losses. A review of how Net Metering and Net Billing affect the value of the PV production is applied and a comparison using levelized cost of electricity (LCOE) is conducted. Net Metering is found to be a better policy choice to promote PV systems than Net Billing because energy injected into the electrical network is paid at the complete retail rate. However, in developed countries this kind of policy is unlikely to be supported because of it?s economic unfeasibility. Under a Net Billing scheme a consumer will see an advantage when energy is recorded over longer time intervals and when installing a system with smaller capacity relative to household electricity consumption. This prevents excess generation from being injected into the network which would be bought by the utility at lower prices than the retail rate. Payback periods are found to be low, between 6 years in northern areas with high retail rates and 13 years in other areas with lower radiation and retail rates.

David Watts; Marcelo F. Valds; Danilo Jara; Andrea Watson

2015-01-01T23:59:59.000Z

198

Embodied Energy and Off-Grid Lighting  

SciTech Connect

The greenhouse gas (GHG) emissions from fuel-based lighting are substantial given the paltry levels of lighting service provided to users, leading to a great opportunity for GHG mitigation byencouraging the switch from fuel-based to rechargeable LED lighting. However, as with most new energy technology, switching to efficient lighting requires an up-front investment of energy(and GHGs) embedded in the manufacture of replacement components. We studied a population of off-grid lighting users in 2008-2009 in Kenya who were given the opportunity to adopt LEDlighting. Based on their use patterns with the LED lights and the levels of kerosene offset we observed, we found that the embodied energy of the LED lamp was"paid for" in only one month for grid charged products and two months for solar charged products. Furthermore, the energyreturn-on investment-ratio (energy produced or offset over the product's service life divided by energy embedded) for off-grid LED lighting ranges from 12 to 24, which is on par with on-gridsolar and large-scale wind energy. We also found that the energy embodied in the manufacture of a typical hurricane lantern is about one-half to one-sixth of that embodied in the particular LEDlights that we evaluated, indicating that the energy payback time would be moderately faster if LEDs ultimately displace the production of kerosene lanterns. As LED products improve, weanticipate longer service lives and more successful displacement of kerosene lighting, both of which will speed the already rapid recovery of embodied energy in these products. Our studyprovides a detailed appendix with embodied energy values for a variety of components used to construct off-grid LED lighting, which can be used to analyze other products.

Alstone, Peter; Mills, Evan; Jacobson, Arne

2011-01-25T23:59:59.000Z

199

LED traffic lights: New technology signals major energy savings  

SciTech Connect

Using light-emitting diode technology to replace incandescent lamps in traffic signals promises energy savings upwards of 60 percent for each of the estimated quarter of a million controlled intersections in the United States. LED units use only 9 to 25 watts instead of the 67 to 150 watts used by each incandescent lamp. Though their first cost is relatively high, energy savings result in paybacks of 1 to 5 years. LED retrofit kits are available for red signal disks and arrows, and installations in several states have proven successful, although minor improvements are addressing concerns about varying light output and controller circuitry. Retrofitting green lamps is not yet feasible, because color standards of the Institute of Traffic Engineers cannot be met with existing LED technology. Yellow lamps have such low duty factors (they`re on only 3 percent of the time) that retrofitting with LED signals is not cost-effective. LEDs last much longer than incandescents, allowing municipalities to not only reduce their electricity bills, but to save on maintenance costs as well. As further incentive, some utilities are beginning to implement rebate programs for LED traffic signal retrofits. Full approval of LED units is still awaited from the Institute of Traffic Engineers (ITE), the standard-setting body for traffic safety devices. Local and state governments ultimately decide what specifications to require for traffic lights, and the growing body of successful field experience with LEDs appears to be raising their comfort level with the technology. The California Department of Transportation is developing an LED traffic light specification, and two California utilities, Southern California Edison and Pacific Gas and Electric, have provided rebates for some pilot installations.

Houghton, D.

1994-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


202

SoCalGas - Non-Residential On-Bill Financing Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

On-Bill Financing Program On-Bill Financing Program SoCalGas - Non-Residential On-Bill Financing Program < Back Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Multi-Family Residential Nonprofit Schools State Government Tribal Government Savings Category Other Program Info State California Program Type Utility Loan Program Rebate Amount General Minimum Loan Amount: $5,000/meter minimum Non-Institutional Customers: up to $100,000/meter with 5 year max payback Taxpayer Funded Institutions: up to $250,000/meter with 10 year max payback State of California: up to $1,000,000 with 10 year max payback Provider Southern California Gas Company The SoCalGas On-Bill Financing (OBF) program offers qualified business customers 0% financing from $5,000 to $100,000 per meter for qualifying

203

Rocky Mountain Power - Energy FinAnswer | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

50% of eligible measure cost 50% of eligible measure cost Lighting Energy Savings Limit: 50%-75% of savings Payback Cap: 1 year; if incentive brings the simple payback below one year, the incenive is reduced so the simple payback equals one year Program Info State Idaho Program Type Utility Rebate Program Rebate Amount $0.12/kWh annual energy savings + $50/kW average monthly on-peak demand savings Provider Rocky Mountain Power Rocky Mountain Power's Energy FinAnswer program provides incentives to help its customers improve the efficiency of existing facilities and build new facilities that are significantly more efficient than code. New construction and retrofit projects for all industrial facilities can participate as well as all new commercial projects and commercial retrofits in facilities larger than 20,000 square feet.

204

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

41 - 19150 of 28,905 results. 41 - 19150 of 28,905 results. Download Policy Flash 2012-38 Attached is Policy Flash 2012-38 Acquisition Guide 42.2 Foreign Travel Approval http://energy.gov/management/downloads/policy-flash-2012-38 Article Estimating the Payback Period of Additional Insulation Adding insulation to an existing home often has an attractive payback period. http://energy.gov/energysaver/articles/estimating-payback-period-additional-insulation Download Safety Management System Policy Safety Management Systems provide a formal, organized process whereby people plan, perform, assess, and improve the safe conduct of work. The Safety Management System is institutionalized through... http://energy.gov/em/downloads/safety-management-system-policy Download Enhancing Railroad Hazardous Materials Transportation Safety

205

SCE - Non-Residential On-Bill Financing Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

On-Bill Financing Program On-Bill Financing Program SCE - Non-Residential On-Bill Financing Program < Back Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Multi-Family Residential Nonprofit Schools State Government Tribal Government Savings Category Other Maximum Rebate Taxpayer Funded Institutions: up to $250,000/meter with 5 year max payback Non-Institutional Customers: up to $100,000/meter with 5 year max payback State of California: up to $1,000,000 with 10 year max payback Program Info Start Date 8/2/2010 State California Program Type Utility Loan Program Rebate Amount 5,000 minimum Provider Business Programs The SoCalGas On-Bill Financing (OBF) program offers qualified business customers 0% financing from $5,000 to $100,000 per meter for qualifying

206

FUEL CONSUMPTION AND COST SAVINGS OF CLASS 8 HEAVY-DUTY TRUCKS POWERED BY NATURAL GAS  

SciTech Connect

We compare the fuel consumption and greenhouse gas emissions of natural gas and diesel heavy-duty (HD) class 8 trucks under consistent simulated drive cycle conditions. Our study included both conventional and hybrid HD trucks operating with either natural gas or diesel engines, and we compare the resulting simulated fuel efficiencies, fuel costs, and payback periods. While trucks powered by natural gas engines have lower fuel economy, their CO2 emissions and costs are lower than comparable diesel trucks. Both diesel and natural gas powered hybrid trucks have significantly improved fuel economy, reasonable cost savings and payback time, and lower CO2 emissions under city driving conditions. However, under freeway-dominant driving conditions, the overall benefits of hybridization are considerably less. Based on payback period alone, non-hybrid natural gas trucks appear to be the most economic option for both urban and freeway driving environments.

Gao, Zhiming [ORNL] [ORNL; LaClair, Tim J [ORNL] [ORNL; Daw, C Stuart [ORNL] [ORNL; Smith, David E [ORNL] [ORNL

2013-01-01T23:59:59.000Z

207

Sandia National Laboratories: News: Publications: Lab News  

NLE Websites -- All DOE Office Websites (Extended Search)

Sept. 7, 2012 Sept. 7, 2012 Experiments verify key aspect of Sandia nuclear fusion concept NOT YOUR USUAL BIRTHDAY CAKE - Ryan McBride (1648) pays close attention to the tiny central beryllium liner that will be imploded by the intense magnetic field generated by the Z machine's huge electrical current. This will happen in the next of a run of tests to create a mechanism to achieve scientific break-even or better in dry-run nuclear fusion experiments. The larger cylinders forming a circle on the exterior of the base plate measure Z's load current by picking up the generated magnetic field. (Photo by Randy Montoya) by Neal Singer Magnetically imploded tubes called liners, intended to help produce nuclear fusion conditions at scientific "break-even" energies or better within

208

Slide 1  

NLE Websites -- All DOE Office Websites (Extended Search)

2, 2013 2, 2013 Estimating the Potential for Oil Production and CO 2 Storage from CO 2 EOR Using the FE/NETL CO 2 EOR Storage Cost Model FE/NETL CO 2 EOR Storage Cost Model Integration with Additional FE/NETL Models CO 2 CTUS NEMS Model CO 2 CTUS Model (Standalone) CO 2 Saline Storage Cost Model, V1 CO 2 Capture Cost Model, V2 CO 2 Transport Cost Model V1 CO 2 EOR Storage Cost Model, V1 (in development) 2 * Estimates costs, revenues and cash flow to owners for a CO 2 EOR site for specified prices of oil ($/ST Bbl) and CO 2 ($/tonne) * Determines break-even price of oil (for fixed price of CO 2 ) and break-even price of CO 2 (for fixed price of oil) * Includes costs for complying with subpart UU and (optionally) subparts RR and Class VI well regulations * Identifies cost drivers for CO

209

Economic and thermal feasibility of multi stage flash desalination plant with brinefeed mixing and cooling  

Science Journals Connector (OSTI)

Abstract Improving the performance of MSF (multi stage flash) desalination plants is a major challenge for desalination industry. High feed temperature in summer shortens the evaporation range of MSF plants and limits their yield. Installing a cooler at the feed intake expands the evaporation range of MSF plants and increases their yield. Adding a cooler and a mixing chamber increases the capital and operational costs of MSF plants. This paper presents thermal and economic analysis of installing a feed cooler at the plant intake. The profit of selling the additionally produced water must cover the cost of the cooling system. The selling prices for a reasonable breakeven depend on the selected cooling temperature. The cost of installing coolers capable of maintaining feedbrine mixture temperatures of 1820C shows breakeven selling prices of 0.50.9$/m3. These prices fall within the current range of potable water selling prices.

Majed M. Alhazmy

2014-01-01T23:59:59.000Z

210

Pacific Power - FinAnswer Express | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pacific Power - FinAnswer Express Pacific Power - FinAnswer Express Pacific Power - FinAnswer Express < Back Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Nonprofit State Government Savings Category Other Home Weatherization Commercial Weatherization Heating & Cooling Cooling Commercial Heating & Cooling Appliances & Electronics Construction Design & Remodeling Manufacturing Heat Pumps Heating Commercial Lighting Lighting Insulation Water Heating Windows, Doors, & Skylights Maximum Rebate General: 70% of energy efficiency project cost If incentive brings the simple payback below one year, the incentive is reduced so the simple payback equals one year. Program Info State California Program Type Utility Rebate Program Rebate Amount T-8 Lighting Fixtures: $3-$7

211

Microcomputer Analysis of Pumping System Performance  

E-Print Network (OSTI)

report details the total annual energy use, energy cost, total capital cost, and present worth of each control option. In addition, the payback period or the rate of return can be computed based on the savings realized from using the variable speed... report details the total annual energy use, energy cost, total capital cost, and present worth of each control option. In addition, the payback period or the rate of return can be computed based on the savings realized from using the variable speed...

Bierschenk, J. L.; Schmidt, P. S.

212

Photovoltaics: New opportunities for utilities  

SciTech Connect

This publication presents information on photovoltaics. The following topics are discussed: Residential Photovoltaics: The New England Experience Builds Confidence in PV; Austin's 300-kW Photovoltaic Power Station: Evaluating the Breakeven Costs; Residential Photovoltaics: The Lessons Learned; Photovoltaics for Electric Utility Use; Least-Cost Planning: The Environmental Link; Photovoltaics in the Distribution System; Photovoltaic Systems for the Rural Consumer; The Issues of Utility-Intertied Photovoltaics; and Photovoltaics for Large-Scale Use: Costs Ready to Drop Again.

Not Available

1991-07-01T23:59:59.000Z

213

U.S. Energy Situation, Ethanol, and Energy Policy  

E-Print Network (OSTI)

Slide 1 U.S. Energy Situation, Ethanol, and Energy Policy Wally Tyner #12;Slide 2 Breakeven Corn Corn ($/bu) Crude($/bbl) Energy basis Price premium for octane/oxygen With subsidy and price premium.25 2.5 2.75 3 3.25 3.5 3.75 4 4.25 4.5 4.75 5 Corn ($/bu) Crude($/bbl) Energy basis Price premium

214

'Mini'-Roadmapping - Ensuring Timely Sites' Cleanup / Closure by Resolving Science and Technology Issues  

SciTech Connect

Roadmapping is a powerful tool to manage technical risks and opportunities associated with complex problems. Roadmapping identifies technical capabilities required for both project- and program-level efforts and provides the basis for plans that ensure the necessary enabling activities will be done when needed. Roadmapping reveals where to focus further development of the path forward by evaluating uncertainties for levels of complexity, impacts, and/or the potential for large payback. Roadmaps can be customized to the application, a graded approach if you will. Some roadmaps are less detailed. We have called these less detailed, top-level roadmaps mini-roadmaps. These miniroadmaps are created to tie the needed enablers (e.g., technologies, decisions, etc.) to the functions. If it is found during the mini-roadmapping that areas of significant risk exist, then those can be roadmapped further to a lower level of detail. Otherwise, the mini-roadmap may be sufficient to manage the project / program risk. Applying a graded approach to the roadmapping can help keep the costs down. Experience has indicated that it is best to do mini-roadmapping first and then evaluate the risky areas to determine whether to further evaluate those areas. Roadmapping can be especially useful for programs / projects that have participants from multiple sites, programs, or other entities which are involved. Increased synergy, better communications, and increased cooperation are the results from roadmapping a program / project with these conditions. And, as with any trip, the earlier you use a roadmap, the more confidence you will have that you will arrive at your destination with few, if any, problems. The longer the trip or complicated the route, the sooner the map is needed. This analogy holds true for using roadmapping for laying out program / project baselines and any alternative (contingency) plans. The mini-roadmapping process has been applied to past projects like the hydrogen gas generation roadmap and the subsurface contaminant focus area (SCFA), and its basic form is being applied in the formulation of the 2012 Plan at the Idaho National Engineering and Environmental Laboratory (INEEL). There are also plans to apply this process in the near future for other projects/programs.

Dale Luke; James Murphy

2003-02-01T23:59:59.000Z

215

Last January, two weeks into his UNH career after  

E-Print Network (OSTI)

The University of New Hampshire goes top tier . . . 3 Spheres The Sound of Science Shooting the forests from into the role of UNH's InterimVice President for Research and Public Service, it's payback time. "If I didn president for research and public service? An odd coupling it would seem but, Aber notes, it's just one more

216

Handling risk and uncertainty in petroleum exploration and asset management: An overview  

Science Journals Connector (OSTI)

...with doing this in the oil and gas industry is that...has many parallels with oil and gas: high up-front capex for paybacks that are...opportunities, or enhanced oil recovery projects. Such...designate a target of capex less than x and production...

P. Craig Smalley; Stephen H. Begg; Michael Naylor; Sigrunn Johnsen; Antonella Godi

217

1ERIN E. MOORE CURRICULUM VITAE  

E-Print Network (OSTI)

Model for Calculating Greenhouse Gas Payback Time for Building System Upgrades. Sustainable Structures and Judson Taylor, eds., Building Enclosure Sustainability Symposium (BESS)-Sustainable Buildings (SB) 13 Goggles and Other Tools for Viewing Building Materials for Design. In Dermody, Robert J. and Andrzej

218

"We have 7 cogen systems and are very pleased with the cost savings."  

E-Print Network (OSTI)

systems at Sanger High School. With funding from a utility rebate and an Energy Commission low interest,760,000 kWh Annual Energy Cost Savings: $62,048 Loan Amount: $232,400 after PG&E rebate Simple Payback: 3

219

Energy efficient HVAC system features thermal storage and heat recovery  

SciTech Connect

This article describes a HVAC system designed to efficiently condition a medical center. The topics of the article include energy efficient design of the HVAC system, incentive rebate program by the local utility, indoor air quality, innovative design features, operations and maintenance, payback and life cycle cost analysis results, and energy consumption.

Bard, E.M. (Bard, Rao + Athanas Consulting Engineering Inc., Boston, MA (United States))

1994-03-01T23:59:59.000Z

220

"We retrofitted mechanical systems in 8 buildings!"  

E-Print Network (OSTI)

loans have enabled us to complete many energy saving projects with excellent payback% funding for most projects Repay the loan with your energy savings Up to $1 million per application It's fast and easy to get your loan Loan approval in four weeks or less Energy savings stretch your

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Research and development of energy-efficient appliance motor-compressors. Final report. Volume II: market evaluation  

SciTech Connect

An exploratory experiment asked consumers to verbalize how they chose among a set of hypothetical refrigerators with different initial prices and operating costs. From these verbalizations it was determined that many consumers used a payback criterion whereby they would choose the energy efficient appliance if the increase in initial price was recouped in future operating cost savings within an acceptable period of time. This acceptable period of time is called a payback period. Based on these preliminary results, a field study of 337 respndents was undertaken to estimate the distribution of acceptable payback periods for two energy consuming appliances, air conditioners and refrigerator-freezers. The payback distributions were then used to estimte the percent of consumers (i.e., market shares) who would select the energy efficient appliances for a range of price increases and operating cost savings. Following the field study, 123 consumers participated in a simulated shopping experiment to (a) see if the results of the field survey would hold in a more realistic shopping environment and (b) determine the effects of several market variables on the demand for energy efficiency.

Staelin, R.; Redinger, R.P.

1980-12-01T23:59:59.000Z

222

Proposition 39 Guideline Revisions Below is a summary of the major changes to the Proposition 39 Guidelines.  

E-Print Network (OSTI)

efficiency, clean energy, and jobs benefits." The intent of this statue requirement is that a "project: · Each energy measure must have a simple payback either within the remaining period of the "lease energy cost benefit will be transferred to the LEA. 67 Schedule Energy Commission to begin

223

Retrofit Projects Through Pinch Technology  

E-Print Network (OSTI)

The pinch concept in heat recovery network design has become well-established in recent years. In ICI, the concept was reported to have saved an average of 30% on energy cost, coupled with capital cost savings in new plant designs. Payback times...

Linnhoff, B.; Vredeveld, D. R.

1984-01-01T23:59:59.000Z

224

Apply Today! City of San Carlos  

E-Print Network (OSTI)

reduce the impact of these increasing costs NOW by installing energy-saving lights, heating and cooling. These included lighting, HVAC, variable air volume, air handler, and control upgrades. In addition to the energy Electric Demand: 16 kW Simple Payback: 8.1 years California Energy Commission 1516 9th Street Sacramento

225

Thermal Storage Systems at IBM Facilities  

E-Print Network (OSTI)

,000 ton hours. Through reduced chiller plant capacity and annual operating cost savings in primarily electric demand charges the payback will be approximately 3 1/2 years. The water is stored in multiple, insulated tanks, located above the ground. A...

Koch, G.

1981-01-01T23:59:59.000Z

226

A multistage model for distribution expansion planning with distributed generation in a deregulated electricity market  

Science Journals Connector (OSTI)

Distribution systems management is becoming an increasingly complicated issue due to the introduction of new technologies, new energy trading strategies and a new deregulated environment. In the new deregulated energy market and considering the incentives ... Keywords: GAMS-MATLAB interface, distributed generation (DG), distribution company (DISCO), investment payback time, microturbine, social welfare

S. Porkar; A. Abbaspour-Tehrani-Fard; P. Poure; S. Saadate

2010-06-01T23:59:59.000Z

227

Technical and economical assessment of the utilization of photovoltaic systems in residential buildings: The case of Jordan  

Science Journals Connector (OSTI)

This paper studies the feasibility of utilizing photovoltaic systems in a standard residential apartment in Amman city in Jordan. Data on solar radiation, sunshine duration and the ambient temperature has been recorded in Amman city. An apartment in Amman was chosen as a case study to conduct energy and economic calculations. The electrical power needs and cost were calculated for the apartment. The component design and cost of PV system required to supply required energy was calculated and the payback period for the suggested stand-alone PV system in this paper was estimated in a constant inflation rate in electricity price similar to that of interest rate. The calculated payback period was high in a stand-alone system, to decrease payback period a grid-connected PV system is suggested. Considering an annual increase of 3% in electricity price, 15% of payback period was decreased in a stand-alone PV system and 21% in a grid-connected PV system. The output results of this study show that installation of PV system in a residential flat in Jordan may not be economically rewarding owing to the high cost of PV system compared to the cost of grid electricity. A feed-in tariff law of solar electricity may help to reduce PV system cost like the case of Germany. Additional conclusions are PV systems may be economically rewarding in Jordan if applied in locations far from electrical grid or in remote large scale PV power installations to overcome economical limitations of PV technology.

A. Al-Salaymeh; Z. Al-Hamamre; F. Sharaf; M.R. Abdelkader

2010-01-01T23:59:59.000Z

228

The Esso Energy Award Lecture, 1998. Boosting production from low-pressure oil and gas fields: a revolution in hydrocarbon production  

Science Journals Connector (OSTI)

...have developed a simple cost-effective system which...moving parts; low capital cost, with the payback achieved...14% coal oil gas hydro nuclear Figure 2. World primary...such as ASME, API, BS, Dnv stoomwezen (Dutch...The WELLCOM system is a cost-effective way to boost...

1999-01-01T23:59:59.000Z

229

Photovoltaics Life Cycle Analysis  

E-Print Network (OSTI)

Metrics of Life-Cycle Performance Energy Payback Times (EPBT) Greenhouse Gas Emissions (GHG) Toxic Gases #12;6 Life Cycle GHG Emissions ­EuropeLife Cycle GHG Emissions ­Europe Insolation: 1700 kwh/m2-yr 0 10 #12;7 Life Cycle GHG Emissions ­Comparison with Conventional Technologies Life Cycle GHG Emissions

230

Printed in the United States of America. Available from National Technical Information Service  

E-Print Network (OSTI)

and house, water flow and temperature. Compared to oil, at 1984 prices, a payback of 4 to 6 years. The COP of the second unit was lower, still better than oil heating but not cost-effective at today U.S. Department of Commerce 5285 Port Royal Road, Springfield. Virginia 22161 NTIS price codes

Oak Ridge National Laboratory

231

California Homebuyers Find More Value in Energy-Efficient Labeled Homes  

Energy.gov (U.S. Department of Energy (DOE))

During a time when many homeowners have seen their homes' values decrease, some encouraging data shows how investing in efficiency will boost resale value. Aside from the increased comfort and reduced utility bills that stem from home energy efficiency upgrades, homeowners who invest in energy-efficient measures might see a bigger payback when they put their house up for sale.

232

nature photonics | VOL 3 | JUNE 2009 | www.nature.com/naturephotonics 325 progress article  

E-Print Network (OSTI)

for narrowband performance1,2 . In solar energy conversion3 , however, the Sun's broad spectrum (Fig. 1a.5 reference irradi ance conditions (see Table 1) from 32% to 49%. The benefits of matching a solar cell to these perform ance records have several practical disadvantages: high materials cost, high energy payback time

233

Darden Executive Education Improve the Way You Do Business!  

E-Print Network (OSTI)

methodology · Capital Expenditure Analysis ­ Present-value concepts ­ Analysis for capital appropriations ratios ­ Risk analysis ­ Economic profit analysis ­ Working capital analysis · Strategic Cost Management ­ The cost of capital and required returns ­ Payback, return on investment, and net present value Special

Acton, Scott

234

Chapter 6 - Investment Appraisal  

Science Journals Connector (OSTI)

Abstract This chapter describes the investment appraisal, which is part of the business case. It includes the calculations for return on investment (ROI) and net present value (NPV) using the discounted cash flow (DCF) method. Also discussed are payback, internal rate of return (IRR), and cost/benefit analysis. The chapter contains a discount factor table and worked examples.

Albert Lester

2014-01-01T23:59:59.000Z

235

Steam System Efficiency Optimized After J.R. Simplot Fertilizer Plant Receives Energy Assessment  

SciTech Connect

This case study describes how the J.R. Simplot company's Don Plant in Pocatello, Idaho, achieved annual savings of $335,000 and 75,000 MMBtu, with a simple payback of 6.5 months, after receiving a DOE Save Energy Now energy assessment.

Not Available

2008-07-01T23:59:59.000Z

236

IRS Parking Facility Lighting Retrofit Reduces Annual Energy Use by 76%  

Energy.gov (U.S. Department of Energy (DOE))

Document provides an overview of how the IRS and MC Realty Group, its property management firm, achieved a 76% reduction in lighting energy use at an IRS facility parking garage in Kansas City, Missouri. The retrofit resulted in annual energy savings of 2 million kWh, annual cost savings of over $122,000, and a simple payback of 2.5 years.

237

Texas Tech University Energy Savings Program July 2009 Update  

E-Print Network (OSTI)

from the previous year normalized to current energy costs and campus square footage. For the first Program for four energy projects. 1) AHU VFD Project ­ Final cost of $558,904 with a payback of 5.2 yearsTexas Tech University Energy Savings Program July 2009 Update The Texas Tech Energy Savings Update

Zhuang, Yu

238

Energy Cost Reduction Measures Identified for Texas State Agencies  

E-Print Network (OSTI)

audit programs examined a total of 35.3 million square feet of state-owned space. Energy cost reduction measures with paybacks of four years or less were identified. The purpose of this paper is to present the projects identified in 1986. Most relate...

Grigg, T. J.; Verdict, M. E.

1987-01-01T23:59:59.000Z

239

The GLOBE Sustainability Toolbox is a "starter kit" that provides you with sector-specific examples of simple and low-cost improvements that you, as a social housing provider, can make to increase the efficiency of your operations.  

E-Print Network (OSTI)

sustainability SECTION 1 SUSTAINABILITY: AN OVERVIEW SECTION 2 YOUR BUILDING AS A SYSTEM SECTION 3 THE GREEN in Sustainability Simple Payback: A Real Life Example Government and Utility Incentives SECTION 2 YOUR BUILDINGThe GLOBE Sustainability Toolbox is a "starter kit" that provides you with sector-specific examples

Keinan, Alon

240

Evaluation of Northern Illinois Residential Retrofit Delivery Practices  

SciTech Connect

Using a detailed BEopt analysis, PARR has developed packages of measures following a 'loading order' appropriate for cold climates at increasing levels of savings. Packages of measures to provide 'good, better, best' energy savings were determined based on predicted source energy savings, safety issues, program costs and simple payback for customers.

Rowley, P.; Kerr, R.; Brand, L.

2012-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Bridging the Gap Between Commissioning Measures and Large Scale Retrofits in Existing Buildings  

E-Print Network (OSTI)

to the systems installed in the building to reach the same goal. The purpose of the investigations presented here is to find energy-saving measures which economically fall between the retro-commissioning measures which typically have very short paybacks...

Bynum, J.; Jones, A.; Claridge, D.E.

2011-01-01T23:59:59.000Z

242

Bridging the Gap Between Commissioning Measures and Large Scale Retrofits in Existing Buildings  

E-Print Network (OSTI)

installed in the building to reach the same goal. The purpose of the investigations presented here is to find energy-saving measures which economically fall between the retro-commissioning measures which typically have very short paybacks and the large scale...

Bynum, J.; Jones, A.; Claridge, D. E.

243

Alternative Heat Recovery Options for Single-Stage Spray Dryers  

E-Print Network (OSTI)

describes an analysis performed at a milk products plant, where a spray dryer is used to produce powdered milk. Discussed approaches include air-to-air and air-liquid-air recuperates. Key issues include heat recovery potential, capital costs, overall payback...

Wagner, J. R.

1984-01-01T23:59:59.000Z

244

A Study of Adjustable Speed Drive Applications for Pumps  

E-Print Network (OSTI)

(Chart C or E) 2200 /600/tOOO /600 /600 2800Total Retrofit Cost, $ 7800 3400 5Z00 5~OO Retrofit Payback (years) /.64.5 /.9 4.$ 3.2 4$00Valve Cost (Chart D) 4500 45004$00 4500 (,0 (,0lIDO <0<'0Total New Cost, $ 0.6 <. 0./ <0./ <. 0./ <'0./ New...

Triezenberg, D. M.; Lakhavani, S. T.

1983-01-01T23:59:59.000Z

245

Performance Optimization of a Fan System- Overcoming Impacts of Modified Design Criteria Due to Regulatory Requirements and Changed Operating Conditions  

E-Print Network (OSTI)

that was applied to address fan inefficiency. Energy savings from optimizing the system are estimated to be 338 kW, nearly half of the original measured input power of 678 kW. The project is currently being implemented and will have a payback period of less than 8...

Wroblewski, R. G.; Preis, F.; Smith, R.

246

Marginal Abatement Cost Tool (MACTool) | Open Energy Information  

Open Energy Info (EERE)

Marginal Abatement Cost Tool (MACTool) Marginal Abatement Cost Tool (MACTool) Jump to: navigation, search Tool Summary Name: Marginal Abatement Cost Tool (MACTool) Agency/Company /Organization: World Bank Climate Smart Planning Platform Sector: Climate, Energy Topics: Analysis Tools User Interface: Spreadsheet Complexity/Ease of Use: Simple Website: climatesmartplanning.org/node/33 Cost: Free Related Tools Global Relationship Assessment to Protect the Environment (GRAPE) Global Trade and Analysis Project (GTAP) Model MIT Emissions Prediction and Policy Analysis (EPPA) Model ... further results Find Another Tool FIND DEVELOPMENT IMPACTS ASSESSMENT TOOLS A spreadsheet tool for building marginal abatement cost curves, and for calculating break-even carbon prices. Supports comparison of costs and

247

Progress in inertial fusion research at the Los Alamos Scientific Laboratory. Paper No. IAEA-CN-38/B-2  

SciTech Connect

The Los Alamos Scientific Laboratory Inertial Confinement Fusion Program is reviewed. Experiments using the Helios CO/sub 2/ laser system delivering up to 6 kJ on target are described. Because breakeven energy estimates for laser drivers of 1 ..mu..m and above have risen and there is a need for CO/sub 2/ experiments in the tens-of-kilojoule regime as soon as practical, a first phase of Antares construction is now directed toward completion of two of the six original modules in 1983. These modules are designed to deliver 40 kJ of CO/sub 2/ laser light on target.

