Powered by Deep Web Technologies
Note: This page contains sample records for the topic "distributed generation represents" 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.


1

Distributed Generation  

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

Untapped Value of Backup Generation Untapped Value of Backup Generation While new guidelines and regulations such as IEEE (Institute of Electrical and Electronics Engineers) 1547 have come a long way in addressing interconnection standards for distributed generation, utilities have largely overlooked the untapped potential of these resources. Under certain conditions, these units (primarily backup generators) represent a significant source of power that can deliver utility services at lower costs than traditional centralized solutions. These backup generators exist today in large numbers and provide utilities with another option to reduce peak load, relieve transmission congestion, and improve power reliability. Backup generation is widely deployed across the United States. Carnegie Mellon's Electricity

2

Evaluation of Representative Smart Grid Investment Grant Project Technologies: Distributed Generation  

Science Conference Proceedings (OSTI)

This document is one of a series of reports estimating the benefits of deploying technologies similar to those implemented on the Smart Grid Investment Grant (SGIG) projects. Four technical reports cover the various types of technologies deployed in the SGIG projects, distribution automation, demand response, energy storage, and renewables integration. A fifth report in the series examines the benefits of deploying these technologies on a national level. This technical report examines the impacts of addition of renewable resources- solar and wind in the distribution system as deployed in the SGIG projects.

Singh, Ruchi; Vyakaranam, Bharat GNVSR

2012-02-14T23:59:59.000Z

3

Distributed Generation  

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

with another option to reduce peak load, relieve transmission congestion, and improve power reliability. Backup generation is widely deployed across the United States. Carnegie...

4

Distribution Screening for Distributed Generation  

Science Conference Proceedings (OSTI)

As the deployment of renewable distributed generation increases, the need for traditional energy providers to interact with these resources increases. Detailed modeling and simulation of the distribution and distributed resources is a critical element to better analyze, understand and predict these interactions. EPRI has developed a tool for such analysis called OpenDSS. In addition, as part of the renewable integration program an applet was created for screening distributed generation (DG). This report ...

2009-12-23T23:59:59.000Z

5

Financing Distributed Generation  

DOE Green Energy (OSTI)

This paper introduces the engineer who is undertaking distributed generation projects to a wide range of financing options. Distributed generation systems (such as internal combustion engines, small gas turbines, fuel cells and photovoltaics) all require an initial investment, which is recovered over time through revenues or savings. An understanding of the cost of capital and financing structures helps the engineer develop realistic expectations and not be offended by the common requirements of financing organizations. This paper discusses several mechanisms for financing distributed generation projects: appropriations; debt (commercial bank loan); mortgage; home equity loan; limited partnership; vendor financing; general obligation bond; revenue bond; lease; Energy Savings Performance Contract; utility programs; chauffage (end-use purchase); and grants. The paper also discusses financial strategies for businesses focusing on distributed generation: venture capital; informal investors (''business angels''); bank and debt financing; and the stock market.

Walker, A.

2001-06-29T23:59:59.000Z

6

Financing Distributed Generation  

SciTech Connect

This paper introduces the engineer who is undertaking distributed generation projects to a wide range of financing options. Distributed generation systems (such as internal combustion engines, small gas turbines, fuel cells and photovoltaics) all require an initial investment, which is recovered over time through revenues or savings. An understanding of the cost of capital and financing structures helps the engineer develop realistic expectations and not be offended by the common requirements of financing organizations. This paper discusses several mechanisms for financing distributed generation projects: appropriations; debt (commercial bank loan); mortgage; home equity loan; limited partnership; vendor financing; general obligation bond; revenue bond; lease; Energy Savings Performance Contract; utility programs; chauffage (end-use purchase); and grants. The paper also discusses financial strategies for businesses focusing on distributed generation: venture capital; informal investors (''business angels''); bank and debt financing; and the stock market.

Walker, A.

2001-06-29T23:59:59.000Z

7

GASIFICATION FOR DISTRIBUTED GENERATION  

DOE Green Energy (OSTI)

A recent emphasis in gasification technology development has been directed toward reduced-scale gasifier systems for distributed generation at remote sites. The domestic distributed power generation market over the next decade is expected to be 5-6 gigawatts per year. The global increase is expected at 20 gigawatts over the next decade. The economics of gasification for distributed power generation are significantly improved when fuel transport is minimized. Until recently, gasification technology has been synonymous with coal conversion. Presently, however, interest centers on providing clean-burning fuel to remote sites that are not necessarily near coal supplies but have sufficient alternative carbonaceous material to feed a small gasifier. Gasifiers up to 50 MW are of current interest, with emphasis on those of 5-MW generating capacity. Internal combustion engines offer a more robust system for utilizing the fuel gas, while fuel cells and microturbines offer higher electric conversion efficiencies. The initial focus of this multiyear effort was on internal combustion engines and microturbines as more realistic near-term options for distributed generation. In this project, we studied emerging gasification technologies that can provide gas from regionally available feedstock as fuel to power generators under 30 MW in a distributed generation setting. Larger-scale gasification, primarily coal-fed, has been used commercially for more than 50 years to produce clean synthesis gas for the refining, chemical, and power industries. Commercial-scale gasification activities are under way at 113 sites in 22 countries in North and South America, Europe, Asia, Africa, and Australia, according to the Gasification Technologies Council. Gasification studies were carried out on alfalfa, black liquor (a high-sodium waste from the pulp industry), cow manure, and willow on the laboratory scale and on alfalfa, black liquor, and willow on the bench scale. Initial parametric tests evaluated through reactivity and product composition were carried out on thermogravimetric analysis (TGA) equipment. These tests were evaluated and then followed by bench-scale studies at 1123 K using an integrated bench-scale fluidized-bed gasifier (IBG) which can be operated in the semicontinuous batch mode. Products from tests were solid (ash), liquid (tar), and gas. Tar was separated on an open chromatographic column. Analysis of the gas product was carried out using on-line Fourier transform infrared spectroscopy (FT-IR). For selected tests, gas was collected periodically and analyzed using a refinery gas analyzer GC (gas chromatograph). The solid product was not extensively analyzed. This report is a part of a search into emerging gasification technologies that can provide power under 30 MW in a distributed generation setting. Larger-scale gasification has been used commercially for more than 50 years to produce clean synthesis gas for the refining, chemical, and power industries, and it is probable that scaled-down applications for use in remote areas will become viable. The appendix to this report contains a list, description, and sources of currently available gasification technologies that could be or are being commercially applied for distributed generation. This list was gathered from current sources and provides information about the supplier, the relative size range, and the status of the technology.

Ronald C. Timpe; Michael D. Mann; Darren D. Schmidt

2000-05-01T23:59:59.000Z

8

Distributed Generation Heat Recovery  

Science Conference Proceedings (OSTI)

Economic and environmental drivers are promoting the adoption of combined heat and power (CHP) systems. Technology advances have produced new and improved distributed generation (DG) units that can be coupled with heat recovery hardware to create CHP systems. Performance characteristics vary considerably among DG options, and it is important to understand how these characteristics influence the selection of CHP systems that will meet both electric and thermal site loads.

2002-03-06T23:59:59.000Z

9

Distributed Generation Biofuel Testing  

Science Conference Proceedings (OSTI)

This Technical Update report documents testing performed to assess aspects of using biofuel as an energy source for distributed generation. Specifically, the tests involved running Caterpillar Power Module compression ignition engines on palm methyl ester (PME) biofuel and comparing the emissions to those of the same engines running on ultra-low-sulfur diesel fuel. Fuel consumption and energy efficiency were also assessed, and some relevant storage and handling properties of the PME were noted. The tests...

2011-12-06T23:59:59.000Z

10

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

L ABORATORY Distributed Generation with Heat Recovery andequal opportunity employer. Distributed Generation with Heatenergy resources (DER), distributed generation (DG), and

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

11

EIA - Distributed Generation in Buildings  

U.S. Energy Information Administration (EIA)

Modeling Distributed Generation in the Buildings Sectors . Supplement to the Annual Energy Outlook 2013 Release date: August 29, 2013

12

EIA - Distributed Generation in Buildings  

Gasoline and Diesel Fuel Update (EIA)

Previous reports Previous reports Distributed Generation in Buildings - AEO2005 Modeling Distributed Electricity Generation in the NEMS Buildings Models - July 2002 Modeling Distributed Generation in the Buildings Sectors Supplement to the Annual Energy Outlook 2013 - Release date: August 29, 2013 Distributed and dispersed generation technologies generate electricity near the particular load they are intended to serve, such as a residential home or commercial building. EIA defines distributed generation (DG) as being connected to the electrical grid and intended to directly offset retail sales, and dispersed generation as being off-grid and often used for remote applications where grid-connected electricity is cost-prohibitive. Dispersed generation in the buildings sector is not currently gathered by

13

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

Distributed Generation with Heat Recovery and Storage energy resources (DER), distributed generation (DG), andload of Figure 2. distributed generation of part or all of

Siddiqui, Afzal; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2005-01-01T23:59:59.000Z

14

Operation of Distributed Generation Under Stochastic Prices  

E-Print Network (OSTI)

Operation of Distributed Generation Under Stochastic PricesOPERATION OF DISTRIBUTED GENERATION UNDER STOCHASTIC PRICESwith either on-site distributed generation (DG) or purchases

Siddiqui, Afzal S.; Marnay, Chris

2005-01-01T23:59:59.000Z

15

CONSULTANT REPORT DISTRIBUTED GENERATION  

E-Print Network (OSTI)

, renewables, interconnection, integration, electricity, distribution, transmission, costs. Please use Coldwell Project Manager Ivin Rhyne Office Manager Electricity Analysis Office Sylvia Bender Deputy Director Electricity Supply Analysis Division Robert P. Oglesby Executive Director DISCLAIMER

16

DISTRIBUTED GENERATION AND COGENERATION POLICY  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION DISTRIBUTED GENERATION AND COGENERATION POLICY ROADMAP FOR CALIFORNIA;ABSTRACT This report defines a year 2020 policy vision for distributed generation and cogeneration and cogeneration. Additionally, this report describes long-term strategies, pathways, and milestones to take

17

Distributed Generation Status Update  

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

0 DOE Peer Review Presentation 0 DOE Peer Review Presentation © Chevron 2010 CERTS Microgrid Demonstration with Large scale Energy Storage & Renewable Generation November 5, 2010 Presented By: Craig Gee, Project Manager (for Mr. Eduardo Alegria - Principal Investigator) Energy Solutions November 2010 DOE Peer Review Presentation © Chevron 2010 Agenda * Introduction - Who we are * Project Team & Site * Project Purpose & Objectives * Project Impacts * System Elements * Project Status * Research Elements * Recent Developments in California * Questions & Comments November 2010 DOE Peer Review Presentation © Chevron 2010 Chevron Energy Solutions Designed & Implemented over 900 Projects in the U.S.  Chevron ES, a division of Chevron USA, Inc. is committed to delivering economically & environmentally advantageous green

18

Modeling distributed generation in the buildings sectors  

Gasoline and Diesel Fuel Update (EIA)

Modeling distributed generation Modeling distributed generation in the buildings sectors August 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Modeling distributed generation in the buildings sectors i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the Department of Energy or other Federal agencies. July 2013 U.S. Energy Information Administration | Modeling distributed generation in the buildings sectors 1

19

Smooth distributions are finitely generated  

E-Print Network (OSTI)

A subbundle of variable dimension inside the tangent bundle of a smooth manifold is called a smooth distribution if it is the pointwise span of a family of smooth vector fields. We prove that all such distributions are finitely generated, meaning that the family may be taken to be a finite collection. Further, we show that the space of smooth sections of such distributions need not be finitely generated as a module over the smooth functions. Our results are valid in greater generality, where the tangent bundle may be replaced by an arbitrary vector bundle.

Drager, Lance D; Park, Efton; Richardson, Ken

2010-01-01T23:59:59.000Z

20

Scalable methods for representing, characterizing, and generating large graphs.  

Science Conference Proceedings (OSTI)

Goal - design methods to characterize and identify a low dimensional representation of graphs. Impact - enabling predictive simulation; monitoring dynamics on graphs; and sampling and recovering network structure from limited observations. Areas to explore are: (1) Enabling technologies - develop novel algorithms and tailor existing ones for complex networks; (2) Modeling and generation - Identify the right parameters for graph representation and develop algorithms to compute these parameters and generate graphs from these parameters; and (3) Comparison - Given two graphs how do we tell they are similar? Some conclusions are: (1) A bad metric can make anything look good; (2) A metric that is based an edge-by edge prediction will suffer from the skewed distribution of present and absent edges; (3) The dominant signal is the sparsity, edges only add a noise on top of the signal, the real signal, structure of the graph is often lost behind the dominant signal; and (4) Proposed alternative: comparison based on carefully chosen set of features, it is more efficient, sensitive to selection of features, finding independent set of features is an important area, and keep an eye on us for some important results.

Grace, Matthew D.; Dunlavy, Daniel M. (Sandia National Laboratories, Albuquerque, NM); Ray, Jaideep; Pinar, Ali; Hendrickson, Bruce Alan (Sandia National Laboratories, Albuquerque, NM); Phillips, Cynthia Ann (Sandia National Laboratories, Albuquerque, NM); Kolda, Tamara Gibson

2010-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

Protection of distributed generation interfaced networks.  

E-Print Network (OSTI)

??With the rapid increase in electrical energy demand, power generation in the form of distributed generation is becoming more important. However, the connections of distributed (more)

Dewadasa, Jalthotage Manjula Dinesh

2010-01-01T23:59:59.000Z

22

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

Electricity generated by distributed energy resources (DER)Energy, Office of Distributed Energy of the US Department ofdefined names including distributed energy resources (DER),

Siddiqui, Afzal; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2005-01-01T23:59:59.000Z

23

Definition: Distributed generation | Open Energy Information  

Open Energy Info (EERE)

generation generation Jump to: navigation, search Dictionary.png Distributed generation A term used by the power industry to describe localized or on-site power generation[1] View on Wikipedia Wikipedia Definition Distributed generation, also called on-site generation, dispersed generation, embedded generation, decentralized generation, decentralized energy or distributed energy, generates electricity from many small energy sources. Most countries generate electricity in large centralized facilities, such as fossil fuel, nuclear, large solar power plants or hydropower plants. These plants have excellent economies of scale, but usually transmit electricity long distances and can negatively affect the environment. Distributed generation allows collection of energy from many

24

Distributed Generation Dispatch Optimization under Various Electricity Tariffs  

E-Print Network (OSTI)

LBNL-54447. Distributed Generation Dispatch Optimizationrelated work. Distributed Generation Dispatch Optimization3 2.2 Distributed Generation

Firestone, Ryan; Marnay, Chris

2007-01-01T23:59:59.000Z

25

Investment and Upgrade in Distributed Generation under Uncertainty  

E-Print Network (OSTI)

AS, Marnay, C. Distributed generation investment by aand Upgrade in Distributed Generation under Uncertaintyand Upgrade in Distributed Generation under Uncertainty ?

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

26

Air Quality Impact of Distributed Generation of Electricity  

E-Print Network (OSTI)

quality impact of distributed generation. California Energyquality impacts of distributed generation, Proceedings ofquality impacts of distributed generation, Proceedings of

Jing, Qiguo

2011-01-01T23:59:59.000Z

27

Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation  

E-Print Network (OSTI)

Benefits of Distributed Generation. Unpublished draftto Establish a Distributed Generation Certification Program.Order: Establish a Distributed Generation Certification

Heath, Garvin A.; Granvold, Patrick W.; Hoats, Abigail S.; Nazaroff, William W

2005-01-01T23:59:59.000Z

28

Representing Drag on Unresolved Terrain as a Distributed Momentum Sink  

Science Conference Proceedings (OSTI)

In numerical weather prediction models, drag on unresolved terrain is usually represented by augmenting the boundary drag on the model atmosphere, in terms of an effective surface roughness length. But as is shown here, if a terrain-following ...

John D. Wilson

2002-05-01T23:59:59.000Z

29

Power Quality Impacts of Distributed Generation  

Science Conference Proceedings (OSTI)

Distribution systems are designed for one-way power flow and can accommodate only a limited amount of distributed generation (DG) without alterations. This project focused on the economics associated with upgrading and designing distribution systems to support widespread integration of distributed resources, especially distributed generation. Costs were determined in the area of protection requirements and voltage regulation requirements, two of the main areas where changes are required to accommodate DG.

2005-03-22T23:59:59.000Z

30

Hybrid distributed generation for power distribution systems planning  

Science Conference Proceedings (OSTI)

This paper presents planning models for hybrid distributed generation systems, as well as the results corresponding to a distribution systems planning problem obtained using a new computational tool based on a Geographic Information System, GIS. This ... Keywords: distributed generation (DG), geographical information systems (GIS), hybrid power systems, optimal planning

I. J. Ramrez-Rosado; P. J. Zorzano-Santamara; L. A. Fernndez-Jimnez; E. Garca-Garrido; P. Lara-Santilln; E. Zorzano-Alba; M. Mendoza-Villena

2006-02-01T23:59:59.000Z

31

Microgrids: distributed on-site generation  

E-Print Network (OSTI)

Microgrids: distributed on-site generation Suleiman Abu-Sharkh, Rachel Li, Tom Markvart, Neil Ross for Climate Change Research Technical Report 22 #12;1 Microgrids: distributed on-site generation Tyndall production by small scale generators in close proximity to the energy users, integrated into microgrids

Watson, Andrew

32

Generating multivariate extreme value distributions  

E-Print Network (OSTI)

We define in a probabilistic way a parametric family of multivariate extreme value distributions. We derive its copula, which is a mixture of several complete dependent copulas and total independent copulas, and the bivariate tail dependence and extremal coefficients. Based on the obtained results for these coefficients, we propose a method to built multivariate extreme value distributions with prescribed tail/extremal coefficients. We illustrate the results with examples of simulation of these distributions.

Ferreira, Helena

2012-01-01T23:59:59.000Z

33

Islanded operation of a distribution feeder with distributed generation.  

E-Print Network (OSTI)

??A distribution system that is equipped with distributed generators, such as roof-mounted photovoltaic systems, can operate as a microgrid (i.e., separated from the grid) under (more)

Venu, Chandu

2009-01-01T23:59:59.000Z

34

Distributed Generation and Resilience in Power Grids  

E-Print Network (OSTI)

We study the effects of the allocation of distributed generation on the resilience of power grids. We find that an unconstrained allocation and growth of the distributed generation can drive a power grid beyond its design parameters. In order to overcome such a problem, we propose a topological algorithm derived from the field of Complex Networks to allocate distributed generation sources in an existing power grid.

Scala, Antonio; Chessa, Alessandro; Caldarelli, Guido; Damiano, Alfonso

2012-01-01T23:59:59.000Z

35

Strategic Intelligence Update: Energy Storage & Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Energy storage at megawatt-hour scales can be used to enable generators to better follow load and stabilize transmission voltage and frequency. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage e...

2009-08-07T23:59:59.000Z

36

Strategic Intelligence Update: Distributed Generation & Energy Storage  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Energy storage at megawatt-hour scales can be used to enable generators to better follow load and stabilize transmission voltage and frequency. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage e...

2009-12-17T23:59:59.000Z

37

Strategic Intelligence Update: Energy Storage & Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Energy storage at megawatt-hour scales can be used to enable generators to better follow load and stabilize transmission voltage and frequency. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage e...

2009-06-22T23:59:59.000Z

38

Strategic Intelligence Update: Distributed Generation & Energy Storage  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Energy storage at megawatt-hour scales can be used to enable generators to better follow load and stabilize transmission voltage and frequency. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage e...

2009-10-08T23:59:59.000Z

39

Biogas-fueled Distributed Generation  

Science Conference Proceedings (OSTI)

This report is a case study of the use of digester gas produced at two wastewater treatment plants in Omaha, NE to fuel electric power generators.

2005-09-29T23:59:59.000Z

40

Invariant generators for generalized distributions and applications  

E-Print Network (OSTI)

The existence of invariant generators for locally finitely generated distributions satisfying a mild compatibility condition with the symmetry algebra is proved. This is applied to regular standard Dirac reduction.

Jotz, Madeleine

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

Regulatory Considerations for Developing Distributed Generation...  

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

Generation Projects Webinar Regulatory Considerations for Developing Distributed Generation Projects Webinar May 23, 2012 11:30AM to 1:00PM MDT The purpose of this webinar...

42

Integration of Demand Side Management, Distributed Generation...  

Open Energy Info (EERE)

Page Edit with form History Facebook icon Twitter icon Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages:...

43

Distributed Wind Power Generation - National Renewable Energy ...  

Technology breakthrough in roof-top distributed wind power generation Multi-billion $ market opportunity in next 10 years recent venture capital investments

44

Other Distributed Generation Technologies | Open Energy Information  

Open Energy Info (EERE)

Technologies Jump to: navigation, search TODO: Add description List of Other Distributed Generation Technologies Incentives Retrieved from "http:en.openei.orgw...

45

A California Distributed Generation Primer: Interconnection and...  

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

California Distributed Generation Primer: Interconnection and Beyond Synopsis Speaker(s): Scott Tomashefsky Date: January 10, 2002 - 12:00pm Location: Bldg. 90 Seminar HostPoint...

46

Impacts of distributed generation on Smart Grid.  

E-Print Network (OSTI)

??With the concept of Smart Grid, there are high possibilities that the interconnection of distributed generation issues can be solved and minimised. This thesis discusses (more)

Hidayatullah, Nur Asyik

2011-01-01T23:59:59.000Z

47

Distributed Generation Investment by a Microgrid under Uncertainty  

E-Print Network (OSTI)

Dhaeseleer W. Distributed generation: definition, benefitsand their impact on distributed generation power projects,R, Zhou N. Distributed generation with heat recovery and

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

48

The Value of Distributed Generation under Different Tariff Structures  

E-Print Network (OSTI)

Tariff Structure on Distributed Generation Adoption in NewThe Value of Distributed Generation under Different TariffThe Value of Distributed Generation under Different Tariff

Firestone, Ryan; Magnus Maribu, Karl; Marnay, Chris

2006-01-01T23:59:59.000Z

49

Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings  

E-Print Network (OSTI)

Gas Abatement with Distributed Generation in CaliforniasGAS ABATEMENT WITH DISTRIBUTED GENERATION IN CALIFORNIASthe role of distributed generation (DG) in greenhouse gas

Stadler, Michael

2010-01-01T23:59:59.000Z

50

Distributed Generation Potential of the U.S. Commercial Sector  

E-Print Network (OSTI)

C. Marnay. 2003. Distributed Generation Capabilities of theImpact on the Deployment of Distributed Generation. PolicyIntegration of Distributed Generation and the Development of

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Gumerman, Etan; Marnay, Chris

2005-01-01T23:59:59.000Z

51

Distributed generation capabilities of the national energy modeling system  

E-Print Network (OSTI)

N ATIONAL L ABORATORY Distributed Generation Capabilities ofemployer. LBNL-52432 Distributed Generation Capabilities of1.1 Definition of Distributed Generation and Interpretation

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Marnay, Chris

2003-01-01T23:59:59.000Z

52

Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings  

E-Print Network (OSTI)

Gas Abatement with Distributed Generation in California'sGas Abatement with Distributed Generation in California scommercial buildings, distributed generation, microgrids

Marnay, Chris

2010-01-01T23:59:59.000Z

53

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

N ATIONAL L ABORATORY Distributed Generation Investment by aemployer. ORMMES06 Distributed Generation Investment by ato invest in a distributed generation (DG) unit that

Siddiqui, Afzal; Marnay, Chris

2006-01-01T23:59:59.000Z

54

Cogeneration and Distributed Generation1 This appendix describes cogeneration and distributed generating resources. Also provided is an  

E-Print Network (OSTI)

Cogeneration and Distributed Generation1 This appendix describes cogeneration and distributed of cogeneration and distributed generation in the Northwest. Cogeneration and distributed generation infrastructure requirements. In contrast, cogeneration and distributed generation are sited with respect to some

55

Ris Energy Report 4 Distributed generation 1 What is distributed generation?  