Perkins, R.B.

1980-01-01T23:59:59.000Z

248

Geothermal loan guaranty cash flow model: description and users' manual  

SciTech Connect

This is the users guide for the Geothermal Loan Guaranty Cash Flow Model (GCFM). GCFM is a Fortran code which designs and costs geothermal fields and electric power plants. It contains a financial analysis module which performs life cycle costing analysis taking into account various types of taxes, costs and financial structures. The financial module includes a discounted cash flow feature which calculates a levelized breakeven price for each run. The user's guide contains descriptions of the data requirements and instructions for using the model.

Keimig, M.A.; Rosenberg, J.I.; Entingh, D.J.

1980-11-01T23:59:59.000Z

249

Economic applicability of atomic energy as a source of power in underdeveloped countries  

E-Print Network (OSTI)

i'inancial charges) 53 10. Break-even Point for I'Juclear Plants shown at Different Rates of Return on Investment for Various Costs of Conventional Fuel 54 11. Total Cost of Generating Nuclear Power at Various Plant Factor- and at Various... Return on Investment 55 12. Cost of Power, Comparing:Juclear and Oil Plants, at Bodega Bay. . 59 LIST OF ILLUSTRATIONS Figure Page 1, Relationship Between Per Capita Energy Consumption and Per Capita Income of Underdeveloped Countries for the Year...

Ahmed, Sheik Basheer

2012-06-07T23:59:59.000Z

250

An economic analysis of the effects of land subsidence in the Houston-Baytown region, Texas  

E-Print Network (OSTI)

direct and indirect costs of pumping Q may bc c ac, ad, or ae, depending on whether TG is less than, ps equal to, or greater than TG , respectively, PAWL and Q are not known, but P and P will be c a P given, and TIC which is related to a given Q... be used to estimate a break-even withdrawal level (BEWL). Since P (Q ) is TIC , we can s c s express relationship (6a) as the equationi (Q ) = P (Q ) + TIC which can be further reduced to& (7) (P ? P )Q = TIC or Q = TIC P ? P In Figure 0, NAWL...

Warren, J. P

2012-06-07T23:59:59.000Z

251

Income and Cost Analysis: Cooperative Cotton Gins and Cooperative Supply Associations of Texas, Season 1949-50.  

E-Print Network (OSTI)

inputs. The de~ivation of cost estimating equations enables the gin manager to evaluate his own total cost and items of cost in terms of average performance of the whole industry. The gin manager who compares his own costs with standard costs over a...- ard income and costs can evaluate his own net margin situation as to additions or deductions as income is higher or lower than standard and as costs are Power or higher than standard. CONTENTS I I Page Digest 2 "Break-even" Volume-A Concept...

Paulson, W. E.

1955-01-01T23:59:59.000Z

252

PowerPoint Presentation Template  

NLE Websites -- All DOE Office Websites (Extended Search)

Photo Photo Economic Analysis of Ultrasupercritical PC Plants George Booras Manager, Technology Assessment Science & Technology Division Combustion Technology University Alliance Columbus, Ohio August 4, 2003 2 Combustion Technology University Alliance Workshop, August 4, 2003, Columbus, OH Presentation Outline * Economic Analysis Methodology - Capital Cost Estimating Basis - Revenue Requirement Methodology - EPRI PC Plant Cost & Performance Model * Assessment of Competing Technologies - Conventional Pulverized Coal Plants - Integrated Gasification Combined Cycle * Breakeven Capital Cost for USC Plants * Sensitivity Analysis * Conclusions 3 Combustion Technology University Alliance Workshop, August 4, 2003, Columbus, OH Economic Analysis Methodology * USC plants offer very high efficiencies

253

TransForum v9n2 - PHEV Research  

NLE Websites -- All DOE Office Websites (Extended Search)

PHEVs Need Further Research for Acceptable Payback PHEVs Need Further Research for Acceptable Payback Fuel Consumption as a Function of Distance PHEV graph In order to double the fuel displacement obtained with a 4kWh battery, the battery size had to be quadrupled to 16kWh. Aymeric Rousseau and his team at Argonne studied the impact of real-world drive cycles on the fuel efficiency and costs of different plug-in hybrid electric vehicle (PHEV) configurations. They found that while different PHEV configurations all demonstrated great potential for replacing gasoline (with less gasoline consumed as more electricity was used), the benefit of adding a larger battery seemed to decrease with increasing battery pack size. "In general, the larger the battery, the more fuel saved," said Rousseau, principal investigator of the vehicle modeling and simulation

254

Pacific Power - Energy FinAnswer | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pacific Power - Energy FinAnswer Pacific Power - Energy FinAnswer Pacific Power - Energy FinAnswer < Back Eligibility Agricultural Commercial Construction Fed. Government Industrial Installer/Contractor Institutional Local Government Nonprofit State Government Savings Category Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Other Maximum Rebate Retrofit: 50% of the eligible energy efficiency measure cost Lighting: 50% of savings If incentive brings the simple payback below one year, the incentive is reduced so the simple payback equals one year. Program Info State California Program Type Utility Rebate Program Rebate Amount $0.12/kWh-$0.18/kWh annual energy savings + $50/kW average monthly on-peak demand savings

255

Property:Incentive/EligSysSize | Open Energy Information  

Open Energy Info (EERE)

Property Property Edit with form History Facebook icon Twitter icon » Property:Incentive/EligSysSize Jump to: navigation, search Property Name Incentive/EligSysSize Property Type Text Description Eligible System Size. Pages using the property "Incentive/EligSysSize" Showing 25 pages using this property. (previous 25) (next 25) 3 30% Business Tax Credit for Solar (Vermont) + 150 kW A AEP (Central and SWEPCO) - Coolsaver A/C Tune Up (Texas) + AEP Texas residential and business customers with units up to 25 tons. AEP Ohio - Commercial Custom Project Rebate Program (Ohio) + Must have a minimum of 1 year simple payback or maximum of 7 years simple payback without the incentive AEP Ohio - Renewable Energy Credit (REC) Purchase Program (Ohio) + Must have a rated capacity of 100kW or less

256

Energy Cost Calculator for Compact Fluorescent Lamps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Compact Fluorescent Lamps Compact Fluorescent Lamps Energy Cost Calculator for Compact Fluorescent Lamps October 8, 2013 - 2:18pm Addthis This tool calculates the payback period for your calc retrofit project. Modify the default values to suit your project requirements. Existing incandescent lamp wattage Watts Incandescent lamp cost dollars Incandescent lamp life 1000 hours calc wattage Watts calc cost dollars calc life (6000 hours for moderate use, 10000 hours for high use) 8000 hours Number of lamps in retrofit project Hours operating per week hours Average cost of electricity 0.06 $/kWh Relamper labor costs $/hr Time taken to retrofit all lamps in this project min Time taken to relamp one lamp min Type of Relamping Practiced: Group Relamping: Calculate Simple Payback Period months

257

TEMPLATE FOR EES DIRECTORATE QUARTERLY HIGHLIGHTS  

NLE Websites -- All DOE Office Websites (Extended Search)

August 2012 August 2012 Fuel Consumption and Cost Saving of Natural Gas as Alternative Fuel in Class 8 Heavy-Duty (HD) Trucks The fuel consumption and greenhouse gas emissions of natural gas as alternative fuel in HD class 8 trucks have been investigated under consistent simulated drive cycle conditions. Fuel efficiencies, fuel costs, and payback periods have been compared between diesel and natural gas in both conventional and hybrid HD trucks. The study shows that although trucks powered by natural gas have higher fuel consumption, their carbon dioxide (CO 2 ) emissions and costs are lower than comparable diesel trucks. Both diesel and natural gas powered hybrid trucks have significantly improved fuel economy, reasonable cost savings and payback time, and lower CO

258

Insulation | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Insulation Insulation Insulation Where to Insulate Learn where to insulate in a home to save money and improve comfort. Read more Insulation Get the facts about how insulation works. Read more Estimate the Payback Period for Insulation Adding insulation to your home will likely have an attractive payback. Read more You can reduce your home's heating and cooling costs through proper insulation and air sealing techniques. These techniques will also make your home more comfortable. Any air sealing efforts will complement your insulation efforts, and vice versa. Proper moisture control and ventilation strategies will improve the effectiveness of air sealing and insulation, and vice versa. Featured Insulation for New Home Construction Planning carefully for insulation results in reduced utility bills and superior comfort during the life of the home. In this house, raised heel trusses accommodate R-60 insulation. | Credit: Paul Norton, NREL.

259

Fact Sheet: ES-Select - A Decision Support Tool (October 2012) | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ES-Select - A Decision Support Tool (October 2012) ES-Select - A Decision Support Tool (October 2012) Fact Sheet: ES-Select - A Decision Support Tool (October 2012) DNV KEMA developed the Energy Storage Select (ES-Select) decision-support tool to help users identify feasible energy storage technology options as well as provide the probability of reaching a payback point and the statistical distribution of the payback year. It is a sophisticated, highly interactive model that offers a means to conduct careful analysis of the many interrelated factors that influence energy storage performance. Fact Sheet: ES-Select - A Decision Support Tool (October 2012) More Documents & Publications Energy Storage Systems 2012 Peer Review and Update Meeting Energy Storage Systems 2012 Peer Review Presentations - Poster Session 1

260

Kansas City Power and Light - Commercial/Industrial Energy Efficiency  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

4,907-$35,142 by business 4,907-$35,142 by business class size and differs among Missouri and Kansas residents. Program Info State Kansas Program Type Utility Rebate Program Rebate Amount Energy Audit ( Energy Audit (> 25,000 sq ft): 50% of cost, up to $500 High Performance T8 Fixtures: $20 - $30/fixture Standard T8 Lamps/Ballasts: $2 - $10/unit Lighting Power Density: $1/watt per square foot High Intensity Fluorescent: $50/fixture Pulse Star Metal Halide: $50/fixture Lighting Controls: $20 - $50 per sensor Single Phase Package/Split System AC: $92/ton Three Phase Unitary/Split System AC: $92/ton Unitary/Split System AC: $73 - $79/ton Motors: $50 - $130/motor Custom (Retrofit): The lesser of a buydown to a two year payback, or 50% of the incremental cost Custom (New Construction): The lesser of a buydown to a two year payback,

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Kansas City Power and Light - Commercial/Industrial Energy Efficiency  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7,299-$52,276 by business 7,299-$52,276 by business class, size, new construction, retrofit, and location. Program Info State Missouri Program Type Utility Rebate Program Rebate Amount Energy Audit ( Energy Audit (> 25,000 sq ft): 50% of cost, up to $500 High Performance T8 Fixtures: $20 - $30/fixture Standard T8 Lamps/Ballasts: $2 - $10/unit Lighting Power Density: $1/watt per square foot High Intensity Fluorescent: $50/fixture Pulse Star Metal Halide: $50/fixture Lighting Controls: $20 - $50 per sensor Single Phase Package/Split System AC: $92/ton Three Phase Unitary/Split System AC: $92/ton Unitary/Split System AC: $73 - $79/ton Motors: $50 - $130/motor Custom (Retrofit): The lesser of a buydown to a two year payback, or 50% of the incremental cost Custom (New Construction): The lesser of a buydown to a two year payback,

262

Solar Power Purchase Agreements  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Solar Power Purchase Agreements Solar Power Purchase Agreements Brian Millberg | Energy Manager, City of Minneapolis Direct Ownership * Financial: Even at $3/kW installed cost, simple payback is 18 years (initial electricity cost of $0.10/kWh and 3%/year electricity cost inflation) * Politics: How to justify expense with such a long payback * If RECS begin to have some real value, this would be a positive for ownership. 2 PPA Advantages * No/low up-front costs * City can take advantage of Investment Tax Credits (ITCs) - This leads to low electricity costs * Predictable electricity cost for length of contract * Avoid direct design/rebate/permitting work * No maintenance/operation headaches 3 PPA Financial Case (1 MW system) * PPA allows a developer to reduce system cost through:

263

Guide for the selection of supermarket refrigeration systems  

SciTech Connect

This report presents an evaluation of supermarket refrigeration involving the use of conventional and multiplex compressor systems. Computer simulations of these systems were performed for six representative sites. The performance predictions generated in this fashion were tabulated to allow hand calculation of electric costs for any prevailing electric rate schedule. A methodology was also developed to allow economic assessment of the conventional and multiplex systems and of various enhancements employed with the multiplex system. The results of the evaluation showed the multiplex refrigeration system produced a reasonable payback for all sites examined, depending upon the enhancements employed. System features that had the greatest impact on payback were heat reclaim, hot gas defrost, and floating head pressure. 25 figs., 28 tabs.

Walker, D.H.; Tsaros, T.L.; Deming, G.I. (Foster-Miller, Inc., Waltham, MA (USA))

1990-03-01T23:59:59.000Z

264

The energy smart pools computer program  

SciTech Connect

The U.S. Department Of Energy has developed the Energy Smart Pools computer program as part of its Reducing Swimming Pool Energy Costs initiative. With a minimum of input data, the user friendly software can provide a reasonable, unbiased estimate for indoor or outdoor pools of: (1) Annual pool water heating, air heating, and pump and fan motor energy costs. (2) Costs, savings, and payback of adding a pool cover system. (3) Costs, savings, and payback of adding a solar heating system. The program fulfills an important need for owners and service providers of the nations` over 1.5 million heated residential and commercial pools to be able to quickly and easily predict pool energy costs and potential energy conservation measure savings. Program results have been validated against recent pool research studies, actual pool utility bills, and other simulation results. Results should in most cases be reliable for investment and design decisions.

Jones, R.; Martin, R.; Gunn, J.

1996-05-01T23:59:59.000Z

265

Cogeneration from glass furnace waste heat recovery  

SciTech Connect

In glass manufacturing 70% of the total energy utilized is consumed in the melting process. Three basic furnaces are in use: regenerative, recuperative, and direct fired design. The present paper focuses on secondary heat recovery from regenerative furnaces. A diagram of a typical regenerative furnace is given. Three recovery bottoming cycles were evaluated as part of a comparative systems analysis: steam Rankine Cycle (SRC), Organic Rankine Cycle (ORC), and pressurized Brayton cycle. Each cycle is defined and schematicized. The net power capabilities of the three different systems are summarized. Cost comparisons and payback period comparisons are made. Organic Rankine cycle provides the best opportunity for cogeneration for all the flue gas mass flow rates considered. With high temperatures, the Brayton cycle has the shortest payback period potential, but site-specific economics need to be considered.

Hnat, J.G.; Cutting, J.C.; Patten, J.S.

1982-06-01T23:59:59.000Z

266

Plant Wide Assessment for SIFCO Industries, Inc.  

SciTech Connect

Sifco Industries carreid out a plant wide energy assessment under a collaborative program with the U.S. Department of Energy during October 2004 to September 2005. During the year, personnel from EIS, E3M, DPS, BuyCastings.Com, and Sifco plant facilities and maintenance personnel, as a team collected energy use, construction, process, equipment and operational information about the plant. Based on this information, the team identified 13 energy savings opportunities. Near term savings opportunities have a total potential savings of about $1,329,000 per year and a combined simple payback of about 11 months. Implementation of these recommendations would reduce CO2 emissions by about 16,000,000 pounds per year, which would reduce overall plant CO2 emissions by about 45%. These totals do not include another $830,000 per year in potential savings with an estimated 9-month payback, from converting the forging hammers from steam to compressed air.

Kelly Kissock, Arvind Thekdi et. al.

2005-07-06T23:59:59.000Z

267

ISO 50001 Conformant Energy Management Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

ISO 50001-conformant ISO 50001-conformant Energy Management Systems Aimee McKane Lawrence Berkeley National Laboratory atmckane@lbl.gov 518-782-7002 April 2, 2013 2 | Building Technologies Office eere.energy.gov * Energy efficiency improvements with very favorable payback periods often do not get implemented due to competing organizational priorities * Even projects that are implemented may not be sustained due to lack of supportive operational and maintenance practices Problem: Energy efficiency is not integrated into daily

268

ISO 50001 Conformant Energy Management Systems  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ISO 50001-conformant ISO 50001-conformant Energy Management Systems Aimee McKane Lawrence Berkeley National Laboratory atmckane@lbl.gov 518-782-7002 April 2, 2013 2 | Building Technologies Office eere.energy.gov * Energy efficiency improvements with very favorable payback periods often do not get implemented due to competing organizational priorities * Even projects that are implemented may not be sustained due to lack of supportive operational and maintenance practices Problem: Energy efficiency is not integrated into daily

269

Using Pinch Technology to Explore Trade-Offs Between Energy Cost, Capital Cost, Process Modifications, and Utility Selection  

E-Print Network (OSTI)

USING PINCH TECHNOLOGY TO EXPLORE TRADE-OFFS BETWEEN ENERGY COST, CAPITAL COST, PROCESS MODIFICATIONS, AND UTILITY SELECTION A.S. McMullan, Consultant and H.D. Spriggs, President Linnhoff March, Inc., Leesburg, Virginia ABSTRACT Process... (3), predict payback targets in retrofit situations (4), and design flexible heat exchanger networks (5). The most recent developments enable the process designer to explore the interactions and trade-offs between design variables, prior...

McMullan, A. S.

270

Electrical Analysis Tool Suite for Inductrial Energy Audits  

E-Print Network (OSTI)

20-23, 2014 AGENDA Current Available Tools Analysis Tools Demand Visualization Weather Disaggregation Demand Aberrations Photovoltaic Optimization Demand Scheduling Automatic Report Generation Demonstration ESL-IE-14-05-39 Proceedings of the Thrity... Orleans, LA. May 20-23, 2014 Photovoltaic Optimization Solar Tracking TMY3 Surface Radiation Data Radiative Power Model Cost Optimization Photovoltaic Array Size PV Array Cost Expected Power Savings Payback Period ESL-IE-14-05-39 Proceedings...

Morelli, F.

2014-01-01T23:59:59.000Z

271

Agricultural capital project analysis system  

E-Print Network (OSTI)

analysis. Three specific objectives were established: (1) To select the most suitable procedures for economic and finan- cial evaluation of agricultural projects in developing countries, in- cluding the incorporation of an appropriate sensitivity..., Mercedes and Segismundo Lopez. TABLE OF CONTENTS INTRODUCTION General Objectives Procedure Page 1 1 3 4 LITERATURE REVIEW Evaluation Financial Evaluation Payback Period Accounting Rate of Return Net Present Value Internal Rate of Return...

Lopez, Ramon Antonio

2012-06-07T23:59:59.000Z

272

Aromatics Extraction Plant Design Using Synthesis Techniques  

E-Print Network (OSTI)

and process modifications can make even larger savings possible. Table 1 summarizes the substantially reduced energy cost as successively more process synthesis techniques were applied. Paybacks are very shorl because the total capital cost remained nearly... utility target multiplied by the cost of hot utility plus the cold utility target multiplied by the cost of cold utility. The annual capital cost target is calculaled as follows: The area target above the pinch is divided by the number of units target...

Wilcox, R. J.; Nedwick, R.

273

Impact of Control System Technologies on Industrial Energy Savings  

E-Print Network (OSTI)

Modify temperature and pressure setpoints to meet requirements while optimizing energy use CHILLER ROOM TB Static Pressure Setpoint Reset Thermostatic Temperature Setpoint ESL-IE-14-05-40 Proceedings of the Thrity-Sixth Industrial Energy Technology... Conference New Orleans, LA. May 20-23, 2014 1. HVAC: Seasonal Temperature Resets I. SETPOINT ADJUSTMENT Low payback, high savings! Image: http://www.ncelectriccooperatives.com/electricity/homeEnergy/thermostats_intro.htm Average Savings: $10,000 per year...

Parikh, P.; Pasmussen, B. P.

2014-01-01T23:59:59.000Z

274

Wastewater recycling and heat reclamation at the Red Lion Central Laundry, Portland, Oregon  

SciTech Connect

This report discusses water, energy, and cost savings that can be achieved in a commercial laundry through the use of a wastewater recycling and heat recovery system. Cost savings are achieved through reductions in water use, reduction in sewage charges, reductions in water heating energy, and potential reductions in water treatment chemicals. This report provides an economic analysis of the impact of capital investment, daily consumption, and local utility rates on the payback period.

Garlick, T.F.; Halverson, M.A.; Ledbetter, M.R.

1996-09-01T23:59:59.000Z

275

Life Cycle Assessment of Amonix 7700 HCPV Systems  

SciTech Connect

We estimated the energy payback time (EPBT) and greenhouse gas emissions (GHGs) in the life cycle of the Amonix high-concentration photovoltaic (HCPV) system with III-V solar cells. For a location in the southwest United States, the Amonix 7700 has an EPBT of only 0.86 yrs and GHG emissions of 24g CO{sub 2}-eq./kWh we expect further decreases in both by 2011.

Fthenakis, V.; Kim, H.

2010-04-07T23:59:59.000Z

276

Monitored performance of residential geothermal heat pumps in central Texas and Southern Michigan  

SciTech Connect

This report summarizes measured performance of residential geothermal heat pumps (GHP`s) that were installed in family housing units at Ft. Hood, Texas and at Selfridge Air National Guard base in Michigan. These units were built as part of a joint Department of Defense/Department of Energy program to evaluate the energy savings potential of GHP`s installed at military facilities. At the Ft. Hood site, the GHP performance was compared to conventional forced air electric air conditioning and natural gas heating. At Selfridge, the homes under test were originally equipped with electric baseboard heat and no air conditioning. Installation of the GHP systems at both sites was straightforward but more problems and costs were incurred at Selfridge because of the need to install ductwork in the homes. The GHP`s at both sites produced impressive energy savings. These savings approached 40% for most of the homes tested. The low cost of energy on these bases relative to the incremental cost of the GHP conversions precludes rapid payback of the GHP`s from energy savings alone. Estimates based on simple payback (no inflation and no interest on capital) indicated payback times from 15 to 20 years at both sites. These payback times may be reduced by considering the additional savings possible due to reduced maintenance costs. Results are summarized in terms of 15 minute, hourly, monthly, and annual performance parameters. The results indicate that all the systems were working properly but several design shortcomings were identified. Recommendations are made for improvements in future installations at both sites.

Sullivan, W.N.

1997-11-01T23:59:59.000Z

277

Assessing the Costs and Benefits of the Superior Energy Performance Program Presentation  

Energy.gov (U.S. Department of Energy (DOE))

Nine companies certified under the U.S. Department of Energy (DOE) Superior Energy Performance (SEP) program have shown an average energy performance improvement of 10% in the first 18 months of implementing SEP with an average payback of 1.7 years. These findings and other results were presented at the July 2013 Summer Study on Energy Efficiency in Industry hosted by the American Council for an Energy-Efficient Economy

278

Case Study- The Challenge: Saving Energy at a Sewage Lift Station Through Pump System Modifications  

Energy.gov (U.S. Department of Energy (DOE))

This case study explores how the City of Milford, Connecticut saved energy at the Welches Point sewage lift station. By adding a small booster pump to the sewage pumping system, the city reduced the station's annual energy consumption by 36,096 kWh, or more than 15 percent, which resulted in annual savings of $2,960. With a total implementation cost of $16,000, the project yielded a simple payback of 5.4 years.

279

Texas Tech University Energy Savings Program January 2009 Update  

E-Print Network (OSTI)

costs and campus square footage. For the first quarter of FY09 the campus consumed 42.07 kbtu/sq ft,500 Total 45.69 42.07 Down 7.9% $ 348,000 Page 1 of 4 January 2009 Energy Report #12;Since RP 49 first went Purchase Program for four energy projects. 1) AHU VFD Project ­ Estimated cost of $600,000 with a payback

Zhuang, Yu

280

Compressed Air Systems Audits - Why? And How?  

E-Print Network (OSTI)

% of the compressed air costs, most with little or no capital investment. Almost always, in the event of a capital outlay, energy savings alone afford less than one-year payback. Many energy utility companies energetically support these efforts, and some.... Secondly, join us in the definition of compressed air as a system, the totality of which is comprised of the Supply Side and the Demand Side. The Supply Side is the compressors and their controls, receivers (primary storage tanks), aftercoolers, filters...

Kemp, H. L.

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Thermal Energy Storage for Vacuum Precoolers  

E-Print Network (OSTI)

radically creating high peak demands and low load factors. An ice bank thermal energy storage (TES) and ice water vapor condenser were installed. The existing equipment and TES system were computer monitored to determine energy consumption and potential... efficiency at night. The ice bank thermal energy storage system has a 4.4 year simple payback. While building ice, the refrigeration system operated at a 6.26 Coefficient of Performance (COP). The refrigeration system operated more efficiently at night...

Nugent, D. M.

282

Economic analysis of residential combined solar-heating and hot-water systems  

SciTech Connect

A brief description of a typical residential solar heating and hot water system and typical cost and performance information are presented. The monthly costs and savings of the typical system are discussed. The economic evaluation of solar residential systems is presented in increasing levels of complexity. Utilizing a typical system, the effective interest rate that the purchaser of a system would receive on money invested is shown for all regions of the country. The importance of numerous variables that can make a significant difference on the economics of the system is described so that it can be determined whether the typical system economics are compatible with the particular situation. Methods for calculating the payback period for any non-typical solar system are described. This calculated payback period is then shown to be related to the effective interest rate that the purchaser of the system would receive for a typical economic condition. A nomagraph is presented that performs this calculation. Finally, a method is presented to calculate the effective interest rate that the solar system would provide. It is shown how to develop the relationship between payback period and the effective interest rate for any economic scenario.

None

1980-09-23T23:59:59.000Z

283

Cab Heating and Cooling  

SciTech Connect

Schneider National, Inc., SNI, has concluded the Cab Heating and Cooling evaluation of onboard, engine off idling solutions. During the evaluation period three technologies were tested, a Webasto Airtronic diesel fired heater for cold weather operation, and two different approaches to cab cooling in warm weather, a Webasto Parking Cooler, phase change storage system and a Bergstrom Nite System, a 12 volt electrical air conditioning approach to cooling. Diesel fired cab heaters were concluded to provide adequate heat in winter environments down to 10 F. With a targeted idle reduction of 17%, the payback period is under 2 years. The Webasto Parking Cooler demonstrated the viability of this type of technology, but required significant driver involvement to achieve maximum performance. Drivers rated the technology as ''acceptable'', however, in individual discussions it became apparent they were not satisfied with the system limitations in hot weather, (over 85 F). The Bergstrom Nite system was recognized as an improvement by drivers and required less direct driver input to operate. While slightly improved over the Parking Cooler, the hot temperature limitations were only slightly better. Neither the Parking Cooler or the Nite System showed any payback potential at the targeted 17% idle reduction. Fleets who are starting at a higher idle baseline may have a more favorable payback.

Damman, Dennis

2005-10-31T23:59:59.000Z

284

Energy audit of three energy-conserving devices in a steel-industry demonstration program. Task I. Hague forge furnaces. Final report  

SciTech Connect

A program to demonstrate to industry the benefits of installing particular types of energy-conserving devices and equipment was carried out. One of these types of equipment and the results obtained under production conditions in commercial plants are described. The equipment under consideration includes improved forge furnaces and associated heat-recovery components. They are used to heat steel to about 2300 F prior to hot forging. The energy-conserving devices include improved insulation, automatic air-fuel ratio control, and a ceramic recuperator that recovers heat from hot combustion gases and delivers preheated air to high-temperature recirculating burners. Twelve Hague furnaces and retrofit packages were purchased and installed by eleven host forge shops that agree to furnish performance data for the purpose of demonstrating the energy and economic savings that can be achieved in comparison with existing equipment. Fuel savings were reported by comparing the specific energy consumption (Btu's per pound of steel heated) for each Hague furnace with that of a comparison furnace. Economic comparisons were made using payback period based on annual after-tax cash flow. Payback periods for the Hague equipment varied from less than two years to five years or more. In several cases, payback times were high only because the units were operated at a small fraction of their available capacity.

Lownie, H.W.; Holden, F.C.

1982-06-01T23:59:59.000Z

285

A Technical and Economic Potential of Solar Energy Application with Feed-in Tariff Policy in Indonesia  

Science Journals Connector (OSTI)

Abstract This paper presents a technical and economic potential of Solar Energy Application in Indonesia. Indonesia consists of thousands islands. Meanwhile, according to the latest data from the Department of Energy and Mineral Resources in 2012, Indonesia's electrification ratio is only around 74%. Renewable energy especially solar energy is one of the most potential energy sources as Indonesia lies in the equator line where the daylight is abundant and available throughout the year. The solar energy technologys is also eco-friendly and its application has the potential to reduce the greenhouse gas emission. A review of solar energy potential in Indonesia based on the solar resource data is presented. Estimation of solar resource in Indonesia was done using solar radiation data from NASA Surface Meteorology and Solar Energy (SSE). Retscreen software was used for all of the calculation in the study. It is found that the proposed system can generate electricity annually vary from 0.46 GWh/year in Denpasar to 217 GWh/year in Pontianak. This paper also calculates the economic viability through pre-tax IRR and simple payback indicator. It was observed that the highest IRR was observed in Makassar and the lowest IRR was observed in Banjarmasin. Meanwhile, it can be observed that Makassar got the shortest payback period for 11 years and Banjarmasin got the longest payback period of 17.6 years. From the side of environmental impact, the proposed system can reduce the GHG emission up to 243252 tons per year in particular selected location.

Andhy Muhammad Fathoni; N. Agya Utama; Mandau A. Kristianto

2014-01-01T23:59:59.000Z

286

Production costs and supply of biomass by U.S. Region  

SciTech Connect

The Biofuels Feedstock Development Program has attempted to estimate the cost of producing dedicated energy crops for several regions of the United States. Switchgrass and hybrid poplar have been chosen as representative herbaceous and woody crop species for the estimation. A full economic cost accounting approach is used. This means that not only are out-of-pocket cash expenses (e.g. fertilizers, chemicals, seeds, fuel, repairs) estimated, but fixed costs (e.g., overhead, taxes) and the costs of owned resources (e.g., producer`s own labor, equipment depreciation, land values) are also estimated as part of the cost of producing dedicated energy crops. The costs are estimated as enterprise budgets which means that costs of producing energy crops are estimated as separate entities, and not estimated in context of the entire farm management structure. Competitiveness of energy crops with conventional crops vary by region. Breakeven prices are regional averages. Breakeven prices for poplar are higher than for switchgrass in all regions, in large part due to the higher cost of producing poplars.

Walsh, M.

1995-07-01T23:59:59.000Z

287

HVDC power transmission technology assessment  

SciTech Connect

The purpose of this study was to develop an assessment of the national utility system`s needs for electric transmission during the period 1995-2020 that could be met by future reduced-cost HVDC systems. The assessment was to include an economic evaluation of HVDC as a means for meeting those needs as well as a comparison with competing technologies such as ac transmission with and without Flexible AC Transmission System (FACTS) controllers. The role of force commutated dc converters was to be assumed where appropriate. The assessment begins by identifying the general needs for transmission in the U.S. in the context of a future deregulated power industry. The possible roles for direct current transmission are then postulated in terms of representative scenarios. A few of the scenarios are illustrated with the help of actual U.S. system examples. non-traditional applications as well as traditional applications such as long lines and asynchronous interconnections are discussed. The classical ``break-even distance`` concept for comparing HVDC and ac lines is used to assess the selected scenarios. The impact of reduced-cost converters is reflected in terms of the break-even distance. This report presents a comprehensive review of the functional benefits of HVDC transmission and updated cost data for both ac and dc system components. It also provides some provocative thoughts on how direct current transmission might be applied to better utilize and expand our nation`s increasingly stressed transmission assets.

Hauth, R.L.; Tatro, P.J.; Railing, B.D. [New England Power Service Co., Westborough, MA (United States); Johnson, B.K.; Stewart, J.R. [Power Technologies, Inc., Schenectady, NY (United States); Fink, J.L.

1997-04-01T23:59:59.000Z

288

The economics of heat mining: An analysis of design options and performance requirements of hot dry rock (HDR) geothermal power systems  

SciTech Connect

A generalized economic model was developed to predict the breakeven price of HDR generated electricity. Important parameters include: (1) resource quality--average geothermal gradient ({sup o}C/km) and well depth, (2) reservoir performance--effective productivity, flow impedance, and lifetime (thermal drawdown rate), (3) cost components--drilling, reservoir formation, and power plant costs and (4) economic factors--discount and interest rates, taxes, etc. Detailed cost correlations based on historical data and results of other studies are presented for drilling, stimulation, and power plant costs. Results of the generalized model are compared to the results of several published economic assessments. Critical parameters affecting economic viability are drilling costs and reservoir performance. For example, high gradient areas are attractive because shallower well depths and/or lower reservoir production rates are permissible. Under a reasonable set of assumptions regarding reservoir impedance, accessible rock volumes and surface areas, and mass flow rates (to limit thermal drawdown rates to about 10 C per year), predictions for HDR-produced electricity result in competitive breakeven prices in the range of 5 to 9 cents/kWh for resources having average gradients above 50 C/km. Lower gradient areas require improved reservoir performance and/or lower well drilling costs.

Tester, Jefferson W.; Herzog, Howard J.

1991-01-25T23:59:59.000Z

289

Not-In-Kind Technologies for Residential and Commercial Unitary Equipment  

SciTech Connect

This project was initiated by the Department of Energy in response to a request from the HVAC industry for consolidated information about alternative heating and cooling cycles and for objective comparisons of those cycles in space conditioning applications. Twenty-seven different heat pumping technologies are compared on energy use and operating costs using consistent operating conditions and assumptions about component efficiencies for all of them. This report provides a concise summary of the underlying principals of each technology, its advantages and disadvantages, obstacles to commercial development, and economic feasibility. Both positive and negative results in this study are valuable; the fact that many of the cycles investigated are not attractive for space conditioning avoids any additional investment of time or resources in evaluating them for this application. In other cases, negative results in terms of the cost of materials or in cycle efficiencies identify where significant progress needs to be made in order for a cycle to become commercially attractive. Specific conclusions are listed for many of the technologies being promoted as alternatives to electrically-driven vapor compression heat pumps using fluorocarbon refrigerants. Although reverse Rankine cycle heat pumps using hydrocarbons have similar energy use to conventional electric-driven heat pumps, there are no significant energy savings due to the minor differences in estimated steady-state performance; higher costs would be required to accommodate the use of a flammable refrigerant. Magnetic and compressor-driven metal hydride heat pumps may be able to achieve efficiencies comparable to reverse Rankine cycle heat pumps, but they are likely to have much higher life cycle costs because of high costs for materials and peripheral equipment. Both thermoacoustic and thermionic heat pumps could have lower life cycle costs than conventional electric heat pumps because of reduced equipment and maintenance costs although energy use would be higher. There are strong opportunities for gas-fired heat pumps to reduce both energy use and operating costs outside of the high cooling climates in the southeast, south central states, and the southwest. Diesel and IC (Otto) engine-driven heat pumps are commercially available and should be able to increase their market share relative to gas furnaces on a life cycle cost basis; the cost premiums associated with these products, however, make it difficult to achieve three or five year paybacks which adversely affects their use in the U.S. Stirling engine-driven and duplex Stirling heat pumps have been investigated in the past as potential gas-fired appliances that would have longer lives and lower maintenance costs than diesel and IC engine-driven heat pumps at slightly lower efficiencies. These potential advantages have not been demonstrated and there has been a low level of interest in Stirling engine-driven heat pumps since the late 1980's. GAX absorption heat pumps have high heating efficiencies relative to conventional gas furnaces and are viable alternatives to furnace/air conditioner combinations in all parts of the country outside of the southeast, south central states, and desert southwest. Adsorption heat pumps may be competitive with the GAX absorption system at a higher degree of mechanical complexity; insufficient information is available to be more precise in that assessment.

Fischer, S.K.

2001-01-11T23:59:59.000Z

290

Development/Demonstration of an Advanced Oxy-Fuel Front-End System  

SciTech Connect

Owens Corning and other glass manufacturers have used oxy-fuel combustion technology successfully in furnaces to reduce emissions, increase throughput, reduce fuel consumption and, depending on the costs of oxygen and fuel, reduce energy costs. The front end of a fiberglass furnace is the refractory channel system that delivers glass from the melter to the forming process. After the melter, it is the second largest user of energy in a fiberglass plant. A consortium of glass companies and suppliers, led by Owens Corning, was formed to develop and demonstrate oxy/fuel combustion technology for the front end of a fiberglass melter, to demonstrate the viability of this energy saving technology to the U.S. glass industry, as a D.O.E. sponsored project. The project goals were to reduce natural gas consumption and CO2 green house gas emissions by 65 to 70% and create net cost savings after the purchase of oxygen to achieve a project payback of less than 2 years. Project results in Jackson, TN included achieving a 56% reduction in gas consumption and CO2 emissions. A subsequent installation in Guelph ON, not impacted by unrelated operational changes in Jackson, achieved a 64% reduction. Using the more accurate 64% reduction in the payback calculation yielded a 2.2 year payback in Jackson. The installation of the demonstration combustion system saves 77,000 DT/yr of natural gas or 77 trillion Btu/yr and eliminates 4500 tons/yr of CO2 emissions. This combustion system is one of several energy and green house gas reduction technologies being adopted by Owens Corning to achieve aggressive goals relating to the companys global facility environmental footprint.

Mighton, Steven, J.

2007-08-06T23:59:59.000Z

291

Microsoft PowerPoint - Georgetown lecture 3-29-10 final for distribution.pptx  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Whittington Lecture Whittington Lecture Georgetown Public Policy Institute 29 March 2010 "Predictions are hard to make, I will make two predictions: especially about the future." 1. The price of oil will be higher in the coming decades. 2. We will live in a carbon constrained world. "Breakeven" Price of Oil (Dollars/Barrel) Conventional oil is 30% of world oil reserves. Production costs of unconventional oil are much higher. Source: International Energy Agency Unconventional Oil Energy Use: 1980 - Present and Projections to 2030 Source: EIA International Energy Outlook 2009 Climate Change is real: the temperature record from 1880 - 2007 Source NASA: http://data.giss.nasa.gov/gistemp/graphs/ Concentration of Greenhouse gases The beginning of the Industrial

292

Microsoft PowerPoint - Proceedings Cover Sheets  

NLE Websites -- All DOE Office Websites (Extended Search)

Evaluating CO2 Capture Options for a Evaluating CO2 Capture Options for a Fluidized Catalytic Cracker Regenerator May 8-11, 2006 * Hilton Alexandria Mark Center * Alexandria, Virginia George F. Schuette, Edward G. Latimer, Joseph B. Cross and Etop Esen ConocoPhillips Company Outline Refinery CO2 Emissions Fluidized Catalytic Cracker (FCC) Emissions Flue Gas CO2 Capture Technologies Process Models: MEA vs. Solid Adsorbent Cost Breakeven Properties Summary CO2 Emissions from Oil & Gas Refining 4 % 223 US Refineries 98 % 5,870 Total 32 % 1,875 Transportation 28 % 1,666 Industrial 21 % 1,215 Residential 17 % 1,026 Commercial 2003 US Emissions by Sector (MM tonne) CO2 Emission Factor: 40 M tonne CO2/MM bbl crude oil Energy Information Administration Emissions of Greenhouse Gases in the United States 2003

293

Regional Variation in Residential Heat Pump Water Heater Performance in the United States  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Regional Variation in Residential Heat Pump Water Heater Performance in the US Jeff Maguire 4/30/13 Outline * Why HPWHs? * US Water Heating Market * Overview of HPWHs * Model Description * Results o HPWH Performance o Energy Savings Potential o Breakeven Cost 2 Heat Pump Water Heaters Save $300 a year over standard electric? Save $100 a year over standard gas? Heat Pump Electric Gas 3 Questions about HPWHs * Are HPWHs a good replacement for typical gas and electric storage water heaters? o In different locations across the country? o In conditioned/unconditioned space? o Source energy savings?

294

Investment Timing and Capacity Choice for Small-Scale Wind PowerUnder Uncertainty  

SciTech Connect

This paper presents a method for evaluation of investments in small-scale wind power under uncertainty. It is assumed that the price of electricity is uncertain and that an owner of a property with wind resources has a deferrable opportunity to invest in one wind power turbine within a capacity range. The model evaluates investment in a set of projects with different capacity. It is assumed that the owner substitutes own electricity load with electricity from the wind mill and sells excess electricity back to the grid on an hourly basis. The problem for the owner is to find the price levels at which it is optimal to invest, and in which capacity to invest. The results suggests it is optimal to wait for significantly higher prices than the net present value break-even. Optimal scale and timing depend on the expected price growth rate and the uncertainty in the future prices.

Fleten, Stein-Erik; Maribu, Karl Magnus

2004-11-28T23:59:59.000Z

295

Cost reductions in absorption chillers. Final report, June 1984-May 1985  

SciTech Connect

Absorption chillers have great difficulty competing with the electric-driven compression alternative, due in part to modest operating efficiencies and largely to high first costs. This project is an assessment of the possibility of lowering the costs of absorption chillers dramatically by the use of low material intensity in the design of a new generation of these machines. Breakeven costs for absorption chillers, their heat exchangers and heat exchanger materials were established which will allow commercial success. Polymeric and metallic materials appropriate to particular components and which meet the cost goals were identified. A subset of these materials were tested and ordered by success in tolerating conditions and materials found in absorption chiller applications. Conceptual designs which indicate the practicality of the low material intensity approach were developed. The work reported here indicates that there is a high probability that this apporach will be successful.

Leigh, R.W.

1986-05-01T23:59:59.000Z

296

An Evaluation of the NaS Battery Storage Potential for Providing Regulation Service in California  

SciTech Connect

Sodium sulfur (NaS) batteries can provide energy storage, real-time dispatch, regulation, frequency response, and other essential services to the power grids. This study presents the technical characteristics, modeling approach, methodologies, and results for providing regulation services in the California Independent System Operator (CAISO) market. Two different scenarios were studied and compared: a scenario without intermittent renewable-energy resource penetration (base case) and a scenario with significant renewable-energy resource penetration (including wind) reaching 20% of CAISOs energy supply. In addition, breakeven cost analyses were developed for four cases. Based on the results of the technical and cost analyses, the opportunities for the NaS battery providing the regulation services are discussed, design improvements for the batterys physical characteristics are recommended, and modifications of the regulation signals sent to NaS batteries are proposed.

Lu, Ning; Weimar, Mark R.; Makarov, Yuri V.; Loutan, Clyde

2011-03-23T23:59:59.000Z

297

Test cell modeling and optimization for FPD-II  

SciTech Connect

The Fusion Power Demonstration, Configuration II (FPD-II), will ba a DT burning tandem mirror facility with thermal barriers, designed as the next step engineering test reactor (ETR) to follow the tandem mirror ignition test machines. Current plans call for FPD-II to be a multi-purpose device. For approximately the first half of its lifetime, it will operate as a high-Q ignition machine designed to reach or exceed engineering break-even and to demonstrate the technological feasibility of tandem mirror fusion. The second half of its operation will focus on the evaluation of candidate reactor blanket designs using a neutral beam driven test cell inserted at the midplane of the 90 m long cell. This machine called FPD-II+T, uses an insert configuration similar to that used in the MFTF-..cap alpha..+T study. The modeling and optimization of FPD-II+T are the topic of the present paper.

Haney, S.W.; Fenstermacher, M.E.

1985-04-10T23:59:59.000Z

298

Mobile Biomass Pelletizing System  

SciTech Connect

This grant project examines multiple aspects of the pelletizing process to determine the feasibility of pelletizing biomass using a mobile form factor system. These aspects are: the automatic adjustment of the die height in a rotary-style pellet mill, the construction of the die head to allow the use of ceramic materials for extreme wear, integrating a heat exchanger network into the entire process from drying to cooling, the use of superheated steam for adjusting the moisture content to optimum, the economics of using diesel power to operate the system; a break-even analysis of estimated fixed operating costs vs. tons per hour capacity. Initial development work has created a viable mechanical model. The overall analysis of this model suggests that pelletizing can be economically done using a mobile platform.

Thomas Mason

2009-04-16T23:59:59.000Z

299

Preliminary Neutronic Study of D2O-cooled High Conversion PWRs  

SciTech Connect

This paper presents a preliminary neutronics analysis of tight-pitch D2O-cooled high-conversion PWRs loaded with MOX fuel aiming at high Pu conversion and negative void coefficient. SCALE6.1 has been exclusively utilized for this study. The analyses are performed in two separate parts. The first part of this paper investigates the performance of axial and internal blankets and seeks break-even or near-breeder core even without the presence of radial blankets. The second part of this paper performs sensitivity and uncertainty analyses of integral parameters (keff and void coefficient) for selected systems in order to analyze the characters of this high-conversion PWR from different aspects.

Hikaru Hiruta; Gilles Youinou

2013-10-01T23:59:59.000Z

300

Vectren Energy Delivery of Indiana (Electric) - Commercial New Construction  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Vectren Energy Delivery of Indiana (Electric) - Commercial New Vectren Energy Delivery of Indiana (Electric) - Commercial New Construction Rebates (Indiana) Vectren Energy Delivery of Indiana (Electric) - Commercial New Construction Rebates (Indiana) < Back Eligibility Commercial Fed. Government Industrial Local Government Nonprofit State Government Savings Category Home Weatherization Commercial Weatherization Heating & Cooling Commercial Heating & Cooling Cooling Other Heat Pumps Appliances & Electronics Commercial Lighting Lighting Windows, Doors, & Skylights Maximum Rebate Custom/HVAC Systems: $100,000 or 50% of the total project cost Incentive cannot buy down project below 1.5 years payback. Program Info State Indiana Program Type Utility Rebate Program Rebate Amount HVAC Systems (New Construction): $0.12/kWh reduced

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Building Energy Software Tools Directory: United Resources Group Lighting  

NLE Websites -- All DOE Office Websites (Extended Search)

United Resources Group Lighting Conservation United Resources Group Lighting Conservation Comprehensive lighting software designed to analyze existing lighting systems and provide alternative systems that will offer energy-savings retrofit options with corresponding total wattage reduction, percent reduction, kilowatt hour savings, maintenance savings, net air conditioning savings, and a corresponding cost and dollar savings total with payback. Screen Shots Keywords Quantify, Lighting Conservation, Cost and Savings Validation/Testing Regular updates of wattage table. Expertise Required Some familiarity with Microsoft Excel spreadsheets and the codes used to describe existing equipment which is in place at a site. Users 1 Audience Energy Efficiency Consultants, Energy Contractors, Architects, and Building

302

Liberty Utilities (Electric) - Commercial Energy Efficiency Incentive  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Liberty Utilities (Electric) - Commercial Energy Efficiency Liberty Utilities (Electric) - Commercial Energy Efficiency Incentive Programs Liberty Utilities (Electric) - Commercial Energy Efficiency Incentive Programs < Back Eligibility Commercial Industrial Local Government Schools Savings Category Heating & Cooling Commercial Heating & Cooling Heating Cooling Manufacturing Other Construction Heat Pumps Appliances & Electronics Commercial Lighting Lighting Maximum Rebate Custom Incentives: amount that buys down the cost of the project to a 1 year simple payback Program Info State New Hampshire Program Type Utility Rebate Program Rebate Amount Custom Retrofits and Engineering Studies: 50% of project cost Fluorescent Lighting: $10-$50 High Bay: $70 or $100 (retrofit) Metal Halide: $50 or $70 LED Exit Signs: $12 LED Traffic Signals: $50

303

The Second US-China Energy Efficiency Forum: Energy Management Standards and Implementation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Standards Standards and Implementation James Quinn U.S. Department of Energy 1 DOE's Industrial Technologies Programivers Solutions Help plants save energy today by assessing opportunities and facilitating adoption of best energy management practices Develop advanced technologies addressing the top energy savings opportunities across industry Research & Development Technical Assistance Improve national energy security, climate, environment, and economic competitiveness by transforming the way U.S. industry uses energy. 2 * Time and again, industrial energy efficiency has been demonstrated to be cost effective while having a positive effect on productivity * Despite this, energy efficiency improvements with very favorable payback periods often do not get implemented

304

Technology Deployment List | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Deployment » Technology Deployment List Deployment » Technology Deployment List Technology Deployment List October 8, 2013 - 2:44pm Addthis Technology Ranking Criteria Technologies featured in the Technology Deployment List were ranked by: Federal Impact: Combination of energy savings potential and applicability in the Federal market (50% weighting) Cost Effectiveness: Relative cost of the implementation and average expected return typically reported in case studies as simple payback period (30% weighting) Probability of Success: Combination of the qualitative characteristics scored separately and averaged to determine probability of success. Criteria include strength of supply chain, knowledge base, implementation difficulty, and customer acceptance (20% weighting). The Federal Energy Management Program's (FEMP) Technology Deployment List

305

Pacific Power - FinAnswer Express | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pacific Power - FinAnswer Express Pacific Power - FinAnswer Express Pacific Power - FinAnswer Express < Back Eligibility Agricultural Commercial Construction Industrial Institutional Local Government Nonprofit State Government Savings Category Other Home Weatherization Commercial Weatherization Heating & Cooling Cooling Commercial Heating & Cooling Appliances & Electronics Construction Design & Remodeling Manufacturing Heat Pumps Heating Commercial Lighting Lighting Water Heating Windows, Doors, & Skylights Maximum Rebate Lighting: 70% of cost Incentive amount cannot reduce the project simple payback below one year Program Info State District of Columbia Program Type Utility Rebate Program Rebate Amount Lighting T-8 Lighting Fixtures: $0.25-$21 T-5 Lighting Fixtures: $0.25-$20 Cold Cathode: $5

306

Unitil - Commercial and Industrial Energy Efficiency Programs | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Unitil - Commercial and Industrial Energy Efficiency Programs Unitil - Commercial and Industrial Energy Efficiency Programs Unitil - Commercial and Industrial Energy Efficiency Programs < Back Eligibility Commercial Construction Industrial Institutional Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Manufacturing Other Construction Appliances & Electronics Commercial Lighting Lighting Maximum Rebate New Construction: 75% of incremental cost Retro-fit: 35% of installed cost Custom: 1 year payback Program Info State New Hampshire Program Type Utility Rebate Program Rebate Amount Small Business and Multifamily: free technical assessment and % of installed cost for recommended measures Custom: 35% of cost Fluorescent Fixtures: $25 Lighting Sensors: $25-$50 LED Traffic Light: $60-$80 Motor Retrofits: $75-$3295

307

Wind Energy Finance (WEF): An Online Calculator for Economic Analysis of Wind Projects (Double-Gatefold Brochure)  

Wind Powering America (EERE)

How Does WEF Work? How Does WEF Work? Inputs The user enters data about the project, including: * General assumptions * Capital costs * Operating expenses * Financing assumptions * Tax assumptions * Economic assumptions * Financial constraining assumptions. Extensive help notes describe each input and provide reasonable default values. Outputs * Minimum energy payment to meet financial criteria * Levelized cost of energy * Payback period * Net present value * Internal rate of return * Summary and detailed cash flows. As an alternative option, if the user enters a first-year energy payment, the program will calculate the rate of return, coverage ratios, etc. Wind Energy Finance (WEF): An Online Calculator for Economic Analysis of Wind Projects The National Renewable Energy Laboratory created

308

National Grid (Electric) - Large Commercial Energy Efficiency Incentive  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

National Grid (Electric) - Large Commercial Energy Efficiency National Grid (Electric) - Large Commercial Energy Efficiency Incentive Programs National Grid (Electric) - Large Commercial Energy Efficiency Incentive Programs < Back Eligibility Commercial Industrial Institutional Local Government Multi-Family Residential Retail Supplier Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Other Construction Heat Pumps Appliances & Electronics Commercial Lighting Lighting Maximum Rebate Custom Incentives: 50% of engineering studies and total costs until project reaches a 1.5 year simple payback. Program Info State Rhode Island Program Type Utility Rebate Program Rebate Amount Schools and New Buildings Custom Incentives: 75% of additional cost for efficiency upgrades AC/Heat Pumps: $30 - $125/ton

309

JEA - Commercial Energy Efficiency Rebate Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

JEA - Commercial Energy Efficiency Rebate Program JEA - Commercial Energy Efficiency Rebate Program JEA - Commercial Energy Efficiency Rebate Program < Back Eligibility Commercial Industrial Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Appliances & Electronics Home Weatherization Construction Commercial Weatherization Design & Remodeling Other Heat Pumps Heating Commercial Lighting Lighting Insulation Water Heating Maximum Rebate Custom: Rebates capped at 50% of cost with a 2.0 year payback General/Custom: $300,000 per customer per program year Program Info State Florida Program Type Utility Rebate Program Rebate Amount Chillers: $5/ton (additional rebates available for units that exceed minimum efficiency requirement) Three Phase AC: $25 - $40/ton Three Phase Heat Pump: $20 - $30/ton

310

Geothermal utilization at Castle Oaks Subdivision, Castle Rock, Colorado  

SciTech Connect

Designs of geothermal systems for using warm water from four aquifers of the Denver Basin are presented. Advantages of using heat pumps with the geothermal resource are discussed. Two design cases-one with separate heat load and heat pump, and the other with the heat pump and heat load located at the well site-are evaluated in terms of pump costs, operating costs, and payback periods. The 20-year delivered energy costs for the two geothermal systems would be slightly less than those for natural gas ($5.64 to $6.42 versus $6.70 per million Btu).

Garing, K.L.; Coury, G.E.; Goering, S.W.

1982-04-01T23:59:59.000Z

311

Rural Electrification Through Solar and Wind Hybrid System: A Self Sustained Grid Free Electric Power Source  

Science Journals Connector (OSTI)

In India, more than 200 million people live in rural areas without access to grid-connected power. A convenient & cost-effective solution would be hybrid power systems which can reduce dependency on grid supply, improve reliability. For a typical domestic load a solar wind hybrid system is designed with charge controller to charge a conventional battery. To optimize system efficiency, a simple algorithm is developed for system sizing. Total cost of unit is calculated using life cycle cost analysis and payback peri

Vadirajacharya; P.K. Katti

2012-01-01T23:59:59.000Z

312

New Water Booster Pump System Reduces Energy Consumption by 80 Percent and Increases Reliability  

Energy.gov (U.S. Department of Energy (DOE))

This case study outlines how General Motors (GM) developed a highly efficient pumping system for their Pontiac Operations Complex in Pontiac, Michigan. In short, GM was able to replace five original 60- to 100-hp pumps with three 15-hp pumps whose speed could be adjusted to meet plant requirements. As a result, the company reduced pumping system energy consumption by 80 percent (225,100 kWh per year), saving an annual $11,255 in pumping costs. With a capital investment of $44,966 in the energy efficiency portion of their new system, GM projected a simple payback of 4 years.

313

Hospital remedies architect's lighting overdesign for $22k: installs current limiters  

SciTech Connect

St. Luke's Hospital in Racine, Wisconsin is spending $22,000 to install current limiters in the fluorescent lamps of a new wing after finding that the architectural firm overdesigned the lighting fixtures so much that the hospital's lighting expenses were 50% higher than necessary. The hospital expects an 8-month payback on the current limiters. The hospital's corridor lighting reached 45-55 footcandles (fc), when only three fc are required for emergency lighting and 15 for corridor lighting. Representatives of the architectural firm argued that the design did not exceed state wattage requirements.

Ponczak, G.

1984-10-29T23:59:59.000Z

314

EMS control chosen instead of refrigeration, HVAC upgrade  

SciTech Connect

A Wisconsin supermarket decided on the basis of costs to install an energy management system (EMS) to improve the store's energy efficiency rather than invest in new refrigerating equipment at this time. When the next remodeling occurs in two years, the store will purchase new equipment using energy savings from the EMS to help defray the costs. The store selected an EMS with distributed processing that can expand to control new equipment. It expects a 22% drop in energy bills and a two-year payback of the $50,000 investment. Details of the system's functions describe some of the 53 control points.

Watson, F.

1984-05-07T23:59:59.000Z

315

Development and Testing of a Screw Compressor Supermarket Refrigeration System: Phase II, Final Report.  

SciTech Connect

A laboratory prototype screw compressor refrigeration system was designed, fabricated and tested under various evaporator and ambient conditions. The design is based on a Dunham-Bush vertical hermetic screw compressor and other standard refrigeration components. Results indicate that a screw compressor rack with vapor injection can increase the thermodynamic efficiency of low temperature refrigeration in supermarkets by 20 to 28% compared to multiple reciprocating compressor racks. The payback period of the screw compressor refrigeration system relative to multiple reciprocating compressor systems is 1.1 to 1.5 years and the net present value savings range from 15 to 22 thousand dollars.

Borhanian, H. Hamed; Toscano, William M.; Lee, Kang P.

1987-02-01T23:59:59.000Z

316

New compressor systems seen paring refrigeration costs 15%  

SciTech Connect

Manufacturers claim that a parallel arrangement of three to five compressors of varying capacities can lower a store's refrigerating costs over 15%. The energy savings come from the more-precise matching of compressor capacity with refrigeration demand. The 500 stores that have installed uneven compressor systems are achieving a payback in under a year. Because it is important for controls to match a system for maximum efficiency, manufacturers are introducing tailor-made microprocessor controllers. A table summarizes three supermarket case histories. (DCK)

Barber, J.

1983-05-09T23:59:59.000Z

317

21 - Life cycle assessment (LCA) of windows and window materials  

Science Journals Connector (OSTI)

Abstract: Windows are a significant component in sustainable buildings in both the impacts caused by their material life cycles and by their influence on the performance of a building over its service life. Life cycle assessment (LCA) studies have compared the impacts of different framing materials with mixed results. LCA has also been used to estimate the environmental payback of higher manufacturing impacts from producing better performing windows. Future sustainable window selection should make use of standardized LCA data for windows and utilize advanced technologies to optimize window performance.

J. Salazar

2014-01-01T23:59:59.000Z

318

12 - Life cycle assessment (LCA) of building thermal insulation materials  

Science Journals Connector (OSTI)

Abstract: In this chapter thermal insulation materials and types of plaster and their properties are described. The impact of the selected thermal insulation materials and plaster on the environment is assessed using LCA analysis. A method of assessing the ecological and economic benefits resulting from thermal insulation of the external walls of buildings is proposed. On this basis, ecological and economic payback periods for thermal insulation are defined as well as the ecological efficiency of thermal insulation. The conducted analyses conclude that thermal insulation of the external walls of buildings is environmentally favourable.

R. Dylewski; J. Adamczyk

2014-01-01T23:59:59.000Z

319

Life Cycle Assessment of a Parabolic Trough Concentrating Solar Power Plant and the Impacts of Key Design Alternatives  

Science Journals Connector (OSTI)

To inform capacity expansion decisions, hybrid life cycle assessment is used to evaluate a reference design of a parabolic trough concentrating solar power (CSP) facility located in Daggett, CA, along four sustainability metrics: life cycle (LC) greenhouse gas (GHG) emissions, water consumption, cumulative energy demand (CED), and energy payback time (EPBT). ... Power plant system: components typically associated with the power block (e.g., turbine generator set), in addition to other balance-of-plant components, such as buildings, roads, and parking lots. ... The majority of the remaining water consumption is attributed to water consumed during the manufacturing phase (10% of LC or 0.47 L/kWh). ...

John J. Burkhardt; III; Garvin A. Heath; Craig S. Turchi

2011-02-23T23:59:59.000Z

320

Thermal and economical analysis of an underground seasonal storage heating system in Thrace  

Science Journals Connector (OSTI)

Economical analysis of the solar heating system with seasonal storage, which was established in Edirne (4139?54?N) in order to provide the heat requirement of buildings, has been fulfilled. Optimum collector area for the heating system has been determined. Total heat requirement of 69% has been met by means of heating system concerning the space heating and domestic water heating. In the accordance with the results of the economical analysis, the payback time of the heating system has been determined as 1920 years.

Berrin Karacavus; Ahmet Can

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Chapter 1.19: Cadmium Telluride Photovoltaic Thin Film: CdTe  

SciTech Connect

The chapter reviews the history, development, and present processes used to fabricate thin-film, CdTe-based photovoltaic (PV) devices. It is intended for readers who are generally familiar with the operation and material aspects of PV devices but desire a deeper understanding of the process sequences used in CdTe PV technology. The discussion identifies why certain processes may have commercial production advantages and how the various process steps can interact with each other to affect device performance and reliability. The chapter concludes with a discussion of considerations of large-area CdTe PV deployment including issues related to material availability and energy-payback time.

Gessert, T. A.

2012-01-01T23:59:59.000Z

322

Cogeneration - prepackaged systems: Tecogen used to fix aborted Firestone job  

SciTech Connect

A new 60-kW Thermo Electron Tecogen cogenerating system that will allow Vallejo, CA residents to use an outdoor pool in winter will also cut the city's heating and electricity costs by about $26,000 a year and have a less than four-year payback. After the project was abandoned by the now defunct Firestone Energy Systems Inc., the contract was awarded to a local firm. Thermo Electron bid its pre-packaged unit for $102,750 installed, with a maintenance offer of two cents per kilowatt hour of generator run-time. The city is contemplating legal action against Firestone.