E-Print Network (OSTI)

Risø Energy Report 4 Distributed generation 1 5 What is distributed generation? Distributed as distributed energy resources (DERs). It appears that there is no consensus on precise defi- nitions of DG. Wind energy is presently the fastest growing and largest contributor to distributed genera- tion from

56

Distribution System Design for Strategic Use of Distributed Generation  

Science Conference Proceedings (OSTI)

This project was undertaken to identify distribution system design characteristics that limit widespread distributed generation (DG) penetration in utility distribution systems and to suggest new system design paths that increase strategic use of DG by distribution system operators. This work in 2005 was the first phase (requirements definition) of a multi-year project in the EPRI Advanced Distribution Automation (ADA) program plan. The multi-year project calls for design, implementation, and testing of ...

2005-12-19T23:59:59.000Z

57

Strategic Intelligence Update: Energy Storage & Distributed Generation  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2012-05-24T23:59:59.000Z

58

Strategic Intelligence Update: Energy Storage & Distributed Generation  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2012-03-20T23:59:59.000Z

59

Strategic Intelligence Update: Energy Storage & Distributed Generation  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2012-07-31T23:59:59.000Z

60

Report on Distributed Generation Penetration Study  

Science Conference Proceedings (OSTI)

This report documents part of a multiyear research program dedicated to the development of requirements to support the definition, design, and demonstration of a distributed generation-electric power system interconnection interface concept. The report focuses on the dynamic behavior of power systems when a significant portion of the total energy resource is distributed generation. It also focuses on the near-term reality that the majority of new DG relies on rotating synchronous generators for energy conversion.

Miller, N.; Ye, Z.

2003-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

Residential Power Systems for Distributed Generation Markets  

Science Conference Proceedings (OSTI)

This report is an update to "Technology Assessment of Residential Power Systems for Distributed Generation Markets" (EPRIsolutions report 1000772). That previous report dealt with fuel cells, stirling engine generators, and reciprocating engine generators; this current report focuses on polymer electrolyte membrane fuel cells (PEMFCs) and solid oxide fuel cell (SOFC) power systems fueled with natural gas or propane and sized for residential loads.

2002-03-29T23:59:59.000Z

62

Abatement of Air Pollution: Distributed Generators (Connecticut) |  

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

Distributed Generators (Connecticut) Distributed Generators (Connecticut) Abatement of Air Pollution: Distributed Generators (Connecticut) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Connecticut Program Type Environmental Regulations Provider Department of Energy and Environmental Protection

63

Distributed Generation Implementation Guidelines: Siting, Environmental Permitting, and Licensing  

Science Conference Proceedings (OSTI)

In 1997, EPRI conducted a study of how distributed generation (DG) was implemented at approximately 125 facilities in California and throughout the Midwest. The results of that study, as well as subsequent interviews with key facilities done the following year, enabled EPRI to present guidelines representative of a "best practices" approach to implementing and operating a DG facility based on the experience of others.

1998-12-16T23:59:59.000Z

64

Distributed Generation Implementation Guidelines: Operations, Maintenance and Training  

Science Conference Proceedings (OSTI)

In 1997, EPRI conducted a study of how distributed generation (DG) was implemented at approximately 125 facilities in California and throughout the Midwest. Results of that study, as well as subsequent interviews with key facilities done the following year, enabled EPRI to develop guidelines representative of a "best practices" approach to implementing and operating a DG facility based on the experience of others.

1998-12-16T23:59:59.000Z

65

The Binormal Distribution: A Distribution for Representing Asymmetrical but Normal-like Weather Elements  

Science Conference Proceedings (OSTI)

A new probability distribution, which has some of the advantages of the normal distribution but avoids the constraint of symmetry undesired in many applications, is presented. The distribution, called binormal, has three parameters, as the ...

Zoltan Toth; Tamas Szentimrey

1990-01-01T23:59:59.000Z

66

Regulatory Considerations for Developing Distributed Generation Projects  

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

Regulatory Considerations for Developing Distributed Generation Regulatory Considerations for Developing Distributed Generation Projects Webinar Regulatory Considerations for Developing Distributed Generation Projects Webinar May 23, 2012 11:30AM to 1:00PM MDT The purpose of this webinar is to educate NRECA and APPA members, Tribes, and federal energy managers about a few of the regulatory issues that should be considered in developing business plans for distributed generation projects. This webinar is sponsored by the DOE Office of Indian Energy Policy and Programs, DOE Energy Efficiency and Renewable Energy Tribal Energy Program, Western Area Power Administration, DOE Federal Energy Management Program, DOE Office of Electricity Delivery and Energy Reliability, National Rural Electric Cooperative Association, and the American Public Power

67

Distributed Generation Standard Contracts | Department of Energy  

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

Rhode Island enacted legislation (H.B. 6104) in June 2011 establishing a feed-in tariff for new distributed renewable energy generators up to three megawatts (MW) in...

68

Generation, distribution and utilization of electrical energy  

SciTech Connect

An up-to-date account of electric power generation and distribution (including coverage of the use of computers in various components of the power system). Describes conventional and unconventional methods of electricity generation and its economics, distribution methods, substation location, electric drives, high frequency power for induction and heating, illumination engineering, and electric traction. Each chapter contains illustrative worked problems, exercises (some with answers), and a bibliography.

Wadhwa, C.L.

1989-01-01T23:59:59.000Z

69

Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation  

E-Print Network (OSTI)

Existing distributed generation sources are more difficultfrom all electricity generation sources using a standarda co-located distributed generation source. It reads in text

Heath, Garvin A.; Granvold, Patrick W.; Hoats, Abigail S.; Nazaroff, William W

2005-01-01T23:59:59.000Z

70

Power Quality Impacts of Distributed Generation: Guidelines  

Science Conference Proceedings (OSTI)

With the advent of deregulation, distributed generation (DG) will play an increasing role in electric distribution systems. This report addresses the issue of integrating DG into the electric power system in a way that assures power quality in the grid and at end-use customer facilities.

2000-12-06T23:59:59.000Z

71

Distributed Generation Systems Inc | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Systems Inc Distributed Generation Systems Inc Name Distributed Generation Systems Inc Address 200 Union Blvd Place Lakewood, Colorado Zip 80228 Sector Wind energy Product Developer of electricity generation wind power facilities Website http://www.disgenonline.com/ Coordinates 39.718048°, -105.1324055° 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":39.718048,"lon":-105.1324055,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

72

Distributed Generation System Characteristics and Costs in the Buildings Sector  

Gasoline and Diesel Fuel Update (EIA)

Distributed Generation System Distributed Generation System Characteristics and Costs in the Buildings Sector August 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Distributed Generation System Characteristics and Costs in the Buildings Sector i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of approval by any other officer or employee of the United States Government. The views in this report therefore should not be construed as representing those of the U.S. Department of Energy or other Federal agencies.

73

FCT Technology Validation: Stationary/Distributed Generation Projects  

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

Stationary/Distributed Stationary/Distributed Generation Projects to someone by E-mail Share FCT Technology Validation: Stationary/Distributed Generation Projects on Facebook Tweet about FCT Technology Validation: Stationary/Distributed Generation Projects on Twitter Bookmark FCT Technology Validation: Stationary/Distributed Generation Projects on Google Bookmark FCT Technology Validation: Stationary/Distributed Generation Projects on Delicious Rank FCT Technology Validation: Stationary/Distributed Generation Projects on Digg Find More places to share FCT Technology Validation: Stationary/Distributed Generation Projects on AddThis.com... Home Transportation Projects Stationary/Distributed Generation Projects DOE Projects Non-DOE Projects Integrated Projects Quick Links Hydrogen Production

74

LO Generation and Distribution for 60GHz Phased Array Transceivers  

E-Print Network (OSTI)

LO Generation and Distribution for 60GHz Phased ArrayFall 2011 LO Generation and Distribution for 60GHz PhasedAbstract LO Generation and Distribution for 60GHz Phased

Marcu, Cristian

2011-01-01T23:59:59.000Z

75

Generating distributed entanglement from electron currents  

E-Print Network (OSTI)

Several recent experiments have demonstrated the viability of a passive device that can generate large spin-entangled currents in two separate leads. However, manipulation and measurement of flying qubits in a solid state system has never been achieved. In order to access such an entangled current resource, we therefore show how to use it to generate distributed, static entanglement. Our device is completely passive, and relies only on a weak interaction between static and flying spins. We show that the entanglement generated is robust to decoherence.

Ping, Yuting; Jefferson, John H; Lovett, Brendon W

2010-01-01T23:59:59.000Z

76

Power Quality Impacts of Distributed Generation: Survey of Distributed Generation Technologies  

Science Conference Proceedings (OSTI)

With the advent of deregulation, distributed generation (DG) will play an increasing role in electric distribution systems. Various new types of DG technologies, such as microturbines and fuel cells, now are being developed in addition to the more traditional solar and wind power. A common belief among developers is that DG will improve the local power quality. This potential for better quality is cited as one of the attributes that add value to the installation of distributed generators. In some cases, ...

2000-11-08T23:59:59.000Z

77

The Potential Benefits of Distributed Generation and the Rate...  

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

The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion The Potential Benefits of Distributed Generation and the Rate-Related...

78

Property:Distributed Generation Function | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Function Jump to: navigation, search Property Name Distributed Generation Function Property Type Page Description A description of the function(s) for which...

79

City of San Marcos - Distributed Generation Rebate Program (Texas...  

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

a Distributed Generation Rebate Program for the installation of grid-tied renewable energy systems. The Distributed Generation Rebate Program is offered on a first-come...

80

Avoiding Distribution System Upgrade Costs Using Distributed Generation  

Science Conference Proceedings (OSTI)

PNNL, in cooperation with three utilities, developed a database and methodology to analyze and characterize the avoided costs of Distributed Generation (DG) deployment as an alternative to traditional distribution system investment. After applying a number of screening criteria to the initial set of 307 cases, eighteen were selected for detailed analysis. Alternative DG investment scenarios were developed for these cases to permit capital, operation, maintenance, and fuel costs to be identified and incorporated into the analysis. The customer-owned backup power generator option was also investigated. The results of the analysis of the 18 cases show that none yielded cost savings under the alternative DG scenarios. However, the DG alternative systems were configured using very restrictive assumptions concerning reliability, peak rating, engine types and acceptable fuel. In particular it was assumed that the DG alternative in each case must meet the reliability required of conventional distribution systems (99.91% reliability). The analysis was further constrained by a requirement that each substation meet the demands placed upon it by a one in three weather occurrence. To determine if, by relaxing these requirements, the DG alternative might be more viable, one project was re-examined. The 99.91% reliability factor was still assumed for normal operating conditions but redundancy required to maintain reliability was relaxed for the relatively few hours every three years where extreme weather caused load to exceed present substation capacity. This resulted in the deferment of capital investment until later years and reduced the number of engines required for the project. The cost of both the conventional and DG alternative also dropped because the centralized power generation, variable O&M, and DG fuels costs were calculated based on present load requirements in combination with long-term forecasts of load growth, as opposed to load requirements plus a buffer based on predictions of extraordinary weather conditions. Application of the relaxed set of assumptions reduced the total cost of the DG alternative by roughly 57 percent from $7.0 million to $3.0 million. The reduction, however, did not change the overall result of the analysis, as the cost of the conventional distribution system upgrade alternative remained lower at $1.7 million. This paper also explores the feasibility of using a system of backup generators to defer investment in distribution system infrastructure. Rather than expanding substation capacity at substations experiencing slow load growth rates, PNNL considered a scenario where diesel generators were installed on location at customers participating in a program designed to offer additional power security and reliability to the customer and connection to the grid. The backup generators, in turn, could be used to meet peak demand for a limited number of hours each year, thus deferring distribution system investment. Data from an existing program at one of the three participating utilities was used to quantify the costs associated with the backup generator scenario. The results of the customer owned backup power generator analysis showed that in all cases the nominal cost of the DG scenario is more than the nominal cost of the base-case conventional distribution system upgrade scenario. However, in two of the cases the total present value costs of the alternative backup generator scenarios were between 15 and 22% less than those for the conventional scenarios. Overall, the results of the study offer considerable encouragement that the use of DG systems can defer conventional distribution system upgrades under the right conditions and when the DG configurations are intelligently designed. Using existing customer-owned DG to defer distribution system upgrades appears to be an immediate commercially-viable opportunity.

Schienbein, Lawrence A.; Balducci, Patrick J.; Nguyen, Tony B.; Brown, Daryl R.; DeSteese, John G.; Speer, Gregory A.

2004-01-20T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

A reliability assessment methodology for distribution systems with distributed generation  

E-Print Network (OSTI)

Reliability assessment is of primary importance in designing and planning distribution systems that operate in an economic manner with minimal interruption of customer loads. With the advances in renewable energy sources, Distributed Generation (DG), is forecasted to increase in distribution networks. The study of reliability evaluation of such networks is a relatively new area. This research presents a new methodology that can be used to analyze the reliability of such distribution systems and can be applied in preliminary planning studies for such systems. The method uses a sequential Monte Carlo simulation of the distribution system?s stochastic model to generate the operating behavior and combines that with a path augmenting Max flow algorithm to evaluate the load status for each state change of operation in the system. Overall system and load point reliability indices such as hourly loss of load, frequency of loss of load and expected energy unserved can be computed using this technique. On addition of DG in standby mode of operation at specific locations in the network, the reliability indices can be compared for different scenarios and strategies for placement of DG and their capacities can be determined using this methodology.

Duttagupta, Suchismita Sujaya

2003-05-01T23:59:59.000Z

82

NREL: Energy Analysis - Distributed Generation Energy Technology Operations  

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

Operations and Maintenance Costs Operations and Maintenance Costs Transparent Cost Database Button The following charts indicate recent operations and maintenance (O&M) cost estimates for distributed generation (DG) renewable energy technologies. The charts provide a compilation of available national-level cost data from a variety of sources. Costs in your specific location will vary. The red horizontal lines represent the first standard deviation of the mean. The U.S. Department of Energy (DOE) Federal Energy Management Program (FEMP) sponsored the distributed generation data used within these charts. If you are seeking utility-scale technology operations and maintenance estimates, please visit the Transparent Cost Database website for NREL's information regarding vehicles, biofuels, and electricity generation.

83

NREL: Energy Analysis - Distributed Generation Energy Technology Capital  

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

Capital Costs Capital Costs Transparent Cost Database Button The following charts indicate recent capital cost estimates for distributed generation (DG) renewable energy technologies. The estimates are shown in dollars per installed kilowatt of generating capacity or thermal energy capacity for thermal technologies. The charts provide a compilation of available national-level cost data from a variety of sources. Costs in your specific location will vary. The red horizontal lines represent the first standard deviation of the mean. The U.S. Department of Energy (DOE) Federal Energy Management Program (FEMP) sponsored the distributed generation data used within these charts. If you are seeking utility-scale technology capital cost estimates, please visit the Transparent Cost Database website for NREL's information

84

Integrated Distributed Generation and Energy Storage Concepts  

Science Conference Proceedings (OSTI)

Distributed generation (DG) can provide users with versatile and cost effective solutions for many of their energy requirements. However, as these devices have begun to proliferate, there have been a number of load and power system compatibility concerns that have been identified. To better understand and address DG product improvement opportunities, this report details the capabilities and limitations of existing DG applications from the perspective of critical load starting and power quality support. I...

2003-01-20T23:59:59.000Z

85

Property:Distributed Generation System Power Application | Open Energy  

Open Energy Info (EERE)

Application Application Jump to: navigation, search This is a property of type Page. Pages using the property "Distributed Generation System Power Application" Showing 21 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Based Load + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Based Load + Distributed Generation Study/Arrow Linen + Based Load + Distributed Generation Study/Dakota Station (Minnegasco) + Based Load +, Backup + Distributed Generation Study/Elgin Community College + Based Load +, Backup + Distributed Generation Study/Emerling Farm + Based Load + Distributed Generation Study/Floyd Bennett + Based Load + Distributed Generation Study/Harbec Plastics + Based Load + Distributed Generation Study/Hudson Valley Community College + Based Load +

86

Advanced Distributed Generation LLC | Open Energy Information  

Open Energy Info (EERE)

LLC LLC Jump to: navigation, search Name Advanced Distributed Generation LLC Address 200 West Scott Park Drive, MS # 410 Place Toledo, Ohio Zip 43607 Sector Solar Product Agriculture; Consulting; Installation; Maintenance and repair; Retail product sales and distribution Phone number 419-725-3401 Website http://www.advanced-dg.com Coordinates 41.6472294°, -83.5975882° 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":41.6472294,"lon":-83.5975882,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

87

Two-stage approach for the assessment of distributed generation capacity mixture in active distribution networks  

Science Conference Proceedings (OSTI)

Distribution networks are limited with spare capacities to integrate increased volumes of distributed generation (DG). Network constraints and congestion

D. Jayaweera; S. Islam; S. Neduvelil

2013-01-01T23:59:59.000Z

88

Atom-photon entanglement generation and distribution  

E-Print Network (OSTI)

We extend an earlier model by Law {\\it et al.} \\cite{law} for a cavity QED based single-photon-gun to atom-photon entanglement generation and distribution. We illuminate the importance of a small critical atom number on the fidelity of the proposed operation in the strong coupling limit. Our result points to a promisingly high purity and efficiency using currently available cavity QED parameters, and sheds new light on constructing quantum computing and communication devices with trapped atoms and high Q optical cavities.

B. Sun; M. S. Chapman; L. You

2003-08-31T23:59:59.000Z

89

Distributed Generation: Challenges and Opportunities, 7. edition  

Science Conference Proceedings (OSTI)

The report is a comprehensive study of the Distributed Generation (DG) industry. The report takes a wide-ranging look at the current and future state of DG and both individually and collectively addresses the technologies of Microturbines, Reciprocating Engines, Stirling Engines, Fuel Cells, Photovoltaics, Concentrating Solar, Wind, and Microgrids. Topics covered include: the key technologies being used or planned for DG; the uses of DG from utility, energy service provider, and customer viewpoints; the economics of DG; the benefits of DG from multiple perspectives; the barriers that exist to implementing DG; the government programs supporting the DG industry; and, an analysis of DG interconnection and net metering rules.

NONE

2007-10-15T23:59:59.000Z

90

Solid oxide fuel cell distributed power generation  

SciTech Connect

Fuel cells are electrochemical devices that oxidize fuel without combustion to convert directly the fuel`s chemical energy into electricity. The solid oxide fuel cell (SOFC) is distinguished from other fuel cell types by its all solid state structure and its high operating temperature (1,000 C). The Westinghouse tubular SOFC stack is process air cooled and has integrated thermally and hydraulically within its structure a natural gas reformer that requires no fuel combustion and no externally supplied water. In addition, since the SOFC stack delivers high temperature exhaust gas and can be operated at elevated pressure, it can supplant the combustor in a gas turbine generator set yielding a dry (no steam) combined cycle power system of unprecedented electrical generation efficiency (greater 70% ac/LHV). Most remarkably, analysis indicates that efficiencies of 60 percent can be achieved at power plant capacities as low as 250 kWe, and that the 70 percent efficiency level should be achievable at the two MW capacity level. This paper describes the individual SOFC, the stack, and the power generation system and its suitability for distributed generation.

Veyo, S.E.

1997-12-31T23:59:59.000Z

91

Property:Distributed Generation System Enclosure | Open Energy Information  

Open Energy Info (EERE)

System Enclosure System Enclosure Jump to: navigation, search This is a property of type String. The allowed values for this property are: Indoor Outdoor Dedicated Shelter Pages using the property "Distributed Generation System Enclosure" Showing 22 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Indoor + Distributed Generation Study/615 kW Waukesha Packaged System + Outdoor + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Outdoor + Distributed Generation Study/Arrow Linen + Outdoor + Distributed Generation Study/Dakota Station (Minnegasco) + Outdoor + Distributed Generation Study/Elgin Community College + Indoor + Distributed Generation Study/Emerling Farm + Dedicated Shelter + Distributed Generation Study/Floyd Bennett + Outdoor +

92

Distributed Generation with Heat Recovery and Storage  

DOE Green Energy (OSTI)

Electricity generated by distributed energy resources (DER) located close to end-use loads has the potential to meet consumer requirements more efficiently than the existing centralized grid. Installation of DER allows consumers to circumvent the costs associated with transmission congestion and other non-energy costs of electricity delivery and potentially to take advantage of market opportunities to purchase energy when attractive. On-site thermal power generation is typically less efficient than central station generation, but by avoiding non-fuel costs of grid power and utilizing combined heat and power (CHP) applications, i.e., recovering heat from small-scale on-site generation to displace fuel purchases, then DER can become attractive to a strictly cost-minimizing consumer. In previous efforts, the decisions facing typical commercial consumers have been addressed using a mixed-integer linear programme, the DER Customer Adoption Model(DER-CAM). Given the site s energy loads, utility tariff structure, and information (both technical and financial) on candidate DER technologies, DER-CAM minimizes the overall energy cost for a test year by selecting the units to install and determining their hourly operating schedules. In this paper, the capabilities of DER-CAM are enhanced by the inclusion of the option to store recovered low-grade heat. By being able to keep an inventory of heat for use in subsequent periods, sites are able to lower costs even further by reducing off-peak generation and relying on storage. This and other effects of storages are demonstrated by analysis of five typical commercial buildings in San Francisco, California, and an estimate of the cost per unit capacity of heat storage is calculated.

Siddiqui, Afzal; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2005-07-29T23:59:59.000Z

93

Protection system design for power distribution systems in the presence of distributed generation.  