Maggs, J.

1986-03-03T23:59:59.000Z

323

American Recovery and Reinvestment Act (ARRA) Federal Energy Management Program Technical Assistance Project 281 Solar Hot Water Application Assessment for U.S. Army IMCOM-Southeast Region  

SciTech Connect

The Energy Independence and Security Act of 2007 requires installations (EISA) to install solar systems of sufficient capacity to provide 30% of service hot water in new construction and renovations where cost-effective. However, installations are struggling with how to implement solar hot water, and while several installations are installing solar hot water on a limited basis, paybacks remain long. Pacific Northwest National Laboratory (PNNL) was tasked to address this issue to help determine how best to implement solar hot water projects. This documents discusses the results of that project.

Russo, Bryan J.; Chvala, William D.

2010-09-30T23:59:59.000Z

324

Energy savings opportunity survey, Energy Engineering Analysis Program (EEAP), Fort Campbell, Kentucky, final report - phase I. Executive summary. Final report  

SciTech Connect

Systems Corp surveyed and completed energy analyses for 98 buildings, fifteen chiller plants, and roadway lighting. The energy conservation opportunities (ECOs) evaluated were lighting efficiency improvements, instantaneous water heaters, heat recovery from hot refrigerant gases, absorption chiller replacements, and ground water coupled heat pumps. Cost estimates were prepared using M-CACES. Life cycle cost analyses were performed using the Life Cycle Cost in Design (LCCID) computer program. Project development brochures (PDBs) and DD1391 forms were prepared for Energy Conservation Investment Program (ECIP) projects. The projects that were developed represent $2,257,000 in annual savings with favorable simple paybacks and saving to investment ratios (SIRs).

NONE

1993-11-12T23:59:59.000Z

325

Energy savings opportunity survey, Energy Engineering Analysis Program (EEAP), Fort Campbell, Kentucky. Phase I, volume 1, sections 1-4. Final report  

SciTech Connect

Systems Corp surveyed and completed energy analyses for 98 buildings, fifteen chiller plants, and roadway lighting. The energy conservation opportunities (ECOs) evaluated were lighting efficiency improvements, instantaneous water heaters, heat recovery from hot refrigerant gases, absorption chiller replacements, and ground water coupled heat pumps. Cost estimates were prepared using M-CACES. Life cycle cost analyses were performed using the Life Cycle Cost in Design (LCCID) computer program. Project development brochures (PDBs) and DD1391 forms were prepared for Energy Conservation Investment Program (ECIP) projects. The projects that were developed represent $2,257,000 in annual savings with favorable simple paybacks and saving to investment ratios (SIRs).

NONE

1993-11-12T23:59:59.000Z

326

Gas-fueled cogeneration for supermarkets. Phase 1 final report, March-December 1984  

SciTech Connect

Supermarkets offer a unique application for a packaged cogeneration system because of the large and continuous need for shaft power to drive refrigeration compressors. Waste heat from the engine can be used efficiently to drive an absorption chiller for additional refrigeration capacity, and to provide space and water heating. In Phase I of this project, such a system was designed and analyzed. The analysis first considered several alternate configurations. Based on these results, the optimized system was then considered for five different geographic locations. In general it was found that a payback of three years or less could be achieved.

Walker, D.H.; Krepchin, I.P.; Poulin, E.C.; Demler, R.L.; Hynek, S.J.

1985-04-01T23:59:59.000Z

327

Retrofit Financial Analysis Tool  

Energy.gov (U.S. Department of Energy (DOE))

The Street and Parking Facility Lighting Retrofit Financial Analysis Tool was developed by a partnership of the DOE Municipal Solid-State Street Lighting Consortium, the Clinton Climate Initiative (CCI)/C40, and the Federal Energy Management Program (FEMP), for the financial analysis of retrofitting street and parking facility lighting with more efficient alternatives. Property owners, city and other government agencies, utilities, and energy efficiency organizations can use this tool to compute annualized energy and energy-cost savings, maintenance savings, greenhouse gas reductions, net present value, and simple payback associated with potential lighting upgrades.

328

Advanced Energy Retrofit Guide Retail Buildings  

SciTech Connect

The Advanced Energy Retrofit Guide for Retail Buildings is a component of the Department of Energys Advanced Energy Retrofit Guides for Existing Buildings series. The aim of the guides is to facilitate a rapid escalation in the number of energy efficiency projects in existing buildings and to enhance the quality and depth of those projects. By presenting general project planning guidance as well as financial payback metrics for the most common energy efficiency measures, these guides provide a practical roadmap to effectively planning and implementing performance improvements for existing buildings.

Liu, Guopeng; Liu, Bing; Zhang, Jian; Wang, Weimin; Athalye, Rahul A.; Moser, Dave; Crowe, Eliot; Bengtson, Nick; Effinger, Mark; Webster, Lia; Hatten, Mike

2011-09-19T23:59:59.000Z

329

Case Study- The Challenge: Improving Sewage Pump System Performance  

Energy.gov (U.S. Department of Energy (DOE))

This case study looks at how Trumbull, Connecticut increased the energy and operating efficiency of its Reservoir Avenue sewage pump station. With the help of ITT Flygt Corporation, the town altered the existing pump system by adding a smaller pump and modifying the system control scheme. The changes reduced annual electricity consumption by almost 44 percent, or nearly 31,900 kWh, saving more than $2,600 per year. The $12,000 project had a simple payback of 4.6 years.

330

Return on investment in graduate management education in the South Pacific  

Science Journals Connector (OSTI)

This paper examines the private and public return on investment in education achieved by alumni of the Masters of Business Administration (MBA) programme of the University of the South Pacific (USP). The salary levels and employment opportunities in the South Pacific lag behind those in developed economies. The cost of an MBA at USP is low in comparison to the average cost of MBAs at other universities but high relative to local income levels in the South Pacific. Nonetheless, we find that the MBA payback is quick for individuals and it would return the cost of a scholarship to the government in three to five years in the form of higher income taxes.

Jeffery A. Born; James McMaster; Anna Baukje De Jong

2008-01-01T23:59:59.000Z

331

Chapter 16: Retrocommissioning Evaluation Protocol  

SciTech Connect

Retrocommissioning (RCx) is a systematic process for optimizing energy performance in existing buildings. It specifically focuses on improving the control of energy-using equipment (e.g., heating, ventilation, and air conditioning equipment and lighting) and typically does not involve equipment replacement. Field results have shown proper RCx can achieve energy savings ranging from 5% to 20%, with a typical payback of 2 years or less. A study conducted on behalf of Lawrence Berkeley National Laboratory analyzed data from 11 utilities operating RCx programs across the United States. The dataset included 122 RCx projects and more than 950 RCx measures.

Tiessen, A.

2014-09-01T23:59:59.000Z

332

Low Temperature Air Distribution with Ice Storage System: A Case Study  

E-Print Network (OSTI)

weekdays). The second part of the incentive is a "time of day" rate structure that bases the demand charge in June, July, August, and September on the electrical demand registered during the "on peak" time (12:OO noon to 8:00 pm). This allows... will be paid back in approximately two and one-half years at the current utility rate structure. The payback was possible because of the cash incentive offered by T.U. . Electric for the off peak storage system. The low temperature air distribution...

Ash, A.

1990-01-01T23:59:59.000Z

333

Heat recovery from chillers cuts costs in sunbelt stores. [Rusty Pelican Restaurants, Irvine, CA  

SciTech Connect

Rusty Pelican Restaurants Incorporated, which owns and operates 18 seafood restaurants from its headquarters in Irvine California, will net a payback of three to four years on the installation of heat recovery systems in all nine of its California locations. The systems capture waste heat from the restaurants roof-top air conditioning units to heat domestic hot water, and are therefore being installed in Sunbelt locations where air conditioners are used most. On the average, the systems will cut electricity consumed by the air conditioning units by 15% and cut domestic hot water heating costs by 41 to 63%.

Poplett, J.

1985-04-22T23:59:59.000Z

334

Predictive Energy Optimization  

E-Print Network (OSTI)

?commercial?building?portfolios ? Backed?by?leading?industry?vendors;?partnered? with?US?and?Australia?s?national?labs ? 15M?sq?ft?of?buildings?under?contract?with?top? REITs,?government,?utilities?and?enterprises: ? A?and?B?grade?buildings ? 40K? 2.5M??sq?ft ? Office...?SF ? Schneider?BMS ? 7?FT?engineers $600k+??annualised?savings 13%?HVAC?reduction 3x?payback?on?typical?BIQ?Fees ?$(100,000) ?$? ?$100,000 ?$200,000 ?$300,000 ?$400,000 ?$500,000 ?$600,000 ?$700,000 BuildingIQ?Cumulative?Savings Thank?you! Peter...

Dickinson, P.

2013-01-01T23:59:59.000Z

335

Cooling season study and economic analysis of a desiccant cooling system  

E-Print Network (OSTI)

10 20 30 40 50 60 70 80 Gas Cost (3/GJ) Figure 4. 4 Gas Price vs DINC Cycle Payback Period at Various Electricity Prices SEER = 12 35 20 18 16 ~ 14 ~ 12 D o 10 8 6 o 4 $0. 06/Kwh $0. 09/Kwh $0. 12/Kwh $0. 15/Kwh $0. 'I 8/Kwh 10 20... IV ECONOMIC ANALYSIS V CONCLUSIONS 28 36 NOMENCLATURE 39 REFERENCES 46 APPENDIX A - HOUSE CONSTRUCTION DATA . . APPENDIX B - SECOND LAW COMPARISON 48 53 APPENDIX C - COOLING SEASON AND DINC CYCLE PROGRAM LISTING 72 APPENDIX D - ECONOMIC...

Lee, James Howard

2012-06-07T23:59:59.000Z

336

Information programs for technology adoption: the case of energy-efficiency audits  

Science Journals Connector (OSTI)

We analyze technology adoption decisions of manufacturing plants in response to government-sponsored energy audits. Overall, plants adopt about half of the recommended energy-efficiency projects. Using fixed effects logit estimation, we find that adoption rates are higher for projects with shorter paybacks, lower costs, greater annual savings, higher energy prices, and greater energy conservation. Plants are 40% more responsive to initial costs than annual savings, suggesting that subsidies may be more effective at promoting energy-efficient technologies than energy price increases. Adoption decisions imply hurdle rates of 50100%, which is consistent with the investment criteria small and medium-size firms state they use.

Soren T Anderson; Richard G Newell

2004-01-01T23:59:59.000Z

337

LoneSTAR Program: Maximizing Energy Efficiency while Protecting the Envrionment  

E-Print Network (OSTI)

Assessment Report (EAR) ? Utility Assessment Report (UAR) ? Systems Commissioning Report (in the case where the commissioning meets LoanSTAR payback requirements) ESL-KT-14-11-31 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18...Maximiz ing Energy Eff ic iency whi le Protect ing the Envi ronment LoanSTAR PROGRAM ESL-KT-14-11-31 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 ? Executed 240 loans totaling $407,923,762.32 ? 93 loans to publ...

Trevino, E.

2014-01-01T23:59:59.000Z

338

Barriers to household investment in residential energy conservation: preliminary assessment  

SciTech Connect

A general assessment of the range of barriers which impede household investments in weatherization and other energy efficiency improvements for their homes is provided. The relationship of similar factors to households' interest in receiving a free energy audits examined. Rates of return that underly household investments in major conservation improvements are assessed. A special analysis of household knowledge of economically attractive investments is provided that compares high payback improvements specified by the energy audit with the list of needed or desirable conservation improvements identified by respondents. (LEW)

Hoffman, W.L.

1982-12-01T23:59:59.000Z

339

Cost Benefit Analysis Modeling Tool for Electric vs. ICE Airport Ground Support Equipment Development and Results  

SciTech Connect

This report documents efforts to develop a computer tool for modeling the economic payback for comparative airport ground support equipment (GSE) that are propelled by either electric motors or gasoline and diesel engines. The types of GSE modeled are pushback tractors, baggage tractors, and belt loaders. The GSE modeling tool includes an emissions module that estimates the amount of tailpipe emissions saved by replacing internal combustion engine GSE with electric GSE. This report contains modeling assumptions, methodology, a users manual, and modeling results. The model was developed based on the operations of two airlines at four United States airports.

James Francfort; Kevin Morrow; Dimitri Hochard

2007-02-01T23:59:59.000Z

340

Role of nuclear fusion in future energy systems and the environment under future uncertainties  

Science Journals Connector (OSTI)

Debates about whether or not to invest heavily in nuclear fusion as a future innovative energy option have been made within the context of energy technology development strategies. This is because the prospects for nuclear fusion are quite uncertain and the investments therefore carry the risk of quite large regrets, even though investment is needed in order to develop the technology. The timeframe by which nuclear fusion could become competitive in the energy market has not been adequately studied, nor has roles of the nuclear fusion in energy systems and the environment. The present study has two objectives. One is to reveal the conditions under which nuclear fusion could be introduced economically (hereafter, we refer to such introductory conditions as breakeven prices) in future energy systems. The other objective is to evaluate the future roles of nuclear fusion in energy systems and in the environment. Here we identify three roles that nuclear fusion will take on when breakeven prices are achieved: (i) a portion of the electricity market in 2100, (ii) reduction of annual global total energy systems cost, and (iii) mitigation of carbon tax (shadow price of carbon) under CO2 constraints. Future uncertainties are key issues in evaluating nuclear fusion. Here we treated the following uncertainties: energy demand scenarios, introduction timeframe for nuclear fusion, capacity projections of nuclear fusion, CO2 target in 2100, capacity utilization ratio of options in energy/environment technologies, and utility discount rates. From our investigations, we conclude that the presently designed nuclear fusion reactors may be ready for economical introduction into energy systems beginning around 20502060, and we can confirm that the favorable introduction of the reactors would reduce both the annual energy systems cost and the carbon tax (the shadow price of carbon) under a CO2 concentration constraint.

Koji Tokimatsu; Junichi Fujino; Satoshi Konishi; Yuichi Ogawa; Kenji Yamaji

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

THE ECONOMICS OF REPROCESSING vs DIRECT DISPOSAL OF SPENT NUCLEAR FUEL  

SciTech Connect

This report assesses the economics of reprocessing versus direct disposal of spent nuclear fuel. The breakeven uranium price at which reprocessing spent nuclear fuel from existing light-water reactors (LWRs) and recycling the resulting plutonium and uranium in LWRs would become economic is assessed, using central estimates of the costs of different elements of the nuclear fuel cycle (and other fuel cycle input parameters), for a wide range of range of potential reprocessing prices. Sensitivity analysis is performed, showing that the conclusions reached are robust across a wide range of input parameters. The contribution of direct disposal or reprocessing and recycling to electricity cost is also assessed. The choice of particular central estimates and ranges for the input parameters of the fuel cycle model is justified through a review of the relevant literature. The impact of different fuel cycle approaches on the volume needed for geologic repositories is briefly discussed, as are the issues surrounding the possibility of performing separations and transmutation on spent nuclear fuel to reduce the need for additional repositories. A similar analysis is then performed of the breakeven uranium price at which deploying fast neutron breeder reactors would become competitive compared with a once-through fuel cycle in LWRs, for a range of possible differences in capital cost between LWRs and fast neutron reactors. Sensitivity analysis is again provided, as are an analysis of the contribution to electricity cost, and a justification of the choices of central estimates and ranges for the input parameters. The equations used in the economic model are derived and explained in an appendix. Another appendix assesses the quantities of uranium likely to be recoverable worldwide in the future at a range of different possible future prices.

Matthew Bunn; Steve Fetter; John P. Holdren; Bob van der Zwaan

2003-07-01T23:59:59.000Z

342

Economic evaluation of small-scale photovoltaic hybrid systems for mini-grid applications in far north Cameroon  

Science Journals Connector (OSTI)

A comparison between photovoltaic hybrid systems (PVHS), standalone photovoltaic (PV) and standalone diesel generator options is performed using the net present value (NPV) technique. A typical village mini-grid energy demand of 7.08kWh/day is considered in the computation of energy costs and breakeven grid distances. A first sensitivity analysis is conducted using remote diesel prices of 0.8/l, 0.98/l, 1.12/l, 1.28/l with a PV module cost of 7.5/Wp. A second sensitivity analysis is also done using PV module costs of 5.25/Wp, 6/Wp, 6.75/Wp, 7.5/Wp with a diesel price of 1.12/l. The energy cost for the diesel option was found to be 0.812/kWh at a diesel fuel price of 1.12/l. The sensitivity analyses showed that minimum energy costs were attained in PVHS at renewable energy fractions in the range 82.695.3%. In the second sensitivity analysis the energy costs and breakeven grid distances were found to be in the ranges 0.6920.785/kWh and 5.15.9km respectively. For a PV module cost of 5.25/Wp, the lowest energy cost for the PVHS option was 0.692/kWh at a final renewable energy fraction of 95.3% with the diesel generator hours being 37h compared to 2075h in the standalone diesel generator option. Consequently, a 30% reduction in custom duties and taxes on imported PV modules and sub-systems would increase the use of small-scale and climate friendly PV mini-grids in remote areas of far north Cameroon that have an annual insolation of at least 5.55kWh/m2/day.

Nfah Eustace Mbaka; Ngundam John Mucho; Kenne Godpromesse

2010-01-01T23:59:59.000Z

343

Synthesis of fluorescein labeled 7-methylguanosinemonophosphate Amarnath Natarajan,a  

E-Print Network (OSTI)

phosphoramidate chemistry. Since tetrazole is no longer commercially available we successfully used pyridine

344

Building America Spring 2012 Stakeholder Meeting Report - Austin, Texas: February 29 - March 2, 2012  

SciTech Connect

This document is no longer available. Please contact Cheryn.Metzger@nrel.gov for further information.

Not Available

2012-05-01T23:59:59.000Z

345

Investigations of marine cyanobacterial secondary metabolites : isolation, structure elucidation, and synthesis  

E-Print Network (OSTI)

seawater in the field; the supernatant was decanted and discarded before shipment. For longer storage,

Nunnery, Joshawna Kay

2012-01-01T23:59:59.000Z

346

Evaluating daylighting potential and energy efficiency in a classroom building  

Science Journals Connector (OSTI)

In this paper we analyze the possibility of using daylight as the main source of light for learning and teaching activities in a classroom building of the Universidade Tecnolgica Federal do Paran in Curitiba Brazil. Beginning with a survey on light bulb and luminaire types used in the building and on the potential of daylighting in such environments six different classroom types with different solar orientations were selected for analysis. The research methods included the estimation of daylighting potential from obtained daylight coefficients (DCs) for periods of the year and sky conditions other than those of the onsite measurements; the evaluation of conformity of the lighting system to the Brazilian RTQ Code (Regulamento Tcnico de Qualidade) an energy consumption rating system aimed at reducing electric energy consumption in office buildings; the estimation of electric energy demand for a combined use of daylighting and lighting system; the proposal of an efficient lighting system; and cost assessment using payback analysis. Results suggest energy savings of up to 94% when integrating daylight with the artificial lighting system a payback within the range of 2260 months for a complete substitution of the existing lighting system for a more efficient one.

E. L. Krger; S. D. Fonseca

2011-01-01T23:59:59.000Z

347

Ranking cost effective energy conservation measures for heating in Hellenic residential buildings  

Science Journals Connector (OSTI)

Abstract Residential buildings comprise the biggest segment of the European building stock and they are responsible for the majority of the building's sector energy consumption and CO2 emissions. This paper documents the potential benefits and sets the priorities of individual energy conservation measures (ECMs) to reduce heating energy consumption in Hellenic residential buildings, including space heating and domestic hot water production. The analysis is facilitated by using the available Hellenic typology for residential buildings that consists of 24 typical buildings, derived after a classification in three construction periods, two building sizes and four climate zones. The focus is mainly on the implementation of \\{ECMs\\} that have low first-cost investment and short payback period. In order to prioritize \\{ECMs\\} that would be most attractive to building owners, two ranking criteria are used, namely primary heating energy savings and payback period. Finally, the preliminary results are used to provide an insight on the potential abatement of CO2 emissions for the national residential building stock.

K.G. Droutsa; S. Kontoyiannidis; E.G. Dascalaki; C.A. Balaras

2014-01-01T23:59:59.000Z

348

Roof and Attic Design Guidelines for new and retrofit Construction of Homes in Hot and Coild Climates  

SciTech Connect

Some guidelines for improving the energy efficiency of roofs and attics are presented and are based on the research of the DOE Building Technology. The results of combined analytical and experimental studies were used to benchmark computer tools, which in turn, were used to simulate homes in hot and cold climates. Adding floor and roof insulation, above deck ventilation, radiant barriers, cool color shingle, metal or tile roofs, sealing the attic floor, sealing the duct system and sealing the attic were simulated to compute the cost of energy savings. Results are prioritized to help building owners make an informed economic decision when contemplating roof and attic retrofits. Sealing the attic floor is a top retrofit option. The sealed attic approach and a new prototype roof assembly an insulated and ventilated roof are good options for retrofit work but have paybacks ranging from 15 to 25 years. A new sealed attic concept was simulated and computations show its simple payback is about 10 to 12 years in hot and cold climates; its first cost is significantly reduced from that of a spray foam approach. For new construction the best option is to keep the ducts out of the attic, make sure the attic floor is sealed and add at least code level of insulation to the ceiling.

Desjarlais, Andre Omer [ORNL] [ORNL; LaFrance, Marc [International Energy Agency] [International Energy Agency

2013-01-01T23:59:59.000Z

349

Feed-in tariff for solar photovoltaic: The rise of Japan  

Science Journals Connector (OSTI)

Abstract Japan started implementing a national Feed-In Tariff (FiT) mechanism on the 1st July 2012, which included specific payment tariffs for solar photovoltaic (PV) installations. This marks a new era in the renewable energy landscape in Japan. This paper aims at analysing the solar PV prospect in Japan, particularly in both residential and non-residential sectors. The paper presents, first, an overview of energy trends in Japan prior to the Fukushima event. This is followed by a short review of solar PV progress in the country, highlighting the major policies and programmes that have been implemented as well as the installations that have been carried out over the past two decades. Next, the financial impact of the new FiT scheme on consumers is evaluated. The financial analysis investigates the total profit, the average annual return on investment and the payback period. For a comparison purposes, a similar financial analysis is also conducted with selected countries around the world namely Germany, Italy and the United Kingdom. The results from this analysis indicate that the new Japanese FiT rate generates a good profit, a moderate annual return on investment and an acceptable payback period, suggesting an increasing trend of solar PV uptake over the next years.

Firdaus Muhammad-Sukki; Siti Hawa Abu-Bakar; Abu Bakar Munir; Siti Hajar Mohd Yasin; Roberto Ramirez-Iniguez; Scott G. McMeekin; Brian G. Stewart; Nabin Sarmah; Tapas Kumar Mallick; Ruzairi Abdul Rahim; Md Ershadul Karim; Salman Ahmad; Razman Mat Tahar

2014-01-01T23:59:59.000Z

350

Desiccant cooling using unglazed transpired solar collectors  

SciTech Connect

The use of unglazed solar collectors for desiccant regeneration in a solid desiccant cooling cycle was investigated because these collectors are lower in cost than conventional glazed flat-plate collectors. Using computer models, the performance of a desiccant cooling ventilation cycle integrated with either unglazed transpired collectors or conventional glazed flat-plate collectors was obtained. We found that the thermal performance of the unglazed system was lower than the thermal performance of the glazed system because the unglazed system could not take advantage of the heat of adsorption released during the dehumidification process. For a 3-ton cooling system, although the area required for the unglazed collector was 69% more than that required for the glazed collector, the cost of the unglazed collector array was 44% less than the cost of the glazed collector array. The simple payback period of the unglazed system was half of the payback period of the glazed collector when compared to an equivalent gas-fired system. Although the use of unglazed transpired collectors makes economic sense, some practical considerations may limit their use in desiccant regeneration. 8 refs.

Pesaran, A.A. [National Renewable Energy Lab., Golden, CO (United States)] [National Renewable Energy Lab., Golden, CO (United States); Wipke, K. [Stanford Univ., CA (United States)] [Stanford Univ., CA (United States)

1992-05-01T23:59:59.000Z

351

Techno-economic evaluation of a ventilation system assisted with exhaust air heat recovery, electrical heater and solar energy  

Science Journals Connector (OSTI)

Abstract The energy consumed to condition fresh air is considerable, particularly for the buildings such as cinema, theatre or gymnasium saloons. The aim of the present study is to design a ventilation system assisted with exhaust air heat recovery unit, electrical heater and stored solar energy, then to make an economical analysis based on life cycle cost (LCC) to find out its payback period. The system is able to recover thermal energy of exhaust air, store solar energy during the sunlight period and utilize it in the period between 17:00 and 24:00h. The transient behaviour of the system is simulated by the TRNSYS 16 software for winter period from 1st of November to 31st of March for Izmir city of Turkey. The obtained results show that the suggested ventilation system reduces energy consumption by 86% compared to the conventional ventilation system in which an electrical heater is used. The payback period of the suggested system is found to be 5 years and 8 months which is a promising result in favour of the solar energy usage in building ventilation systems.

Gamze Ozyogurtcu; Moghtada Mobedi; Baris Ozerdem

2014-01-01T23:59:59.000Z

352

Assessment of geothermal potential for Ashland  

SciTech Connect

Recent work in the Ashland area has identified a low temperature geothermal resource on the order of 65-90/sup 0/F. This report concentrates on utilization of the low temperature resource through the use of water source heat pumps. Water-to-air heat pumps were examined for residential, commercial and industrial sectors in two applications; space heating and process heating. In the residential sector, the most attractive areas for heat pump use appear to be those not currently served by city water or natural gas service. Simple payback periods for these applications vary from 9.5 years to well over 20 years depending upon the specific characteristics of the site. In the commercial sector, heat pump use for space heating of government funded office type structures appears to be a viable option. This is particularly true if air conditioning is used. The payback periods for heat pump use in commercial office buildings and retail establishments, however, are beyond the values generally considered attractive by private entities.

Not Available

1983-05-01T23:59:59.000Z

353

Analysis of IECC2003 Chiller Heat Recovery for Service Water Heating Requirement for New York State  

SciTech Connect

The state of New York asked the U.S. Department of Energy to evaluate the cost-effectiveness of the requirement for Heat Recovery for Service Water Heating that exists in the 2003 International Energy Conservation Code to determine whether this requirement should be adopted into the New York State Energy Code. A typical hotel application that would trigger this requirement was examined using whole building simulation software to generate baseline annual chiller and service hot water loads, and a spreadsheet was used to examine the energy savings potential for heat recovery using hourly load files from the simulation. An example application meeting the code requirement was developed, and the energy savings, energy cost savings, and first costs for the heat recovery installation were developed. The calculated payback for this application was 6.3 years using 2002 New York state average energy costs. This payback met the minimum requirements for cost effectiveness established for the state of New York for updating the commercial energy conservation code.

Winiarski, David W.

2004-08-15T23:59:59.000Z

354

GHG emissions and energy performance of offshore wind power  

Science Journals Connector (OSTI)

Abstract This paper presents specific life cycle GHG emissions from wind power generation from six different 5MW offshore wind turbine conceptual designs. In addition, the energy performance, expressed by the energy indicators Energy Payback Ratio (EPR) Energy Payback Time (EPT), is calculated for each of the concepts. There are currently few LCA studies in existence which analyse offshore wind turbines with rated power as great as 5MW. The results, therefore, give valuable additional environmental information concerning large offshore wind power. The resulting GHG emissions vary between 18 and 31.4g CO2-equivalents per kWh while the energy performance, assessed as EPR and EPT, varies between 7.5 and 12.9, and 1.6 and 2.7 years, respectively. The relatively large ranges in GHG emissions and energy performance are chiefly the result of the differing steel masses required for the analysed platforms. One major conclusion from this study is that specific platform/foundation steel masses are important for the overall GHG emissions relating to offshore wind power. Other parameters of importance when comparing the environmental performance of offshore wind concepts are the lifetime of the turbines, wind conditions, distance to shore, and installation and decommissioning activities. Even though the GHG emissions from wind power vary to a relatively large degree, wind power can fully compete with other low GHG emission electricity technologies, such as nuclear, photovoltaic and hydro power.

Hanne Lerche Raadal; Bjrn Ivar Vold; Anders Myhr; Tor Anders Nygaard

2014-01-01T23:59:59.000Z

355

Feasibility of accompanying uncontrolled linear heater with solar system innatural gas pressure drop stations  

Science Journals Connector (OSTI)

Natural gas (NG) must be preheated before pressure reduction takes places at City Gate Stations (CGS). Indirect Water Bath Gas Heaters are employed in the CGS for preheating. The heaters consume a considerable amount of NG for preheating. As low temperature is required, a solar system has been proposed to provide part of heat demand. The system consists of a collector array and a storage tank. The tank stores solar heat during the day and releases it during the night. To show the capabilities of the proposed system, the Akand CGS has been chosen as a case study. The results show that as the number of collector increases, the fuel cost decreases but the capital cost increases. An optimum number of collectors and the storage tank capacity have been found based on economic analysis. The fuel saving occurs throughout the year with the maximum at June. The economic feasibility study of the proposed system has been carried out using two methods. These methods are Simple Payback Ratio (SPR) and (Net Present Value) NPV. The first one unveils that the payback ratio is only 6.9 years. The NPV method shows that the system will give net benefit after 11 years.

M. Farzaneh-Gord; A. Arabkoohsar; M. Deymi Dasht-bayaz; V. Farzaneh-Kord

2012-01-01T23:59:59.000Z

356

Thermally Activated Cooling: A Regional Approach for EstimatingBuilding Adoption  

SciTech Connect

This paper examines the economic potential for thermally-activated cooling (TAC) technologies as a component of distributed energy resource (DER) systems in California. A geographic information system (GIS) is used to assess the regional variation of TAC potential and to visualize the geographic pattern of potential adoption. The economic potential and feasibility of DER systems in general, and especially TAC, is highly dependent on regional factors such as retail electricity rates, building cooling loads, and building heating loads. Each of these factors varies with location, and their geographic overlap at different sites is an important determinant in a market assessment of DER and TAC. This analysis uses system payback period as the metric to show the regional variation of TAC potential in California office buildings. The DER system payback with and without TAC is calculated for different regions in California using localized values of retail electricity rates and the weather-dependent variation in building cooling and heating loads. This GIS-based method has numerous applications in building efficiency studies where geographically dependent variables, such as space cooling and heating energy use, play an important role.

Edwards, Jennifer L.; Marnay, Chris

2005-06-01T23:59:59.000Z

357

Cost effectiveness of converting to alternative motor vehicle fuels. A technical assistance study for the City of Longview  

SciTech Connect

The City of Longview can obtain significant fuel savings benefits by converting a portion of their vehicle fleet to operate on either compressed natural gas (CNG) or liquid petroleum gas (LPG) fuels. The conversion of 41 vehicles including police units, sedans, pickups, and light duty trucks to CNG use would offset approximately 47% of the city's 1982 gasoline consumption. The CNG conversion capital outlay of $115,000 would be recovered through fuel cost reductions. The Cascade Natural Gas Corporation sells natural gas under an interruptible tariff for $0.505 per therm, equivalent to slightly less than one gallon of gasoline. The city currently purchases unleaded gasoline at $1.115 per gallon. A payback analysis indicates that 39.6 months are required for the CNG fuel savings benefits to offset the initial or first costs of the conversion. The conversion of fleet vehicles to liquid petroleum gas (LPG) or propane produces comparable savings in vehicle operating costs. The conversion of 59 vehicles including police units, pickup and one ton trucks, street sweepers, and five cubic yard dump trucks would cost approximately $59,900. The annual purchase of 107,000 gallons of propane would offset the consumption of 96,300 gallons of gasoline, or approximately 67% of the city's 1982 usage. Propane is currently retailing for $0.68 to $0.74 per gallon. A payback analysis indicates that 27.7 months are required for the fuel savings benefits to offset the initial LPG conversion costs.

McCoy, G.A.

1983-11-18T23:59:59.000Z

358

Comparative evaluation of three alternative power cycles for waste heat recovery from the exhaust of adiabatic diesel engines  

SciTech Connect

Three alternative power cycles were compared in application as an exhaust-gas heat-recovery system for use with advanced ''adiabatic'' diesel engines. The power cycle alternatives considered were steam Rankine, organic Rankine with RC-1 as the working fluid, and variations of an air Brayton cycle. The comparison was made in terms of fuel economy and economic payback potential for heavy-duty trucks operating in line-haul service. The results indicate that, in terms of engine rated specific fuel consumption, a diesel/alternative-power-cycle engine offers a significant improvement over the turbocompound diesel used as the baseline for comparison. The maximum improvement resulted from the use of a Rankine cycle heat-recovery system in series with turbocompounding. The air Brayton cycle alternatives studied, which included both simple-cycle and compression-intercooled configurations, were less effective and provided about half the fuel consumption improvement of the Rankine cycle alternatives under the same conditions. Capital and maintenance cost estimates were also developed for each of the heat-recovery power cycle systems. These costs were integrated with the fuel savings to identify the time required for net annual savings to pay back the initial capital investment. The sensitivity of capital payback time to arbitrary increases in fuel price, not accompanied by corresponding hardware cost inflation, was also examined. The results indicate that a fuel price increase is required for the alternative power cycles to pay back capital within an acceptable time period.

Bailey, M.M.

1985-07-01T23:59:59.000Z

359

Optimization of an atmospheric air volumetric central receiver system: Impact of solar multiple, storage capacity and control strategy  

Science Journals Connector (OSTI)

Abstract Portugal has a high potential for concentrated solar power and namely for atmospheric air volumetric central receiver systems (CRS). The solar multiple and storage capacity have a significant impact on the power plant levelized electricity cost (LEC) and their optimization and adequate control strategy can save significant capital for the investors. The optimized proposed volumetric central receiver system showed good performance and economical indicators. For Faro conditions, the best 4MWe power plant configuration was obtained for a 1.25 solar multiple and a 2h storage. Applying control strategy #1 (CS#1) the power plant LEC is 0.234/kWh with a capital investment (CAPEX) of 22.3million. The capital invested has an internal rate of return (IRR) of 9.8%, with a payback time of 14 years and a net present value (NPV) of 7.9million (considering an average annual inflation of 4%). In the case of better economical indicators, the power plant investment can have positive contours, with an NPV close to 13million (annual average inflation of 2%) and the payback shortened to 13 years.

Bruno Coelho; Szabolcs Varga; Armando Oliveira; Adlio Mendes

2014-01-01T23:59:59.000Z

360

Energy-conservation-investment decision making in developing countries: A review of project implementation in industry. Final report  

SciTech Connect

Despite recent efforts in a number of developing countries to promote energy conservation (EC) and efficiency, only a fraction of EC potential has been captured, especially for projects that require significant investments. The document analyzes EC efforts in 11 countries where energy audit and/or feasibility study programs have been carried out (Bangladesh, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, Jordan, Pakistan, Panama, the Philippines, and Sri Lanka), covering some 1,500 EC projects involving 242 industrial companies. Cost and length of payback seem to be the determining factors for companies considering EC measures; no-cost or low-cost projects with paybacks of less than a year (such as power factor improvement projects) had the highest rate of implementation, while expensive, complicated projects (e.g., cogeneration or fuel substitution projects) were most often rejected. The document concludes, however, that the rate of implementation of EC programs has been quite high, and recommends that inexpensive, short-term projects be featured in future EC programs and increased levels of TA and financial assistance be made available to companies implementing long-term EC measures.

Not Available

1989-12-01T23:59:59.000Z

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361

Life Cycle Assessment of solar energy systems: Comparison of photovoltaic and water thermal heater at domestic scale  

Science Journals Connector (OSTI)

Abstract This study is concerned with the results of a Life Cycle Assessment comparison between photovoltaic silicon based modules and thin film modules and solar thermal systems, as technologies which are usually installed for partially covering household energy demand. Several studies focused on energy and environmental performances of photovoltaic and solar thermal collectors, however they have been always analysed separately. This study proposes the comparison of different systems to exploit the solar energy, producing different energy types. The comparison was done referring to one square meter of roof surface occupied by the equipment. The environmental burdens were calculated according to the indicators proposed by Eco-indicator'95 method. The results showed that the system based on thermal solar collector obtained the major number of more favourable indicators: eight out of ten, in the case of no-recycling of materials after dismantling phase, and six out of ten in the case of recycling of materials after dismantling phase. The thin film modules and solar thermal collector showed the lowest values of energy payback time and \\{CO2eq\\} payback time. Results clearly show that photovoltaic and solar thermal collector can effectively provide comparable environmental and energy benefits as regard to domestic scale installation.

E. Carnevale; L. Lombardi; L. Zanchi

2014-01-01T23:59:59.000Z

362

Renewable Energy Options for a Utility System  

Science Journals Connector (OSTI)

In this paper renewable energies have been re?addressed with respect to the potentials and feasibility of being incorporated in process industries. Within a process utility system is considered to be the most appropriate place for using sustainable energies. For integrating the renewable energies the pinch analysis is applied as the main tool to provide opportunity for energy conservation. The results demonstrated that the power generation by the wind is the most cost effective and environmentally friendly option for energy conservation in comparison to the other sustainable resources. However the tidal energy stands the least due to the long payback period. Also a computer program has been developed using MATLAB 7.3 to screen out different scenarios and perform economic study. The outcome data showed that there are several different opportunities for the integration of alternative energies. Finally this method has been applied to a case study and various retrofit projects have been identified each of which has certain amount of CO 2 reduction and estimated values for the required investment saving potential and payback period.

Lena Ahmadi; M. Hassan Panjeshahi; Simon Perry

2009-01-01T23:59:59.000Z

363

Demonstration of Datacenter Automation Software and Hardware (DASH) at the California Franchise Tax Board  

SciTech Connect

Control software and wireless sensors designed for closed-loop, monitoring and control of IT equipment's inlet air temperatures in datacenters were evaluated and tested while other datacenter cooling best practices were implemented. The controls software and hardware along with each best practice were installed sequentially and evaluated using a measurement and verification procedure between each measure. The results show that the overall project eliminates 475,239 kWh per year, which is 21.3percent of the baseline energy consumption of the data center. The total project, including the best practices will save $42,772 per year and cost $134,057 yielding a simple payback of 3.1 years. However, the control system alone eliminates 59.6percent of the baseline energy used to move air in the datacenter and 13.6percent of the baseline cooling energy, which is 15.2percent of the baseline energy consumption (see Project Approach, Task 1, below, for additional information) while keeping temperatures substantially within the limits recommended by ASHRAE. Savings attributed to the control system are $30,564 per year with a cost $56,824 for a simple payback of 1.9 years.

Bell, Geoffrey C.; Federspiel, Clifford

2009-12-18T23:59:59.000Z

364

An ammonia refrigerator with an absorption circuit as economizer  

Science Journals Connector (OSTI)

The experimental results of a compression refrigerator with an integrated solution circuit, a so-called compression-absorption cycle, are presented. The compression refrigerator operates with ammonia (NH3) as refrigerant. The cycle is improved by two-stage throttling of the condensate and an absorption circuit which replaces the economizer compressor. The absorption circuit operates on the working pair ammonia/water (NH3/H2O). It is driven by superheat of the compressor without additional heat input from an external source. By this means the benefit of two-stage throttling, namely a reduction in compression work or an increase in refrigeration capacity, can be doubled. In the experiments an improvement of up to 9% in the efficiency of the NH3-refrigeration cycle has been attained. Compared to a simple compression refrigerator, the presented compression-absorption cycle has a payback time of only several months. Compared to a conventional economizer refrigeration cycle, the payback can be expected within the range of several months to about four years.

F Ziegler; U Spindler

1993-01-01T23:59:59.000Z

365

Analysis and feasibility study of residential integrated heat and energy recovery ventilator with built-in economizer using an excel spreadsheet program  

Science Journals Connector (OSTI)

Abstract Currently, heat recovery ventilator (HRV) and energy recovery ventilator (ERV) are commonly studied. Nevertheless, there is limited information regarding the dual-core approach energy recovery. This paper investigates the feasibility of an integrated HRV and ERV system, namely HERV, with a built-in economizer used in the residential sector to reduce dependency on furnace and air conditioning systems. In order to achieve this goal, an excel-based analysis tool was developed, providing a quick estimate of system performance and comparison with the HRV and ERV that are currently being used in research houses. The potential of integrated heat and energy recovery ventilator was evaluated based on its calculated operating cost ratio (OCR) and its payback period. Results collected for Vancouver and Toronto, corresponding to temperate and continental climate, indicated that the \\{OCRs\\} of the HERV were four times smaller than the ERV's, meaning that the proposed system was cost-efficient. It was also evidenced that the high demand on the economizer resulted in higher energy saving and shorter payback period of the system. In conclusion, the integrated HERV system with a built-in economizer could be a feasible option for both temperate and continental climates.

Junlong Zhang; Alan S. Fung; Sumeet Jhingan

2014-01-01T23:59:59.000Z

366

A techno-economic analysis of cost savings for retrofitting industrial aerial coolers with variable frequency drives  

Science Journals Connector (OSTI)

A techno-economic model was created in order to develop curves that show the typical annual energy savings, rate of return, and payback for retrofitting aerial coolers with variable frequency drives (VFDs) for up to 50motors, motor sizes from 4 to 186kW (5250hp), and varying climate conditions. The cost savings due to installing a VFD depends on the reduction in energy used, as well as the reduction in power demand, the capital cost of the VFD, installation cost of the VFD, change in operating cost, and cost of electricity. The geographic locations examined in this report were Fort McMurray, Calgary, Vancouver, and Thunder Bay. This study found that the IRR increases rapidly with motor size, becomes greater than 10% at a motor size of approximately 15kW, and may be as high as 220% (for the case of fifty, 186kW motors). The IRR is sensitive to the number of fan motors retrofitted with VFDs, however the sensitivity rapidly declines as the number of motors is increased beyond five. The simple payback period becomes less than 1year and nearly independent of number of motors and motor size for motors larger than 90kW. Ambient temperature and geographic location affect the profitability of the investment, although the IRR only changes by approximately 4%.

Patrick Miller; Babatunde Olateju; Amit Kumar

2012-01-01T23:59:59.000Z

367

More efficient household electricity use  

SciTech Connect

The energy efficiency of electric appliances has increased markedly in OECD countries, according to data provided by utilities, appliance associations, appliance manufacturers, and independent analyses of each country we reviewed (US, Sweden, Norway, Holland, Japan, Germany, UK). These improvements have, in part, offset increases in electricity demand due to increasing saturation of appliances. However, we see evidence that the efficiency of new devices has hit a temporary plateau: Appliances sold in 1988, while far more efficient than similar ones sold in the early 1970s, may not be significantly more efficient than those sold in 1987. The reason for this plateau, according to manufacturers we interviewed, is that the simple energy-saving features have been incorporated; more sophisticated efficiency improvements are economically justified by five to ten year paybacks, but unattractive to consumers in most countries who appear to demand paybacks of less than three years. Manufacturers see features other than efficiency --- such as number of storage compartments and automatic ice-makers --- as more likely to boost sales, market share, or profits. If this efficiency plateau'' proves lasting, then electricity use for appliance could begin to grow again as larger and more fancy models appear in households. 38 refs., 10 figs., 1 tab.

Schipper, L.; Hawk, D.V.

1989-12-01T23:59:59.000Z

368

Investigation of the Performance of D2O-Cooled High-Conversion Reactors for Fuel Cycle Calculations  

SciTech Connect

This report presents FY13 activities for the analysis of D2O cooled tight-pitch High-Conversion PWRs (HCPWRs) with U-Pu and Th-U fueled cores aiming at break-even or near breeder conditions while retaining the negative void reactivity. The analyses are carried out from several aspects which could not be covered in FY12 activities. SCALE 6.1 code system is utilized, and a series of simple 3D fuel pin-cell models are developed in order to perform Monte Carlo based criticality and burnup calculations. The performance of U-Pu fueled cores with axial and internal blankets is analyzed in terms of their impact on the relative fissile Pu mass balance, initial Pu enrichment, and void coefficient. In FY12, Pu conversion performances of D2O-cooled HCPWRs fueled with MOX were evaluated with small sized axial/internal DU blankets (approximately 4cm of axial length) in order to ensure the negative void reactivity, which evidently limits the conversion performance of HCPWRs. In this fiscal year report, the axial sizes of DU blankets are extended up to 30 cm in order to evaluate the amount of DU necessary to reach break-even and/or breeding conditions. Several attempts are made in order to attain the milestone of the HCPWR designs (i.e., break-even condition and negative void reactivity) by modeling of HCPWRs under different conditions such as boiling of D2O coolant, MOX with different 235U enrichment, and different target burnups. A similar set of analyses are performed for Th-U fueled cores. Several promising characteristics of 233U over other fissile like 239Pu and 235U, most notably its higher fission neutrons per absorption in thermal and epithermal ranges combined with lower ___ in the fast range than 239Pu allows Th-U cores to be taller than MOX ones. Such an advantage results in 4% higher relative fissile mass balance than that of U-Pu fueled cores while retaining the negative void reactivity until the target burnup of 51 GWd/t. Several other distinctions between U-Pu and Th-U fueled cores are identified by evaluating the sensitivity coefficients of keff, mass balance, and void coefficient. The effect of advanced iron alloy cladding (i.e., FeCrAl) on the performance of Pu conversion in MOX fueled cores is studied instead of using standard stainless-steel cladding. Variations in clad thickness and coolant-to-fuel volume ratio are also exercised. The use of FeCrAl instead of SS as a cladding alloy reduces the required Pu enrichment and improves the Pu conversion rate primarily due to the absence of nickel in the cladding alloy that results in the reduction of the neutron absorption. Also the difference in void coefficients between SS and FeCrAl alloys is nearly 500 pcm over the entire burnup range. The report also shows sensitivity and uncertainty analyses in order to characterize D2O cooled HCPWRs from different aspects. The uncertainties of integral parameters (keff and void coefficient) for selected reactor cores are evaluated at different burnup points in order to find similarities and trends respect to D2O-HCPWR.

Hikaru Hiruta; Gilles Youinou

2013-09-01T23:59:59.000Z

369

Encouraging Combined Heat and Power in California Buildings  

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Encouraging Combined Heat and Power in California Buildings Encouraging Combined Heat and Power in California Buildings Title Encouraging Combined Heat and Power in California Buildings Publication Type Report LBNL Report Number LBNL-6267E Year of Publication 2013 Authors Stadler, Michael, Markus Groissböck, Gonçalo Cardoso, Andreas Müller, and Judy Lai Abstract Governor Brown's research priorities include an additional 6.5 GW of combined heat and power (CHP) by 2030. As of 2009, roughly 0.25 GW of small natural gas and biogas fired CHP is documented by the Self-Generation Incentive Program (SGIP) database. The SGIP is set to expire, and the anticipated grid de-carbonization based on the development of 20 GW of renewable energy will influence the CHP adoption. Thus, an integrated optimization approach for this analysis was chosen that allows optimizing the adoption of distributed energy resources (DER) such as photovoltaics (PV), CHP, storage technologies, etc. in the California commercial sector from the building owners' perspective. To solve this DER adoption problem the Distributed Energy Resources Customer Adoption Model (DER-CAM), developed by the Lawrence Berkeley National Laboratory and used extensively to address the problem of optimally investing and scheduling DER under multiple settings, has been used. The application of CHP at large industrial sites is well known, and much of its potential is already being realized. Conversely, commercial sector CHP, especially those above 50 to 100 kW peak electricity load, is widely overlooked. In order to analyze the role of DER in CO2 reduction, 147 representative sites in different climate zones were selected from the California Commercial End Use Survey (CEUS). About 8000 individual optimization runs, with different assumptions for the electric tariffs, natural gas costs, marginal grid CO2 emissions, and nitrogen oxide treatment costs, SGIP, fuel cell lifetime, fuel cell efficiency, PV installation costs, and payback periods for investments have been performed. The most optimistic CHP potential contribution in this sector in 2020 will be 2.7 GW. However, this result requires a SGIP in 2020, 46% average electric efficiency for fuel cells, a payback period for investments of 10 years, and a CO2 focused approach of the building owners. In 2030 it will be only 2.5 GW due to the anticipated grid de-carbonization. The 2030 result requires a 60% electric efficiency and 20 year life time for fuel cells, a payback period of 10 years, and a CO2 minimization strategy of building owners. Finally, the possible CHP potential in 2030 shows a significant variance between 0.2 GW and 2.5 GW, demonstrating the complex interactions between technologies, policies, and customer objectives.

370

The Mercury Laser System-A scaleable average-power laser for fusion and beyond  

SciTech Connect

Nestled in a valley between the whitecaps of the Pacific and the snowcapped crests of the Sierra Nevada, Lawrence Livermore National Laboratory (LLNL) is home to the nearly complete National Ignition Facility (NIF). The purpose of NIF is to create a miniature star-on demand. An enormous amount of laser light energy (1.8 MJ in a pulse that is 20 ns in duration) will be focused into a small gold cylinder approximately the size of a pencil eraser. Centered in the gold cylinder (or hohlraum) will be a nearly perfect sphere filled with a complex mixture of hydrogen gas isotopes that is similar to the atmosphere of our Sun. During experiments, the laser light will hit the inside of the gold cylinder, heating the metal until it emits X-rays (similar to how your electric stove coil emits visible red light when heated). The X-rays will be used to compress the hydrogen-like gas with such pressure that the gas atoms will combine or 'fuse' together, producing the next heavier element (helium) and releasing energy in the form of energetic particles. 2010 will mark the first credible attempt at this world-changing event: the achievement of fusion energy 'break-even' on Earth using NIF, the world's largest laser! NIF is anticipated to eventually perform this immense technological accomplishment once per week, with the capability of firing up to six shots per day - eliminating the need for continued underground testing of our nation's nuclear stockpile, in addition to opening up new realms of science. But what about the day after NIF achieves ignition? Although NIF will achieve fusion energy break-even and gain, the facility is not designed to harness the enormous potential of fusion for energy generation. A fusion power plant, as opposed to a world-class engineering research facility, would require that the laser deliver drive pulses nearly 100,000 times more frequently - a rate closer to 10 shots per second as opposed to several shots per day.

Ebbers, C A; Moses, E I

2008-03-26T23:59:59.000Z

371

Thermodynamic and economic analysis of the different variants of a coal-fired, 460MW power plant using oxy-combustion technology  

Science Journals Connector (OSTI)

Abstract In the face of existing international provisions limiting the emissions of greenhouse gases, primarily carbon dioxide, it is necessary to introduce solutions that will allow the production of electricity from coal with high efficiency and low emissions. Oxy-combustion systems integrated with carbon capture and storage (CCS) installations may prove to be such a solution. This paper presents the main results from a thermodynamic analysis of a supercritical unit operating in oxy-combustion technology, fueled with pulverized coal with a power output of 460MW. The parameters of the live steam in the analyzed system are 600C/30MPa. To perform the numerical analyses, models of the individual components were built, including an oxygen production installation (ASU), a boiler, a steam cycle and a flue gas conditioning system (CPU). The models were built in the commercial programs GateCycle and Aspen and then integrated into the Excel environment. In this paper, different structures for an integrated oxy-type system were analyzed and compared. The auxiliary power rates were determined for individual technological installations of the oxy-combustion power plant. The highest value of this indicator, in the range between 15.65% and 19.10% was calculated for the cryogenic ASU. The total value of this index for the whole installation reaches as high as 35% for the base case. The use of waste heat from the interstage cooling of compressors in the air separation installation and flue gas conditioning system was considered as the methods of counteracting the efficiency decrease resulting from the introduction of ASU and CPU. The proposed configurations and optimization allow a significant reduction of the auxiliary power of the considered unit. In consequence, the efficiency decrease was reduced by approximately 3.5% points. An economic analysis of the different structures of the oxy-fuel system and the reference air-fired power plant was also conducted using a newly developed computational algorithm built in the Excel environment. The algorithm uses a Break Even Point (BEP) method, focusing mainly on determining a break-even price of electricity. It was found that about the profitability of this investment will mainly decide the price of emission allowances. For the assumptions made, the oxy-combustion power plant will be economically comparable with a reference plant without carbon dioxide capture when the price of allowances would be between 34 and 41/tonne. A sensitivity analysis concerning the influence of selected components of the cash flows on the break-even price of electricity was also performed. The main results of the calculations are presented in the paper.

Anna Skorek-Osikowska; Lukasz Bartela; Janusz Kotowicz; Marcin Job

2013-01-01T23:59:59.000Z

372

GRASP with path-relinking for the weighted maximum satisfiability ...  

E-Print Network (OSTI)

Jan 17, 2005 ... take longer, we seek to determine if the longer iterations pay off in terms of a reduction in number of iterations .... S.A. Cook. The complexity of...

2005-01-17T23:59:59.000Z

373

Health Status of Long-term Cancer Survivors: Results from an Australian Population-Based Sample  

Science Journals Connector (OSTI)

...This study investigated the health implications of longer-term cancer survivorship...distinction with regard to implications for health care policy and cancer management...This study investigated the health implications of longer-term cancer survivorship...

Elizabeth G. Eakin; Danny R. Youlden; Peter D. Baade; Sheleigh P. Lawler; Marina M. Reeves; Jane S. Heyworth; and Lin Fritschi

2006-10-01T23:59:59.000Z

374

E-Print Network 3.0 - anterior motor evoked Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

motor strip (labeled M1) and a more anterior, premotor strip (PM... stimulation trains to motor cortex, Huang longer movement evoked by the longer train. Why then et al....

375

Swimming Pool  

Science Journals Connector (OSTI)

Time is no Longer a linear condition, instead we can postpone, edit and cut our immediate recognitions, creating buildings whose identities along with our observations are no longer definitive, by replacing sy...

2007-01-01T23:59:59.000Z

376

Carlos R. Montalto Cruz' Old Web Page  

E-Print Network (OSTI)

I am no longer at Purdue University, I am now working at the University of Washington in Seattle. The link to my new webpage is HERE. I will no longer support...

377

Information Resources: Webcast: Municipal Solid-State Street Lighting  

NLE Websites -- All DOE Office Websites (Extended Search)

Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool This April 3, 2012 webcast presented information about the Retrofit Financial Analysis Tool developed by DOE"s Municipal Solid-State Street Lighting Consortium. Doug Elliott of Pacific Northwest National Laboratory provided a guided walk-through of what the tool can do and how to use it to evaluate costs and benefits associated with converting to LED street and roadway lighting. The webcast showed how city and other government agencies, utilities, finance and budget offices, and energy efficiency organizations can use the tool to compute annualized energy-cost savings, maintenance savings, greenhouse gas reductions, net present value, and simple payback, which can be helpful when putting together construction and conservation grant applications, as well as for preparing budgets and comparing incumbent costs to new costs.

378

Parity | OpenEI  

Open Energy Info (EERE)

Parity Parity Dataset Summary Description Global PV grid parity and market potential. Data is courtesy of Sean Ong. Source National Renewable Energy Laboratory Date Released Unknown Date Updated Unknown Keywords grid Parity Payback photovoltaic price PV Residential Data text/csv icon globalgridparity.csv (csv, 4.8 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Creative Commons CCZero Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote Overall rating Average vote Your vote Comments Login or register to post comments If you rate this dataset, your published comment will include your rating. Syndicate content

379

CX-000070: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

70: Categorical Exclusion Determination 70: Categorical Exclusion Determination CX-000070: Categorical Exclusion Determination Meridian Township's Revolving Energy Fund CX(s) Applied: B5.1, B2.5, B2.2 Date: 11/12/2009 Location(s): Meridian Township, Michigan Office(s): Energy Efficiency and Renewable Energy Initially, the Energy Efficiency and Conservation Block Grant funds will be used to retrofit Township-owned buildings and facilities. As energy savings and utility rebates replenish the fund, additional improvements will be made. Ten buildings have been assessed and over two dozen improvements have been identified with reasonable payback periods. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-000070.pdf More Documents & Publications CX-002413: Categorical Exclusion Determination CX-000062: Categorical Exclusion Determination

380

Installing and Maintaining a Small Wind Electric System | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Installing and Maintaining a Small Wind Electric System Installing and Maintaining a Small Wind Electric System Installing and Maintaining a Small Wind Electric System July 2, 2012 - 8:22pm Addthis Installing and Maintaining a Small Wind Electric System What does this mean for me? When installing a wind system, the location of the system, the energy budget for the site, the size of the system, and the height of the tower are important elements to consider. Deciding whether to connect the system to the electric grid or not is also an important decision. If you went through the planning steps to evaluate whether a small wind electric system will work at your location, you will already have a general idea about: The amount of wind at your site The zoning requirements and covenants in your area The economics, payback, and incentives of installing a wind system

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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

U.S. Department of Energy NEPA Categorical Exclusion Determination Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Project Title: La Puente City Hall HVAC System (1.1) Project Location: California City of LaPuente Proposed Action or Project Description: RIN#: ARRA Project: The City of La Puente will be replacing an antiquated heating and cooling system (1966) with a modern energy efficient system. The City will initiate the project immediately upon approval. The estimated payback period is expected to be 5 to 6 years and the City estimates a savings of 88,020 Kwh per year. Class of Action(s) Applied: x- 82.5 Safety and environmental improvements of a facility. replacement/upgrade of facility components X- 85.1 Actions to conserve energy *-For the complete DOE National Environmental Policy Act regulations regarding categorical exclusions, see Subpart D of 10 CFRIO 21 Click Here

382

A Viewgraph from the Director  

NLE Websites -- All DOE Office Websites (Extended Search)

2 2 A Viewgraph from the Director ...no one foresaw that the new cores would reveal a climatic flickering of great frequency and magnitude... Art Rosenfeld Global Warming Warning: Don't Fool with the Climate I am pleased to be able to bring you this column for the premier issue of our newsletter because it's an opportunity to present the Center's current favorite viewgraph. I hope that readers who decide the information presented here is useful will pass it along to others. Everything we develop at the Center, from hardware to policy, is aimed at saving energy and money through investments that will pay for themselves in a short time. In a rational market, these ideas sell themselves. But we now know that even before the 1973 oil embargo, when the payback time for

383

The Bright Lights in New York Could Be Solar | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The Bright Lights in New York Could Be Solar The Bright Lights in New York Could Be Solar The Bright Lights in New York Could Be Solar September 4, 2012 - 12:29pm Addthis The NYC Solar Map allows users to estimate the solar energy potential for every building in New York City’s five boroughs. The NYC Solar Map allows users to estimate the solar energy potential for every building in New York City's five boroughs. Minh Le Minh Le Program Manager, Solar Program What is the New York City Solar Map The New York City Solar Map is an interactive online tool that allows users to estimate the solar energy potential for every building in New York City. The map also highlights existing solar installations, displays real-time solar energy production citywide, and allows users to estimate the costs, incentives, and payback period for investing in solar.