E-Print Network (OSTI)

??The increasing presence of distributed generation and the steady modernization of power distribution system equipment have presented new opportunities in power distribution system studies. This (more)

Mao, Yiming

2005-01-01T23:59:59.000Z

94

Efficient hardware generation of random variates with arbitrary distributions  

E-Print Network (OSTI)

This paper presents a technique for efficiently generating random numbers from a given probability distribution. This is achieved by using a generic hardware architecture, which transforms uniform random numbers according to a distribution mapping stored in RAM, and a software approximation generator that creates distribution mappings for any given target distribution. This technique has many features not found in current non-uniform random number generators, such as the ability to adjust the target distribution while the generator is running, per-cycle switching between distributions, and the ability to generate distributions with discontinuities in the Probability Density Function. 1.

David B. Thomas; Wayne Luk

2006-01-01T23:59:59.000Z

95

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

of customer adoption of distributed energy resources, LBNLR. M. (2005). Distributed energy resources customer adoptionT. (2003). Gas-fired distributed energy resource technology

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

96

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

On-site thermal power generation is typically less efficienthighly centralised power generation and delivery systemProduction from US Power Generation Note this is only the

Siddiqui, Afzal; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2005-01-01T23:59:59.000Z

97

Distributed Generation with Heat Recovery and Storage  

E-Print Network (OSTI)

selection of on-site power generation with combined heat andsingle-cycle thermal power generation is typically lesshighly centralized power generation and delivery system

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2008-01-01T23:59:59.000Z

98

Property:Distributed Generation System Application | Open Energy  

Open Energy Info (EERE)

System Application System Application Jump to: navigation, search This is a property of type Page. Pages using the property "Distributed Generation System Application" Showing 22 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Combined Heat and Power + Distributed Generation Study/615 kW Waukesha Packaged System + Combined Heat and Power + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Combined Heat and Power + Distributed Generation Study/Arrow Linen + Combined Heat and Power + Distributed Generation Study/Dakota Station (Minnegasco) + Combined Heat and Power + Distributed Generation Study/Elgin Community College + Combined Heat and Power + Distributed Generation Study/Emerling Farm + Combined Heat and Power +

99

Property:Distributed Generation Prime Mover | Open Energy Information  

Open Energy Info (EERE)

Property Property Edit with form History Facebook icon Twitter icon » Property:Distributed Generation Prime Mover Jump to: navigation, search Property Name Distributed Generation Prime Mover Property Type Page Description Make and model of power sources. Pages using the property "Distributed Generation Prime Mover" Showing 22 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Ingersoll Rand I-R PowerWorks 70 + Distributed Generation Study/615 kW Waukesha Packaged System + Waukesha VGF 36GLD + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Aisin Seiki G60 + Distributed Generation Study/Arrow Linen + Coast Intelligen 150-IC with ECS + Distributed Generation Study/Dakota Station (Minnegasco) + Capstone C30 +

100

City of San Marcos- Distributed Generation Rebate Program (Texas)  

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

The City of San Marcos offers a Distributed Generation Rebate Program for the installation of grid-tied renewable energy systems. The Distributed Generation Rebate Program is offered on a first...

Note: This page contains sample records for the topic "distributed generation represents" 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

Distributed Generation Technologies DGT | Open Energy Information  

Open Energy Info (EERE)

DGT DGT Jump to: navigation, search Name Distributed Generation Technologies (DGT) Place Ithaca, New York Zip 14850 Product Commercializing a technology to convert organic waste into pure and compressed methane gas via anaerobic digestion. Coordinates 39.93746°, -84.553194° 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":39.93746,"lon":-84.553194,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

102

SOFC combined cycle systems for distributed generation  

SciTech Connect

The final phase of the tubular SOFC development program will focus on the development and demonstration of pressurized solid oxide fuel cell (PSOFC)/gas turbine (GT) combined cycle power systems for distributed power applications. The commercial PSOFC/GT product line will cover the power range 200 kWe to 50 MWe, and the electrical efficiency for these systems will range from 60 to 75% (net AC/LHV CH4), the highest of any known fossil fueled power generation technology. The first demonstration of a pressurized solid oxide fuel cell/gas turbine combined cycle will be a proof-of-concept 250 kWe PSOFC/MTG power system consisting of a single 200 kWe PSOFC module and a 50 kWe microturbine generator (MTG). The second demonstration of this combined cycle will be 1.3 MWe fully packaged, commercial prototype PSOFC/GT power system consisting of two 500 kWe PSOFC modules and a 300 kWe gas turbine.

Brown, R.A.

1997-05-01T23:59:59.000Z

103

Fuel cycle comparison of distributed power generation technologies.  

DOE Green Energy (OSTI)

The fuel-cycle energy use and greenhouse gas (GHG) emissions associated with the application of fuel cells to distributed power generation were evaluated and compared with the combustion technologies of microturbines and internal combustion engines, as well as the various technologies associated with grid-electricity generation in the United States and California. The results were primarily impacted by the net electrical efficiency of the power generation technologies and the type of employed fuels. The energy use and GHG emissions associated with the electric power generation represented the majority of the total energy use of the fuel cycle and emissions for all generation pathways. Fuel cell technologies exhibited lower GHG emissions than those associated with the U.S. grid electricity and other combustion technologies. The higher-efficiency fuel cells, such as the solid oxide fuel cell (SOFC) and molten carbonate fuel cell (MCFC), exhibited lower energy requirements than those for combustion generators. The dependence of all natural-gas-based technologies on petroleum oil was lower than that of internal combustion engines using petroleum fuels. Most fuel cell technologies approaching or exceeding the DOE target efficiency of 40% offered significant reduction in energy use and GHG emissions.

Elgowainy, A.; Wang, M. Q.; Energy Systems

2008-12-08T23:59:59.000Z

104

Distributed Generation with Heat Recovery and Storage  

SciTech Connect

Electricity produced by distributed energy resources (DER)located close to end-use loads has the potential to meet consumerrequirements more efficiently than the existing centralized grid.Installation of DER allows consumers to circumvent the costs associatedwith transmission congestion and other non-energy costs of electricitydelivery and potentially to take advantage of market opportunities topurchase energy when attractive. On-site, single-cycle thermal powergeneration is typically less efficient than central station generation,but by avoiding non-fuel costs of grid power and by utilizing combinedheat and power (CHP) applications, i.e., recovering heat from small-scaleon-site thermal generation to displace fuel purchases, DER can becomeattractive to a strictly cost-minimizing consumer. In previous efforts,the decisions facing typical commercial consumers have been addressedusing a mixed-integer linear program, the DER Customer Adoption Model(DER-CAM). Given the site s energy loads, utility tariff structure, andinformation (both technical and financial) on candidate DER technologies,DER-CAM minimizes the overall energy cost for a test year by selectingthe units to install and determining their hourly operating schedules. Inthis paper, the capabilities of DER-CAM are enhanced by the inclusion ofthe option to store recovered low-grade heat. By being able to keep aninventory of heat for use in subsequent periods, sites are able to lowercosts even further by reducing lucrative peak-shaving generation whilerelying on storage to meet heat loads. This and other effects of storageare demonstrated by analysis of five typical commercial buildings in SanFrancisco, California, USA, and an estimate of the cost per unit capacityof heat storage is calculated.

Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

2006-06-16T23:59:59.000Z

105

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

LBNL-60592 Distributed Generation Investment by a Microgrid Under Uncertainty Afzal Siddiqui'06 1 Distributed Generation Investment by a Microgrid Under Uncertainty Afzal Siddiqui University a California-based microgrid's decision to invest in a distributed generation (DG) unit that operates

106

An enhanced load transfer scheme for power distribution systems connected with distributed generation sources  

Science Conference Proceedings (OSTI)

This paper presents an enhanced load transfer scheme for power distribution systems connected with distributed generation sources. Load transfer is an important approach to improve the reliability of power distribution systems. The proposed load transfer ... Keywords: distributed generation source, distribution feeder, distribution system, interconnection, load transfer

Wen-Chih Yang; Wei-Tzer Huang

2011-04-01T23:59:59.000Z

107

Distribution System Planning with Distributed Generation: Optimal versus Heuristic Approach.  

E-Print Network (OSTI)

??Distribution system design and planning is facing a major change in paradigm because of deregulation of the power industry and with rapid penetration of distributed (more)

Bin Humayd, Abdullah

2011-01-01T23:59:59.000Z

108

Regulatory Considerations for Developing Distributed Generation...  

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

solution 2 What size generator? What fuel or energy source? Does it include storage? Who pays the up-front cost of the generator? Who owns the generator? Who...

109

Operation of Distributed Generation Under Stochastic Prices  

E-Print Network (OSTI)

Generation Under Stochastic Prices Afzal S. Siddiqui andGENERATION UNDER STOCHASTIC PRICES AFZAL SIDDIQUI AND CHRIStransactions at stochastic prices. A stochastic dynamic

Siddiqui, Afzal S.; Marnay, Chris

2005-01-01T23:59:59.000Z

110

Property:Distributed Generation System Heating-Cooling Application | Open  

Open Energy Info (EERE)

Heating-Cooling Application Heating-Cooling Application Jump to: navigation, search This is a property of type Page. Pages using the property "Distributed Generation System Heating-Cooling Application" Showing 21 pages using this property. D Distributed Generation Study/10 West 66th Street Corp + Domestic Hot Water +, Space Heat and/or Cooling + Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille + Domestic Hot Water + Distributed Generation Study/Arrow Linen + Domestic Hot Water + Distributed Generation Study/Dakota Station (Minnegasco) + Space Heat and/or Cooling +, Other + Distributed Generation Study/Elgin Community College + Space Heat and/or Cooling +, Domestic Hot Water + Distributed Generation Study/Emerling Farm + Domestic Hot Water +, Process Heat and/or Cooling +

111

Unbalanced Load Flow for Weakly Meshed Distribution Systems with Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed Generation (DG) can bring support to distribution system, meanwhile, it bring unbalancedness in power source, load and line. Traditional load flow algorithms are not applicable to the weakly meshed distribution system with DGs. First, this ... Keywords: weakly meshed distribution system, distributed generation, unbalanced load flow, sensitivity compensation

Shao-Qiang Hu; Sen-Mao Li

2010-06-01T23:59:59.000Z

112

Investigating the electric power distribution system (EPDS) bus voltage in the presence of distributed generation (DG)  

Science Conference Proceedings (OSTI)

This paper investigates the Electric Power Distribution System (EPDS) bus voltage in the presence of Distributed Generation (DG). Distribution Company's (Discos) planner endeavor to develop new planning strategies for their network in order to serve ... Keywords: PSCAD, distributed generation, electric power distribution system, islanding, power quality, voltage stability

Hasham Khan; Mohammad Ahmad Choudhry; Tahir Mahmood; Aamir Hanif

2006-04-01T23:59:59.000Z

113

Engineering Guide for Integration of Distributed Storage and Generation  

Science Conference Proceedings (OSTI)

This engineering guide for distributed storage and generation (DSG) is an update of a previous guide published by EPRI in 2004. It is intended for utility engineers facing integration of distributed generation and storage. The new guide considers higher penetration levels of DSG, particularly with the expansion of distribution connected photovoltaic power and the continued interest in distributed storage for grid support. Also, a distribution planning chapter for DSG has been added. Additional ...

2012-12-31T23:59:59.000Z

114

Slack bus modeling for distributed generation and its impacts on distribution system analysis, operation and planning.  

E-Print Network (OSTI)

??Distribution system operating environments are changing rapidly. Proper distributed generation placement and operating will bring benefits for supporting voltage, reducing system loss, enhancing system reliability, (more)

Tong, Shiqiong

2007-01-01T23:59:59.000Z

115

Enhancing reliability in passive anti-islanding protection schemes for distribution systems with distributed generation.  

E-Print Network (OSTI)

??This thesis introduces a new approach to enhance the reliability of conventional passive anti-islanding protection scheme in distribution systems embedding distributed generation. This approach uses (more)

Sheikholeslamzadeh, Mohsen

2012-01-01T23:59:59.000Z

116

Impact of Distributed Generation and Series Compensation on Distribution Network  

E-Print Network (OSTI)

are investigated. A doubly-fed induction generator (DFIG)-based DG unit and a series capacitor (SC) and a thyristor DFIG units. The converter of the DFIG is modeled as an unbalanced harmonic-generating source

Pota, Himanshu Roy

117

Strategic Intelligence Update: Distributed Generation & Energy Storage, 1st Newsletter  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Energy storage at megawatt-hour scales can be used to enable generators to better follow load and stabilize transmission voltage and frequency. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage e...

2008-06-11T23:59:59.000Z

118

Strategic Intelligence Update: Distributed Generation & Energy Storage, December 2008  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Energy storage at megawatt-hour scales can be used to enable generators to better follow load and stabilize transmission voltage and frequency. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage e...

2008-12-12T23:59:59.000Z

119

Advanced Voltage Control Strategies for High Penetration of Distributed Generation  

Science Conference Proceedings (OSTI)

This research addresses advanced voltage control strategies for inverter-connected distributed generation. The emphasis is on photovoltaic (PV) generation, and results also apply to distributed wind, fuel cells, micro-turbines, and battery systems that are connected to the grid through an inverter. In related work, the Electric Power Research Institute (EPRI) identified a set of high-priority functions for distributed generation. These included reactive power control such as intelligent and autonomous vo...

2010-12-31T23:59:59.000Z

120

A Radical Distributed Architecture for Local Energy Generation...  

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

A Radical Distributed Architecture for Local Energy Generation, Distribution, and Sharing Speaker(s): Randy Katz Date: April 25, 2008 - 12:00pm Location: 90-3122 Seminar HostPoint...

Note: This page contains sample records for the topic "distributed generation represents" 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

On Optimization of Reliability of Distributed Generation-Enhanced Feeders  

Science Conference Proceedings (OSTI)

Placement of protection devices in a conventionalfeeder (without distributed generation) is often performedso as to minimize traditional reliability indices (SAIDI,SAIFI, MAIFIe...), assuming the sole source(s) of energyat substation(s). Distributed ...

A. Pregelj; M. Begovic; A. Rohatgi; D. Novosel

2003-01-01T23:59:59.000Z

122

Optimal Reactive Power Planning of Radial Distribution Systems with Distributed Generation  

Science Conference Proceedings (OSTI)

The paper analyzes reactive power optimization problem in distribution system with wind power and PV generators. Reactive power optimization mathematical model including the active power loss, reactive power compensation capacity and static voltage margin ... Keywords: Distributed generation, Distributed Generation, Immune Algorithm, Cluster Evolutionary

Li Shengqi, Zeng Lilin, Li Yongan, He Zhengping

2013-01-01T23:59:59.000Z

123

Implementation of Distributed Key Generation Algorithms using Secure Sockets  

Science Conference Proceedings (OSTI)

Distributed Key Generation (DKG) protocols are indispensable in the design of any cryptosystem used in communication networks. DKG is needed to generate public/private keys for signatures or more generally for encrypting/decrypting messages. One such ...

A. T. Chronopoulos; F. Balbi; D. Veljkovic; N. Kolani

2004-08-01T23:59:59.000Z

124

Worst Case Scenario for Large Distribution Networks with Distributed Generation  

E-Print Network (OSTI)

and distribution networks, finally to the electric energy consumers. The life style of a nation is measured) in distri- bution network has significant effects on voltage profile for both customers and distribution of this formula is checked by comparing with the existing power systems simulation software. Using the voltage

Pota, Himanshu Roy

125

Next-Generation Distributed Power Management for Photovoltaic...  

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

Office EETD Safety Program Development Contact Us Department Contacts Media Contacts Next-Generation Distributed Power Management for Photovoltaic Systems Speaker(s): Jason Stauth...

126

Distributed Generation and Virtual Power Plants: Barriers and Solutions.  

E-Print Network (OSTI)

??The present technological and regulatory power system needs to adapt to the increase in the share of distributed generation. This research focuses on the applicability (more)

Olejniczak, T.

2011-01-01T23:59:59.000Z

127

Distributed Generation Study/Patterson Farms CHP System Using...  

Open Energy Info (EERE)

Farms CHP System Using Renewable Biogas < Distributed Generation Study Jump to: navigation, search Study Location Auburn, New York Site Description Agricultural Study Type Field...

128

Distributed Renewable Energy Generation and Landscape Architecture: A Critical Review.  

E-Print Network (OSTI)

??Governments and utility organizations around the world have mandated and provided incentives for new distributed renewable energy generation (DREG) capacity, and market projections indicate strong (more)

Beck, Osmer DeVon

2010-01-01T23:59:59.000Z

129

Voltage Stability Analysis with High Distributed Generation (DG) Penetration.  

E-Print Network (OSTI)

??Interest in Distributed Generation (DG) in power system networks has been growing rapidly. This increase can be explained by factors such as environmental concerns, the (more)

Al-Abri, Rashid

2012-01-01T23:59:59.000Z

130

Distributed Generation: Issues Concerning a Changing Power Grid Paradigm.  

E-Print Network (OSTI)

??Distributed generation is becoming increasingly prevalent on power grids around the world. Conventional designs and grid operations are not always sufficient for handling the implementation (more)

Therien, Scott G.M.

2010-01-01T23:59:59.000Z

131

ARPA-E Announces $30 Million for Distributed Generation Technologies...  

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

Reliable Electricity Based on ELectrochemical Systems (REBELS) program will develop fuel cell technology for distributed power generation to improve grid stability, increase...

132

Strategic Intelligence Update - Energy Storage & Distributed Generation: December 2010  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage especially has the ability to improve the value of intermittent renewable resources. Smaller-scale distributed energy storage, on the order of a ...

2010-12-14T23:59:59.000Z

133

Generating Multivariate Nonnormal Distribution Random Numbers Based on Copula Function  

E-Print Network (OSTI)

Abstract. Random numbers of multivariate nonnormal distribution are strongly requested by the area of theoretic research and application in practice. A new algorithm of generating multivariate nonnormal distribution random numbers is given based on the Copula function, and theoretic analysis suggests that the algorithm is suitable to be feasible. Furthermore, simulation shows that the empirical distribution which is formed by random numbers generating from the proposed algorithm can well approach the original distribution.

Xiaoping Hu; Jianmin He; Hongsheng Ly

2006-01-01T23:59:59.000Z

134

Strategic Intelligence Update: Energy Storage and Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage especially has the ability to improve the value of intermittent renewable resources. Smaller-scale distributed energy storage, on the order of a ...

2010-10-15T23:59:59.000Z

135

Strategic Intelligence Update: Energy Storage and Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage especially has the ability to improve the value of intermittent renewable resources. Smaller scale distributed energy storage, on the order of a ...

2010-04-01T23:59:59.000Z

136

Strategic Intelligence Update: Energy Storage and Distributed Generation  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage especially has the ability to improve the value of intermittent renewable resources. Smaller-scale distributed energy storage, on the order of a ...

2010-08-05T23:59:59.000Z

137

Operation of Distributed Generation Under Stochastic Prices  

E-Print Network (OSTI)

-site DG installed by a microgrid in the presence of stochastic electricity and fuel prices. We proceed (natural gas generating cost) exceeds the natural gas generating cost (electricity price) by a significant fraction of energy conversion from primary fuels to electricity takes place closer to loads, i

138

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

Tariff Structure on Distributed Generation Adoption in NewTariff Structure on Distributed Generation Adoption in NewTariff Structure on Distributed Generation Adoption in New

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

139

Generating Probability Distributions using Multivalued Stochastic Relay Circuits  

E-Print Network (OSTI)

The problem of random number generation dates back to von Neumann's work in 1951. Since then, many algorithms have been developed for generating unbiased bits from complex correlated sources as well as for generating arbitrary distributions from unbiased bits. An equally interesting, but less studied aspect is the structural component of random number generation as opposed to the algorithmic aspect. That is, given a network structure imposed by nature or physical devices, how can we build networks that generate arbitrary probability distributions in an optimal way? In this paper, we study the generation of arbitrary probability distributions in multivalued relay circuits, a generalization in which relays can take on any of N states and the logical 'and' and 'or' are replaced with 'min' and 'max' respectively. Previous work was done on two-state relays. We generalize these results, describing a duality property and networks that generate arbitrary rational probability distributions. We prove that these network...

Lee, David

2011-01-01T23:59:59.000Z

140

Steam Generator Management Program: Dynamic Analysis of a Steam Generator: Part 2 Stability Analysis of Representative Steam Gener ators  

Science Conference Proceedings (OSTI)

This report summarizes the results of a project that examined the effect of tube support plate blockage in recirculating steam generators on water level stability. This report builds upon Electric Power Research Institute (EPRI) report 1025134.BackgroundWater level oscillations in recirculating steam generators occur due to hydrodynamic instabilities in the natural circulation system. Utilities have reported water level oscillations in operating steam ...

2013-12-18T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

Application of Artificial Intelligence Technique in Distributed Generation System  

Science Conference Proceedings (OSTI)

This paper gives a brief description of current situation of distributed generation system, and points out that microgrid can run in two kinds of operation modes. The key problems which need to be cautiously considered exist in each operation mode are ... Keywords: Artificial intelligence, Artificial neural network, Distributed generation system, Fuzzy logic, Genetic algorithm, Multi-agent system

Guoqing Weng; Youbing Zhang; Yi Hu

2009-05-01T23:59:59.000Z

142

An integrated passive islanding detection method for distributed generators  

Science Conference Proceedings (OSTI)

This study proposes a new islanding detection method for use of grid-interconnected distributed generators (DG). The method is based on two indices: the rate of change of frequency (ROCOF) and the rate of change of voltage (ROCOV). When a DG is grid-interconnected, ... Keywords: distributed generator, islanding detection, rate of change of frequency, rate of change of voltage

Wen-Yeau Chang; Hong-Tzer Yang

2009-11-01T23:59:59.000Z

143

Operation of Distributed Generation Under Stochastic Prices  

Science Conference Proceedings (OSTI)

We model the operating decisions of a commercial enterprisethatneeds to satisfy its periodic electricity demand with either on-sitedistributed generation (DG) or purchases from the wholesale market. Whilethe former option involves electricity generation at relatively high andpossibly stochastic costs from a set of capacity-constrained DGtechnologies, the latter implies unlimited open-market transactions atstochastic prices. A stochastic dynamic programme (SDP) is used to solvethe resulting optimisation problem. By solving the SDP with and withoutthe availability of DG units, the implied option values of the DG unitsare obtained.

Siddiqui, Afzal S.; Marnay, Chris

2005-11-30T23:59:59.000Z

144

Matrix Element Distribution as a Signature of Entanglement Generation  

E-Print Network (OSTI)

We explore connections between an operator's matrix element distribution and its entanglement generation. Operators with matrix element distributions similar to those of random matrices generate states of high multi-partite entanglement. This occurs even when other statistical properties of the operators do not conincide with random matrices. Similarly, operators with some statistical properties of random matrices may not exhibit random matrix element distributions and will not produce states with high levels of multi-partite entanglement. Finally, we show that operators with similar matrix element distributions generate similar amounts of entanglement.