384

Cape Light Compact - Commercial, Industrial and Municipal Buildings Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Cape Light Compact - Commercial, Industrial and Municipal Buildings Cape Light Compact - Commercial, Industrial and Municipal Buildings Energy Efficiency Rebate Program Cape Light Compact - Commercial, Industrial and Municipal Buildings Energy Efficiency Rebate Program < Back Eligibility Commercial Industrial Local Government Savings Category Heating & Cooling Commercial Heating & Cooling Heating Cooling Manufacturing Other Construction Heat Pumps Appliances & Electronics Commercial Lighting Lighting Commercial Weatherization Water Heating Maximum Rebate Retrofit: 50% of cost of upgraded equipment, or an amount that buys down the cost of the project to a 1.5 year simple payback. New Construction: 70% of incremental cost of higher efficiency equipment, or an amount that buys down the incremental investment to a 1.5 year simple

385

New Jersey SmartStart Buildings - New Construction and Retrofits |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

You are here You are here Home » New Jersey SmartStart Buildings - New Construction and Retrofits New Jersey SmartStart Buildings - New Construction and Retrofits < Back Eligibility Commercial Fed. Government Industrial Institutional Local Government Nonprofit Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Heating Cooling Manufacturing Other Construction Heat Pumps Appliances & Electronics Commercial Lighting Lighting Water Heating Maximum Rebate General: incentives may be limited to $500,000 per utility account per year. Custom Measures: limited to lesser of $0.16/kWh or $1.60/therm saved annually; 50% of total costs; or buydown to a 1-year payback period Program Info Funding Source New Jersey Societal Benefits Charge (public benefits fund)

386

Newsletter12.09  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

knowledge of the LEED sys- knowledge of the LEED sys- tems and principles. Appli- cation of these techniques produces lower-than- industry-standard opera- tional costs and often addi- tional economic payback in the form of employee pro- ductivity gains incurred as a result of working in a health- ier environment. Studies have suggested that an initial up-front investment of two percent extra will yield more than ten times the initial in- vestment over the life of the building. [2] Be ready to apply these tech- niques to your project. The next offering of LEED for New Construction and Exist- ing Buildings is planned for May 18-19, 2010, in Wash- ington, DC. By Cynthia L. Hunt, P.E., LEED

387

Estimate and Analyze Greenhouse Gas Mitigation Strategy Implementation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Estimate and Analyze Greenhouse Gas Mitigation Strategy Estimate and Analyze Greenhouse Gas Mitigation Strategy Implementation Costs Estimate and Analyze Greenhouse Gas Mitigation Strategy Implementation Costs October 7, 2013 - 10:18am Addthis Analyzing the cost of implementing each greenhouse gas (GHG) mitigation measure provides an important basis for prioritizing different emission reduction strategies. While actual costs should be used when available, this guidance provides cost estimates or considerations for the major emission reduction measures to help agencies estimate costs without perfect information. Cost criteria the agency may consider when prioritizing strategies include: Lifecycle cost Payback Cost effectiveness ($ invested per MTCO2e, metric tonne carbon dioxide equivalent avoided). Implementation costs should be analyzed for each emissions source:

388

Untitled  

U.S. Energy Information Administration (EIA) Indexed Site

Executive Summary Executive Summary Potential Savings The overwhelming majority of lights in residential households are incandescent--the least energy efficient of all light types (Figure ES1.). If households replaced the most intensively used bulbs with compact fluorescent bulbs, they would see a sizable savings in their electric bills. The total U.S. household energy that would be saved by replacing all incandescent bulbs used 4 or more hours per day would be 31.7 billion kilowatthours (kWh) annually, or 35 percent of all electricity used for residential lighting. The amount of time it takes for households to see a simple payback from compact fluorescent bulbs depends on the price of electricity. Assuming a 26-watt compact fluorescent bulb that costs 22 dollars, an average sized

389

Financing Energy Efficiency  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Stakeholders Meeting Stakeholders Meeting March 1, 2012 Laurence Doxsey, Director, Office of Environmental Policy  San Antonio Energy Financing Efforts are mostly recent - post 2008 recession  Various methods attempted  On-Bill Financing  Revolving Loan Fund  Loan Loss Reserve  Interest Rate BuyDown  Initially Active with PACE * City conducted consultant study on the PAYS® (Pay As You Save) * Needed utility bill technology improvements created initial postponement * Public funds for private benefit issue has to be resolved in San Antonio  City Lights  0% interest for lighting upgrades for small businesses  Quick payback on lighting allows fund to be replenished quickly and thereby maintain activity  City Lights experience illustrated the low risk

390

Industrial Assessment Centers Help Students, Communities Learn About Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Industrial Assessment Centers Help Students, Communities Learn Industrial Assessment Centers Help Students, Communities Learn About Energy Efficiency Industrial Assessment Centers Help Students, Communities Learn About Energy Efficiency March 9, 2011 - 10:42am Addthis April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs How does it work? Assessments are performed by one of 26 local teams of engineering faculty and students. Assessments include a site visit where students take engineering measurements as a basis for recommendations. The team performs a detailed analysis for specific recommendations with cost, performance and payback time estimates. The Industrial Technologies Program (ITP) is part of the Department's Office of Energy Efficiency and Renewable Energy. A program of the ITP, the

391

Traction Drive Systems Breakout  

NLE Websites -- All DOE Office Websites (Extended Search)

Traction Drive Systems Breakout Traction Drive Systems Breakout John M. Miller, PhD, PE, F.IEEE, F.SAE Oak Ridge National Laboratory Facilitator July 24, 2012 EV Everywhere Grand Challenge Vehicle Technologies Program - Advanced Power Electronics and Electric Motors eere.energy.gov EV Everywhere Traction Drive System * DOE goals for Electric Traction Drive System (TDS) innovations must be disruptive innovation focused to meet the CY2022 price target ($20,000 $25,000) for a mid-sized 5 passenger sedan having 5 year simple payback. Enhanced Efficiency Reduced Cost Traction Drive System EETT Roadmap: "Therefore, research is needed to develop technologies that are less expensive and, at the same time, smaller, lighter, more efficient, and equally reliable as conventional automotive technologies. "

392

Ohio | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Dayton Power and Light - Business and Government Energy Efficiency Rebate Dayton Power and Light - Business and Government Energy Efficiency Rebate Program Dayton Power and Light's (DP&L) non-residential electricity customers are eligible for energy efficient technology rebates. Rebates are available for energy efficiency measures added to an existing system when a customer retires usable electric-powered equipment and replaces it with a more efficient model. Customers must demonstrate permanency or sustainability of savings over the payback period. Equipment must exceed minimum federal and state mandated efficiency standards. Rebates will be paid within 30 days of an inspection of the system. October 16, 2013 Consolidated Electric Cooperative - Heat Pump and Water Heating Rebates Consolidated Electric Cooperative provides rebates to residential customers

393

Building Energy Software Tools Directory: ENFORMA  

NLE Websites -- All DOE Office Websites (Extended Search)

ENFORMA ENFORMA ENFORMA logo. Includes the MicroDataLogger portable data acquisition equipment and HVAC and Lighting Analyzer software. ENFORMA is designed to cost-effectively gather data and convert it into information about building performance. ENFORMA provides a unique solution that can gather the data at a minimal cost and help you determine solutions to typical building problems. This detailed diagnostic information is the key that allows you to improve upon your current services or expand into new business opportunities. ENFORMA solutions typically result in projects with paybacks of less than one year. ENFORMA solutions can help you improve upon or begin doing the following services: Performance Guarantees, Comfort Trouble Shooting, HVAC Operation Outsourcing, Commissioning, Accurate Equipment Tune-ups, and Energy

394

DOE/EEI Model Agreement Explanation  

NLE Websites -- All DOE Office Websites (Extended Search)

EEI Model Agreement Explanation EEI Model Agreement Explanation Introduction The attached document serves as a model for the development of formal agreements between a Federal civilian Agency and its serving Utility for the procurement of energy services on a "designated" or "sole" source basis. The Energy Policy Act of 1992 ("EPAct") establishes as a federal government goal, identifying and implementing all energy and water conservation projects with a payback of ten years or less. Executive Order 13123, signed on June 3, 1999, requires all federal agencies to achieve a 30% reduction in facilities energy use and a 20% improvement in industrial energy efficiency by the year 2005, relative to 1990 levels. The Order requires a 35% reduction in energy use at facilities and a 25% improvement in industrial energy

395

TransForum - Special Issue: Batteries - August 2010  

NLE Websites -- All DOE Office Websites (Extended Search)

Special Issue: Batteries-August 2010 Special Issue: Batteries-August 2010 RESEARCH REVIEWS 2 China's Minister of Science and Technology Visits Argonne 3 Testing the Tesla 4 Six Myths about Plug-in Hybrid Electric Vehicles 6 Charging Ahead: Taking PHEVs Farther on a Single Battery Charge 7 Argonne to Explore Lithium-air Battery 8 Argonne's Lithium-ion Battery Research Produces New Materials and Technology Transfer Successes 11 New Battery Facilities Will Help Accelerate Commercialization of Technologies 12 Argonne Charges Ahead with Smart Grid Research 14 Center for Electrical Energy Storage Promises Advances in Transportation Technologies 15 PHEVs Need Further Research for Acceptable Payback 16 PUTTING ARGONNE'S RESOURCES TO WORK FOR YOU Lithium-ion Battery Research page 8 Minister of Science and

396

The Compelling Case for NGVs  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Compelling Case for NGVs Compelling Case for NGVs Utilities and Federal Agencies Working Together to Make the Most of The Opportunity Stephe Yborra Director of Market Analysis, Education & Communications Clean Vehicle Education Foundation Director of Market Development NGVAmerica A Compelling Case for Natural Gas Vehicles * Natural gas is America's fuel: America's resource, America's jobs. Reduced reliance on volatile foreign oil supplies = Energy Security. * A wide variety of NGVs are available from OEMs and SVMs. Natural gas engines emit far less emissions than diesel or gasoline and their performance now match/exceed diesel, gasoline * Significantly lower fuel / O&M costs generate substantial life-cycle savings and, in many cases, provide fast payback of initial purchase

397

Building Efficiency Report | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Building Efficiency Report Building Efficiency Report Building Efficiency Report Buildings use 40% of total energy in the United States - more than either the industrial or transportation sectors. Technical improvements and cost reductions (see Appendix 3) in building materials, components and energy management systems are enabling progress in reducing the nation's energy consumption and consequent greenhouse gas emissions with payback periods as low as 24 months. With responsibility and funding for the nation's largest set of building energy-related research, development and deployment programs, the Department of Energy (DOE) should lead efforts to ensure building energy efficiency is a national priority. One of the most important things DOE can do to reduce the country's energy use and dependence on fossil fuels is to actively lead the national

398

Energy Sources | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Local Option - Clean Energy Development Boards Local Option - Clean Energy Development Boards '''''Note: The Federal Housing Financing Agency (FHFA) issued a [http://www.fhfa.gov/webfiles/15884/PACESTMT7610.pdf statement] in July 2010 concerning the senior lien status associated with most PACE programs. In response to the FHFA statement, most local PACE programs have been suspended until further clarification is provided. ''''' October 16, 2013 Local Government Energy Loan Program Through a public-private partnership with PowerSouth, Alabama's Local Government Energy Loan Program offers zero-interest loans to local governments, K-12 schools, and public colleges and universities for renewable energy systems and energy efficiency improvements that will eventually have a payback through utility savings. Under the program,

399

Progress Update  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Update Update FALL 2013 Learn more at eere.energy.gov/manufacturing/tech_assistance/betterplants/ The Better Buildings, Better Plants Program is a national partnership initiative that challenges industry to set and meet ambitious energy-saving targets. Across the United States, manufacturers spend more than $200 billion each year to power their plants. 1 The industrial sector has the potential to invest more than $100 billion in cost-effective, energy-efficiency technologies by 2020, which would result in annual energy savings of almost $50 billion. 2 U.S. Department of Energy (DOE) data demonstrates that many facilities can save 15% or more annually through projects with payback periods of less than three years. 3 Better Plants Partners are working with DOE

400

Building Energy Software Tools Directory: BLCC  

NLE Websites -- All DOE Office Websites (Extended Search)

BLCC BLCC BLCC logo. Provides comprehensive economic analysis of proposed capital investments that are expected to reduce long-term operating costs of buildings or buildings systems. BLCC5 and BLCC4 are the main programs in a set of six National Institute of Standards computer programs that are especially useful for evaluating energy and water conservation projects in buildings. The programs calculate Lowest Life-Cycle Cost, Net Savings, Savings-to-Investment Ratio, Adjusted Internal Rate of Return, and Payback Period. The recently released BLCC5 is a windowed version of the DOS-based BLCC4. It contains modules to evaluate agency-funded projects according to 10CFR436A and projects that are financed through ESPC or utility contracts as directed by Executive Order 13123. The remaining modules, now in BLCC4

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Retro-Commissioning Increases Data Center Efficiency at Low Cost  

NLE Websites -- All DOE Office Websites (Extended Search)

Achieved at SRS Basic Retro-Cx: 1. Eliminated electric reheat. 2. Turned off humidification devices. 3. Tuned floor tile airflow. 4. Turned off three CRAC units. Total estimated savings ≅ 1,400,000 kWh/year Retro-Cx cost at SRS: Engineering consultant: preliminary, on-site, and follow-up work including data measurements and retrieval. SRS on-site facilities personnel and engineering support. Total estimated cost ≅ $25,000 Simple Payback at SRS: Estimated, at $0.045/kWh = 2.5 months. taken in the SRS program addressed retro-commissioning. Retro-Commissioning In general, retro-commissioning (Retro- Cx) is a systematic, documented process

402

Superior Energy Performance: Getting the Most Value from ISO 50001-Energy Management Systems  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Superior Energy Performance Superior Energy Performance cm : Getting the Most Value from ISO 50001- Energy Management Systems US Department of Energy Advanced Manufacturing Office March 13, 2012 Aimee McKane Lawrence Berkeley National Laboratory 2 | Industrial Energy Efficiency eere.energy.gov * Time and again, industrial energy efficiency has been demonstrated to be cost effective while having a positive effect on productivity * Despite this, energy efficiency improvements with very favorable payback periods often do not get implemented * Even projects that are implemented may not be sustained due to lack of supportive operational and maintenance practices Problem: Energy efficiency is not integrated into daily management practices. Solution: Staff at all levels within an organization need to be

403

photovoltaic | OpenEI  

Open Energy Info (EERE)

photovoltaic photovoltaic Dataset Summary Description Global PV grid parity and market potential. Data is courtesy of Sean Ong. Source National Renewable Energy Laboratory Date Released Unknown Date Updated Unknown Keywords grid Parity Payback photovoltaic price PV Residential Data text/csv icon globalgridparity.csv (csv, 4.8 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Creative Commons CCZero Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote Overall rating Average vote Your vote Comments Login or register to post comments If you rate this dataset, your published comment will include your rating.

404

Audit Report: DOE/IG-0869 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Report: DOE/IG-0869 Report: DOE/IG-0869 Audit Report: DOE/IG-0869 August 31, 2012 Opportunities for Energy Savings at Department of Energy Facilities Our review disclosed that the Department had not always effectively identified and implemented energy-saving opportunities through facility evaluations and electricity metering. Three of the five sites we reviewed (Brookhaven National Laboratory, Oak Ridge National Laboratory, and Los Alamos National Laboratory) had not always identified or implemented low- and no-cost, quick payback energy conservation measures discovered during facility evaluations. In addition, two of the five sites (Oak Ridge National Laboratory and the Y-12 National Security Complex) had not fully evaluated existing buildings to determine, among other things, whether

405

Audit Report: DOE/IG-0869 | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

69 69 Audit Report: DOE/IG-0869 August 31, 2012 Opportunities for Energy Savings at Department of Energy Facilities Our review disclosed that the Department had not always effectively identified and implemented energy-saving opportunities through facility evaluations and electricity metering. Three of the five sites we reviewed (Brookhaven National Laboratory, Oak Ridge National Laboratory, and Los Alamos National Laboratory) had not always identified or implemented low- and no-cost, quick payback energy conservation measures discovered during facility evaluations. In addition, two of the five sites (Oak Ridge National Laboratory and the Y-12 National Security Complex) had not fully evaluated existing buildings to determine, among other things, whether building systems such as heating and lighting were operating as intended,

406

US DOE Industrial Steam BestPractices Software Tools  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOW RESTRICTED For internal DOW RESTRICTED For internal use only US DOE Industrial Steam BestPractices Software Tools Riyaz Papar, PE, CEM Hudson Technologies Company Phone: (281) 298 0975 Email: rpapar@hudsontech.com - Agenda * Introduction * Steam System BP Tools Suite - SSST - SSAT - 3EPlus * Q & A 1 Steam System Management Objective: Minimize Steam Use, Energy Losses And Most Importantly STEAM COST!! Steam Market Assessment Takeaways * Fuel savings estimates - individual projects - ranged from 0.6 percent to 5.2 percent * Estimated payback periods generally very attractive - Ranged from 2 to 34 months - Most less than 2 years * Potential steam savings in target industries - over 12 percent of fuel use 2 Promising Areas To Achieve Steam Energy and Cost Savings? Use Steam System Scoping Tool (SSST) For

407

Building Efficiency Report | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Building Efficiency Report Building Efficiency Report Building Efficiency Report Buildings use 40% of total energy in the United States - more than either the industrial or transportation sectors. Technical improvements and cost reductions (see Appendix 3) in building materials, components and energy management systems are enabling progress in reducing the nation's energy consumption and consequent greenhouse gas emissions with payback periods as low as 24 months. With responsibility and funding for the nation's largest set of building energy-related research, development and deployment programs, the Department of Energy (DOE) should lead efforts to ensure building energy efficiency is a national priority. One of the most important things DOE can do to reduce the country's energy use and dependence on fossil fuels is to actively lead the national

408

California | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Palo Alto Utilities - Commercial and Non-Profit Efficiency Loan Palo Alto Utilities - Commercial and Non-Profit Efficiency Loan Program (California) City of Palo Alto Utilities (CPAU) provides 0% loans to business and non-profit customers to offset the need for upfront energy efficiency investments in qualifying facilities. Loans are only provided to electric customers and natural gas projects do not qualify. Members have up to 5 years to repay loans, however repayment timelines are based upon the simple payback of the implemented measures. Loans from $5,000 -$50,000 are available for qualifying projects. Projects must also qualify for CPAU rebates which count against the total loan amount. October 16, 2013 City of Palo Alto Utilities - Commercial Energy Efficiency Rebate Program (California) City of Palo Alto Utilities, through the Commercial Advantage Program

409

Energy Star Building Upgrade Manual Investment Analysis Chapter 3  

NLE Websites -- All DOE Office Websites (Extended Search)

3. Investment 3. Investment Analysis Revised July 2007 3. Overview 2 3.2 Analytic Conventions 2 3.3 Cash-Flow Analysis Tools 2 Payback Period 3 Net Present Value 4 Internal Rate of Return 6 3.4 Selecting an Analysis Tool 7 3.5 The Investment Analysis Process 8 Choose the Right Time Frame 8 Consider All of the Impacts on Cash Flow 8 Account for Interactions Among Measures 9 Include Anticipated Price Changes 10 Adjust for Taxes 10 Consider Sensitivity Analysis 10 3.6 Other Considerations  Qualitative Assessments 11 Effect of Energy Performance on Shareholder Value 11 3.7 Summary  Bibliography 2 Glossary G- ENERGY STAR ® Building Manual 2 3. Investment Analysis 3. Overview All types of organizations, for-profit and not-for-profit alike, should analyze prospective invest-

410

Building Energy Software Tools Directory: Home Energy Tune-uP  

NLE Websites -- All DOE Office Websites (Extended Search)

Home Energy Tune-uP Home Energy Tune-uP Home Energy Tune-uP's® audit software identifies cost-effective opportunities for energy efficient upgrades in the home. It analyzes data collected from the home, using approximately 1,000 calculations to produce energy-saving recommendations. The software generates a report itemizing recommended improvements and their costs, energy savings, and payback periods. The software produces a second table of the recommended group of improvements that will pay for themselves when financed. Using a selected finance rate and term, the software identifies the combination of upgrades that will save more on the monthly energy bills than they cost in finance charges. When homeowner's see that a down payment is not required and that they can realize a net savings on their investment, they are likely to be

411

Hydrogen & Fuel Cells | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

City of Chandler - Green Building Requirement for City Buildings City of Chandler - Green Building Requirement for City Buildings The mayor and city council of Chandler, AZ adopted Resolution 4199 in June 2008, establishing a requirement for all new occupied city buildings larger than 5,000 square feet to be designed and built to achieve the Silver level of the Leadership in Energy and Environmental Design (LEED) certification program, and to strive for higher levels of certification whenever project resources and conditions permit. To maintain cost control, city building projects may be exempt from the requirement if the payback period necessary to recover the initial costs is more than ten years. October 16, 2013 City of Boston - Green Power Purchasing In April 2007, Boston Mayor Thomas Menino issued an executive order that

412

DOE/EEI Model Agreement Explanation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOE/EEI Model Agreement Explanation DOE/EEI Model Agreement Explanation Introduction The attached document serves as a model for the development of formal agreements between a Federal civilian Agency and its serving Utility for the procurement of energy services on a "designated" or "sole" source basis. The Energy Policy Act of 1992 ("EPAct") establishes as a federal government goal, identifying and implementing all energy and water conservation projects with a payback of ten years or less. Executive Order 13123, signed on June 3, 1999, requires all federal agencies to achieve a 30% reduction in facilities energy use and a 20% improvement in industrial energy efficiency by the year 2005, relative to 1990 levels. The Order requires a 35% reduction in energy use at facilities and a 25% improvement in industrial energy

413

Campus Carbon Calculator | Open Energy Information  

Open Energy Info (EERE)

Campus Carbon Calculator Campus Carbon Calculator Jump to: navigation, search Tool Summary Name: Campus Carbon Calculator Agency/Company /Organization: Clean Air-Cool Planet Phase: Create a Vision, Determine Baseline, Develop Goals User Interface: Spreadsheet Website: www.cleanair-coolplanet.org/toolkit/inv-calculator.php The Campus Carbon Calculator(tm), Version 6.4, is now available for download. Version 6.4 includes new features, updates and corrections - including greatly expanded projection and solutions modules, designed to aid schools that have completed greenhouse gas inventories in developing long term, comprehensive climate action plans based on those inventories. The new modules facilitate analysis of carbon reduction options, determining project payback times, net present value, cost per ton reduced,

414

Definition: Automatic Generation Control | Open Energy Information  

Open Energy Info (EERE)

Automatic Generation Control Automatic Generation Control Jump to: navigation, search Dictionary.png Automatic Generation Control Equipment that automatically adjusts generation in a Balancing Authority Area from a central location to maintain the Balancing Authority's interchange schedule plus Frequency Bias. AGC may also accommodate automatic inadvertent payback and time error correction.[1] View on Wikipedia Wikipedia Definition Related Terms system, power, electricity generation, load, frequency bias, balancing authority, balancing authority area, smart grid References ↑ Glossary of Terms Used in Reliability Standards An inline LikeLike UnlikeLike You like this.Sign Up to see what your friends like. Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Automatic_Generation_Control&oldid=502513"

415

Navy Techval Program  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FUPWG FUPWG October 20, 2010 Rapid City, SD Paul Kistler, PE CEM NAVFAC Engineering Service Center Port Hueneme CA Navy Techval Program Techval 2 Navy Techval Program Technologies *Work Station Specific Lighting *CO2 HVAC control What is it, how does it work? Data from projects Where does it work best? 3 What Is It? 1. Pendant light used mainly in open cubicles 2. Each cubicle has own dedicated fixture 3. One up light 4. Two down lights 5. Down light dimmed by the occupant 6. Up light on time clock 7. Occupancy sensor 8. Day light sensor 9. T5 5000K 10.Does not replace task lighting Work Station Specific Lighting 4 Work Station Specific Lighting Projected Savings 1. Projected payback is 17 years 2. Projected pay back on incremental cost is 3 to 4 years 3. Recent projects indicate a total savings of 70% lighting

416

MassSAVE (Electric) - Commercial Retrofit Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

You are here You are here Home » MassSAVE (Electric) - Commercial Retrofit Program MassSAVE (Electric) - Commercial Retrofit Program < Back Eligibility Commercial Construction Industrial Installer/Contractor Institutional Local Government Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Manufacturing Other Construction Heat Pumps Heating Appliances & Electronics Commercial Lighting Lighting Maximum Rebate 50% of cost of upgraded equipment, or an amount that buys down the cost of the project to a 1.5 year simple payback. Program Info Start Date 1/1/2011 State Massachusetts Program Type Utility Rebate Program Rebate Amount Fluorescent Systems: $10-$50/fixture High and Low Bay Fluorescents: Up to $100/fixture LED Interior: $15-$50/fixture

417

Engineered Geothermal Systems Energy Return On Energy Investment  

NLE Websites -- All DOE Office Websites (Extended Search)

EGS EROI - 1 EGS EROI - 1 Engineered Geothermal Systems Energy Return On Energy Investment A.J. Mansure, Geothermal Consultant, ajm@q.com Albuquerque, NM 12/10/2012 Key Words: energy, EROI, EGS, efficiency, energy investment, energy return, input energy, energy payback, and net energy. Abstract Energy Return On Investment (EROI) is an important figure of merit for assessing the viability of energy alternatives. Too often comparisons of energy systems use "efficiency" when EROI would be more appropriate. For geothermal electric power generation, EROI is determined by the electricity delivered to the consumer compared to the energy consumed to construct, operate, and decommission the facility. Critical factors in determining the EROI of Engineered Geothermal Systems (EGS

418

Audit Report - Opportunities for Energy Savings at Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Report - Opportunities for Energy Savings at Department of Report - Opportunities for Energy Savings at Department of Energy Facilities, DOE/IG-0869 Audit Report - Opportunities for Energy Savings at Department of Energy Facilities, DOE/IG-0869 Our review disclosed that the Department had not always effectively identified and implemented energy-saving opportunities through facility evaluations and electricity metering. Three of the five sites we reviewed (Brookhaven National Laboratory, Oak Ridge National Laboratory, and Los Alamos National Laboratory) had not always identified or implemented low- and no-cost, quick payback energy conservation measures discovered during facility evaluations. In addition, two of the five sites (Oak Ridge National Laboratory and the Y-12 National Security Complex) had not fully

419

U.S. Department of Energy Buildings Technologies Program: Better Buildings, Brighter Future  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

new technologies and practices, energy-efficient new technologies and practices, energy-efficient buildings will be the new standard for residents in all U.S. climate zones. DOE and its partners are pursuing a portfolio of research to make it happen. Better Buildings, Brighter Future Innovative Building Technologies and Practices Save Energy and Money Buildings use more energy than any other sector of the U.S. economy, consuming more than 70 percent of electricity and over 50 percent of natural gas. Investing in energy-efficient buildings yields: * Cost savings for American homeowners and businesses; * Reductions in peak demand, providing the energy needed for a strong economy with fewer new power plants; and * Expeditious and sustained reductions in carbon dioxide emissions-with fast paybacks

420

National Grid (Electric) - Non-Residential Energy Efficiency Program  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Non-Residential Energy Efficiency Non-Residential Energy Efficiency Program (Upstate New York) National Grid (Electric) - Non-Residential Energy Efficiency Program (Upstate New York) < Back Eligibility Commercial Industrial Institutional Local Government Nonprofit Schools State Government Savings Category Manufacturing Other Appliances & Electronics Commercial Lighting Lighting Program Info State New York Program Type Utility Rebate Program Rebate Amount Custom Large Business Energy Initiative Program: Technical Service, Financial Services, and 50% of the project cost Custom Engineering Study: Up to 50% of the project cost Custom Small Business: Up to 70% of project costs: remaining share financed by National Grid with a 0% interest loan: payback time of up to 24 months. Linear/Parabolic/Recessed Fluorescent Fixtures: $15-$50/fixture

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Building America Efficient Solutions for New Homes Case Study: Habitat for Humanity Palm Beach County, West Palm Beach, Florida  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2011, Building America assisted Habitat for Humanity of Palm 2011, Building America assisted Habitat for Humanity of Palm Beach County (HabitatPBC) in completing three high-performance prototype houses that achieved HERS index scores of less than 60, which is about 30% better than typical HabitatPBC construction, at a payback of less than 4 years. The HabitatPBC is planning to implement these strategies in future homes they build. This has the potential for significant and affordable energy savings as HabitatPBC has built more than 111 affordable houses and served an additional 125 families worldwide through their affiliation with HFH International (today serving >20 families a year). Building America (through the Florida Solar Energy Center, a member of the Pacific Northwest National Laboratory team) achieved

422

price | OpenEI  

Open Energy Info (EERE)

price price Dataset Summary Description Global PV grid parity and market potential. Data is courtesy of Sean Ong. Source National Renewable Energy Laboratory Date Released Unknown Date Updated Unknown Keywords grid Parity Payback photovoltaic price PV Residential Data text/csv icon globalgridparity.csv (csv, 4.8 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Creative Commons CCZero Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote Overall rating Average vote Your vote Comments Login or register to post comments If you rate this dataset, your published comment will include your rating. Dataset Summary

423

Lessons Learned: Milwaukees Wind Turbine Project  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

City of Milwaukee: City of Milwaukee: Wind Turbine Project Matt Howard, Environmental Sustainability Director Project Best Practices * Transparency and information * Find the most appropriate site - both wind profile and building load * Stay away from neighborhoods and iconic civic sites * No surprises for locally elected officials * Active public engagement * Know the facts; kill the myths; control the narrative * Tie to local economic development * Cost-benefit analysis, budgeting, payback, over and over and over... Project Basics * Proposal to site ONE, small-scale wind turbine on City-owned building on Port Authority property * 2323 S. Lincoln Memorial Dr., Port Administration Building * Turbine will power ALL of Port Admin. Bldg's needs * Best estimate of total cost of installation/operation: $550,000-$600,000

424

grid | OpenEI  

Open Energy Info (EERE)

1 1 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142278981 Varnish cache server grid Dataset Summary Description Global PV grid parity and market potential. Data is courtesy of Sean Ong. Source National Renewable Energy Laboratory Date Released Unknown Date Updated Unknown Keywords grid Parity Payback photovoltaic price PV Residential Data text/csv icon globalgridparity.csv (csv, 4.8 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Creative Commons CCZero Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote

425

The Bright Lights in New York Could Be Solar | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The Bright Lights in New York Could Be Solar The Bright Lights in New York Could Be Solar The Bright Lights in New York Could Be Solar September 4, 2012 - 12:29pm Addthis The NYC Solar Map allows users to estimate the solar energy potential for every building in New York City’s five boroughs. The NYC Solar Map allows users to estimate the solar energy potential for every building in New York City's five boroughs. Minh Le Minh Le Program Manager, Solar Program What is the New York City Solar Map The New York City Solar Map is an interactive online tool that allows users to estimate the solar energy potential for every building in New York City. The map also highlights existing solar installations, displays real-time solar energy production citywide, and allows users to estimate the costs, incentives, and payback period for investing in solar.

426

MassSAVE (Electric) - Commercial New Construction Program | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

MassSAVE (Electric) - Commercial New Construction Program MassSAVE (Electric) - Commercial New Construction Program MassSAVE (Electric) - Commercial New Construction Program < Back Eligibility Commercial Construction Industrial Installer/Contractor Institutional Local Government Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Manufacturing Other Construction Heat Pumps Heating Appliances & Electronics Commercial Lighting Lighting Maximum Rebate 70% of incremental cost of higher efficiency equipment, or an amount that buys down the incremental investment to a 1.5 year simple payback. Program Info State Massachusetts Program Type Utility Rebate Program Rebate Amount Custom Lighting: $0.40 - $1.00/watt saved High Efficiency Fluorescent Systems: $10-$35/fixture High and Low Bay Fluorescents: $20 - $40/fixture

427

Energy Smart Federal Partnership: Your Steps to Energy Savings  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Smart Federal Partnership: Your Steps to Energy Savings Energy Smart Federal Partnership: Your Steps to Energy Savings 1. Review your facilities and commitment to efficiency investments  Communicate with key facilities staff including the people that will approve the energy project budgets.  Determine if the energy-saving opportunities meet your agency's requirements for investment (such as project payback) and are likely to receive funding approval.  Contact your local serving utility or utilities to discuss your plans and understand the process for obtaining financial assistance (incentives). If you are unsure who your serving utility is, please contact BPA and we will help. Another good resource for locating utilities can be found our website: http://www.bpa.gov/Energy/N/UtilityLocator.cfm.