Yaakov S. Weinstein; C. Stephen Hellberg

2005-07-11T23:59:59.000Z

145

Distributed Generation in Buildings (released in AEO2005)  

Reports and Publications (EIA)

Currently, distributed generation provides a very small share of residential and commercial electricity requirements in the United States. The AEO2005 reference case projects a significant increase in electricity generation in the buildings sector, but distributed generation is expected to remain a small contributor to the sectors energy needs. Although the advent of higher energy prices or more rapid improvement in technology could increase the use of distributed generation relative to the reference case projection, the vast majority of electricity used in buildings is projected to continue to be purchased from the grid.

Information Center

2008-09-24T23:59:59.000Z

146

ARPA-E Announces $30 Million for Distributed Generation Technologies |  

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

30 Million for Distributed Generation 30 Million for Distributed Generation Technologies ARPA-E Announces $30 Million for Distributed Generation Technologies November 25, 2013 - 1:00pm Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - Today, the Department of Energy announced up to $30 million in Advanced Research Projects Agency - Energy (ARPA-E) funding for a new program focused on the development of transformational electrochemical technologies to enable low-cost distributed power generation. ARPA-E's Reliable Electricity Based on ELectrochemical Systems (REBELS) program will develop fuel cell technology for distributed power generation to improve grid stability, increase energy security, and balance intermittent renewable technologies while reducing CO2 emissions associated with current

147

The Value of Distributed Generation (DG) under Different Tariff Structures  

Open Energy Info (EERE)

The Value of Distributed Generation (DG) under Different Tariff Structures The Value of Distributed Generation (DG) under Different Tariff Structures Jump to: navigation, search Tool Summary LAUNCH TOOL Name: The Value of Distributed Generation (DG) under Different Tariff Structures Focus Area: Renewable Energy Topics: Socio-Economic Website: eetd.lbl.gov/ea/emp/reports/60589.pdf Equivalent URI: cleanenergysolutions.org/content/value-distributed-generation-dg-under Language: English Policies: "Regulations,Financial Incentives" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. Regulations: Utility/Electricity Service Costs This report examines the standby tariff structures recently implemented in New York as a result of utilities feelings toward distributed generation

148

Strategic Intelligence Update: Energy Storage & Distributed Generation, November 2012  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades.Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy ...

2012-11-28T23:59:59.000Z

149

Strategic Intelligence Update: Energy Storage and Distributed Generation, June 2013  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy ...

2013-06-28T23:59:59.000Z

150

Strategic Intelligence Update: Energy Storage and Distributed Generation  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2011-08-08T23:59:59.000Z

151

Strategic Intelligence Update: Energy Storage & Distributed Generation, December 2011  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2011-12-14T23:59:59.000Z

152

Strategic Intelligence Update: Energy Storage & Distributed Generation March 2011  

Science Conference Proceedings (OSTI)

Energy Storage and Distributed Generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2011-03-22T23:59:59.000Z

153

Strategic Intelligence Update: Energy Storage & Distributed Generation May 2011  

Science Conference Proceedings (OSTI)

Energy Storage and Distributed Generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2011-05-26T23:59:59.000Z

154

Strategic Intelligence Update: Energy Storage & Distributed Generation, September 2011  

Science Conference Proceedings (OSTI)

Energy storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage and by ...

2011-10-03T23:59:59.000Z

155

Strategic Intelligence Update: Energy Storage & Distributed Generation, September 2012  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy ...

2012-09-27T23:59:59.000Z

156

Strategic Intelligence Update: Energy Storage and Distributed Generation, September 2013  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades.Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy ...

2013-09-27T23:59:59.000Z

157

Strategic Intelligence Update: Energy Storage and Distributed Generation, November 2013  

Science Conference Proceedings (OSTI)

Energy Storage and distributed generation technologies add value to a wide range of applications within the electric utility enterprise. Both energy storage and distributed generation systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage has the ability to improve the value of intermittent renewable resources and to provide multiple benefit streams through energy arbitrage ...

2013-11-25T23:59:59.000Z

158

Self-generated magnetic fields in q-distributed plasmas  

SciTech Connect

A quasi-steady magnetic field can be generated with high-frequency electromagnetic radiation through wave-wave and wave-particle interactions in astrophysical plasmas and laser-produced plasmas. Nonlinear coupling equations of self-generated magnetic fields are obtained in nonextensive distribution frame, as a generalization for the standard Maxwellian distribution frame. The numerical results show that self-generated magnetic fields may collapse and lead to various turbulent patterns with different index q.

Li Dingguo [School of Materials Science and Engineering, Nanchang University, Nanchang 330047 (China); School of Nuclear Engineering and Technology, East China Institute of Technology, Fuzhou 344000 (China); Liu Sanqiu [School of Materials Science and Engineering, Nanchang University, Nanchang 330047 (China); School of Science, Nanchang University, Nanchang 330047 (China); Li Xiaoqing [School of Science, Nanchang University, Nanchang 330047 (China)

2013-02-15T23:59:59.000Z

159

Using Distributed Tri-generation Systems for Neighborhood Hydrogen Refueling  

E-Print Network (OSTI)

Using Distributed Tri-generation Systems for Neighborhood Hydrogen Refueling Xuping Li and Joan: Xuping Li (Xupli@ucdavis.edu), Joan Ogden (jmogden@ucdavis.edu) INTRODUCTION TRI-GENERATION SYSTEM AND NEIGHBORHOOD REFUELING DESCRIPTION METHODS AND DATA CONCLUSIONS An engineering/economic model for H2 tri-generation

California at Davis, University of

160

Distributed Generation Source Stiffness and Its Impact on Voltage Distortion  

Science Conference Proceedings (OSTI)

Distributed generators with loads that create high harmonics can cause excessive voltage distortion. This report's objective was to evaluate under controlled laboratory conditions voltage distortion resulting from application of nonlinear load for three different types of rotary generators and one inverter-based generator. Test results also were used to verify the analytical model for predicting voltage distortion from nonlinear load application.

2001-11-27T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

Optimal study of distributed generation impact on electrical distribution networks using GA and generalized reduced gradient  

Science Conference Proceedings (OSTI)

This paper presents the effect of Distributed Generators (DG) existence in the electrical power distribution networks taking IEEE 14 and IEEE 30 bus test feeders as proposed systems. The analysis is done to examine the effect on the overall system losses ... Keywords: IEEE 14 bus system, IEEE 30 bus system and optimization, distributed generator (DG), generalized reduced gradient (GRG), genetic algorithms (GA)

Samuel Raafat Fahim; Walid Helmy; Hany M. Hasanien; M. A. L. Badr

2011-03-01T23:59:59.000Z

162

Steam Generator Management Program: Thermal-Hydraulic Analysis of Representative Steam Generators with Various Tube Support Plate B lockages  

Science Conference Proceedings (OSTI)

Three primary-to-secondary leaks recently occurred at Cruas in France. The steam generators at Cruas were designed with a chimney region near the centerline, where 12 tubes were omitted but broach holes were still present in the tube support plates (TSPs). Sludge deposits accumulated in broached holes of the upper TSPs of the Cruas units. All three leaks were located near the chimney region and just above the top TSP. NRC Information Notice 2007-37, Buildup of Deposits in Steam Generators, was issued to ...

2008-12-22T23:59:59.000Z

163

Assessment of Microturbines as Distributed Generators  

Science Conference Proceedings (OSTI)

It has been suggested that microturbines will be the next major development in power generation technology. Just as industrial gas turbines are seen as having refuted the assumption that low cost power could only be produced by large power plants, there is a perception that small, mass-produced microturbines could produce grid-competitive power in kW-scale units. How realistic are the performance and cost claims of microturbine manufactures and what is the likely timeframe for the commercialization of th...

1999-12-13T23:59:59.000Z

164

Notice of Study Availability - Potential Benefits of Distributed Generation  

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

Study Availability - Potential Benefits of Distributed Study Availability - Potential Benefits of Distributed Generation and Rate-Related Issues That May Impede Their Expansion: Federal Register Notice Volume 72, No. 40 - Mar. 1, 2007 Notice of Study Availability - Potential Benefits of Distributed Generation and Rate-Related Issues That May Impede Their Expansion: Federal Register Notice Volume 72, No. 40 - Mar. 1, 2007 Federal Register Notice of availability of a study of the potential benefits of distributed generation and rate-related issues that may impede their expansion, and request for public comment. Study of the Potential Benefits of Distributed Generation and Rate- Related Issues That May Impede Their Expansion More Documents & Publications Notice of inquiry and request for Information - Study of the potential

165

Can Satellite Sampling of Offshore Wind Speeds Realistically Represent Wind Speed Distributions?  

Science Conference Proceedings (OSTI)

Wind speeds over the oceans are required for a range of applications but are difficult to obtain through in situ methods. Hence, remote sensing tools, which also offer the possibility of describing spatial variability, represent an attractive ...

R. J. Barthelmie; S. C. Pryor

2003-01-01T23:59:59.000Z

166

Planning Methodology to Determine Practical Circuit Limits for Distributed Generation  

Science Conference Proceedings (OSTI)

Utility distribution planners are increasingly faced with accommodating large sizes of distributed generation (DG) on their power distribution circuits. In many states, the renewable portfolio standards and incentives from various sources have resulted in larger solar PV installations than experienced previously. These are often located in parts of the distribution circuits where voltage is more difficult to regulate. This project investigated planning methodologies for determining practical limits for D...

2010-12-31T23:59:59.000Z

167

Options for Control of Reactive Power by Distributed Photovoltaic Generators  

E-Print Network (OSTI)

High penetration levels of distributed photovoltaic(PV) generation on an electrical distribution circuit present several challenges and opportunities for distribution utilities. Rapidly varying irradiance conditions may cause voltage sags and swells that cannot be compensated by slowly responding utility equipment resulting in a degradation of power quality. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We discuss and compare via simulation various design options for control systems to manage the reactive power generated by these inverters. An important design de...

Sulc, Petr; Backhaus, Scott; Chertkov, Michael

2010-01-01T23:59:59.000Z

168

Engineering Guide for Integration of Distributed Generation and Storage into Power Distribution Systems  

Science Conference Proceedings (OSTI)

Distributed resources (DR) hold great promise for improving the efficiency and reliability of electric power systems. The work described in this report focuses on distributed generation and storage, a subset of the larger family of DR technologies.

2000-12-11T23:59:59.000Z

169

Management of Active Distribution Networks with High Penetration of Distributed Generation.  

E-Print Network (OSTI)

??The penetration of distributed generation and wind power in particular is expected to increase significantly over the coming years, and a huge shift in control, (more)

Arram, Ahmed

2012-01-01T23:59:59.000Z

170

Distributed Generation System Characteristics and Costs in the Buildings  

Gasoline and Diesel Fuel Update (EIA)

1.6 mb) 1.6 mb) Appendix A - Photovoltaic (PV) Cost and Performance Characteristics for Residential and Commercial Applications (1.0 mb) Appendix B - The Cost and Performance of Distributed Wind Turbines, 2010-35 (0.5 mb) Distributed Generation System Characteristics and Costs in the Buildings Sector Release date: August 7, 2013 Distributed generation in the residential and commercial buildings sectors refers to the on-site generation of energy, often electricity from renewable energy systems such as solar photovoltaics (PV) and small wind turbines. Many factors influence the market for distributed generation, including government policies at the local, state, and federal level, and project costs, which vary significantly depending on time, location, size, and application.

171

Determining the Adequate Level of Distributed Generation Penetration...  

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

Determining the Adequate Level of Distributed Generation Penetration in Future Grids Speaker(s): Johan Driesen Date: March 18, 2004 - 12:00pm Location: Bldg. 90 Seminar HostPoint...

172

Optimization of distributed generation penetration based on particle filtering  

Science Conference Proceedings (OSTI)

Distributed generation is small scale power cogeneration within an integrated energy network, that provides system wide and environmental benefits. Network benefits include enhancements to reliability, reduction of peak power requirements, improved power ...

Nurcin Celik; Juan Pablo Senz; Xiaoran Shi

2012-12-01T23:59:59.000Z

173

Distributed Generation Case Study: Industrial Process Heating (Cogeneration)  

Science Conference Proceedings (OSTI)

This report details candidate distributed generation (DIS-GEN) options and the process used to select a cogeneration system for potential development at an industrial site. The local utility commissioned this evaluation to explore energy partnership opportunities with its customer.

1997-12-31T23:59:59.000Z

174

Distributed Generation Investment by a Microgrid Under Uncertainty  

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

Distributed Generation Investment by a Microgrid Under Uncertainty Distributed Generation Investment by a Microgrid Under Uncertainty Speaker(s): Afzal Siddiqui Date: July 24, 2006 - 12:00pm Location: 90-3122 This study examines a California-based microgrid's decision to invest in a distributed generation (DG) unit that operates on natural gas. While the long-term natural gas generation cost is stochastc, we initially assume that the microgrid may purchase electricity at a fixed retail rate from its utility. Using the real options approach, we find natural gas generation cost thresholds that trigger DG investment. Furthermore, the consideration of operational flexibility by the microgrid accelerates DG investment, while the option to disconnect entirely from the utility is not attractive. By allowing the electricity price to be stochastic, we next determine an

175

Distributed Renewable Energy Generation Impacts on Microgrid Operation and Reliability  

Science Conference Proceedings (OSTI)

Microgrids incorporating distributed generation, and particularly those incorporating renewable energy technologies, have the potential to improve electric power system efficiency and reliability while providing novel benefits to their owners, operators, and the system as a whole. This report focuses on the impact of renewable energy technologies on microgrids and on the larger question of the impact of distributed generation and microgrids on the electric power system.

2002-02-06T23:59:59.000Z

176

Local control of reactive power by distributed photovoltaic generators  

SciTech Connect

High penetration levels of distributed photovoltaic (PV) generation on an electrical distribution circuit may severely degrade power quality due to voltage sags and swells caused by rapidly varying PV generation during cloud transients coupled with the slow response of existing utility compensation and regulation equipment. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We suggest a local control scheme that dispatches reactive power from each PV inverter based on local instantaneous measurements of the real and reactive components of the consumed power and the real power generated by the PVs. Using one adjustable parameter per circuit, we balance the requirements on power quality and desire to minimize thermal losses. Numerical analysis of two exemplary systems, with comparable total PV generation albeit a different spatial distribution, show how to adjust the optimization parameter depending on the goal. Overall, this local scheme shows excellent performance; it's capable of guaranteeing acceptable power quality and achieving significant saving in thermal losses in various situations even when the renewable generation in excess of the circuit own load, i.e. feeding power back to the higher-level system.

Chertkov, Michael [Los Alamos National Laboratory; Turitsyn, Konstantin [Los Alamos National Laboratory; Sulc, Petr [Los Alamos National Laboratory; Backhaus, Scott [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

177

PHEV Energy Use Estimation: Validating the Gamma Distribution for Representing the Random Daily Driving Distance  

SciTech Connect

The petroleum and electricity consumptions of plug-in hybrid electric vehicles (PHEVs) are sensitive to the variation of daily vehicle miles traveled (DVMT). Some studies assume DVMT to follow a Gamma distribution, but such a Gamma assumption is yet to be validated. This study finds the Gamma assumption valid in the context of PHEV energy analysis, based on continuous GPS travel data of 382 vehicles, each tracked for at least 183 days. The validity conclusion is based on the found small prediction errors, resulting from the Gamma assumption, in PHEV petroleum use, electricity use, and energy cost. The finding that the Gamma distribution is valid and reliable is important. It paves the way for the Gamma distribution to be assumed for analyzing energy uses of PHEVs in the real world. The Gamma distribution can be easily specified with very few pieces of driver information and is relatively easy for mathematical manipulation. Given the validation in this study, the Gamma distribution can now be used with better confidence in a variety of applications, such as improving vehicle consumer choice models, quantifying range anxiety for battery electric vehicles, investigating roles of charging infrastructure, and constructing online calculators that provide personal estimates of PHEV energy use.

Lin, Zhenhong [ORNL; Dong, Jing [ORNL; Liu, Changzheng [ORNL; Greene, David L [ORNL

2012-01-01T23:59:59.000Z

178

Distributed generation capabilities of the national energy modeling system  

SciTech Connect

This report describes Berkeley Lab's exploration of how the National Energy Modeling System (NEMS) models distributed generation (DG) and presents possible approaches for improving how DG is modeled. The on-site electric generation capability has been available since the AEO2000 version of NEMS. Berkeley Lab has previously completed research on distributed energy resources (DER) adoption at individual sites and has developed a DER Customer Adoption Model called DER-CAM. Given interest in this area, Berkeley Lab set out to understand how NEMS models small-scale on-site generation to assess how adequately DG is treated in NEMS, and to propose improvements or alternatives. The goal is to determine how well NEMS models the factors influencing DG adoption and to consider alternatives to the current approach. Most small-scale DG adoption takes place in the residential and commercial modules of NEMS. Investment in DG ultimately offsets purchases of electricity, which also eliminates the losses associated with transmission and distribution (T&D). If the DG technology that is chosen is photovoltaics (PV), NEMS assumes renewable energy consumption replaces the energy input to electric generators. If the DG technology is fuel consuming, consumption of fuel in the electric utility sector is replaced by residential or commercial fuel consumption. The waste heat generated from thermal technologies can be used to offset the water heating and space heating energy uses, but there is no thermally activated cooling capability. This study consists of a review of model documentation and a paper by EIA staff, a series of sensitivity runs performed by Berkeley Lab that exercise selected DG parameters in the AEO2002 version of NEMS, and a scoping effort of possible enhancements and alternatives to NEMS current DG capabilities. In general, the treatment of DG in NEMS is rudimentary. The penetration of DG is determined by an economic cash-flow analysis that determines adoption based on the n umber of years to a positive cash flow. Some important technologies, e.g. thermally activated cooling, are absent, and ceilings on DG adoption are determined by some what arbitrary caps on the number of buildings that can adopt DG. These caps are particularly severe for existing buildings, where the maximum penetration for any one technology is 0.25 percent. On the other hand, competition among technologies is not fully considered, and this may result in double-counting for certain applications. A series of sensitivity runs show greater penetration with net metering enhancements and aggressive tax credits and a more limited response to lowered DG technology costs. Discussion of alternatives to the current code is presented in Section 4. Alternatives or improvements to how DG is modeled in NEMS cover three basic areas: expanding on the existing total market for DG both by changing existing parameters in NEMS and by adding new capabilities, such as for missing technologies; enhancing the cash flow analysis but incorporating aspects of DG economics that are not currently represented, e.g. complex tariffs; and using an external geographic information system (GIS) driven analysis that can better and more intuitively identify niche markets.

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Marnay, Chris

2003-01-01T23:59:59.000Z

179

Automatic generation of water distribution systems based on GIS data  

Science Conference Proceedings (OSTI)

In the field of water distribution system (WDS) analysis, case study research is needed for testing or benchmarking optimisation strategies and newly developed software. However, data availability for the investigation of real cases is limited due to ... Keywords: Algorithmic network generation, GIS-data, Hydraulic simulation, Modular design system, Water distribution system

Robert Sitzenfrei, Michael MDerl, Wolfgang Rauch

2013-09-01T23:59:59.000Z

180

Study on Simulation of Distribution Generation on PSCAD/EMTDC  

Science Conference Proceedings (OSTI)

With the application of renewable energy, Distribution Generation (DG) will play a more important role in power systems in the near future. This paper describes the methods of modeling and simulation about photovoltaic cell, fuel cell and small aero ... Keywords: DG, photovoltaic cell, fuel cell, small aero generator, PSCAD/EMTDC

Ke-Ping Zhu; Dao-Zhuo Jiang; Yang Zhou

2012-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

Distributed Generation Investment by a Microgrid under Uncertainty++++ Afzal Siddiqui  

E-Print Network (OSTI)

1 Distributed Generation Investment by a Microgrid under Uncertainty++++ Afzal Siddiqui University, CA 94720-8163, USA, c_marnay@lbl.gov ABSTRACT. This paper examines a California-based microgrid-term natural gas generation cost is stochastic, we initially assume that the microgrid may purchase electricity

Guillas, Serge

182

Identifying distributed generation and demand side management investment opportunities  

SciTech Connect

Electric utilities have historically satisfied customer demand by generating electricity centrally and distributing it through an extensive transmission and distribution network. The author examines targeted demand side management programs as an alternative to system capacity investments once capacity is exceeded. The paper presents an evaluation method to determine how much a utility can afford to pay for distributed resources. 17 refs., 2 figs, 1 tab.

Hoff, T.E. [Stanford Univ., CA (United States)

1996-12-31T23:59:59.000Z

183

Next-Generation Distributed Power Management for Photovoltaic Systems  

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

Next-Generation Distributed Power Management for Photovoltaic Systems Next-Generation Distributed Power Management for Photovoltaic Systems Speaker(s): Jason Stauth Date: July 29, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Steven Lanzisera In recent years, the balance of systems (BOS) side of photovoltaic (PV) energy has become a major focus in the effort to drive solar energy towards grid parity. The power management architecture has expanded to include a range of distributed solutions, including microinverters and 'micro' DC-DC converters to solve problems with mismatch (shading), expand networking and control, and solve critical BOS issues such as fire safety. This talk will introduce traditional and distributed approaches for PV systems, and will propose a next-generation architecture based on a new

184

A Symplectic Method to Generate Multivariate Normal Distributions  

E-Print Network (OSTI)

The AMAS group at the Paul Scherrer Institute developed an object oriented library for high performance simulation of high intensity ion beam transport with space charge. Such particle-in-cell (PIC) simulations require a method to generate multivariate particle distributions as starting conditions. In a preceeding publications it has been shown that the generators of symplectic transformations in two dimensions are a subset of the real Dirac matrices (RDMs) and that few symplectic transformations are required to transform a quadratic Hamiltonian into diagonal form. Here we argue that the use of RDMs is well suited for the generation of multivariate normal distributions with arbitrary covariances. A direct and simple argument supporting this claim is that this is the "natural" way how such distributions are formed. The transport of charged particle beams may serve as an example: An uncorrelated gaussian distribution of particles starting at some initial position of the accelerator is subject to linear deformat...