428

CX-002094: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

4: Categorical Exclusion Determination 4: Categorical Exclusion Determination CX-002094: Categorical Exclusion Determination Energy Reduction Measures At City Buildings-Retrofits CX(s) Applied: B2.2, B2.5, A1, B1.3, B5.1 Date: 04/20/2010 Location(s): Bartlett, Tennessee Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant for: Replace 10 Heating Ventilation and Air Conditioning (HVAC) roof top units at city hall (payback estimated at 6.93 years)- preparation of a bid package ($14,500), competitive solicitation for a contractor ($n/a), and construction ($158,000). All funds will be applied to contractor personnel (retaining existing jobs). This work will also rezone each unit to catch up with many interior renovations, which have taken place over the years. We anticipate

429

Pacific Power - Energy FinAnswer | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Industrial Industrial Institutional Local Government Nonprofit State Government Savings Category Other Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Appliances & Electronics Commercial Lighting Lighting Maximum Rebate Retrofit: 60% of project cost Lighting: 50% of savings Incentives may not be available to reduce the project simple payback below one year Program Info State District of Columbia Program Type Utility Rebate Program Rebate Amount $0.15/kWh annual energy savings + $50/kW average monthly demand savings Provider Pacific Power Pacific Power's Energy FinAnswer program provides cash incentives to help its commercial and industrial customers improve their heating, cooling, refrigeration, compressed air, lighting, pumping or industrial processes.

430

Lamb Energy | Open Energy Information  

Open Energy Info (EERE)

Lamb Energy Lamb Energy Jump to: navigation, search Name Lamb Energy Place Riverside, California Zip 92507 Sector Carbon, Renewable Energy Product String representation "Lamb Energy pro ... ancial payback." is too long. Coordinates 33.98163°, -117.373879° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.98163,"lon":-117.373879,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

431

Empire District Electric - Commercial and Industrial Efficiency Rebates |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Empire District Electric - Commercial and Industrial Efficiency Empire District Electric - Commercial and Industrial Efficiency Rebates Empire District Electric - Commercial and Industrial Efficiency Rebates < Back Eligibility Commercial Industrial Institutional Nonprofit Schools Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Other Appliances & Electronics Commercial Lighting Lighting Manufacturing Maximum Rebate 20,000 per program year per customer Program Info State Missouri Program Type Utility Rebate Program Rebate Amount Lighting: 2 - 50 per fixture Lighting Power Density: 1 per watt per square foot Lighting Sensors: 20 - 50 per sensor Central AC: 73 - 92 per ton Motors: 50 - 130 per motor Energy Audit: 50% of cost Custom: Lesser of 50% of incremental cost; 2-year payback equivalent; or

432

Federal Energy Management Program: Technology Deployment List  

NLE Websites -- All DOE Office Websites (Extended Search)

Deployment List Deployment List Technology Ranking Criteria Technologies featured in the Technology Deployment List were ranked by: Federal Impact: Combination of energy savings potential and applicability in the Federal market (50% weighting) Cost Effectiveness: Relative cost of the implementation and average expected return typically reported in case studies as simple payback period (30% weighting) Probability of Success: Combination of the qualitative characteristics scored separately and averaged to determine probability of success. Criteria include strength of supply chain, knowledge base, implementation difficulty, and customer acceptance (20% weighting). The Federal Energy Management Program's (FEMP) Technology Deployment List features information about promising new and underutilized energy-saving technologies available for Federal and commercial building sector deployment. Common considerations and barriers are also outlined.

433

Energy Assessment Helps Kaiser Aluminum Save Energy and Improve Productivity  

Energy.gov (U.S. Department of Energy (DOE))

This case study describes how a DOE energy assessment at Kaiser Aluminum's extrusion plant in Sherman, Texas, identified significant potential energy savings in its process heating systems. Employees at the Sherman plant wasted no time moving forward with assessment recommendations. First, they adjusted burner controls on one of the main reverberatory melting furnaces to lower excess oxygen levels. They also made some repairs to the furnaces door sill and jamb to prevent cold air from seeping into it. By implementing these measures the plant achieved annual energy savings of approximately 45,000 MMBtu and improved the furnaces energy intensity by 11.1% between 2006 and 2007. With project costs of approximately $28,000 and energy cost savings of $360,000, the simple payback was under 1 month.

434

Case Study- The Challenge: Improving the Performance of a Waste-To-Energy Facility  

Energy.gov (U.S. Department of Energy (DOE))

This case study examines how the City of Long Beach, California, was able to improve the operational efficiency of its Southeast Resource Recovery Facility (SERRF), a recycling and solid waste-to-energy plant. To replace inlet damper control and reduce energy consumption, variable frequency drives (VFDs) were installed on the induced draft fans of three boiler systems. As a result of the retrofit, facility energy consumption was reduced by more than 34 percent (3,661,200 kWh per year), and the facility saved more than $329,500 annually. Taking into consideration a $400,000 California Energy Commission grant, the simple net payback for this project was just under 10 months.

435

Barriers and opportunities: A review of selected successful energy-efficiency programs  

SciTech Connect

In industry, barriers may exist at various points in the decision making process, and in the implementation and management of measures to improve energy efficiency. Barriers may take many forms, and are determined by the business environment and include decision-making processes, energy prices, lack of information, a lack of confidence in the information, or high transaction costs for obtaining reliable information, as well as limited capital availability. Other barriers are the ''invisibility'' of energy efficiency measures and the difficulty of quantifying the impacts, and slow diffusion of innovative technology into markets while firms typically under-invest in R and D, despite the high pay-backs. Various programs try to reduce the barriers to improve the uptake of innovative technologies. A wide array of policies has been used and tested in the industrial sector in industrialized countries, with varying success rates. We review some new approaches to industrial energy efficiency improvement in industrialized countries, focusing on voluntary agreements.

Worrell, Ernst; Price, Lynn

2001-03-20T23:59:59.000Z

436

Utilization of geothermal energy-feasibility study, Ojo Caliente Mineral Springs Company, Ojo Caliente, New Mexico  

SciTech Connect

This report investigates the feasibility of a geothermal heating system at the Ojo Caliente Mineral Springs Co. The geothermal energy will be used to preheat hot water for the laundry facilities and to heat the water for a two-pipe fan coil heating system in the hotel. Present annual heating fuel costs of $11,218 for propane will be replaced by electricity to operate fans and pump at an annual cost of $2547, resulting in a net savings of $8671. Installation costs include $10,100 for a well system, $1400 for a laundry system, and $41,100 for a heating system. With the addition of a 10% design fee the total installation cost is $57,860. Ignoring escalating propane fuel prices, tax credits for energy conservation equipment, and potential funding from the State of New Mexico for a geothermal demonstration project, the simple economic payback period for this project is 6.7 years.

Not Available

1982-04-01T23:59:59.000Z

437

Optimal investment and scheduling of distributed energy resources with uncertainty in electric vehicles driving schedules  

SciTech Connect

The large scale penetration of electric vehicles (EVs) will introduce technical challenges to the distribution grid, but also carries the potential for vehicle-to-grid services. Namely, if available in large enough numbers, EVs can be used as a distributed energy resource (DER) and their presence can influence optimal DER investment and scheduling decisions in microgrids. In this work, a novel EV fleet aggregator model is introduced in a stochastic formulation of DER-CAM [1], an optimization tool used to address DER investment and scheduling problems. This is used to assess the impact of EV interconnections on optimal DER solutions considering uncertainty in EV driving schedules. Optimization results indicate that EVs can have a significant impact on DER investments, particularly if considering short payback periods. Furthermore, results suggest that uncertainty in driving schedules carries little significance to total energy costs, which is corroborated by results obtained using the stochastic formulation of the problem.

Center for Energy and Innovative Technologies; NEC Laboratories America Inc.; Cardoso, Goncalo; Stadler, Michael; Bozchalui, Mohammed C.; Sharma, Ratnesh; Marnay, Chris; Barbosa-Povoa, Ana; Ferrao, Paulo

2013-10-27T23:59:59.000Z

438

Field development of a desiccant-based space-conditioning system for supermarket applications. Annual report, February 1982-January 1983  

SciTech Connect

The use of gas-regenerated desiccant dehumidification systems to provide space-conditioning for supermarkets was investigated. A silica gel-based dehumidification system and related components were installed in a Jewel supermarket as an adjunct to the conventional vapor-compression air-conditioning system. Instrumentation was installed to monitor this hybrid system and to allow performance comparisons with the conventional vapor-compression system operating alone. Data collected were used to develop load models for the building and to correlate indoor and ambient conditions to the energy consumption by the air-conditioning and refrigeration systems. The expected reduction in refrigeration energy consumption with decreasing store humidities was verified. The load models were used in conjunction with system characteristics to obtain cooling season cost projections for both systems operating under different conditions. Initial estimates indicate that payback periods of the hybrid system could be under 1 year.

Cohen, B.M.; Levine, A.H.; Arora, R.

1983-02-01T23:59:59.000Z

439

Cogeneration for supermarkets  

SciTech Connect

The Gas Research Institute's supermarket dehumidification project and assessments of commercial cogeneration found that retail supermarkets represent an opportunity for packaged gas-fueled cogeneration systems. Although not currently large thermal users, supermarkets have several electrical loads that can be replaced with heat-driven absorption and adsorption if the cogeneration package is designed specifically for their needs. Field testing should verify the preliminary estimates of attractive paybacks combined with reliability and ease of operation that are required by supermarket operators. The system under examination provides all of the low and medium temperature refrigeration, most of the space heating, all of the water heating, and some of the electricity for lighting. 4 figures, 2 tables.

Walker, D.; Hynek, S.

1985-08-01T23:59:59.000Z

440

Actions to promote energy-efficient electric motor repair  

Science Journals Connector (OSTI)

Electric motors are repaired 2-3 times over their lifetime. Poor repair practices, particularly widespread in developing countries, can lead to a significant increase in motor losses. It is estimated that worldwide poor repair leads to annual electricity losses of approximately 40 TWh, representing 20 Mtons of CO2 emissions. The main objective of this paper is to provide a technical basis for designing demand side management actions, which address the motor repair market. This paper brings into focus motor repair process trends, energy-efficient motors, typical repair process, actions to promote energy-efficient motor repair, energy-efficient motor rebate schemes to replace old, badly damaged motors and the factors influencing payback. This paper will be useful to energy policy makers, and Demand Side Management (DSM) staff in energy agencies and electric utilities.

Aníbal T. de Almeida; Fernando J.T.E. Ferreira

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Science and society test VI: Energy economics  

Science Journals Connector (OSTI)

Simple numerical estimates are developed in order to quantify a variety of energy economics issues. The Verhulst equation which considers the effect of finite resources on petroleum production is modified to take into account supply and demand economics. Numerical and analytical solutions to these differential equations are presented in terms of supply and demand elasticity functions various finite resources and the rate of increase in fuel costs. The indirect cost per barrel of imported oil from OPEC is shown to be about the same as the direct cost. These effects as well as those of discounted benefits and deregulation are used in a calculation of payback periods for various energy conserving devices. A phenomenological model for market penetration is developed along with the factors for future energy growth rates. A brief analysis of the economic returns of the house doctor program to reprofit houses for energy conservation is presented.

David W. Hafemeister

1982-01-01T23:59:59.000Z

442

Economic, energy and GHG emissions performance evaluation of a WhisperGen Mk IV Stirling engine ?-CHP unit in a domestic dwelling  

Science Journals Connector (OSTI)

Abstract This paper presents an assessment of the energy, economic and greenhouse gas emissions performances of a WhisperGen Mk IV Stirling engine ?-CHP unit for use in a conventional house in the Republic of Ireland. The energy performance data used in this study was obtained from a field trial carried out in Belfast, Northern Ireland during the period June 2004July 2005 by Northern Ireland Electricity and Phoenix Gas working in collaboration with Whispertech UK. A comparative performance analysis between the ?-CHP unit and a condensing gas boiler revealed that the ?-CHP unit resulted in an annual cost saving of 180 with an incremental simple payback period of 13.8years when compared to a condensing gas boiler. Electricity imported from the grid decreased by 20.8% while CO2 emissions decreased by 16.1%. The ?-CHP unit used 2889kWh of gas more than the condensing gas boiler.

G. Conroy; A. Duffy; L.M. Ayompe

2014-01-01T23:59:59.000Z

443

Development of technology in the production of fertilizers in ammoniation-granulation plants. Progress report No. 12, September 1980. Final report  

SciTech Connect

Work conducted to demonstrate procedures and equipment to conserve about 83% of fuel oil used for drying and generating steam in the ammoniation-granulation plants is reported. The general mechanism of granulation is examined. Conventional ammoniation-granulation plants are described and the new pipe-cross reactor system is described and schematics of their design are presented. Results of some demonstration tests reveal that an average of 785,000 Btu's per ton of production is eliminated with the installation of the TVA pipe-cross reactor process. It also reduces atmospheric emissions. Data on investment cost and payback period of the installation of a pipe-cross reactor in an existing TVA granulation fertilizer plant are presented.

Not Available

1980-09-01T23:59:59.000Z

444

Thermal and economical analysis of a central solar heating system with underground seasonal storage in Turkey  

Science Journals Connector (OSTI)

Thermal performance and economic feasibility of two types of central solar heating system with seasonal storage under four climatically different Turkey locations are investigated. The effects of storage volume and collector area on the thermal performance and cost are studied for three load sizes. The simulation model of the system consisting of flat plate solar collectors, a heat pump, under ground storage tank and heating load based on a finite element analysis and finite element code ANSYS is chosen as a convenient tool. In this study, the lowest solar fraction value for Trabzon (41N) and the highest solar fraction value for Adana (37N) are obtained. Based on the economic analysis, the payback period of system is found to be about 2535 years for Turkey.

A. Ucar; M. Inalli

2005-01-01T23:59:59.000Z

445

Sustainability in India through wind: a case study of Muppandal Wind Farm in India  

Science Journals Connector (OSTI)

Sustainable development is closely associated with energy availability. It requires a continuous and efficient energy supply. Therefore renewable energy sources such as wind energy are vital for the Indian economy not only from supply side considerations but also for their environmental and social benefits. The current paper undertakes an empirical study of investments made at the Muppandal Wind Farm using different project evaluation methods. The results of the economic and financial analysis show that windmills having rated power more than 500 kW are economically viable and financially profitable after the year 1999. Considering improved technology, volatility of energy markets and the difficulty of huge investments, it is advisable to select windmills with the shortest payback period and to install higher rated power windmills at the Muppandal Wind Farm. The study concludes without government incentives and subsidies it would be very difficult for many firms at this location to break even.

Vinodh K. Natarajan; Jebagnanam Cyril Kanmony

2014-01-01T23:59:59.000Z

446

Analysis of a solar assisted heat pump system for indoor swimming pool water and space heating  

Science Journals Connector (OSTI)

Solar energy application is a good alternative to replace primary energy source especially for large-scale installations. Heat pumps are also effective means to reduce primary energy consumption. This paper describes a case study with a new design of solar assisted heat pump (SAHP) for indoor swimming pool space- and water-heating purposes. The system design procedure was first presented. The entire system was then modeled via the TRNSYS simulation environment and the energy performance was evaluated based on the winter time operation schedule. Economic analysis with a range of collector areas was also performed. The simulation results show that the overall system COP can reach 4.5, and the fractional factor of energy saving is 79% as compared to the conventional energy system. The economical payback period is less than 5years.

T.T. Chow; Y. Bai; K.F. Fong; Z. Lin

2012-01-01T23:59:59.000Z

447

Solarnorth '81 by Tymura Solardesigns: diverse residential, commercial and industrial projects at and above the 48th parallel in Ontario, Canada  

SciTech Connect

Solar Energy Heating Applications are On the Rise in and above the Northwestern City of Thunder Bay, on the northern shore of Lake Superior. Unique in their diversifications, the architectural commissions range from pure passive residential design thru hybrid systems; residential Greenhouse-Solarium active swimming pool and commercial hotel pool to inexpensive hybrid system for Canada's First Commercial Solar Lumber Drying Kiln; as well as combined earth sheltered with solar system design for a dormitory complex and shopping center. By May 1981, 7 buildings designed by Tymura Solardesigns in the Thunder Bay area will have been subjected to the Extreme Canadian climate (10,500/sup 0/F degree days, yearly temperature maximums from -41/sup 0/F to 90/sup 0/F, and solar fractions vary from 50% to 75%, with economic payback periods ranging between 7 and 10 years.

Tymura, E.J.

1981-01-01T23:59:59.000Z

448

Energy and materials flows in the iron and steel industry  

SciTech Connect

Past energy-consumption trends and future energy-conservation opportunities are investigated for the nation's iron and steel industry. It is estimated that, in 1980, the industry directly consumed approximately 2.46 x 10/sup 15/ Btu of energy (roughly 3% of total US energy consumption) to produce 111 million tons of raw steel and to ship 84 million tons of steel products. Direct plus indirect consumption is estimated to be about 3.1 x 10/sup 15/ Btu. Of the set of conservation technologies identified, most are judged to be ready for commercialization if and when the industry's capital formation and profitability problems are solved and the gradual predicted increase in energy prices reduces the payback periods to acceptable levels.

Sparrow, F.T.

1983-06-01T23:59:59.000Z

449

Largest Producer of Steel Products in the United States Achieves Significant Energy Savings at its Minntac Plant  

Energy.gov (U.S. Department of Energy (DOE))

This case study looks at the results of a DOE energy assessment at U.S. Steels Minntac plant in Mt. Iron, Minnesota, to analyze the efficiency of the plants process heating systems and determine energy savings opportunities. The assessment confirmed the energy savings from recently installed burners and determined the potential savings from retrofitting the kilns in the plant's other process lines with such burner systems. The new burners are yielding annual cost and energy savings of $760,000 and 95,000 MMBtu respectively. Additionally, the plant saves $30,000 in annual maintenance labor costs. With project costs of approximately $1.2 million, the plant achieved a simple payback of 1.5 years.

450

An improved absorption generator for solar-thermal powered heat pumps. Part 2: Energy and economics  

SciTech Connect

Solar heated absorption chiller installations have been very expensive for their rating. To enhance collector thermal efficiency the liquid flowing within the collectors must be kept as cool as possible. However, there is also a need to operate the absorption reported earlier. The compromise usually results in poor collector efficiency as well as a relatively poor specific chiller effect. The proposed vortex generator permits a heat pump to operate efficiently with relatively low temperature solar heated fluid (70--80 C). As a result, the collectors are cooler and more efficient. As noted in Part 1, the specific heat pumping capacity is about 27% greater than conventional systems operating at the same reduced generator temperatures. Therefore, a smaller, less expensive chiller is required. The reduced investment in solar arrays and absorption chillers is estimated along with a range of paybacks.

Fineblum, S. [Megadyne Inc., Rochester, NY (United States)

1997-12-31T23:59:59.000Z

451

Case Study of Two MBCx Projects: Using M&V to Track Energy Performance  

E-Print Network (OSTI)

operation Re-establish supply air temperature set point reset control in AHU1 Other measures Approximately 483,000 kWh (10%), 2.7M lbs/yr steam (51%) #0;? Estimated using DOE 2 analysis Cost reduction $84,000 (14%), Payback 0.7 years 13 Soda Hall... 006 3/ 24/ 2 006 3/ 26/ 2 00 6 3/ 28/ 2 00 6 3/ 3 0/ 2 006 Date kW h 0 10 20 30 40 50 60 70 80 De g F AHU 1 Daily kWh AHU 3 Daily kWh AHU 4 Daily kWh OAT Daily Average AHU 1 supply fan malf. begins here. Same date as economizer fix. 17 M...

Jump, D.

2007-01-01T23:59:59.000Z

452

Alternative Energy Saving Technology Analysis Report for Richland High School Renovation Project  

SciTech Connect

On July 8, 2004, L&S Engineering, Inc. submitted a technical assistance request to Pacific Northwest National Laboratory (PNNL) to help estimate the potential energy savings and cost effectiveness of the solar energy and daylighting design alternatives for Richland High School Renovation Project in Richland, WA. L&S Engineering expected PNNL to evaluate the potential energy savings and energy cost savings, the probable installation costs, incentives or grants to reduce the installed costs and simple payback for the following alternative measures: (1) Daylighting in New Gym; (2) Solar Photovoltaics; (3) Solar Domestic Hot Water Pre-Heat; and (4) Solar Outside Air Pre-Heat Following are the findings of the energy savings and cost-effectiveness analysis of above alternative energy saving technologies.

Liu, Bing

2004-08-09T23:59:59.000Z

453

Black Bear Prep plant replaces high-frequency screens with fine wire sieves  

SciTech Connect

At the Black Bear prep plant (near Wharncliffe, WV, USA) the clean coal from the spirals traditionally reported to high-frequency screens, which removed high-ash clay fines. Screens have inherent inefficiencies that allow clean coal to report to the screen underflow. The goal of this project was to capture the maximum amount of spiral clean coal while still removing the high-ash clay material found in the spiral product. The reduction of the circulating load and plant downtime for unscheduled maintenance were projected as additional benefits. After the plant upgrade, the maintenance related to the high frequency screens was eliminated and an additional 2.27 tons per hour (tph) of fine coal was recovered, which resulted in a payback period of less than one year. The article was adapted from a paper presented at Coal Prep 2007 in April 2007, Lexington, KY, USA. 1 ref., 1 fig., 1 tab.

Barbee, C.J.; Nottingham, J.

2007-12-15T23:59:59.000Z

454

Research Opportunities in Reliability of Photovoltaic Modules (Presentation)  

SciTech Connect

The motivation for an increased scope and a more proactive effort in reliability research of photovoltaic modules and systems includes reducing the levelized cost of energy and gaining better confidence in the energy and financial payback for photovoltaic systems. This increased reliability and confidence will lead to greater penetration of photovoltaics in the energy portfolio and greater employment in photovoltaics and related industries. Present research needs include the fundamental degradation mechanisms of polymers, connectors and other module components, mapping of failure mechanisms observed in the field to those in accelerated lifetime tests, determining the acceleration factors, and improving standards for modules such that tests can appropriately be assigned to evaluate their long term durability. Specific mechanisms discussed are corrosion in module components, metastability in thin-film active layers, delamination and loss of elastic properties in module polymeric materials, and inverter failure. Presently, there is hiring of reliability scientists and engineers at many levels of the value chain for photovoltaics.

Hacke, P.

2010-05-01T23:59:59.000Z

455

Energy savings and economics of advanced control strategies for packaged air conditioners with gas heat  

SciTech Connect

This paper presents an evaluation of the potential energy savings from adding advanced control to existing packaged air conditioners. Advanced control options include air-side economizer, multi-speed fan control, demand control ventilation and staged cooling. The energy and cost savings from the different control strategies individually and in combination are estimated using the EnergyPlus detailed energy simulation program for four building types, namely, a small office building, a stand-alone retail building, a strip mall building and a supermarket building. For each of the four building types, the simulation was run for 16 locations covering all 15 climate zones in the U.S. The maximum installed cost of a replacement controller that provides acceptable payback periods to owners is estimated.

Wang, Weimin; Katipamula, Srinivas; Huang, Yunzhi; Brambley, Michael R.

2013-10-01T23:59:59.000Z

456

Comparative analysis of net energy balance for satellite power systems (SPS) and other energy systems  

SciTech Connect

The net energy balance of seven electric energy systems is assessed: two coal-based, one nuclear, two terrestrial solar, and two solar power satellites, with principal emphasis on the latter two systems. Solar energy systems require much less operating energy per unit of electrical output. However, on the basis of the analysis used here, coal and nuclear systems are two to five times more efficient at extracting useful energy from the primary resource base than are the solar energy systems. The payback period for all systems is less than 1.5 years, except for the terrestrial photovoltaic (19.8 yr) and the solar power satellite system (6.4 yr), both of which rely on energy-intensive silicon cells.

Cirillo, R.R.; Cho, B.S.; Monarch, M.R.; Levine, E.P.

1980-04-01T23:59:59.000Z

457

Energy information systems (EIS): Technology costs, benefit, and best practice uses  

SciTech Connect

Energy information systems are the web-based software, data acquisition hardware, and communication systems used to store, analyze, and display building energy data. They often include analysis methods such as baselining, benchmarking, load profiling, and energy anomaly detection. This report documents a large-scale assessment of energy information system (EIS) uses, costs, and energy benefits, based on a series of focused case study investigations that are synthesized into generalizable findings. The overall objective is to provide organizational decision makers with the information they need to make informed choices as to whether or not to invest in an EIS--a promising technology that can enable up to 20 percent site energy savings, quick payback, and persistent low-energy performance when implemented as part of best-practice energy management programs.

Granderson, Jessica; Lin, Guanjing; Piette, Mary Ann

2013-11-26T23:59:59.000Z

458

Glasses for solar energy conversion systems  

Science Journals Connector (OSTI)

Solar technologies are projected to increase tremendously over the next 10 years. Glasses are playing an important role as transparent materials of photovoltaic (PV) cells and concentrating solar power (CSP) systems. Glasses are materials of short energy payback time and environmental compatibility suitable for sustainable energy concepts. The paper reviews recent solar applications. Surface structuring and coating of glasses are shown to improve energy efficiency for solar conversion systems substantially. Encapsulated glass-to-glass PV modules and solar photocatalytic glass surfaces are identified as elements of a green architecture combining renewable power generating and destruction of air pollutants of urban environments. Emerging solar technologies for power generation, including transparent PV modules, solar chimney and thermoelectric systems may become significant areas of future solar glass applications.

J. Deubener; G. Helsch; A. Moiseev; H. Bornhft

2009-01-01T23:59:59.000Z

459

Applications of power beaming from space-based nuclear power stations. [Laser beaming to airplanes; microwave beaming to ground  

SciTech Connect

Power beaming from space-based reactor systems is examined using an advanced compact, lightweight Rotating Bed Reactor (RBR). Closed Brayton power conversion efficiencies in the range of 30 to 40% can be achieved with turbines, with reactor exit temperatures on the order of 2000/sup 0/K and a liquid drop radiator to reject heat at temperatures of approx. 500/sup 0/K. Higher RBR coolant temperatures (up to approx. 3000/sup 0/K) are possible, but gains in power conversion efficiency are minimal, due to lower expander efficiency (e.g., a MHD generator). Two power beaming applications are examined - laser beaming to airplanes and microwave beaming to fixed ground receivers. Use of the RBR greatly reduces system weight and cost, as compared to solar power sources. Payback times are a few years at present prices for power and airplane fuel.

Powell, J.R.; Botts, T.E.; Hertzberg, A.

1981-01-01T23:59:59.000Z

460

Do elementary school children eat less in noisy cafeterias?  

Science Journals Connector (OSTI)

Twenty years ago the increased occupant productivity linked with high performance LEED green sustainable Passivhaus and day-lit buildings was generally backed by anecdote. A flurry of recent research however has consistently confirmed the once-anecdotal narrative: when buildings perform better workers do more students learn more and sales spike. After a substantial financial investment in a high performance building owners can expect meaningful energy savings with modest payback times but for buildings where occupant performance has a value both the construction costs and energy savings are a rounding error relative to occupant productivity benefits. Geothermal and passive thermal systems are explored as opportunities to align low-energy thermal systems to acoustics; passive ventilation and thermal mass are explored as low-energy thermal comfort strategies that challenge acoustic concerns. The authors recent research in daylighting thermal mass night insulation and the effects of cafeteria noise on the eating habits of elementary school children will be highlighted.

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

A Prototype Roof Deck Designed to Self-Regulate Deck Temperature and Reduce Heat Transfer  

SciTech Connect

A prototype roof and attic assembly exploits the use of radiation, convection and insulation controls to reduce its peak day heat transfer by almost 85 percent of the heat transfer crossing a conventional roof and attic assembly. The assembly exhibits attic air temperatures that do not exceed the maximum daily outdoor ambient temperature. The design includes a passive ventilation scheme that pulls air from the soffit and attic into an inclined air space above the roof deck. The design complies with fire protection codes because the air intake is internal and closed to the elements. Field data were benchmarked against an attic computer tool and simulations made for new and retrofit constructions in hot, moderate and cold climates to gauge the cost of energy savings and potential payback.

Miller, William A [ORNL] [ORNL

2011-01-01T23:59:59.000Z

462

SolOpt: A Novel Approach to Solar Rooftop Optimization  

SciTech Connect

Traditionally Photovoltaic Technology (PV) and Solar Hot Water Technology (SHW) have been designed with separate design tools, making it difficult to determine the appropriate mix of PV and SHW. A new tool developed at the National Renewable Energy Laboratory changes how the analysis is conducted through an integrated approach based on the life cycle cost effectiveness of each system. With 10 inputs someone with only basic knowledge of the building can simulate energy production from PV and SHW, and predict the optimal sizes of the systems. The user can select from four optimization criteria currently available: Greenhouse Gas Reduction, Net-Present Value, Renewable Energy Production, and Discounted Payback Period. SolOpt provides unique analysis capabilities that aren't currently available in any other software programs. Validation results with industry accepted tools for both SHW and PV are presented.

Lisell, L.; Metzger, I.; Dean, J.

2011-01-01T23:59:59.000Z

463

U.S. Department of Energy Office of Energy Efficiency and Renewable Energy NEPA categorical exclusion determination  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

WA-TRIBE-SQUAXIN ISLAND TRIBE WA-TRIBE-SQUAXIN ISLAND TRIBE Location: Tribe WA-TRIBE- SQUAXIN ISLAND TRIBE WA American Recovery and Reinvestment Act: Proposed Action or Project Description 1) The Squaxin Island Tribe will retain a technical consultant to work with the Planning and Community Development Department and key stakeholders to develop a Tribal-wide energy efficiency and climate change initiative that will complement other facility and environmental policies and 2) retain technical consulting services to develop strategies and conduct audits of the Tribal campus facilities, propose energy conservation measures, calculation of energy savings and paybacks, estimated construction or acquisition costs, and estimated operation and maintenance savings on an annual basis.