Baumgarten, Christian

2012-01-01T23:59:59.000Z

185

Investment and Upgrade in Distributed Generation under Uncertainty  

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

Investment and Upgrade in Distributed Generation under Uncertainty Investment and Upgrade in Distributed Generation under Uncertainty Speaker(s): Afzal Siddiqui Karl Maribu Date: September 4, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Galen Barbose The ongoing deregulation of electricity industries worldwide is providing incentives for microgrids to use small-scale distributed generation (DG) and combined heat and power (CHP) applications via heat exchangers (HXs) to meet local energy loads. Although the electric-only effciency of DG is lower than that of central-station production, relatively high tariff rates and the potential for CHP applications increase the attractiveness of on-site generation. Nevertheless, a microgrid contemplating the installation of gas-fired DG has to be aware of the uncertainty in the

186

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

Science Conference Proceedings (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

187

How well do time-integrated K{sub {alpha}} images represent hot electron spatial distributions?  

SciTech Connect

A computational study is described, which addresses how well spatially resolved time-integrated K{sub {alpha}} images recorded in intense laser-plasma experiments correlate with the distribution of ''hot'' (>1 MeV) electrons as they propagate through the target. The hot electron angular distribution leaving the laser-plasma region is critically important for many applications such as Fast Ignition or laser based x-ray sources; and K{sub {alpha}} images are commonly used as a diagnostic. It is found that K{sub {alpha}} images can easily mislead due to refluxing and other effects. Using the particle-in-cell code LSP, it is shown that a K{sub {alpha}} image is not solely determined by the initial population of forward directed hot electrons, but rather also depends upon ''delayed'' hot electrons, and in fact continues to evolve long after the end of the laser interaction. Of particular note, there is a population of hot electrons created during the laser-plasma interaction that acquire a velocity direction opposite that of the laser and subsequently reflux off the front surface of the target, deflect when they encounter magnetic fields in the laser-plasma region, and then traverse the target in a wide spatial distribution. These delayed fast electrons create significant features in the K{sub {alpha}} time-integrated images. Electrons refluxing from the sides and the back of the target are also found to play a significant role in forming the final K{alpha} image. The relative contribution of these processes is found to vary depending on depth within target. These effects make efforts to find simple correlations between K{alpha} images and, for example, Fast Ignition relevant parameters prone to error. Suggestions for future target design are provided.

Ovchinnikov, V. M.; Kemp, G. E.; Schumacher, D. W.; Freeman, R. R.; Van Woerkom, L. D. [Physics Department, Ohio State University, Columbus, Ohio 43210 (United States)

2011-07-15T23:59:59.000Z

188

Options for Control of Reactive Power by Distributed Photovoltaic Generators  

E-Print Network (OSTI)

High penetration levels of distributed photovoltaic(PV) generation on an electrical distribution circuit present several challenges and opportunities for distribution utilities. Rapidly varying irradiance conditions may cause voltage sags and swells that cannot be compensated by slowly responding utility equipment resulting in a degradation of power quality. Although not permitted under current standards for interconnection of distributed generation, fast-reacting, VAR-capable PV inverters may provide the necessary reactive power injection or consumption to maintain voltage regulation under difficult transient conditions. As side benefit, the control of reactive power injection at each PV inverter provides an opportunity and a new tool for distribution utilities to optimize the performance of distribution circuits, e.g. by minimizing thermal losses. We discuss and compare via simulation various design options for control systems to manage the reactive power generated by these inverters. An important design decision that weighs on the speed and quality of communication required is whether the control should be centralized or distributed (i.e. local). In general, we find that local control schemes are capable for maintaining voltage within acceptable bounds. We consider the benefits of choosing different local variables on which to control and how the control system can be continuously tuned between robust voltage control, suitable for daytime operation when circuit conditions can change rapidly, and loss minimization better suited for nighttime operation.

Petr Sulc; Konstantin Turitsyn; Scott Backhaus; Michael Chertkov

2010-08-04T23:59:59.000Z

189

Integration of Demand Side Management, Distributed Generation, Renewable  

Open Energy Info (EERE)

Integration of Demand Side Management, Distributed Generation, Renewable Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages: State-of-the-Art Report, Volume 2, Annexes Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages: State-of-the-Art Report, Volume 2, Annexes Focus Area: Renewable Energy Topics: Policy, Deployment, & Program Impact Website: www.ieadsm.org/Files/Tasks/Task%20XVII%20-%20Integration%20of%20Demand Equivalent URI: cleanenergysolutions.org/content/integration-demand-side-management-di Language: English Policies: Regulations Regulations: Resource Integration Planning This report provides Annexes 1 through 7, which are country reports from

190

Determining the Adequate Level of Distributed Generation Penetration in  

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

Determining the Adequate Level of Distributed Generation Penetration in Determining the Adequate Level of Distributed Generation Penetration in Future Grids Speaker(s): Johan Driesen Date: March 18, 2004 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Kristina LaCommare In this talk, Johan will discuss the technical barriers met while deploying distributed generation (DG) technology in the grid. These are related to voltage quality, reliability, stability of the grid, but also safety, environmental and economic issues are important. Eventually, the question 'how far can you go ?' is addressed. The range from small-scale local DG such as photovoltaics to large-scale (off-shore) wind farms are dealt with, each with their specific issues. The talk is illustrated with examples from research projects at the KULeuven financied by national and European

191

Poland - Economic and Financial Benefits of Distributed Generation  

Open Energy Info (EERE)

Poland - Economic and Financial Benefits of Distributed Generation Poland - Economic and Financial Benefits of Distributed Generation Small-Scale, Gas-Fired CHP Jump to: navigation, search Name Poland - Economic and Financial Benefits of Distributed Generation Small-Scale, Gas-Fired CHP Agency/Company /Organization Argonne National Laboratory Sector Energy Topics Background analysis Website http://www.dis.anl.gov/pubs/41 Country Poland Eastern Europe References http://www.dis.anl.gov/pubs/41763.pdf This article is a stub. You can help OpenEI by expanding it. The Polish energy markets have recently been restructured, opening the door to new players with access to new products and instruments. In response to this changed environment, the Government of Poland and the Polish Power Grid Company were interested in analyzing the competitiveness of

192

Distributed Generation Study/SUNY Buffalo | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Study/SUNY Buffalo Distributed Generation Study/SUNY Buffalo < Distributed Generation Study Jump to: navigation, search Study Location Buffalo, New York Site Description Institutional-School/University Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Gerster Trane System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 120 kW0.12 MW 120,000 W 120,000,000 mW 1.2e-4 GW 1.2e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 600000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2002/12/11 Monitoring Termination Date 2004/08/11

193

Distributed Generation: Which technologies? How fast will they emerge?  

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

Distributed Generation: Which technologies? How fast will they emerge? Distributed Generation: Which technologies? How fast will they emerge? Speaker(s): Tony DeVuono Date: March 16, 2000 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Julie Osborn Utility deregulation, environmental issues, increases in electricity demand, natural gas/electricity rate changes, new technologies, and several other key drivers are stimulating distributed generation globally. The technologies that have pushed ahead of the pack are micro turbines and fuel cells. Since Modine is a world leader in the manufacturing of heat transfer equipment, we are eager to play in this new, emerging market. Are the market drivers real? Will these technologies survive or even thrive? What are the pitfalls? If you had the responsibility in your company to spend millions and direct dozens of people down the DG path,

194

Cascade Failures from Distributed Generation in Power Grids  

E-Print Network (OSTI)

Power grids are nowadays experiencing a transformation due to the introduction of Distributed Generation based on Renewable Sources. At difference with classical Distributed Generation, where local power sources mitigate anomalous user consumption peaks, Renewable Sources introduce in the grid intrinsically erratic power inputs. By introducing a simple schematic (but realistic) model for power grids with stochastic distributed generation, we study the effects of erratic sources on the robustness of several IEEE power grid test networks with up to 2000 buses. We find that increasing the penetration of erratic sources causes the grid to fail with a sharp transition. We compare such results with the case of failures caused by the natural increasing power demand.

Scala, Antonio; Scoglio, Caterina

2012-01-01T23:59:59.000Z

195

Integration of Demand Side Management, Distributed Generation, Renewable  

Open Energy Info (EERE)

Integration of Demand Side Management, Distributed Generation, Renewable Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages: State-of-the-Art Report, Volume 1, Main Report Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Integration of Demand Side Management, Distributed Generation, Renewable Energy Sources, and Energy Storages: State-of-the-Art Report, Volume 1, Main Report Focus Area: Renewable Energy Topics: Policy, Deployment, & Program Impact Website: www.ieadsm.org/Files/Tasks/Task%20XVII%20-%20Integration%20of%20Demand Equivalent URI: cleanenergysolutions.org/content/integration-demand-side-management-di Language: English Policies: Regulations Regulations: Resource Integration Planning This task of the International Energy Agency's (IEA's) Demand-Side

196

List of Other Distributed Generation Technologies Incentives | Open Energy  

Open Energy Info (EERE)

Incentives Incentives Jump to: navigation, search The following contains the list of 123 Other Distributed Generation Technologies Incentives. CSV (rows 1 - 123) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active APS - Renewable Energy Incentive Program (Arizona) Utility Rebate Program Arizona Commercial Residential Anaerobic Digestion Biomass Daylighting Geothermal Electric Ground Source Heat Pumps Landfill Gas Other Distributed Generation Technologies Photovoltaics Small Hydroelectric Solar Pool Heating Solar Space Heat Solar Thermal Process Heat Solar Water Heat Wind energy Yes Alternative Energy Portfolio Standard (Pennsylvania) Renewables Portfolio Standard Pennsylvania Investor-Owned Utility Retail Supplier Building Insulation Ceiling Fan

197

Emission Control Options for Distributed Resource Generators: A White Paper  

Science Conference Proceedings (OSTI)

This report analyzes the performance and cost of conventional and emerging emission control technologies for distributed resource generators (combustion turbines, microturbines, and reciprocating engines). The performance is benchmarked against the proposed California Air Resources Board (CARB) small generator certification standards for 2007, the most stringent of several emissions certification standards adopted or being considered. The costs are provided as capital cost and cost of electricity for emi...

2005-03-23T23:59:59.000Z

198

Spectral Phase Distribution Retrieval through Coherent Control of Harmonic Generation  

SciTech Connect

The temporal intensity distribution of the third harmonic of a Ti:sapphire laser generated in Xe gas is fully reconstructed from its spectral phase and amplitude distributions. The spectral phases are retrieved by cross correlating the fundamental laser frequency field with that of the third harmonic, in a three laser versus one harmonic photon coupling scheme. The third harmonic spectral amplitude distribution is extracted from its field autocorrelation. The measured pulse duration is found to be in agreement with that expected from lowest order perturbation theory both for unstretched and chirped pulses.

Papalazarou, E.; Charalambidis, D. [Foundation for Research and Technology - Hellas, Institute of Electronic Structure and Laser, PO Box 1527, GR711 10 Heraklion (Crete) (Greece); Department of Physics, University of Crete, PO Box 2208, GR71003 Heraklion (Crete) (Greece); Kovacev, M.; Tzallas, P.; Benis, E.P.; Kalpouzos, C. [Foundation for Research and Technology - Hellas, Institute of Electronic Structure and Laser, PO Box 1527, GR711 10 Heraklion (Crete) (Greece); Tsakiris, G. D. [Max-Planck-Institut fuer Quantenoptik, D-85748 Garching (Germany)

2006-04-28T23:59:59.000Z

199

Generating electron cyclotron resonance plasma using distributed scheme  

Science Conference Proceedings (OSTI)

This study employs a distributed microwave input system and permanent magnets to generate large-area electron cyclotron resonance (ECR) plasma. ECR plasmas were generated with nitrogen gas, and the plasma density was measured by Langmuir probe. A uniform ECR plasma with the electron density fluctuation of {+-}9.8% over 500 mm Multiplication-Sign 500 mm was reported. The proposed idea of generating uniform ECR plasma can be scaled to a much larger area by using n Multiplication-Sign n microwave input array system together with well-designed permanent magnets.

Huang, C. C. [Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan (China); Chung-Shan Institute of Science and Technology, Lung-Tan, Taoyuan, Taiwan (China); Chang, T. H.; Chen, N. C.; Chao, H. W. [Department of Physics, National Tsing Hua University, Hsinchu, Taiwan (China); Chen, C. C. [Chung-Shan Institute of Science and Technology, Lung-Tan, Taoyuan, Taiwan (China); Chou, S. F. [Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan (China)

2012-08-06T23:59:59.000Z

200

Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings  

Science Conference Proceedings (OSTI)

Lawrence Berkeley National Laboratory (LBL) is working with the California Energy Commission (CEC) to determine the role of distributed generation (DG) in greenhouse gas reductions. The impact of DG on large industrial sites is well known, and mostly, the potentials are already harvested. In contrast, little is known about the impact of DG on commercial buildings with peak electric loads ranging from 100 kW to 5 MW. We examine how DG with combined heat and power (CHP) may be implemented within the context of a cost minimizing microgrid that is able to adopt and operate various smart energy technologies, such as thermal and photovoltaic (PV) on-site generation, heat exchangers, solar thermal collectors, absorption chillers, and storage systems. We use a mixed-integer linear program (MILP) that has the minimization of a site's annual energy costs as objective. Using 138 representative commercial sites in California (CA) with existing tariff rates and technology data, we find the greenhouse gas reduction potential for California's commercial sector. This paper shows results from the ongoing research project and finished work from a two year U.S. Department of Energy research project. To show the impact of the different technologies on CO2 emissions, several sensitivity runs for different climate zones within CA with different technology performance expectations for 2020 were performed. The considered sites can contribute between 1 Mt/a and 1.8 Mt/a to the California Air Resources Board (CARB) goal of 6.7Mt/a CO2 abatement potential in 2020. Also, with lower PV and storage costs as well as consideration of a CO2 pricing scheme, our results indicate that PV and electric storage adoption can compete rather than supplement each other when the tariff structure and costs of electricity supply have been taken into consideration. To satisfy the site's objective of minimizing energy costs, the batteries will be charged also by CHP systems during off-peak and mid-peak hours and not only by PV during sunny on-peak hours.

Stadler, Michael; Marnay, Chris; Cardoso, Goncalo; Megel, Olivier; Siddiqui, Afzal; Lai, Judy

2009-08-15T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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.


201

Internal Combustion Engine Advances for Distributed Generation Markets  

Science Conference Proceedings (OSTI)

Internal combustion engines (ICEs) can play a potentially significant role as a distributed generation resource. This report provides intelligence on vendor programs and on advances in ICE technology that could lead to commercial offerings within a 2-5 year time frame.

1997-09-30T23:59:59.000Z

202

The Generation of Random Variates From a Relativistic Maxwellian Distribution  

E-Print Network (OSTI)

A procedure for generating random variates from a relativistic Maxwellian distribution with arbitrary temperature and drift velocity is presented. The algorithm is based on the rejection method and can be used to initialize particle velocities in kinetic simulations of plasmas and gases.

Swisdak, M

2013-01-01T23:59:59.000Z

203

Modeling Distributed Electricity Generation in the NEMS Buildings Models  

Reports and Publications (EIA)

This paper presents the modeling methodology, projected market penetration, and impact of distributed generation with respect to offsetting future electricity needs and carbon dioxide emissions in the residential and commercial buildings sector in the Annual Energy Outlook 2000 (AEO2000) reference case.

Erin Boedecker

2011-01-25T23:59:59.000Z

204

Distributed Generation Market Study: Advanced Turbine System Program  

Science Conference Proceedings (OSTI)

The ultra high efficiency, environmental superiority, and cost competitiveness of advanced turbine systems (ATSs) makes them attractive candidates for use in the near future in distributed generation applications. This study found that ATS engines with the cost and performance characteristics provided by Allison Engine Company (Allison) could have a significant regional market in the 2000-2005 time period.

1999-03-10T23:59:59.000Z

205

Cascading Failures in Smart Grid -Benefits of Distributed Generation  

E-Print Network (OSTI)

Cascading Failures in Smart Grid - Benefits of Distributed Generation Xian Chen, Hieu Dinh, Bing reliability and reducing the risk of cascading blackouts is a critical issue. Smart grid is envisioned Wang Computer Science & Engineering Department, University of Connecticut, Storrs, CT 06269 Abstract--Smart

Wang, Bing

206

Energy Storage and Distributed Energy Generation Project, Final Project Report  

Science Conference Proceedings (OSTI)

This report serves as a Final Report under the Energy Storage and Distribution Energy Generation Project carried out by the Transportation Energy Center (TEC) at the University of Michigan (UM). An interdisciplinary research team has been working on fundamental and applied research on: -distributed power generation and microgrids, -power electronics, and -advanced energy storage. The long-term objective of the project was to provide a framework for identifying fundamental research solutions to technology challenges of transmission and distribution, with special emphasis on distributed power generation, energy storage, control methodologies, and power electronics for microgrids, and to develop enabling technologies for novel energy storage and harvesting concepts that can be simulated, tested, and scaled up to provide relief for both underserved and overstressed portions of the Nations grid. TECs research is closely associated with Sections 5.0 and 6.0 of the DOE "Five-year Program Plan for FY2008 to FY2012 for Electric Transmission and Distribution Programs, August 2006.

Schwank, Johannes; Mader, Jerry; Chen, Xiaoyin; Mi, Chris; Linic, Suljo; Sastry, Ann Marie; Stefanopoulou, Anna; Thompson, Levi; Varde, Keshav

2008-03-31T23:59:59.000Z

207

Iowa Distributed Wind Generation Project | Open Energy Information  

Open Energy Info (EERE)

Generation Project Generation Project Jump to: navigation, search Name Iowa Distributed Wind Generation Project Facility Iowa Distributed Wind Generation Project Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Consortium -- Cedar Falls leads with 2/3 ownership Developer Iowa Distributed Wind Generation Project Energy Purchaser Consortium -- Cedar Falls leads with 2/3 ownership Location Algona IA Coordinates 43.0691°, -94.2255° 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":43.0691,"lon":-94.2255,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

208

Hardware generation of arbitrary random number distributions from uniform distributions via the inversion method  

Science Conference Proceedings (OSTI)

We present an automated methodology for producing hardware-based random number generator (RNG) designs for arbitrary distributions using the inverse cumulative distribution function (ICDF). The ICDF is evaluated via piecewise polynomial approximation ... Keywords: Chebyshev approximation and theory, algorithms implemented in hardware, automatic synthesis, computer arithmetic, elementary function approximation, error analysis, gate arrays, piecewise polynomial approximation

Ray C. C. Cheung; Dong-U Lee; Wayne Luk; John D. Villasenor

2007-08-01T23:59:59.000Z

209

Introduction to Distributed Generation and the CERTS Microgrid  

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

Introduction to Distributed Generation and the CERTS Microgrid Introduction to Distributed Generation and the CERTS Microgrid Speaker(s): Chris Marnay Date: December 3, 2002 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Kristina LaCommare This is a first in a series of at least 5 seminars around the winter break to survey Distributed Energy Resources (DER) research questions and various Berkeley capabilities available to address them. The electricity industry in industrialized countries may be about to reverse a century long trend towards ever larger scale, ever more centrally controlled power systems. The emergence of technologies that are competitive at small scales, close to loads, in large part because of the opportunities created to capture waste heat and locally control power quality might signal a radical

210

A Radical Distributed Architecture for Local Energy Generation,  

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

A Radical Distributed Architecture for Local Energy Generation, A Radical Distributed Architecture for Local Energy Generation, Distribution, and Sharing Speaker(s): Randy Katz Date: April 25, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Galen Barbose The LoCal Project is developing Information Age solutions to the limiting resource of this century: energy. One hundred fifty years ago, humanity was transformed by harnessing energy for machinery and work. Toil by hand became routinely mechanized, inconceivable constructions became reality, and powered transport shrunk the world. A century later, computers brought an equally profound transformation, replacing mundane bookkeeping and obviating libraries, simulating the imperceptible, and placing knowledge at our fingertips. Information processing has sustained a 50-100% annualized

211

Distributed Generation Investment by a Microgrid under Uncertainty  

Science Conference Proceedings (OSTI)

This paper examines a California-based microgrid?s decision to invest in a distributed generation (DG) unit fuelled by natural gas. While the long-term natural gas generation cost is stochastic, we initially assume that the microgrid may purchase electricity at a fixed retail rate from its utility. Using the real options approach, we find a natural gas generation cost threshold that triggers DG investment. Furthermore, the consideration of operational flexibility by the microgrid increases DG investment, while the option to disconnect from the utility is not attractive. By allowing the electricity price to be stochastic, we next determine an investment threshold boundary and find that high electricity price volatility relative to that of natural gas generation cost delays investment while simultaneously increasing the value of the investment. We conclude by using this result to find the implicit option value of the DG unit when two sources of uncertainty exist.

Marnay, Chris; Siddiqui, Afzal; Marnay, Chris

2008-08-11T23:59:59.000Z

212

Distributed Generation Investment by a Microgrid UnderUncertainty  

Science Conference Proceedings (OSTI)

This paper examines a California-based microgrid s decision to invest in a distributed generation (DG) unit that operates on natural gas. While the long-term natural gas generation cost is stochastic, we initially assume that the microgrid may purchase electricity at a fixed retail rate from its utility. Using the real options approach, we find natural gas generating cost thresholds that trigger DG investment. Furthermore, the consideration of operational flexibility by the microgrid accelerates DG investment, while the option to disconnect entirely from the utility is not attractive. By allowing the electricity price to be stochastic, we next determine an investment threshold boundary and find that high electricity price volatility relative to that of natural gas generating cost delays investment while simultaneously increasing the value of the investment. We conclude by using this result to find the implicit option value of the DG unit.

Siddiqui, Afzal; Marnay, Chris

2006-06-16T23:59:59.000Z

213

Current distribution and nonuniformity effects in MHD disk generators  

DOE Green Energy (OSTI)

Results of an experimental and analytical study of current distribution and nonuniformity effects in combustion driven MHD disk generators are presented. The overall objective of the study was to investigate the importance of these phenomena to baseload power generation. The experimental work consisted of combustion-driven steady state experiments with a peg-wall channel operated in a superconducting magnet. The peg-wall construction allowed current and voltage distributions to be measured. The channel was operated with plasma temperatures up to 2750 K and magnetic field strengths up to 5.5 Tesla. The magnitudes of the currents and voltages were reduced by significant loss mechanisms, primarily electrode losses and current leakage through the wall caused by potassium seed penetration of the castable ceramic between the pegs. A simple circuit model accounting for these losses was developed enabling comparisons to be made with analytical calculations. Under normal uniform electrical loading the distributions measured in the channel were uniform as expected. Nonuniform electrical loading was used to produce and measure effects on the current distribution that occur only in the presence of high magnetic fields as required for MHD power generation.

Roseman, D.F.