464

CenterPoint Energy - Commercial and Industrial Standard Offer Program |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CenterPoint Energy - Commercial and Industrial Standard Offer CenterPoint Energy - Commercial and Industrial Standard Offer Program CenterPoint Energy - Commercial and Industrial Standard Offer Program < Back Eligibility Commercial Industrial Institutional Local Government Nonprofit Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Other Heat Pumps Appliances & Electronics Commercial Lighting Lighting Manufacturing Home Weatherization Insulation Design & Remodeling Maximum Rebate Standard Offer: 20% of the annual incentive budget. Retro-Commissioning: up to $10,000 with matching customer contribution with simple payback in three years. Program Info State Texas Program Type Utility Rebate Program Rebate Amount Standard Offer Lighting (Fluorescent, HID, CFL): $120/kW; $0.04/kWh

465

Empire District Electric - Commercial and Industrial Energy Efficiency  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Empire District Electric - Commercial and Industrial Energy Empire District Electric - Commercial and Industrial Energy Efficiency Rebates Empire District Electric - Commercial and Industrial Energy Efficiency Rebates < Back Eligibility Commercial Industrial Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Other Appliances & Electronics Commercial Lighting Lighting Manufacturing Maximum Rebate 5,000; additional funds may be available for final 3 months of program year Program Info State Arkansas Program Type Utility Rebate Program Rebate Amount Custom: lesser of $.30 per kWh savings, 50% of incremental cost, or buydown to two year payback Fluorescent Lamps/Fixtures: $0.50 - $16 High Performance T8 Systems: $9 - $18 High-Bay Fluorescent Lamps/Ballasts: $40 - $125 CFL Fixtures: $8 - $25 Pendant/Wall Mount/Recessed Indirect Fixtures: $16 - $24

466

Meet Tony Simon, Another Industrial Assessment Center Student Success Story  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Meet Tony Simon, Another Industrial Assessment Center Student Meet Tony Simon, Another Industrial Assessment Center Student Success Story Meet Tony Simon, Another Industrial Assessment Center Student Success Story June 16, 2011 - 6:05pm Addthis Tony Simon Tony Simon Rob Penney Senior Energy Engineer, WSU Energy Program How does it work? Assessments are performed by one of 26 local teams of engineering faculty and students. Assessments include a site visit where students take engineering measurements as a basis for recommendations. The team performs a detailed analysis for specific recommendations with cost, performance and payback time estimates. Earlier this year, we told you about Matan Moram and Vitelio Silva, two alumni of their university's Industrial Assessment Centers (IAC), which are part of the Office of Energy Efficiency and Renewable Energy's

467

CX-002191: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2191: Categorical Exclusion Determination 2191: Categorical Exclusion Determination CX-002191: Categorical Exclusion Determination Squaxin Island Tribe Technical Consultant CX(s) Applied: A9, A11, B5.1 Date: 04/29/2010 Location(s): Squaxin Island, Washington Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant Program. 1) The Squaxin Island Tribe will retain a technical consultant to work with the Planning and Community Development Department and key stakeholders to develop a Tribal-wide energy efficiency and climate change initiative that will complement other facility and environmental policies and 2) retain technical consulting services to develop strategies and conduct audits of the Tribal campus facilities, propose energy conservation measures, calculation of energy savings and paybacks, estimated construction or

468

Building Energy Software Tools Directory: OnGrid Tool  

NLE Websites -- All DOE Office Websites (Extended Search)

OnGrid Tool OnGrid Tool The OnGrid Tool is an Excel-based application assisting in PV system sizing, pricing and quoting. It enables solar installers to gather a customer’s utility and site information quickly and efficiently. It calculates optimum system size, electricity bill savings, system incentives, and system net costs. It then calculates various economic benefit factors and produces a variety of proposals, quotes, and. The OnGrid Tool includes rates, incentives, and tax calculations, and estimates system performance, including all performance factors and shading data. Screen Shots Keywords solar, financial, payback, analysis, sales, tool, software, economics, proposal Validation/Testing The software is run through Microsoft Excel and results are available immediately. OnGrid uses the most credible sources for industry updates.

469

Industrial SPP Partner Teaming Profile Relight Depot Navistar International  

NLE Websites -- All DOE Office Websites (Extended Search)

SDI eBusiness, Inc. d/b/a RelightDepot Navistar International SDI eBusiness, Inc. d/b/a RelightDepot Navistar International 1341 SW 5 th Ave 6025 Urbana Street Boca Raton, FL 33432 Springfield, OH 45502 Business: Energy Efficient Lighting Business: Truck and Engine Manufacturer Ray De Varona James Spaulding, Strategic Sourcing Manager President Dan Benson, Facility Engineer Phone: 888-548-6387 Phone: 740-919-1934 Email: rdevarona@relightdepot.com Email: James.Spaulding@navistar.com Navistar International Lighting Retrofit Project Saves Over $1.1M/year With Instant Payback through First Energy Rebate Program Project Scope RelightDepot was contracted to retrofit all of the lighting at Navistar International's Springfield Assembly

470

CX-001065: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5: Categorical Exclusion Determination 5: Categorical Exclusion Determination CX-001065: Categorical Exclusion Determination Development of a Software Design Tool CX(s) Applied: A9 Date: 03/09/2010 Location(s): Hartford, Connecticut Office(s): Energy Efficiency and Renewable Energy, Golden Field Office The University of Hartford is proposing a project to "develop a stand-alone software tool for the design and economic analysis of hybrid geothermal heat pump systems for heating and cooling dominated buildings using solar collectors in both operating modes. An economic analysis module will be included in the software tool used on a methodology for direct capital cost comparisons and allow for simple payback and life-cycle cost analyses to be performed to aid design engineers in their decision-making process in

471

Retro-Commissioning Increases Data Center Efficiency at Low Cost  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Achieved at SRS Basic Retro-Cx: 1. Eliminated electric reheat. 2. Turned off humidification devices. 3. Tuned floor tile airflow. 4. Turned off three CRAC units. Total estimated savings ≅ 1,400,000 kWh/year Retro-Cx cost at SRS: Engineering consultant: preliminary, on-site, and follow-up work including data measurements and retrieval. SRS on-site facilities personnel and engineering support. Total estimated cost ≅ $25,000 Simple Payback at SRS: Estimated, at $0.045/kWh = 2.5 months. taken in the SRS program addressed retro-commissioning. Retro-Commissioning In general, retro-commissioning (Retro- Cx) is a systematic, documented process

472

 

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Investment-Grade Audit Kickoff Meeting Investment-Grade Audit Kickoff Meeting Sample Agenda Introductions/Roles Roles of each person in the project Objectives of meeting Setting the Stage Discussion by Agency/Site on their interests, goals, objectives and priorities Level of management support Discussion by ESCO of their interest in the project Expectations/Feedback on Initial Proposal Feedback on selection (what gov't liked about proposal; why selected) ESCO comments on selection Discussion on scope, buildings, areas and ECMs to be considered Building environmental/performance requirements Long-term plans at the site-additional capacity, utilization Demolition, new construction, studies, reports, information available Review of initial proposal ECM's Simple payback, contract term, total investment parameters

473

Department of Commerce - Honolulu, Hawaii | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Department of Commerce - Honolulu, Hawaii Department of Commerce - Honolulu, Hawaii Department of Commerce - Honolulu, Hawaii October 7, 2013 - 9:51am Addthis Photo of a Staff Residence at the Pacific Tsunami Warning Center in Hawaii The staff residences at the Pacific Tsunami Warning Center in Hawaii now have solar water heating systems funded by the Federal Energy Management Program (FEMP). The Center is part of the Department of Commerce's National Oceanic and Atmospheric Administration (DOC-NOAA). New solar water heating systems were installed on six staff residences. These systems were designed to meet at least 90% of the yearly demand for hot water. They save between $200 and $300 in energy costs each month, so the simple payback period for the project is only five years. The annual savings of approximately $3,600 will go toward the purchase of much needed

474

Frequently Asked Questions  

Energy.gov (U.S. Department of Energy (DOE))

This statement signals that DOE will no longer provide funding or hands-on resources to support NTER.

475

THE PERFORMANCE OF CRYPTOGRAPHIC ALGORITHMS IN THE AGE OF PARALLEL COMPUTING  

E-Print Network (OSTI)

a much longer time to hack the cipher text. This project makes it possible for several internet users

Painter, Kevin

476

Car Parking Permit Eligibility 1. Eligible Groups  

E-Print Network (OSTI)

the Site Security Staff on arrival and allow parking in loading areas when longer than one hour is required

Martin, Ralph R.

477

The Study of Climate on Alien Worlds  

E-Print Network (OSTI)

Characterizing atmospheres beyond the Solar System is an endeavor no longer confined to the realm of science fiction.

Heng, Kevin

2012-01-01T23:59:59.000Z

478

Intrusion Tolerance 18 PublishedbytheieeeComPutersoCiety1540-7993/08/$25.002008ieeeieeeseCurity&PrivaCy  

E-Print Network (OSTI)

- structures such as power, water, gas, oil, and trans- portation. Therefore, the threat is no longer against

Neves, Nuno

479

Process Control Security 44 PublishedbytheieeeComPutersoCiety1540-7993/08/$25.002008ieeeieeeseCurity&PrivaCy  

E-Print Network (OSTI)

- structures such as power, water, gas, oil, and trans- portation. Therefore, the threat is no longer against

Correia, Miguel

480

Ghosts of El Salvador  

E-Print Network (OSTI)

poisoning the fish, along with their domestic animalsand they were no longer allowed to grow their own food

Kerr, Dara

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "longer breakeven payback" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Independent Scientific Review Panel for the Northwest Power & Conservation Council  

E-Print Network (OSTI)

that have the potential to solve or provide longer-term treatment of the phosphorous eutrophication problem

482

Fracture Characterization in Enhanced Geothermal Systems by Wellbore and Reservoir Analysis  

Energy.gov (U.S. Department of Energy (DOE))

Project Summary. To study the transport and recovery of injected SiO2 nanoparticles through a longer flow path.

484

Modeling & Simulation - AFLEET  

NLE Websites -- All DOE Office Websites (Extended Search)

AFLEET Estimates Petroleum Use, GHG Emissions, Air Pollutant Emissions and Cost of Vehicle Ownership Calculator examines the environmental and economic costs and benefits of alternative fuel and advanced vehicles How do you quantify the effects of using alternative fuel and other advanced vehicles? To answer such questions, Argonne National Laboratory recently created the Alternative Fuel Life-Cycle Environmental and Economic Transportation (AFLEET) Tool for the U.S. Department of Energy's (DOE's) Clean Cities program to help Clean Cities stakeholders estimate petroleum use, greenhouse gas (GHG) emissions, air pollutant emissions and cost of ownership of light-duty and heavy-duty vehicles using simple spreadsheet inputs. The AFLEET Tool provides three calculation methods depending on the user's goals. The first option is the Simple Payback Calculator, which examines acquisition and annual operating costs to calculate a simple payback for purchasing a new alternative fuel vehicle as compared to its conventional counterpart, as well as average annual petroleum use, greenhouse gas (GHG) and air pollutant emissions. The second option is the Total Cost of Ownership Calculator, which evaluates the net present value of operating and fixed costs over the years of planned ownership of a new vehicle, as well as lifetime petroleum use, GHGs and air pollutant emissions. Finally, the Fleet Energy and Emissions Footprint Calculator estimates the annual petroleum use, GHGs and air pollutant emissions of existing and new vehicles, taking into consideration that older vehicles typically have higher air pollutant emission rates than newer ones. AFLEET Tool requires Microsoft Excel to run and may be downloaded free of charge at http://greet.es.anl.gov/afleet_tool.

485

EXERGY ANALYSIS AND ENTROPY GENERATION MINIMIZATION OF THERMOELECTRIC WASTE HEAT RECOVERY FOR ELECTRONICS  

E-Print Network (OSTI)

Energy recovery from waste heat is attracting more and more attention. All electronic systems consume electricity but only a fraction of it is used for information processing and for human interfaces, such as displays. Lots of energy is dissipated as heat. There are some discussions on waste heat recovery from the electronic systems such as laptop computers. However the efficiency of energy conversion for such utilization is not very attractive due to the maximum allowable temperature of the heat source devices. This leads to very low limits of Carnot efficiency. In contrast to thermodynamic heat engines, Brayton cycle, free piston Stirling engines, etc., authors previously reported that thermoelectric (TE) can be a cost-effective device if the TE and the heat sink are co-optimized, and if some parasitic effects could be reduced. Since the heat already exists and it is free, the additional cost and energy payback time are the key measures to evaluate the value of the energy recovery system. In this report, we will start with the optimum model of the TE power generation system. Then, theoretical maximum output, cost impact and energy payback are evaluated in the examples of electronics system. Entropy Generation Minimization (EGM) is a method already familiar in thermal management of electronics. The optimum thermoelectric waste heat recovery design is compared with the EGM approach. Exergy analysis evaluates the useful energy flow in the optimum TE system. This comprehensive analysis is used to predict the potential future impact of the TE material development, as the dimensionless figure-ofmerit (ZT) is improved.

Kazuaki Yazawa; Ali Shakouri

486

Supplement to the ``determination analysis`` (ORNL-6847) and analysis of the NEMA efficiency standard for distribution transformers  

SciTech Connect

This report contains additional information for use by the US Department of Energy in making a determination on proposing energy conservation standards for distribution transformers as required by the Energy Policy Act of 1992. An earlier determination study by the Oak Ridge National Laboratory determined that cost-effective, technically feasible energy savings could be achieved by distribution transformer standards and that these savings are significant relative to other product conservation standards. This study was documented in a final report, ``Determination Analysis of Energy Conservation Standards for Distribution Transformers`` (ORNL-6847, July 1996). The energy conservation options analyzed in this study were estimated to save 5.2 to 13.7 quads from 2000--2030. The energy savings for the determination study cases have been revised downward for a number of reasons. The transformer market, both present and future, was overestimated in the previous study, particularly for dry-type transformers, which have the greatest energy-saving potential. Moreover, a revision downwards of the effective annual loads for utility owned transformers also results in lower energy savings. The present study assesses four of the five conservation cases from the earlier determination study as well as the National Electrical Manufacturers Association energy efficiency standard NEMA TP 1-1996 using the updated data and a more accurate disaggregated analysis model. According to these new estimates, the savings ranged from 2.5 to 10.7 quads of primary energy for the 30-year period 2004 to 2034. For the TP-1 case, data were available to calculate the payback period required to recover the extra cost from the value of the energy saved. The average payback period based on the average national cost of electricity is 2.76 years. 15 figs., 23 tabs.

Barnes, P.R.; Das, S.; McConnell, B.W.; Van Dyke, J.W.

1997-09-01T23:59:59.000Z

487

Net climatic impact of solid foam insulation produced with halocarbon and non-halocarbon blowing agents  

Science Journals Connector (OSTI)

The net climatic effect of increasing the amount of insulation in buildings through the use of halocarbon-blown foam insulation involves three factors: the greenhouse gas emissions associated with the energy used to make the insulation; the climatic impact of leakage of the halocarbon blowing agent from the insulation during its manufacture, use, and at the time of disposal; and the reduction in heating and/or cooling energy use and associated greenhouse gas emissions. Recent studies and assessments leave the impression that the use of halocarbon-blown foam insulation has a strong net positive impact on climate, with the reduction in heating-related emissions being 20100 times greater than the CO2-equivalent halocarbon emissions. This result applies only to the overall impact of rather modest levels of insulation applied to a pre-existing roof or wall with negligible thermal resistance. It is appropriate to consider the time required for heating-related emission savings to offset halocarbon and manufacturing emissions for the addition of successive increments of insulationthe marginal payback time. For typical blowing agent leakage rates and for insulation levels found in high-performance houses, marginal payback times can be in excess of 100 years using halocarbon blowing agents, but are only 1050 years using non-halocarbon blowing agents. With a fixed thickness of insulation, the difference in heating energy savings using insulation with different blowing agents is generally only a few per cent, in spite of differences in thermal conductivity of up to 66%. The net savings in CO2-equivalent emissions is larger using non-halocarbon blowing agents, with the relative benefit of using non-halocarbon blowing agents greater the greater the thermal resistance of the envelope element prior to adding foam insulation.

L.D. Danny Harvey

2007-01-01T23:59:59.000Z

488

Need for Systematic Retrofit Analysis in Multifamily Buildings  

SciTech Connect

Multifamily housing offers high potential for energy savings through retrofits. A comprehensive energy audit with systematic evaluation of alternative energy measures is one of the key steps to realizing the full energy savings potential. However, this potential often remains unrealized when the selection of measures is (1) based on a one-size-fits-all approach originating from accustomed practices, (2) intended merely to meet code-compliance requirements, and/or (3) influenced by owner renter split incentive. In such cases, the benefits of comprehensive energy auditing are disregarded in view of the apparent difficulty in diagnosing multifamily buildings, evaluating alternative measures, and installing customized sets of measures. This paper highlights some of the barriers encountered in a multifamily housing retrofit project in Georgia and demonstrates the merits of systematic retrofit analysis by identifying opportunities for higher energy savings and improved comfort and indoor air quality that were missed in this project. The study uses a whole-building energy analysis conducted for a 10-unit, low-rise, multifamily building of a 110-unit apartment complex. The analysis projected a 24% energy savings from the measures installed in the building with a payback period of 10 years. Further analysis with a systematic evaluation of alternative measures showed that without compromising on the objectives of durability, livability, and appearance of the building, energy savings of up to 34% were achievable with a payback period of 7 years. The paper concludes by outlining recommendations that may benefit future retrofit projects by improving the audit process, streamlining tasks, and achieving higher energy savings.

Malhotra, Mini [ORNL; Im, Piljae [ORNL

2014-01-01T23:59:59.000Z

489

From TSD  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Illustrative Calculation of Economics for Heat Pump and "Grid-Enabled" Water Heaters Illustrative Calculation of Economics for Heat Pump and "Grid-Enabled" Water Heaters Cost (2008 $) HPWH (2.0 EF) $1,435 From TSD TSL 5 (.95 EF) $701 From TSD; added $50 for DR control Cost (2011 $) HPWH (2.0 EF) $1,498 Adjusted based on GDP deflator TSL 5 (.95 EF) $732 Annual payments HPWH $141 Loan at 3% real, 13 year term (based on product life from TSD) TSL 5 $69 Annual kWh HPWH 1404 From TSD TSL 5 2445 Estimated kWh for large water htrs HPWH 2050 Added 46% per PTSD Figure 7.3.2 TSL 5 3570 Cost/kWh 0.1128 $ For 2015 from AEO 2013 Annual electricity cost HPWH 231 $ TSL 5 403 $ Total annual cost (loan+ electric) HPWH 372 $ TSL 5 471 $ Discount needed for breakeven If 100% of power is off-peak

490

On-Orbit Asset Management System, September 1995. Final report  

SciTech Connect

Declining budgets have prompted the need to decrease launch cost, increase satellite lifetime, and accomplish more with each satellite. This study evaluates an OOAMS system for its ability to lengthen lifetime of on-orbit assets, decrease the number of satellites required to perform a mission, increase responsiveness, and provide increased mission capability/tactical advantage. Lifetime analysis suggest that the larger satellite systems (NASA and military communication systems, surveillance satellites and earth observing satellites) would benefit most from a nuclear bimodal OOAMS. Evaluation of satellite constellations indicate that a modest reduction in the number of satellites could be realized using OOAMS if the thermal restart capability was at least ten. An OOAMS could improve the responsiveness (launching of new assets) using on-orbit reconstitution of assets. A top level utility assessment was done to address system cost issues relating to funding profiles, first unit cost, and break-even analysis. From mission capture and orbital lifetime criteria, the recommended minimum orbital altitude is 900 km. The on-orbit thermal restart capability should be increased from five to ten. Analysis of total impulse vs propellant consumed for selected missions suggests that total impulse be increased from 40 million to 48 million Newton-seconds.

NONE

1995-10-10T23:59:59.000Z

491

Case study evaluating the potential for small wind energy conversion systems (SWECS) as an integral part of the generating mix of a regional utility. Final report, ICFAR Project 05-3-7001-0  

SciTech Connect

Average annual measured wind speeds in Indiana extrapolated to 30m vary from approximately 4.5 to 6.5 m/s. Stronger winds are observed in the northern part of the state than in the southern, with the central region exhibiting intermediate values. The annual array capacity factors of the three selected wind turbines operating in an Indianapolis wind regime at height 30m varied from 0.243 for the machine with rated power density (P/sub rd/) 244 W/m/sup 2/ to 0.462 for the machine with P/sub rd/ = 93 W/m/sup 2/ - a difference in power output of nearly a factor of 2. These results strongly suggest that wind turbines with low rated power densities are best suited for Indiana's wind regimes. The economic analyses of WECS break-even costs show that, given the assumptions of the analysis, a wind turbine with P/sub rd/ = 244 W/m/sup 2/ would be economically competitive with conventional generating sources were the capital cost not to exceed about $750 per rated kW (1989 dollars). This figure for a machine with P/sub rd/ = 93 W/m/sup 2/ is nearly $2000/kW. Brought back to 1980 dollars by an inflation factor of (1.08)/sup 9/ = 2.00, these values reckon to $375/kW and $1000/kW, respectively.

Brown, M.L.

1980-09-01T23:59:59.000Z

492

Economic Analysis of Carbon Dioxide Sequestration in Powder River Basin Coal  

SciTech Connect

Unminable coalbeds are potentially large storage reservoirs for the sequestration of anthropogenic CO2 and offer the benefit of enhanced methane production, which can offset some of the costs associated with CO2 sequestration. The objective of this paper is to study the economic feasibility of CO2 sequestration in unminable coal seams in the Powder River Basin of Wyoming. Economic analyses of CO2 injection options are compared. Results show that injecting flue gas to recover methane from CBM fields is marginally economical; however, this method will not significantly contribute to the need to sequester large quantities of CO2. Separating CO2 from flue gas and injecting it into the unminable coal zones of the Powder River Basin seam is currently uneconomical, but can effectively sequester over 86,000 tons (78,200 tonne) of CO2 per acre while recovering methane to offset costs. The cost to separate CO2 from flue gas was identified as the major cost driver associated with CO2 sequestration in unminable coal seams. Improvements in separations technology alone are unlikely to drive costs low enough for CO2 sequestration in unminable coal seams in the Powder River Basin to become economically viable. Breakthroughs in separations technology could aid the economics, but in the Powder River Basin they cannot achieve the necessary cost reductions for breakeven economics without incentives.

Eric P. Robertson

2009-01-01T23:59:59.000Z

493

Wind-powered ammonia fuel production for remote islands: A case study  

Science Journals Connector (OSTI)

Abstract This work investigates the prospect of producing ammonia from a wind turbine in order to displace diesel fuel requirements on isolated islands. In the proposed system, wind power is used to produce carbon-free ammonia fuel directly from water and air using traditional air separation units, alkaline electrolyzers, mechanical vapor compression desalination and a HaberBosch synthesis loop. The ability to produce synthetic fuel on site is potentially valuable both because it mitigates fuel transportation costs and insulates islanders from oil price fluctuations. A general overview of the process and required components is given. The analytical model used to calculate the technical and economic performance is summarized. Monhegan Island in Maine is used as a case study for a wind-powered ammonia production facility to demonstrate the potential of ammonia fuel production. Actual wind data and electrical load data from Monhegan Island are incorporated to determine the expected ammonia production. The results are compared to the existing system in which all fuels and electricity are ultimately derived from petroleum-based fuel. Total lifetime system costs are calculated with the results normalized so that the wind-ammonia system can be directly compared to a conventional diesel-only system. A breakeven diesel price is calculated at which wind-powered ammonia production becomes competitive.

Eric Morgan; James Manwell; Jon McGowan

2014-01-01T23:59:59.000Z

494

Economics of a 75-MW(e) hot-dry-rock geothermal power station based upon the design of the Phase II reservoir at Fenton Hill  

SciTech Connect

Based upon EE-2 and EE-3 drilling costs and the proposed Fenton Hill Phase II reservoir conditions the break-even cost of producing electricity is 4.4 cents per kWh at the bus bar. This cost is based upon a 9-well, 12-reservoir hot dry rock (HDR) system producing 75 MW(e) for 10 yr with only 20% drawdown, and an assumed annual finance charge of 17%. Only one-third of the total, potentially available heat was utilized; potential reuse of wells as well as thermal stress cracking and augmentation of heat transfer was ignored. Nearly half the bus bar cost is due to drilling expenses, which prompted a review of past costs for wells GT-2, EE-1, EE-2, and EE-3. Based on comparable depth and completion times it is shown that significant cost improvements have been accomplished in the last seven years. Despite these improvements it was assumed for this study that no further advancements in drilling technology would occur, and that even in commercially mature HDR systems, drilling problems would continue nearly unabated.

Murphy, H.; Drake, R.; Tester, J.; Zyvoloski, G.

1982-02-01T23:59:59.000Z

495

Changuinola peat deposit of northwest Panama  

SciTech Connect

We studied the economics of generating electricity in a 30-MW power plant using peat as a fuel. We calculated the breakeven point; that is, the point at which the cost of producing electricity from a coal- or an oil-fueled facility was equal to the cost of producing electricity from a peat-fueled facility, both a fluidized-bed and a conventional suspension boiler and for wet-mined and milled peat production. In the base case, the price range for oil was assumed to be $0.09 to $0.108 per liter, and the price range for coal was assumed to be $35 to $42 per metric ton. Parametric studies were done varying the capacity factor, real cost of money, and the mining costs. The parametric studies indicate that a peat-fueled plant can remain competitive with an oil-fueled plant when each of the parameters, considered separately, have the following values: (1) capacity factor greater than 65%; (2) real cost of money less than 9%; and (3) actual peat mining cost, not exceeding the estimated cost by more than 25%. 9 refs., 15 figs., 8 tabs.

Thayer, G.R.; Williamson, K.D. Jr.; Ramirez, A.

1990-09-01T23:59:59.000Z

496

Business Evaluation of a Green Microalgae Botryococcus Braunii Oil Production System  

Science Journals Connector (OSTI)

Business feasibility of oil production using the green alga Botryococcus braunii has been studied for a conceptually designed, 19-hectare (ha) semi-open pond type oil producing plant. B. braunii is known to produce triterpenic hydrocarbons, such as C34H58, with high purity. The construction cost was estimated to be 200M (2.35M$) and the operation cost was 200M (2.35M$), or 10.5 M/ha year (=124,000$/ha year). The plant achieved a net energy gain in operation with an energy consumption ratio (ECR) of 2.80. Based on the total sales of the hydrocarbon oil produced and the operation cost balance considerations, the breakeven point oil price was 107 /L. By utilizing corporate financial analyses methods, the capital value of the oil producing company was estimated. The analysis methods described in the present study can also be applied to other oil production companies that use microalgae. We found that the initially invested capital increases approximately three times through successive business years when the oil price is 130 /L. In conclusion, several considerations introduced in the present study suggest that the algal oil production business will become strongly competitive in the fuel market by mid-twenty-first century.

Makoto Shiho; Masayuki Kawachi; Kazuhiko Horioka; Yosuke Nishita; Kazuhiko Ohashi; Kunimitsu Kaya; Makoto M. Watanabe

2012-01-01T23:59:59.000Z

497

Energy implications of glass-container recycling  

SciTech Connect

This report addresses the question of whether glass-container recycling actually saves energy. Glass-container production in 1991 was 10{sup 7} tons, with cullet making up about 30% of the input to manufacture. Two-thirds of the cullet is postconsumer waste; the remainder is in-house scrap (rejects). Most of the glass recycled is made into new containers. Total primary energy consumption includes direct process-energy use by the industry (adjusted to account for the efficiency of fuel production) plus fuel and raw-material transportation and production energies; the grand total for 1991 is estimated to be about 168 {times} 10{sup 12} Btu. The total primary energy use decreases as the percent of glass recycled rises, but the maximum energy saved is only about 13%. If distance to the landfill is kept fixed and that to the recovery facility multiplied by about eight, to 100 mi, a break-even point is reached, and recycling saves no energy. Previous work has shown that to save energy when using glass bottles, reuse is the clear choice. Recycling of glass does not save much energy or valuable raw material and does not reduce air or water pollution significantly. The most important impacts are the small reduction of waste sent to the landfill and increased production rates at glass plants.

Gaines, L.L.; Mintz, M.M. [Argonne National Lab., IL (United States)] [Argonne National Lab., IL (United States)

1994-03-01T23:59:59.000Z

498

Off-grid electrification with solar home systems: The experience of a fee-for-service concession in South Africa  

Science Journals Connector (OSTI)

In rural areas of developing countries, electrification projects with photovoltaic systems were conceived as pilot projects with the implementation of a limited number of systems. After considerable financial support from international donors, photovoltaic systems were often quickly abandoned few years after their installation. Using micro-credit institutions in the energy sector or implementing small utilities with a fee-for-service model is now considered as two desirable options to create a dynamic self-sustained market for solar home systems. South Africa launched in 1999 an ambitious off-grid solar electrification programme with fee-for-service concessions. Operating as small-scale utilities, fee-for-service concessions have facilitated the implementation on a large scale of solar home systems and solved the issue of high up-front cost and of long-term maintenance. This paper focuses on operational and design issues linked to the implementation of fee-for-service concessions. Even in a challenging institutional context, some South African operators seem almost able to reach their break-even point. The case of one concessionaire is detailed and serves as a basis for a discussion on the benefits and difficulties linked to the fee-for-service model and on the potential for replication.

Xavier Lemaire

2011-01-01T23:59:59.000Z

499

Airline network design and adjustment in response to fluctuation in jet fuel prices  

Science Journals Connector (OSTI)

Abstract This study develops a series of models to determine aircraft types and flight frequencies on individual routes, and evaluate the reliability of proposed network planning during fluctuations in jet fuel prices. The reliability of individual routes is evaluated as to whether revenues from flights with initially proposed flight frequencies and aircraft types can accommodate variations in jet fuel expenditures. We define reliability as the probability that the proposed flight frequencies will operate in at least a break-even condition under future fuel price fluctuations. A case study is provided using an international airline in Taiwan to evaluate its network reliability in response to jet fuel price fluctuations in 2008. The results indicate that not only do routes with low load factors show low reliability, but long distance routes with high load factors also show low reliability during periods with high fuel prices. The results of the study provide effective ways to enhance commercial airline network designs in response to the uncertainty of jet fuel prices.

Chaug-Ing Hsu; Wei-Yin Eie

2013-01-01T23:59:59.000Z

500

Tritium minority heating with mode conversion of fast waves  

SciTech Connect

A new ion-heating scenario in tokamak plasmas, based on cyclotron damping of ion Bernstein waves (IBWs) by tritium minority at the first ion cyclotron harmonic (i.e., omega=2OMEGA{sub cT}), is proposed. The IBWs are coupled by mode conversion of fast magnetosonic waves in a D-H(T) (tritium minority in hydrogen-deuterium) plasma. The mode conversion layer is located near the center of the plasma column as well as the resonant layer of the tritium minority. A possible scenario for the JET (Joint European Torus) tokamak [J. Wesson, JET Report No. 99, 1999], based on the present idea, has been analyzed by means of the numerical codes TORIC and SSFPQL (toroidal ion cyclotron and steady state Fokker-Planck quasilinear) [M. Brambilla, Nucl. Fusion 34, 1121 (1994); Plasma Phys. Controlled Fusion 41, 1 (1999)]. As a result, tritium ions are accelerated up to energies close to the peak value of the DT cross section and steady state breakeven condition (Qapprox =1.3) can be reached with 25% minority tritium concentration.

Castaldo, Carmine; Cardinali, Alessandro [Euratom ENEA Association, Via Enrico Fermi 45, CP65, 00044 Frascati (Rome) (Italy)

2010-07-15T23:59:59.000Z