1982-08-01T23:59:59.000Z

214

Distributed Electrical Power Generation: Summary of Alternative Available Technologies  

E-Print Network (OSTI)

Approved for public release; distribution is unlimited. Prepared for U.S. Army Corps of Engineers Washington, DC 20314-1000ABSTRACT: The Federal government is the greatest consumer of electricity in the nation. Federal procurement and installation of higher efficiency energy sources promises many benefits, in terms of economy, employment, export, and environment. While distributed generation (DG) technologies offer many of the benefits of alternative, efficient energy sources, few DG systems can currently be commercially purchased off the shelf, and complicated codes and standards deter potential users. Federal use of distributed generation demonstrates the technology, can help drive down costs, and an help lead the general public to accept a changing energy scheme. This work reviews and describes various distributed generation technologies, including fuel cells, microturbines, wind turbines, photovoltaic arrays, and Stirling engines. Issues such as fuel availability, construction considerations, protection controls are addressed. Sources of further information are provided. DISCLAIMER: The contents of this report are not to be used for advertising, publication, or promotional purposes. Citation of trade names does not constitute an official endorsement or approval of the use of such commercial products. All product names and trademarks cited are the property of their respective owners. The findings of this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents.

Sarah J. Scott; Franklin H. Holcomb; Nicholas M. Josefik; Sarah J. Scott; Franklin H. Holcomb; Nicholas M. Josefik

2003-01-01T23:59:59.000Z

215

Protecting the Modern Distribution Grid: EPRI Survey on Distribution Protection with Emphasis on Distributed Generation Integration Practices  

Science Conference Proceedings (OSTI)

The increasing penetration of distributed generation (DG) has created the need for changing protection practices for electric utility distribution systems. An assessment of current practice and experiences is provided. This report is to make utility engineers aware of potential issues and present protection practices for systems with DG.BackgroundDistributed resources have had significant impacts on electric utility power delivery systems. Greater impacts are ...

2013-12-19T23:59:59.000Z

216

Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings  

Science Conference Proceedings (OSTI)

The motivation and objective of this research is to determine the role of distributed generation (DG) in greenhouse gas reductions by: (1) applying the Distributed Energy Resources Customer Adoption Model (DER-CAM); (2) using the California Commercial End-Use Survey (CEUS) database for commercial buildings; (3) selecting buildings with electric peak loads between 100 kW and 5 MW; (4) considering fuel cells, micro-turbines, internal combustion engines, gas turbines with waste heat utilization, solar thermal, and PV; (5) testing of different policy instruments, e.g. feed-in tariff or investment subsidies.

Marnay, Chris; Stadler, Michael; Lipman, Tim; Lai, Judy; Cardoso, Goncalo; Megel, Olivier

2009-09-01T23:59:59.000Z

217

Modeling and Verification of Distributed Generation and Voltage Regulation Equipment for Unbalanced Distribution Power Systems; Annual Subcontract Report, June 2007  

Science Conference Proceedings (OSTI)

This report summarizes the development of models for distributed generation and distribution circuit voltage regulation equipment for unbalanced power systems and their verification through actual field measurements.

Davis, M. W.; Broadwater, R.; Hambrick, J.

2007-07-01T23:59:59.000Z

218

Installation, Operation, and Maintenance Costs for Distributed Generation Technologies  

Science Conference Proceedings (OSTI)

Distributed generation (DG) is a broad term that encompasses both mature and emerging onsite power generation technologies with power output as small as 1 kW and as large as 20 MW. While the equipment or purchase cost of a DG system is very important, installation, operation, and maintenance (IOM) costs also are significant and often overlooked. This report reviews IOM costs for both mature and emerging DG technologies. Some equipment cost data is included for reference, but is not the focus of this repo...

2003-02-03T23:59:59.000Z

219

ANALYSIS OF DISTRIBUTION FEEDER LOSSES DUE TO ADDITION OF DISTRIBUTED PHOTOVOLTAIC GENERATORS  

SciTech Connect

Distributed generators (DG) are small scale power supplying sources owned by customers or utilities and scattered throughout the power system distribution network. Distributed generation can be both renewable and non-renewable. Addition of distributed generation is primarily to increase feeder capacity and to provide peak load reduction. However, this addition comes with several impacts on the distribution feeder. Several studies have shown that addition of DG leads to reduction of feeder loss. However, most of these studies have considered lumped load and distributed load models to analyze the effects on system losses, where the dynamic variation of load due to seasonal changes is ignored. It is very important for utilities to minimize the losses under all scenarios to decrease revenue losses, promote efficient asset utilization, and therefore, increase feeder capacity. This paper will investigate an IEEE 13-node feeder populated with photovoltaic generators on detailed residential houses with water heater, Heating Ventilation and Air conditioning (HVAC) units, lights, and other plug and convenience loads. An analysis of losses for different power system components, such as transformers, underground and overhead lines, and triplex lines, will be performed. The analysis will utilize different seasons and different solar penetration levels (15%, 30%).

Tuffner, Francis K.; Singh, Ruchi

2011-08-09T23:59:59.000Z

220

Distributed Generation Study/Harbec Plastics | Open Energy Information  

Open Energy Info (EERE)

< Distributed Generation Study < Distributed Generation Study Jump to: navigation, search Study Location Ontario, New York Site Description Industrial-Plastics Processing Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C30 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Northern Development System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 25 Stand-alone Capability None Power Rating 750 kW0.75 MW 750,000 W 750,000,000 mW 7.5e-4 GW 7.5e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 3750000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2005/10/06 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

Note: This page contains sample records for the topic "distributed generation represents" 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

April 2013 Most Viewed Documents for Power Generation And Distribution |  

Office of Scientific and Technical Information (OSTI)

April 2013 Most Viewed Documents for Power Generation And Distribution April 2013 Most Viewed Documents for Power Generation And Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 719 Seventh Edition Fuel Cell Handbook NETL (2004) 628 ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 343 Wet cooling towers: rule-of-thumb design and simulation Leeper, S.A. (1981) 290 Load flow analysis: Base cases, data, diagrams, and results Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; Peerenboom, J.P. (1997) 248 Controlled low strength materials (CLSM), reported by ACI Committee 229 Rajendran, N. (1997) 106 Micro-CHP Systems for Residential Applications Timothy DeValve; Benoit Olsommer (2007)

222

September 2013 Most Viewed Documents for Power Generation And Distribution  

Office of Scientific and Technical Information (OSTI)

Power Generation And Distribution Power Generation And Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 200 Wet cooling towers: rule-of-thumb design and simulation Leeper, S.A. (1981) 103 ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 76 Feed-pump hydraulic performance and design improvement, Phase I: research program design. Final report Brown, W.H.; Gopalakrishnan, S.; Fehlau, R.; Thompson, W.E.; Wilson, D.G. (1982) 69 Seventh Edition Fuel Cell Handbook NETL (2004) 65 Load flow analysis: Base cases, data, diagrams, and results Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; Peerenboom, J.P. (1997) 52 Controlled low strength materials (CLSM), reported by ACI Committee

223

Distributed Generation Study/Sea Rise 2 | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Study Distributed Generation Study Jump to: navigation, search Study Location Brooklyn, New York Site Description Residential-Multifamily-Single Building Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Coast Intelligen CI60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Grenadier Realty System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 120 kW0.12 MW 120,000 W 120,000,000 mW 1.2e-4 GW 1.2e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1300000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/08/30 Monitoring Termination Date 1969/12/31

224

Distributed Generation Study/Sea Rise 1 | Open Energy Information  

Open Energy Info (EERE)

Distributed Generation Study Distributed Generation Study Jump to: navigation, search Study Location Brooklyn, New York Site Description Residential-Multifamily-Single Building Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Coast Intelligen CI60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Grenadier Realty System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 120 kW0.12 MW 120,000 W 120,000,000 mW 1.2e-4 GW 1.2e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1300000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/08/30 Monitoring Termination Date 1969/12/31

225

Most Viewed Documents - Power Generation and Distribution | OSTI, US Dept  

Office of Scientific and Technical Information (OSTI)

Most Viewed Documents - Power Generation and Distribution Most Viewed Documents - Power Generation and Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; et al. (1994) ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) Systems and economic analysis of microalgae ponds for conversion of CO{sub 2} to biomass. Quarterly technical progress report, September 1993--December 1993 Benemann, J.R.; Oswald, W.J. (1994) Load flow analysis: Base cases, data, diagrams, and results Portante, E.C.; Kavicky, J.A.; VanKuiken, J.C.; et al. (1997) Multilevel converters -- A new breed of power converters Lai, J.S. [Oak Ridge National Lab., TN (United States). Engineering Technology Div.]; Peng, F.Z. [Univ. of Tennessee, Knoxville, TN (United

226

A Bio-Based Fuel Cell for Distributed Energy Generation  

DOE Green Energy (OSTI)

The technology we propose consists primarily of an improved design for increasing the energy density of a certain class of bio-fuel cell (BFC). The BFCs we consider are those which harvest electrons produced by microorganisms during their metabolism of organic substrates (e.g. glucose, acetate). We estimate that our technology will significantly enhance power production (per unit volume) of these BFCs, to the point where they could be employed as stand-alone systems for distributed energy generation.

Anthony Terrinoni; Sean Gifford

2008-06-30T23:59:59.000Z

227

Experimental Generation and Characterization of Uniformly Filled Ellipsoidal Electron Beam Distributions  

E-Print Network (OSTI)

Experimental Generation and Characterization of Uniformly Filled Ellipsoidal Electron Beam Distributions

Musumeci, P; Rosenzweig, J B; Scoby, C M

2008-01-01T23:59:59.000Z

228

Small Distributed Generation Applications in the Industrial Sector: A Screening Assessment  

Science Conference Proceedings (OSTI)

This report documents a screening assessment of small distributed generation applications in the industrial sector.

2001-12-04T23:59:59.000Z

229

Role of Distributed Generation in U.S. Energy Markets, The  

Reports and Publications (EIA)

Presentation on EIA's projections of energy markets with particular focus on distributed generation.

Information Center

2002-04-01T23:59:59.000Z

230

Optimal Solar PV Arrays Integration for Distributed Generation  

SciTech Connect

Solar photovoltaic (PV) systems hold great potential for distributed energy generation by installing PV panels on rooftops of residential and commercial buildings. Yet challenges arise along with the variability and non-dispatchability of the PV systems that affect the stability of the grid and the economics of the PV system. This paper investigates the integration of PV arrays for distributed generation applications by identifying a combination of buildings that will maximize solar energy output and minimize system variability. Particularly, we propose mean-variance optimization models to choose suitable rooftops for PV integration based on Markowitz mean-variance portfolio selection model. We further introduce quantity and cardinality constraints to result in a mixed integer quadratic programming problem. Case studies based on real data are presented. An efficient frontier is obtained for sample data that allows decision makers to choose a desired solar energy generation level with a comfortable variability tolerance level. Sensitivity analysis is conducted to show the tradeoffs between solar PV energy generation potential and variability.

Omitaomu, Olufemi A [ORNL; Li, Xueping [University of Tennessee, Knoxville (UTK)

2012-01-01T23:59:59.000Z

231

Property:Distributed Generation/Site Description | Open Energy Information  

Open Energy Info (EERE)

Generation/Site Description Generation/Site Description Jump to: navigation, search This is a property of type String. The allowed values for this property are: Agricultural Commercial-Hotel Commercial-Ice Arena Commercial-High Rise Office Commercial-Low Rise Office Commercial-Refrigerated Warehouse Commercial-Restaurant Commercial-Retail Store Commercial-Supermarket Commercial-Theater Commercial-Other Institutional-Hospital/Health Care Institutional-Nursing Home Institutional-School/University Institutional-Other Residential-Multifamily-Single Building Residential-Multifamily-Multibuilding Residential-Single Family Industrial-Food Processing Industrial-Plastics Processing Industrial-Wood Products Industrial-Other Testing Laboratory Water Utility Other Utility Other Pages using the property "Distributed Generation/Site Description"

232

A policy letter. DG-GRID Improving distribution network regulation for enhancing the share of sustainable distributed generation in Europe  

E-Print Network (OSTI)

A policy letter. DG-GRID Improving distribution network regulation for enhancing the share-generation of electricity and heat (CHP). This drives the growth of distributed generation (DG) ­ generators connected to the distribution network ­ to significant levels. The DG-GRID project1 carried out by nine European universities

233

The Value of Distributed Generation under Different TariffStructures  

Science Conference Proceedings (OSTI)

Distributed generation (DG) may play a key role in a modern energy system because it can improve energy efficiency. Reductions in the energy bill, and therefore DG attractiveness, depend on the electricity tariff structure; a system created before widespread adoption of distributed generation. Tariffs have been designed to recover costs equitably amongst customers with similar consumption patterns. Recently, electric utilities began to question the equity of this electricity pricing structure for standby service. In particular, the utilities do not feel that DG customers are paying their fair share of transmission and distribution costs - traditionally recovered through a volumetric($/kWh) mechanism - under existing tariff structures. In response, new tariff structures with higher fixed costs for DG have been implemented in New York and in California. This work analyzes the effects of different electricity tariff structures on DG adoption. First, the effects of the new standby tariffs in New York are analyzed in different regions. Next generalized tariffs are constructed, and the sensitivity to varying levels of the volumetric and the demand ($/kW, i.e. maximum rate) charge component are analyzed on New York's standard and standby tariff as well as California's standby tariff. As expected, DG profitability is reduced with standby tariffs, but often marginally. The new standby structures tend to promote smaller base load systems. The amount of time-of-day variability of volumetric pricing seems to have little effect on DG economics.

Firestone, Ryan; Magnus Maribu, Karl; Marnay, Chris

2006-05-31T23:59:59.000Z

234

Assessment of Distributed Generation Potential in JapaneseBuildings  

Science Conference Proceedings (OSTI)

To meet growing energy demands, energy efficiency, renewable energy, and on-site generation coupled with effective utilization of exhaust heat will all be required. Additional benefit can be achieved by integrating these distributed technologies into distributed energy resource (DER) systems (or microgrids). This research investigates a method of choosing economically optimal DER, expanding on prior studies at the Berkeley Lab using the DER design optimization program, the Distributed Energy Resources Customer Adoption Model (DER-CAM). DER-CAM finds the optimal combination of installed equipment from available DER technologies, given prevailing utility tariffs, site electrical and thermal loads, and a menu of available equipment. It provides a global optimization, albeit idealized, that shows how the site energy loads can be served at minimum cost by selection and operation of on-site generation, heat recovery, and cooling. Five prototype Japanese commercial buildings are examined and DER-CAM applied to select the economically optimal DER system for each. The five building types are office, hospital, hotel, retail, and sports facility. Based on the optimization results, energy and emission reductions are evaluated. Furthermore, a Japan-U.S. comparison study of policy, technology, and utility tariffs relevant to DER installation is presented. Significant decreases in fuel consumption, carbon emissions, and energy costs were seen in the DER-CAM results. Savings were most noticeable in the sports facility (a very favourable CHP site), followed by the hospital, hotel, and office building.

Zhou, Nan; Marnay, Chris; Firestone, Ryan; Gao, Weijun; Nishida,Masaru

2005-05-25T23:59:59.000Z

235

Distributed Generation Systems Inc DISGEN | Open Energy Information  

Open Energy Info (EERE)

DISGEN DISGEN Jump to: navigation, search Name Distributed Generation Systems Inc (DISGEN) Place Lakewood, Colorado Zip 80228 Sector Wind energy Product Developer of Green Mountain (10.4 MW) and Ponnequin (16 MW) wind generation projects in the US. Manages everything from site selection through construction. Coordinates 45.300538°, -88.522572° 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":45.300538,"lon":-88.522572,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

236

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

DOE Green Energy (OSTI)

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the January to June 2004 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a micro-turbine. In addition, an activity included in this program focuses on the development of an integrated coal gasification fuel cell system concept based on planar SOFC technology. Also, another activity included in this program focuses on the development of SOFC scale up strategies.

Nguyen Minh

2004-07-04T23:59:59.000Z

237

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

SciTech Connect

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the July 2003 to December 2003 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a micro-turbine. In addition, an activity included in this program focuses on the development of an integrated coal gasification fuel cell system concept based on planar SOFC technology. Also, another activity included in this program focuses on the development of SOFC scale up strategies.

Faress Rahman; Nguyen Minh

2004-01-04T23:59:59.000Z

238

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

SciTech Connect

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the January to June 2004 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a micro-turbine. In addition, an activity included in this program focuses on the development of an integrated coal gasification fuel cell system concept based on planar SOFC technology. Also, another activity included in this program focuses on the development of SOFC scale up strategies.

Nguyen Minh

2004-07-04T23:59:59.000Z

239

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

DOE Green Energy (OSTI)

This report summarizes the work performed by Hybrid Power Generation Systems, LLC during the October 2002 to December 2002 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a turbogenerator. The following activities have been carried out during this reporting period: {lg_bullet} Conceptual system design trade studies were performed {lg_bullet} Part-load performance analysis was conducted {lg_bullet} Primary system concept was down-selected {lg_bullet} Dynamic control model has been developed {lg_bullet} Preliminary heat exchanger designs were prepared {lg_bullet} Pressurized SOFC endurance testing was performed

Nguyen Minh; Faress Rahman

2002-12-31T23:59:59.000Z

240

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

DOE Green Energy (OSTI)

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the July 2003 to December 2003 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a micro-turbine. In addition, an activity included in this program focuses on the development of an integrated coal gasification fuel cell system concept based on planar SOFC technology. Also, another activity included in this program focuses on the development of SOFC scale up strategies.

Faress Rahman; Nguyen Minh

2004-01-04T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

Impact of Air Quality Regulations on Distributed Generation  

Science Conference Proceedings (OSTI)

Relatively small projects for generating electrical power at or near the point of use--distributed generation (DG)--offer unique opportunities for enhancing the U.S. electric system. This report finds that current air quality regulatory practices are inappropriately inhibiting the development of DG through a failure to recognize the environmental benefits offered by DG or by imposing requirements designed for larger systems that are not appropriate to DG systems. The report recommends that air quality regulation be made more efficient and appropriate for DG by establishing national standards for DG equipment. This report also recommends that DG projects be evaluated on a''net'' emissions basis by being given credit for any emission sources that they displace. Air quality regulation should also recognize the benefits of combined heat and power (CHP).

Bluestein, J.; Horgan, S.; Eldridge, M. M.

2002-10-01T23:59:59.000Z

242

Emissions Benefits of Distributed Generation in the Texas Market  

Science Conference Proceedings (OSTI)

One potential benefit of distributed generation (DG) is a net reduction in air emissions. While DG will produce emissions, most notably carbon dioxide and nitrogen oxides, the power it displaces might have produced more. This study used a system dispatch model developed at Oak Ridge National Laboratory to simulate the 2012 Texas power market with and without DG. This study compares the reduction in system emissions to the emissions from the DG to determine the net savings. Some of the major findings are that 85% of the electricity displaced by DG during peak hours will be simple cycle natural gas, either steam or combustion turbine. Even with DG running as baseload, 57% of electricity displaced will be simple cycle natural gas. Despite the retirement of some gas-fired steam units and the construction of many new gas turbine and combined cycle units, the marginal emissions from the system remain quite high (1.4 lb NO{sub x}/MWh on peak and 1.1 lb NO{sub x}/MWh baseload) compared to projected DG emissions. Consequently, additions of DG capacity will reduce emissions in Texas from power generation in 2012. Using the DG exhaust heat for combined heat and power provides an even greater benefit, since it eliminates further boiler emissions while adding none over what would be produced while generating electricity. Further studies are warranted concerning the robustness of the result with changes in fuel prices, demands, and mixes of power generating technology.

Hadley, SW

2005-06-16T23:59:59.000Z

243

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

SciTech Connect

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the April to October 2004 reporting period in Task 2.3 (SOFC Scaleup for Hybrid and Fuel Cell Systems) under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL), entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. This study analyzes the performance and economics of power generation systems for central power generation application based on Solid Oxide Fuel Cell (SOFC) technology and fueled by natural gas. The main objective of this task is to develop credible scale up strategies for large solid oxide fuel cell-gas turbine systems. System concepts that integrate a SOFC with a gas turbine were developed and analyzed for plant sizes in excess of 20 MW. A 25 MW plant configuration was selected with projected system efficiency of over 65% and a factory cost of under $400/kW. The plant design is modular and can be scaled to both higher and lower plant power ratings. Technology gaps and required engineering development efforts were identified and evaluated.

David Deangelis; Rich Depuy; Debashis Dey; Georgia Karvountzi; Nguyen Minh; Max Peter; Faress Rahman; Pavel Sokolov; Deliang Yang

2004-09-30T23:59:59.000Z

244

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

DOE Green Energy (OSTI)

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the April to October 2004 reporting period in Task 2.3 (SOFC Scaleup for Hybrid and Fuel Cell Systems) under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL), entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. This study analyzes the performance and economics of power generation systems for central power generation application based on Solid Oxide Fuel Cell (SOFC) technology and fueled by natural gas. The main objective of this task is to develop credible scale up strategies for large solid oxide fuel cell-gas turbine systems. System concepts that integrate a SOFC with a gas turbine were developed and analyzed for plant sizes in excess of 20 MW. A 25 MW plant configuration was selected with projected system efficiency of over 65% and a factory cost of under $400/kW. The plant design is modular and can be scaled to both higher and lower plant power ratings. Technology gaps and required engineering development efforts were identified and evaluated.

David Deangelis; Rich Depuy; Debashis Dey; Georgia Karvountzi; Nguyen Minh; Max Peter; Faress Rahman; Pavel Sokolov; Deliang Yang

2004-09-30T23:59:59.000Z

245

GA based energy loss minimization approach for optimal sizing & placement of distributed generation  

Science Conference Proceedings (OSTI)

Distributed Generators (DG) provide the lowest cost solution to handle low voltage or overload problems. In conjunction with such problems, a technique of energy saving is introduced by placement of distributed generation (DG) in distribution systems. ... Keywords: Distributed generation (DG), energy saving, genetic algorithms (GA), optimal sizing and placement

Deependra Singh; Devender Singh; K. S. Verma

2008-04-01T23:59:59.000Z

246

Study on the operation of a low-voltage AC microgrid with multiple distributed generations  

Science Conference Proceedings (OSTI)

This paper aims to study the operation of a grid-connected low-voltage AC microgrid with multiple distributed generations (DGs). First of all, a 400 V low-voltage AC microgrid integrated with a 30 kW microturbine generator, a 13 kW photovoltaic generation ... Keywords: distributed generators, distribution systems, microgrids, steady-state analysis, three-phase power flow

Wei-Tzer Huang

2010-12-01T23:59:59.000Z

247

Time series power flow analysis for distribution connected PV generation.  

SciTech Connect

Distributed photovoltaic (PV) projects must go through an interconnection study process before connecting to the distribution grid. These studies are intended to identify the likely impacts and mitigation alternatives. In the majority of the cases, system impacts can be ruled out or mitigation can be identified without an involved study, through a screening process or a simple supplemental review study. For some proposed projects, expensive and time-consuming interconnection studies are required. The challenges to performing the studies are twofold. First, every study scenario is potentially unique, as the studies are often highly specific to the amount of PV generation capacity that varies greatly from feeder to feeder and is often unevenly distributed along the same feeder. This can cause location-specific impacts and mitigations. The second challenge is the inherent variability in PV power output which can interact with feeder operation in complex ways, by affecting the operation of voltage regulation and protection devices. The typical simulation tools and methods in use today for distribution system planning are often not adequate to accurately assess these potential impacts. This report demonstrates how quasi-static time series (QSTS) simulation and high time-resolution data can be used to assess the potential impacts in a more comprehensive manner. The QSTS simulations are applied to a set of sample feeders with high PV deployment to illustrate the usefulness of the approach. The report describes methods that can help determine how PV affects distribution system operations. The simulation results are focused on enhancing the understanding of the underlying technical issues. The examples also highlight the steps needed to perform QSTS simulation and describe the data needed to drive the simulations. The goal of this report is to make the methodology of time series power flow analysis readily accessible to utilities and others responsible for evaluating potential PV impacts.

Broderick, Robert Joseph; Quiroz, Jimmy Edward; Ellis, Abraham; Reno, Matthew J. [Georgia Institute of Technology, Atlanta, GA; Smith, Jeff [Electric Power Research Institute, Knoxville, TN; Dugan, Roger [Electric Power Research Institute, Knoxville, TN

2013-01-01T23:59:59.000Z

248

U.S. Distributed Generation Fuel Cell Program  

SciTech Connect

The Department of Energy (DOE) is the largest funder of fuel cell technology in the U.S. The DOE Office of Fossil Energy (FE) is developing high temperature fuel cells for distributed generation. It has funded the development of tubular solid oxide fuel cell (SOFC) and molten carbonate fuel cell (MCFC) power systems operating at up to 60% efficiency on natural gas. The remarkable environmental performance of these fuel cells makes them likely candidates to help mitigate pollution. DOE is now pursuing more widely applicable solid oxide fuel cells for 2010 and beyond. DOE estimates that a 5 kW solid oxide fuel cell system can reach $400/kW at reasonable manufacturing volumes. SECA - the Solid State Energy Conversion Alliance - was formed by the National Energy Technology Laboratory (NETL) and the Pacific Northwest National Laboratory (PNNL) to accelerate the commercial readiness of planar and other solid oxide fuel cell systems utilizing 3-10 kW size modules by taking advantage of the projected economies of production from a mass customization approach. In addition, if the modular 3-10 kW size units can be ganged or scaled up to larger sizes with no increase in cost, then commercial, microgrid and other distributed generation markets will become attainable. Further scale-up and hybridization of SECA SOFCs with gas turbines could result in penetration of the bulk power market. This paper reviews the current status of the solid oxide and molten carbonate fuel cells in the U.S.

Williams, Mark C.; Strakey, Joseph P.; Singhal, Subhash C.

2004-05-14T23:59:59.000Z

249

Facility Representatives  

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

063-2011 063-2011 February 2011 Superseding DOE-STD-1063-2006 April 2006 DOE STANDARD FACILITY REPRESENTATIVES U.S. Department of Energy AREA MGMT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. NOT MEASUREMENT SENSITIVE DOE-STD-1063-2011 ii Available on the Department of Energy Technical Standards Program Web site at http://www.hss.doe.gov/nuclearsafety/ns/techstds/ DOE-STD-1063-2011 iii FOREWORD 1. This Department of Energy (DOE) standard is approved for use by all DOE/National Nuclear Security Administration (NNSA) Components. 2. The revision to this DOE standard was developed by a working group consisting of headquarters and field participants. Beneficial comments (recommendations,

250

Facility Representatives  

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

DOE-STD-1063-2006 April 2006 Superseding DOE-STD-1063-2000 March 2000 DOE STANDARD FACILITY REPRESENTATIVES U.S. Department of Energy AREA MGMT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. NOT MEASUREMENT SENSITIVE DOE-STD-1063-2006 ii Available on the Department of Energy Technical Standards Program web site at http://www.eh.doe.gov/techstds/ DOE-STD-1063-2006 iii FOREWORD 1. This Department of Energy standard is approved for use by all DOE Components. 2. The revision to this DOE standard was developed by a working group consisting of headquarters and field participants. Beneficial comments (recommendations, additions, deletions) and any pertinent data that may improve this document should

251

The Value of Distributed Generation under Different Tariff Structures  

E-Print Network (OSTI)

Firestone, R. 2004. Distributed Energy Resources CustomerFramework and Tools for Distributed Energy Resources. LBNL-Energy Reliability, Distributed Energy Program of the U.S.

Firestone, Ryan; Magnus Maribu, Karl; Marnay, Chris

2006-01-01T23:59:59.000Z

252

Assessment of Distributed Generation Potential in Japanese Buildings  

E-Print Network (OSTI)

RMFirestone@lbl.gov Keywords distributed energy resources,technologies into distributed energy resource (DER) sys-zation program, the Distributed Energy Resources Custom- er

Zhou, Nan; Marnay, Chris; Firestone, Ryan; Gao, Weijun; Nishida, Masaru

2005-01-01T23:59:59.000Z

253

Greenhouse Gas Abatement with Distributed Generation in California's Commercial Buildings  

E-Print Network (OSTI)

J.L. Edwards, (2003), Distributed Energy Resources CustomerGas-Fired Distributed Energy Resource Characterizations,Energy Reliability, Distributed Energy Program of the U.S.

Stadler, Michael

2010-01-01T23:59:59.000Z

254

Distributed Generation Potential of the U.S. Commercial Sector  

E-Print Network (OSTI)

2004. European Distributed Energy Projects, EUR 21239,Energy Sources and Distributed Energy Resources. Brussels,International Journal of Distributed Energy Resources, 1 (

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Gumerman, Etan; Marnay, Chris

2005-01-01T23:59:59.000Z

255

Distributed generation capabilities of the national energy modeling system  

E-Print Network (OSTI)

and Renewable Energy, Distributed Energy and ElectricPrepared for the Distributed Energy and Electric Reliabilityand Renewable Energy, Distributed Energy and Electric

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Marnay, Chris

2003-01-01T23:59:59.000Z

256

The Effect of Distributed Energy Resource Competition with Central Generation  

Science Conference Proceedings (OSTI)

Distributed Energy Resource (DER) has been touted as a clean and efficient way to generate electricity at end-use sites, potentially allowing the exhaust heat to be put to good use as well. However, despite its environmental acceptability compared to many other types of generation, it has faced some disapproval because it may displace other, cleaner generation technologies. The end result could be more pollution than if the DER were not deployed. On the other hand, the DER may be competing against older power plants. If the DER is built then these other plants may be retired sooner, reducing their emissions. Or it may be that DER does not directly compete against either new or old plant capacity at the decision-maker level, and increased DER simply reduces the amount of time various plants operate. The key factor is what gets displaced if DER is added. For every kWh made by DER a kWh (or more with losses) of other production is not made. If enough DER is created, some power plants will get retired or not get built so not only their production but their capacity is displaced. Various characteristics of the power system in a region will influence how DER impacts the operation of the grid. The growth in demand in the region may influence whether new plants are postponed or old plants retired. The generation mix, including the fuel types, efficiencies, and emission characteristics of the plants in the region will factor into the overall competition. And public policies such as ease of new construction, emissions regulations, and fuel availability will also come into consideration.

Hadley, SW

2003-12-10T23:59:59.000Z

257

Distributed Generation Study/Dakota Station (Minnegasco) | Open Energy  

Open Energy Info (EERE)

Station (Minnegasco) Station (Minnegasco) < Distributed Generation Study Jump to: navigation, search Study Location Burnsville, Minnesota Site Description Other Utility Study Type Case Study Technology Microturbine Prime Mover Capstone C30 Heat Recovery Systems Unifin Fuel Natural Gas System Installer Capstone Turbine Corp System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 30 kW0.03 MW 30,000 W 30,000,000 mW 3.0e-5 GW 3.0e-8 TW Nominal Voltage (V) 0 Heat Recovery Rating (BTU/hr) 290000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Customer Assembled Start Date 2000/03/13 Monitoring Termination Date 2002/03/31 Primary Power Application Based Load

258

Distributed Generation Study/Emerling Farm | Open Energy Information  

Open Energy Info (EERE)

Emerling Farm Emerling Farm < Distributed Generation Study Jump to: navigation, search Study Location Perry, New York Site Description Agricultural Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Caterpillar G379 Heat Recovery Systems Built-in Fuel Biogas System Installer RCM Digesters System Enclosure Dedicated Shelter System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability Seamless Power Rating 200 kW0.2 MW 200,000 W 200,000,000 mW 2.0e-4 GW 2.0e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 2000000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/06/07 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

259

Distributed Generation Study/Hudson Valley Community College | Open Energy  

Open Energy Info (EERE)

Valley Community College Valley Community College < Distributed Generation Study Jump to: navigation, search Study Location Troy, New York Site Description Institutional-School/University Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Caterpillar G3516, Caterpillar DM5498, Caterpillar DM7915 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Siemens Building Technologies System Enclosure Dedicated Shelter System Application Combined Heat and Power Number of Prime Movers 6 Stand-alone Capability Seamless Power Rating 7845 kW7.845 MW 7,845,000 W 7,845,000,000 mW 0.00785 GW 7.845e-6 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 32500000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Custom Made Component Integration Factory Integrated

260

Distributed Generation Study/Floyd Bennett | Open Energy Information  

Open Energy Info (EERE)

Bennett Bennett < Distributed Generation Study Jump to: navigation, search Study Location Brooklyn, New York Site Description Other Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Montreal Construction System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability Seamless Power Rating 120 kW0.12 MW 120,000 W 120,000,000 mW 1.2e-4 GW 1.2e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 230000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2005/07/21 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

Note: This page contains sample records for the topic "distributed generation represents" 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

Distributed Generation Study/Arrow Linen | Open Energy Information  

Open Energy Info (EERE)

Study/Arrow Linen Study/Arrow Linen < Distributed Generation Study Jump to: navigation, search Study Location Brooklyn, New York Site Description Commercial-Other Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Coast Intelligen 150-IC with ECS Heat Recovery Systems Built-in Fuel Natural Gas System Installer Energy Concepts System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 300 kW0.3 MW 300,000 W 300,000,000 mW 3.0e-4 GW 3.0e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 3000000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2005/03/01 Monitoring Termination Date 1969/12/31

262

Distributed Generation Study/Elgin Community College | Open Energy  

Open Energy Info (EERE)

Elgin Community College Elgin Community College < Distributed Generation Study Jump to: navigation, search Study Location Elgin, Illinois Site Description Institutional-School/University Study Type Case Study Technology Internal Combustion Engine Prime Mover Waukesha VHP5108GL Heat Recovery Systems Beaird Maxim Model TRP-12 Fuel Natural Gas System Installer Morse Electric Company System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 4 Stand-alone Capability Manual Power Rating 3220 kW3.22 MW 3,220,000 W 3,220,000,000 mW 0.00322 GW 3.22e-6 TW Nominal Voltage (V) 4160 Heat Recovery Rating (BTU/hr) 11200000 Cooling Capacity (Refrig/Tons) 550 Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 1997/05/01

263

Distributed Generation Study/Wyoming County Community Hospital | Open  

Open Energy Info (EERE)

Wyoming County Community Hospital Wyoming County Community Hospital < Distributed Generation Study Jump to: navigation, search Study Location Warsaw, New York Site Description Institutional-Hospital/Health Care Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Waukesha VGF L36GSID Heat Recovery Systems Built-in Fuel Natural Gas System Installer Gerster Trane System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability Seamless Power Rating 560 kW0.56 MW 560,000 W 560,000,000 mW 5.6e-4 GW 5.6e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1000000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2001/09/26

264

Distributed Generation Study/Patterson Farms CHP System Using Renewable  

Open Energy Info (EERE)

Farms CHP System Using Renewable Farms CHP System Using Renewable Biogas < Distributed Generation Study Jump to: navigation, search Study Location Auburn, New York Site Description Agricultural Study Type Field Test Technology Internal Combustion Engine Prime Mover Caterpillar G379 Heat Recovery Systems Built-in Fuel Biogas System Installer Martin Machinery System Enclosure Dedicated Shelter System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 200 kW0.2 MW 200,000 W 200,000,000 mW 2.0e-4 GW 2.0e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1366072 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Custom Made Component Integration Customer Assembled Start Date 2007/05/02 Monitoring Termination Date 2007/05/26

265

Distributed Generation Study/Tudor Gardens | Open Energy Information  

Open Energy Info (EERE)

Tudor Gardens Tudor Gardens < Distributed Generation Study Jump to: navigation, search Study Location New York, New York Site Description Residential-Multifamily-Single Building Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Tecogen CM-75 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Aegis Energy System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability None Power Rating 150 kW0.15 MW 150,000 W 150,000,000 mW 1.5e-4 GW 1.5e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 980000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2005/07/01 Monitoring Termination Date 1969/12/31

266

Distributed Generation Study/Patterson Farms | Open Energy Information  

Open Energy Info (EERE)

Farms Farms < Distributed Generation Study Jump to: navigation, search Study Location Auburn, New York Site Description Agricultural Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Caterpillar G3508 Heat Recovery Systems Built-in Fuel Biogas System Installer RCM Digesters System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability Seamless Power Rating 180 kW0.18 MW 180,000 W 180,000,000 mW 1.8e-4 GW 1.8e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 2000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/03/10 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

267

Distributed Generation Study/Oakwood Health Care Center | Open Energy  

Open Energy Info (EERE)

Oakwood Health Care Center Oakwood Health Care Center < Distributed Generation Study Jump to: navigation, search Study Location Williamsville, New York Site Description Institutional-Hospital/Health Care Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Waukesha VGF 18GLD Heat Recovery Systems Built-in Fuel Natural Gas System Installer Gerster Trane System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 2 Stand-alone Capability Seamless Power Rating 600 kW0.6 MW 600,000 W 600,000,000 mW 6.0e-4 GW 6.0e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 2800000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2001/12/20 Monitoring Termination Date 2003/01/03

268

Distributed Generation Study/Matlink Farm | Open Energy Information  

Open Energy Info (EERE)

Matlink Farm Matlink Farm < Distributed Generation Study Jump to: navigation, search Study Location Clymers, New York Site Description Agricultural Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Waukesha 145 Heat Recovery Systems Built-in Fuel Biogas System Installer Martin Machine System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 145 kW0.145 MW 145,000 W 145,000,000 mW 1.45e-4 GW 1.45e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 1500000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2004/10/28 Monitoring Termination Date 2005/07/16 Primary Power Application Based Load

269

Distributed Generation Study/Modern Landfill | Open Energy Information  

Open Energy Info (EERE)

Landfill Landfill < Distributed Generation Study Jump to: navigation, search Study Location Model City, New York Site Description Other Utility Study Type Long-term Monitoring Technology Internal Combustion Engine Prime Mover Caterpillar G3516 Heat Recovery Systems Built-in Fuel Biogas System Installer Innovative Energy Systems System Enclosure Dedicated Shelter System Application Combined Heat and Power Number of Prime Movers 7 Stand-alone Capability Seamless Power Rating 5600 kW5.6 MW 5,600,000 W 5,600,000,000 mW 0.0056 GW 5.6e-6 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 28000000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2004/12/31 Monitoring Termination Date 1969/12/31

270

Distributed Generation Study/VIP Country Club | Open Energy Information  

Open Energy Info (EERE)

VIP Country Club VIP Country Club < Distributed Generation Study Jump to: navigation, search Study Location New Rochelle, New York Site Description Commercial-Other Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Advanced Power Systems System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 3 Stand-alone Capability Seamless Power Rating 180 kW0.18 MW 180,000 W 180,000,000 mW 1.8e-4 GW 1.8e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 750000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2006/01/24 Monitoring Termination Date 1969/12/31 Primary Power Application Based Load

271

Distributed Generation Study/Waldbaums Supermarket | Open Energy  

Open Energy Info (EERE)

Waldbaums Supermarket Waldbaums Supermarket < Distributed Generation Study Jump to: navigation, search Study Location Hauppauge, New York Site Description Commercial-Supermarket Study Type Long-term Monitoring Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Unifin HX Fuel Natural Gas System Installer CDH Energy Corp. System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 60 kW0.06 MW 60,000 W 60,000,000 mW 6.0e-5 GW 6.0e-8 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 500000 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Factory Integrated Start Date 2002/08/02 Monitoring Termination Date 2006/07/21 Primary Power Application Based Load

272

Advanced Distributed Generation LLC ADG | Open Energy Information  

Open Energy Info (EERE)

LLC ADG LLC ADG Jump to: navigation, search Name Advanced Distributed Generation LLC (ADG) Place Toledo, Ohio Zip OH 43607 Product ADG is a general contracting company specializing in the design and installation of photovoltaic (PV) systems. Coordinates 46.440613°, -122.847838° 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":46.440613,"lon":-122.847838,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

273

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

DOE Green Energy (OSTI)

This report summarizes the work performed by Honeywell during the January 2002 to March 2002 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a turbogenerator. For this reporting period the following activities have been carried out: {lg_bullet} Conceptual system design trade studies were performed {lg_bullet} System-level performance model was created {lg_bullet} Dynamic control models are being developed {lg_bullet} Mechanical properties of candidate heat exchanger materials were investigated {lg_bullet} SOFC performance mapping as a function of flow rate and pressure was completed

Nguyen Minh

2002-03-31T23:59:59.000Z

274

SOLID OXIDE FUEL CELL HYBRID SYSTEM FOR DISTRIBUTED POWER GENERATION  

DOE Green Energy (OSTI)

This report summarizes the work performed by Honeywell during the October 2001 to December 2001 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a turbogenerator. The conceptual and demonstration system designs were proposed and analyzed, and these systems have been modeled in Aspen Plus. Work has also started on the assembly of dynamic component models and the development of the top-level controls requirements for the system. SOFC stacks have been fabricated and performance mapping initiated.

Kurt Montgomery; Nguyen Minh

2003-08-01T23:59:59.000Z

275

SOLID OXIDE FUEL CELL HYBRID SYSTEM FOR DISTRIBUTED POWER GENERATION  

DOE Green Energy (OSTI)

This report summarizes the work performed by Honeywell during the July 2001 to September 2001 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a turbogenerator. An internal program kickoff was held at Honeywell in Torrance, CA. The program structure was outlined and the overall technical approach for the program was presented to the team members. Detail program schedules were developed and detailed objectives were defined. Initial work has begun on the system design and pressurized SOFC operation.

Unknown

2002-03-01T23:59:59.000Z

276

Reliability Improvement Programs in Steam Distribution and Power Generation Systems  

E-Print Network (OSTI)

This paper will present alternatives to costly corrective maintenance of the steam trap and condensate return system, and the paybacks associated with instituting a program of planned maintenance management of that system. Energy costs can be reduced by 10% and maintenance costs by 20%, while achieving other tangible improvements in the reliability and efficiency of the system. Recent studies have shown that more than 40% of all installed steam traps and 20% of certain types of valves need some form of corrective action. The majority of all high backpressure problems in condensate return systems are due to poor design criteria. in expandlng or retrofitting existing return systems. By instituting a maintenance management program, a 95% reliability can be gained within two to four annual maintenance cycles. The associated operational problems can be greatly reduced. The maintenance management concept involves: 1) centralized project management; 2) diagnostic and inspection expertise; 3) system troubleshooting; 4) data analysis, reporting and recommendations; 5) maintenance repairs and follow-up; and 6) software and data base management. Several case studies, in which the concept has been successfully applied, will be presented. Energy costs, which have been on the rise for the past ten years, have now leveled off due to global supply and demand issues. But that is not true of the costs to maintain capital equipment such as steam distribution and power generation systems. Those costs continue to rise. If the basic principles of maintenance management are applied, when upgrading poorly maintained steam systems, those upgraded systems can be a fast payback of savings in energy, manpower and inventory. Three major areas where the savings can be gained are the steam traps, valve and condensate return systems. Such systems can be found in power generation, steam distribution, and in all types of durable and non-durable industrial productions.

Petto, S.

1987-09-01T23:59:59.000Z

277

Field Verification of Distributed Renewable Generation, Volume 1: Renewable Energy Field Test Concepts  

Science Conference Proceedings (OSTI)

This report describes field verification of distributed renewable generation and focuses on renewable energy field test concepts.

2003-03-25T23:59:59.000Z

278

Investment and Upgrade in Distributed Generation under Uncertainty  

Science Conference Proceedings (OSTI)

The ongoing deregulation of electricity industries worldwide is providing incentives for microgrids to use small-scale distributed generation (DG) and combined heat and power (CHP) applications via heat exchangers (HXs) to meet local energy loads. Although the electric-only efficiency of DG is lower than that of central-station production, relatively high tariff rates and the potential for CHP applications increase the attraction of on-site generation. Nevertheless, a microgrid contemplatingthe installation of gas-fired DG has to be aware of the uncertainty in the natural gas price. Treatment of uncertainty via real options increases the value of the investment opportunity, which then delays the adoption decision as the opportunity cost of exercising the investment option increases as well. In this paper, we take the perspective of a microgrid that can proceed in a sequential manner with DG capacity and HX investment in order to reduce its exposure to risk from natural gas price volatility. In particular, with the availability of the HX, the microgrid faces a tradeoff between reducing its exposure to the natural gas price and maximising its cost savings. By varying the volatility parameter, we find that the microgrid prefers a direct investment strategy for low levels of volatility and a sequential one for higher levels of volatility.

Siddiqui, Afzal; Maribu, Karl

2008-08-18T23:59:59.000Z

279

Investment and Upgrade in Distributed Generation under Uncertainty ?  

E-Print Network (OSTI)

The ongoing deregulation of electricity industries worldwide is providing incentives for microgrids to use small-scale distributed generation (DG) and combined heat and power (CHP) applications via heat exchangers (HXs) to meet local energy loads. Although the electric-only efficiency of DG is lower than that of central-station production, relatively high tariff rates and the potential for CHP applications increase the attraction of on-site generation. Nevertheless, a microgrid contemplating the installation of gas-fired DG has to be aware of the uncertainty in the natural gas price. Treatment of uncertainty via real options increases the value of the investment opportunity, which then delays the adoption decision as the opportunity cost of exercising the investment option increases as well. In this paper, we take the perspective of a microgrid that can proceed in a sequential manner with DG capacity and HX investment in order to reduce its exposure to risk from natural gas price volatility. In particular, with the availability of the HX, we find that the microgrid faces a tradeoff between reducing its exposure to the natural gas price and maximising its cost savings. By varying the volatility parameter, we find ranges over which direct and sequential investment strategies dominate. Keywords:

Afzal Siddiqui; Karl Maribu

2007-01-01T23:59:59.000Z

280

SOLID OXIDE FUEL CELL HYBRID SYSTEM FOR DISTRIBUTED POWER GENERATION  

DOE Green Energy (OSTI)

This report summarizes the work performed by Hybrid Power Generation Systems, LLC during the January 2003 to June 2003 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a micro-turbine. In addition, an activity included in this program focuses on the development of an integrated coal gasification fuel cell system concept based on planar SOFC technology. This report summarizes the results obtained to date on: System performance analysis and model optimization; Reliability and cost model development; System control including dynamic model development; Heat exchanger material tests and life analysis; Pressurized SOFC evaluation; and Pre-baseline system definition for coal gasification fuel cell system concept.

Faress Rahman; Nguyen Minh

2003-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

A Model of U.S. Commercial Distributed Generation Adoption  

Science Conference Proceedings (OSTI)

Small-scale (100 kW-5 MW) on-site distributed generation (DG) economically driven by combined heat and power (CHP) applications and, in some cases, reliability concerns will likely emerge as a common feature of commercial building energy systems over the next two decades. Forecasts of DG adoption published by the Energy Information Administration (EIA) in the Annual Energy Outlook (AEO) are made using the National Energy Modeling System (NEMS), which has a forecasting module that predicts the penetration of several possible commercial building DG technologies over the period 2005-2025. NEMS is also used for estimating the future benefits of Department of Energy research and development used in support of budget requests and management decisionmaking. The NEMS approach to modeling DG has some limitations, including constraints on the amount of DG allowed for retrofits to existing buildings and a small number of possible sizes for each DG technology. An alternative approach called Commercial Sector Model (ComSeM) is developed to improve the way in which DG adoption is modeled. The approach incorporates load shapes for specific end uses in specific building types in specific regions, e.g., cooling in hospitals in Atlanta or space heating in Chicago offices. The Distributed Energy Resources Customer Adoption Model (DER-CAM) uses these load profiles together with input cost and performance DG technology assumptions to model the potential DG adoption for four selected cities and two sizes of five building types in selected forecast years to 2022. The Distributed Energy Resources Market Diffusion Model (DER-MaDiM) is then used to then tailor the DER-CAM results to adoption projections for the entire U.S. commercial sector for all forecast years from 2007-2025. This process is conducted such that the structure of results are consistent with the structure of NEMS, and can be re-injected into NEMS that can then be used to integrate adoption results into a full forecast.

LaCommare, Kristina Hamachi; Ryan Firestone; Zhou, Nan; Maribu,Karl; Marnay, Chris

2006-01-10T23:59:59.000Z

282

Intelligent robust control of hybrid distributed generation system under voltage sag  

Science Conference Proceedings (OSTI)

In this paper, design of control strategy for hybrid fuel cell/energy storage distributed power generation system during voltage sag has been presented. The proposed control strategy allows hybrid distributed generation system works properly when a voltage ... Keywords: Energy storage, Fuel cell, Fuzzy sliding control, Hybrid distributed generation, Lyapanov, Neuro-fuzzy, Voltage sag

Amin Hajizadeh; Masoud Aliakbar Golkar

2010-12-01T23:59:59.000Z

283

Siting and sizing of distributed generation units using GA and OPF  

Science Conference Proceedings (OSTI)

This paper deals with the important task of finding the optimal siting and sizing of Distributed Generation (DG) units for a given distribution network so that the cost of active and reactive power generation can be minimized. The optimization technique ... Keywords: distributed generation, genetic alghorithm(GA), optimal power flow(OPF)

M. Hosseini Aliabadi; M. Mardaneh; B. Behbahan

2008-01-01T23:59:59.000Z

284

Distributed Generation Investment by a Microgrid under Uncertainty  

E-Print Network (OSTI)

Price to Marginal Cost of Natural Gas Generation, p FigurePrice to Marginal Cost of Natural Gas Generation, p FigureP e Marginal Cost of Natural Gas Generation (US$/kWh e ), C

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

285

Investment and Upgrade in Distributed Generation under Uncertainty  

E-Print Network (OSTI)

generation investment by a microgrid under uncertainty.M. E?ects of carbon tax on microgrid combined heat and powersite generation. Nevertheless, a microgrid contemplating the

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

286

Is The Distributed Generation Revolution Coming: A Federal Perspective  

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

ways (or some combination of them): Reduce demand in the load center Build more generation close to the load center Build more transmission to enable distant generation to...

287

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

operating strategy of the microgrid is not known in advance,Generation Investment by a Microgrid Under Uncertainty AfzalGeneration Investment by a Microgrid Under Uncertainty Afzal

Siddiqui, Afzal; Marnay, Chris

2006-01-01T23:59:59.000Z

288

Distributed Generation Investment by a Microgrid under Uncertainty  

E-Print Network (OSTI)

Effects of carbon tax on microgrid combined heat and powerGeneration Investment by a Microgrid under Uncertainty AfzalGeneration Investment by a Microgrid under Uncertainty Afzal

Siddiqui, Afzal

2008-01-01T23:59:59.000Z

289

Distributed Generation Investment by a Microgrid Under Uncertainty  

E-Print Network (OSTI)

to a put option on natural gas generation, which increasesgeneration (DG) unit that operates on natural gas.While the long-term natural gas generation cost is

Siddiqui, Afzal; Marnay, Chris

2006-01-01T23:59:59.000Z

290

The potential for distributed generation in Japanese prototype buildings: A DER-CAM analysis of policy, tariff design, building energy use, and technology development (English Version)  

E-Print Network (OSTI)

of investment New Power Generation/Distribution EnterprisesDG Distributed Generation Disco distribution company DOEof fuel) Electricity generation, transmission, distribution

Zhou, Nan; Marnay, Chris; Firestone, Ryan; Gao, Weijun; Nishida, Masaru

2004-01-01T23:59:59.000Z

291

GRR/Section 8-TX-c - Distributed Generation Interconnection | Open Energy  

Open Energy Info (EERE)

GRR/Section 8-TX-c - Distributed Generation Interconnection GRR/Section 8-TX-c - Distributed Generation Interconnection < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 8-TX-c - Distributed Generation Interconnection 8-TX-c - Distributed Generation Interconnection.pdf Click to View Fullscreen Contact Agencies Public Utility Commission of Texas Regulations & Policies PUCT Substantive Rule 25.211 PUCT Substantive Rule 25.212 Triggers None specified Click "Edit With Form" above to add content 8-TX-c - Distributed Generation Interconnection.pdf 8-TX-c - Distributed Generation Interconnection.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative This flowchart illustrates the process for distributed generation (DG)

292

Small Gas Turbines for Distributed Generation Markets: Technology, Products, and Business Issues  

Science Conference Proceedings (OSTI)

Small gas turbines (300 kW to 5 MW) offer an attractive way for utilities and energy service companies to generate electric power within distribution grids and for consumers to generate their own power. Distributed generation also benefits utilities by deferring or avoiding costly expansion of the power transmission and distribution system, which could allow them to offer customers lower cost power. Gas turbines process more power-generation cycle air per unit size and weight of machine than do reciproca...

2000-12-06T23:59:59.000Z

293

Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation  

DOE Green Energy (OSTI)

This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) under Cooperative Agreement DE-FC2601NT40779 for the US Department of Energy, National Energy Technology Laboratory (DoE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a gas turbine. A conceptual hybrid system design was selected for analysis and evaluation. The selected system is estimated to have over 65% system efficiency, a first cost of approximately $650/kW, and a cost of electricity of 8.4 cents/kW-hr. A control strategy and conceptual control design have been developed for the system. A number of SOFC module tests have been completed to evaluate the pressure impact to performance stability. The results show that the operating pressure accelerates the performance degradation. Several experiments were conducted to explore the effects of pressure on carbon formation. Experimental observations on a functioning cell have verified that carbon deposition does not occur in the cell at steam-to-carbon ratios lower than the steady-state design point for hybrid systems. Heat exchanger design, fabrication and performance testing as well as oxidation testing to support heat exchanger life analysis were also conducted. Performance tests of the prototype heat exchanger yielded heat transfer and pressure drop characteristics consistent with the heat exchanger specification. Multicell stacks have been tested and performance maps were obtained under hybrid operating conditions. Successful and repeatable fabrication of large (>12-inch diameter) planar SOFC cells was demonstrated using the tape calendering process. A number of large area cells and stacks were successfully performance tested at ambient and pressurized conditions. A 25 MW plant configuration was selected with projected system efficiency of over 65% and a factory cost of under $400/kW. The plant design is modular and can be scaled to both higher and lower plant power ratings. Integrated gasification fuel cell systems or IGFCs were developed and analyzed for plant sizes in excess of 200 MW. Two alternative integration configurations were selected with projected system efficiency of over 53% on a HHV basis, or about 10 percentage points higher than that of the state-of-the-art Integrated Gasification Combined Cycle (IGCC) systems.

Nguyen Minh

2005-12-01T23:59:59.000Z

294

The Potential Benefits of Distributed Generation and the Rate-Related  

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

The Potential Benefits of Distributed Generation and the The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion. Report Pursuant to Section 1817 of the Energy Policy Act of 2005. The Potential Benefits of Distributed Generation and the Rate-Related Issues That May Impede Its Expansion More Documents & Publications The potential benefits of distributed deneration and rate-related issues that may impede issues its expansion. June 2007 Notice of inquiry and request for Information - Study of the potential benefits of distributed generation: Federal Register Notice Volume 71, No.

295

A Multi-State Model for the Reliability Assessment of a Distributed Generation System via Universal Generating Function  

E-Print Network (OSTI)

the power output of one solar module u-function of the power output of one solar module, Number of functioning solar modules in the solar generator Power output of a single solar module at solar irradiance-function of the mechanical condition of one renewable generator, Random variable representing the power output of a solar

296

Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation  

E-Print Network (OSTI)

history of concern about such emissions has led to significant improvements in the polluting characteristics of electricity generation

Heath, Garvin A.; Granvold, Patrick W.; Hoats, Abigail S.; Nazaroff, William W

2005-01-01T23:59:59.000Z

297

Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation  

E-Print Network (OSTI)

Generation Facilities. California Energy Commission,Production for 2001. California Energy Commission,Power Plants. California Energy Commission, Sacramento, CA.

Heath, Garvin A.; Granvold, Patrick W.; Hoats, Abigail S.; Nazaroff, William W

2005-01-01T23:59:59.000Z

298

Smartgrids and distributed generation: the future electricity networks of the European union  

Science Conference Proceedings (OSTI)

A new concept for the European electrical system is emerging where a portion of the electricity generated by large conventional plants will be displaced by a great number of small generators disseminated throughout the territory. In this scenario, each ... Keywords: distributed generation, electrical distribution systems, energy and environment

Francesco Muzi

2008-02-01T23:59:59.000Z

299

Greenhouse Gas Abatement with Distributed Generation in California...  

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

We use a mixed-integer linear program (MILP) that has the minimization of a site's annual energy costs as objective. Using 138 representative commercial sites in California (CA)...

300

Wind generating capacity is distributed unevenly across the United ...  

U.S. Energy Information Administration (EIA)

The highest concentration of wind turbines in the United States is in the Great Plains states, where the best conditions for onshore wind power generation exist.

Note: This page contains sample records for the topic "distributed generation represents" 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

Introduction to Distributed Generation and the CERTS Microgrid  

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

operation of small-scale generators clustered with loads in local groupings called microgrids. Conceptually and in simulation, a electrical engineering system that will allow...

302

Voltage Support in Distributed Generation by Power Electronics.  

E-Print Network (OSTI)

?? There is an increasing amount of power processed through power electronics in the areas of generation interface, energy storage and loads. This increment enables (more)

Strand, Bjrn Erik

2008-01-01T23:59:59.000Z

303

Distributed Generation System Characteristics and Costs in the...  

Gasoline and Diesel Fuel Update (EIA)

on-site generation of energy, often electricity from renewable energy systems such as solar photovoltaics (PV) and small wind turbines. Many factors influence the market for...

304

Definition: Generator-To-Load Distribution Factor | Open Energy...  

Open Energy Info (EERE)

on an identified transmission facility or Flowgate.1 Related Terms Load Shift Factor, transmission lines, Generator Shift Factor, transmission line, flowgate, smart grid...

305

Methodology The electricity generation and distribution network in the Western United States is  

E-Print Network (OSTI)

Methodology The electricity generation and distribution network in the Western United States is comprised of power plants, electric utilities, electrical transformers, transmission and distribution infrastructure, etc. We conceptualize the system as a transportation network with resources (electricity

Hall, Sharon J.

306

Parallel and distributed trajectory generation of redundant manipulators through cooperation and competition among subsystems  

Science Conference Proceedings (OSTI)

Autonomous distributed control (ADC) is one of the most attractive approaches for more versatile and autonomous robot systems. The paper proposes a parallel and distributed trajectory generation method for redundant manipulators through cooperative and ...

T. Tsuji; S. Nakayama; K. Ito

1997-06-01T23:59:59.000Z

307

Generation of Moist Potential Vorticity in Extratropical Cyclones. Part II: Sensitivity to Moisture Distribution  

Science Conference Proceedings (OSTI)

The effects of different moisture distributions on the generation of moist potential vorticity (MPV) in extratropical cyclones are examined by numerical simulations. These sensitivity experiments show that low-level negative MPV generation ...

Han-Ru Cho; Zuohao Cao

1998-02-01T23:59:59.000Z

308

A hybrid simulation framework to assess the impact of renewable generators on a distribution network  

Science Conference Proceedings (OSTI)

With an increasing number of small-scale renewable generator installations, distribution network planners are faced with new technical challenges (intermittent load flows, network imbalances...). Then again, these decentralized generators (DGs) present ...

Fanny Boulaire; Mark Utting; Robin Drogemuller; Gerard Ledwich; Iman Ziari

2012-12-01T23:59:59.000Z

309

Modeling of Doubly Fed Induction Generators for Distribution System Power Flow Analysis.  

E-Print Network (OSTI)

??Large-scale integration of Wind Generators (WGs) with distribution systems is underway right across the globe in a drive to harness green energy. The Doubly Fed (more)

Dadhania, Amitkumar

2010-01-01T23:59:59.000Z

310

MINT: a Computer Program for Adaptive Monte Carlo Integration and Generation of Unweighted Distributions  

E-Print Network (OSTI)

In this note I illustrate the program MINT, a FORTRAN program for Monte Carlo adaptive integration and generation of unweighted distributions.

Nason, P

2007-01-01T23:59:59.000Z

311

MINT: a Computer Program for Adaptive Monte Carlo Integration and Generation of Unweighted Distributions  

E-Print Network (OSTI)

In this note I illustrate the program MINT, a FORTRAN program for Monte Carlo adaptive integration and generation of unweighted distributions.

P. Nason

2007-09-13T23:59:59.000Z

312

Decentralized control techniques applied to electric power distributed generation in microgrids.  

E-Print Network (OSTI)

??Distributed generation of electric energy has become part of the current electric power system. In this context a new scenario is arising in which small (more)

Vsquez Quintero, Juan Carlos

2009-01-01T23:59:59.000Z

313

Simulation of Stability Analysis for Distribution Systems with Dispersed Generation Using Matlab/Simulink.  

E-Print Network (OSTI)

??This thesis is to investigate the voltage sag, transient stability and operation feasibility of power islanding with different types of dispersed generation in distribution systems. (more)

Huang, Kun-Cyuan

2005-01-01T23:59:59.000Z

314

Role of solid oxide fuel cell distributed generation for stationary power application.  

E-Print Network (OSTI)

??Based on an availabe fuel cell dyanmical model, an inportant concept feasible operating area is introduced. Fuel cell based distributed generator is studied to solve (more)

Li, Yonghui.

2008-01-01T23:59:59.000Z

315

Utility/Industry Partnerships Involving Distributed Generation Technologies in Evolving Electricity Markets  

E-Print Network (OSTI)

Electricity markets in the United States are undergoing unprecedented structural changes as a result of the confluence of regulatory, competitive, and technological forces. This paper will introduce the role of distributed generation technologies in evolving electric markets and will review both current and emerging distributed generation technologies aimed at retail industrial, commercial and residential markets. This paper will draw upon several Electric Power Research Institutes (EPRI) and member utility case studies involving the assessment of distributed generation in premium power service, standby power and industrial cogeneration applications. In addition, EPRI products and services which can help evaluate energy service options involving distributed generation will also be briefly reviewed.

Rastler, D. M.

1997-04-01T23:59:59.000Z

316

Strategic Intelligence Update: Energy Storage & Distributed Generation, May-June 2010  

Science Conference Proceedings (OSTI)

Distributed generation and energy storage technologies add value to a wide range of applications within the electric utility enterprise. Both distributed generation and energy storage systems can help utilities shift and manage peak loads within the distribution system, improve reliability, and potentially help defer infrastructure upgrades. Bulk energy storage especially has the ability to improve the value of intermittent renewable resources. Smaller-scale distributed energy storage, on the order of a ...

2010-05-28T23:59:59.000Z

317

A Study of Distributed Generation System Characteristics and Protective Load Control Strategy  

E-Print Network (OSTI)

turbines: Doubly-fed Induction Generator (DFIG) and Fixed-speed Wind Turbine (FSWT) are compared), Distributed Generation System (DGS), Doubly- fed Induction Generator (DFIG), Fixed-speed Wind Turbine (FSWT (FSWT) and doubly-fed induction generator wind turbine (DFIG) have different characteristics, when

Chen, Zhe

318

Fuel Cycle Comparison of Distributed Power Generation Technologies  

E-Print Network (OSTI)

, as well as for coal and natural gas grid-generation technologies, are provided as baseline cases Cycle Power Plants 14.9 33.1 Natural Gas Turbine, Combined Cycle Power Plants 18.3 46.0 Coal comparable to the total energy use associated with the natural gas and coal grid-generation technologies

Argonne National Laboratory

319

Can Satellite Sampling of Offshore Wind Speeds Realistically Represent Wind Speed Distributions? Part II: Quantifying Uncertainties Associated with Distribution Fitting Methods  

Science Conference Proceedings (OSTI)

Remote sensing tools represent an attractive proposition for measuring wind speeds over the oceans because, in principle, they also offer a mechanism for determining the spatial variability of flow. Presented here is the continuation of research ...

S. C. Pryor; M. Nielsen; R. J. Barthelmie; J. Mann

2004-05-01T23:59:59.000Z

320

The potential for distributed generation in Japanese prototype buildings: A DER-CAM analysis of policy, tariff design, building energy use, and technology development (English Version)  

E-Print Network (OSTI)

Potential for Distributed Generation in Japanese PrototypePotential for Distributed Generation in Japanese PrototypePotential for Distributed Generation in Japanese Prototype

Zhou, Nan; Marnay, Chris; Firestone, Ryan; Gao, Weijun; Nishida, Masaru

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

Traces generation to simulate large-scale distributed applications  

Science Conference Proceedings (OSTI)

In order to study the performance of scheduling algorithms, simulators of parallel and distributed applications need accurate models of the application's behavior during execution. For this purpose, traces of low-level events collected during the actual ...

Olivier Dalle; Emilio P. Mancini

2011-12-01T23:59:59.000Z

322

Distributed Photovoltaic Generation in Residential Distribution Systems: Impacts on Power Quality and Anti-islanding.  

E-Print Network (OSTI)

??The past few decades have seen a consistent growth of distributed PV sources. Distributed PV, like other DG sources, can be located at or near (more)

Mitra, Parag

2013-01-01T23:59:59.000Z

323

Some Aspects of Distribution System Planning in the Context of Investment in Distributed Generation.  

E-Print Network (OSTI)

??A paradigm shift in distribution system design and planning is being led by the deregulation of the power industry and the increasing adoption of distributed (more)

Wong, Steven M.

2009-01-01T23:59:59.000Z

324

Photovoltaic generator modeling for large scale distribution system studies.  

E-Print Network (OSTI)

??Geographic regions with favorable conditions for photovoltaic (PHV) power generation are seeing increasing numbers of three-phase commercial installations and single-phase residential sized installations. PHV sources (more)

Golder, Andrew S.

2007-01-01T23:59:59.000Z

325

Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation  

E-Print Network (OSTI)

California Gross System Electricity Production for 2001.CA. http://energy.ca.gov/electricity/gross_system_power.htmlCEC. 2002c. 1992-2001 Electricity Generation By Fuel Type.

Heath, Garvin A.; Granvold, Patrick W.; Hoats, Abigail S.; Nazaroff, William W

2005-01-01T23:59:59.000Z

326

Quantifying the Air Pollution Exposure Consequences of Distributed Electricity Generation  

E-Print Network (OSTI)

Beach Gen Station 1: Duke Energy Moss Landing LLC 2: Moss2: So Cal Edison Co 1: Duke Energy-South Bay Power PL 2:Beach Generating Station Duke Energy Moss Landing LLC AES

Heath, Garvin A.; Granvold, Patrick W.; Hoats, Abigail S.; Nazaroff, William W

2005-01-01T23:59:59.000Z

327

Program on Technology Innovation: Identification of Embedded Applications for New and Emerging Distributed Generation Technologies  

Science Conference Proceedings (OSTI)

Novel distributed generation (DG) technologies hold the potential of serving the needs of a variety of end-use applications, both existing as well as emerging. This report describes some of the emerging end-use applications and evaluates their potential for integration with distributed generation applications. The analysis addresses their value in terms of modularity, environmental friendliness, and favorable production economics.

2006-11-16T23:59:59.000Z

328

Integrating Small Scale Distributed Generation into a Deregulated Market: Control Strategies and Price Feedback  

E-Print Network (OSTI)

Small scale power generating technologies, such as gas turbines, small hydro turbines, photovoltaics, wind turbines and fuel cells, are gradually replacing conventional generating technologies, for various applications, in the electric power system. The industry restructuring process in the United States is exposing the power sector to market forces, which is creating competitive structures for generation and alternative regulatory structures for the transmission and distribution systems. The potentially conflicting economic and technical demands of the new, independent generators introduce a set of significant uncertainties. What balance between market forces and centralized control will be found to coordinate distribution system operations? How will the siting of numerous small scale generators in distribution feeders impact the technical operations and control of the distribution system? Who will provide ancillary services (such as voltage support and spinning reserves) in the new competitive environment? This project investigates both the engineering and market integration of distributed generators into the distribution system. On the technical side, this project investigates the frequency performance of a distribution system that has multiple small scale generators. Using IEEE sample distribution systems and new dynamic generator models, this project develops general methods for

Judith Cardell; Marija Ili?; Richard D. Tabors

1997-01-01T23:59:59.000Z

329

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

of New York State electricity and natural gas rates. DER_CAMElectricity Tariff Structure on Distributed Generation Adoption in New York State 4.4.1.2 RateElectricity Tariff Structure on Distributed Generation Adoption in New York State Standby rate

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

330

An active islanding detection method for small-scale distributed generators  

Science Conference Proceedings (OSTI)

This paper proposes a new islanding detection method for use in a small-scale, grid-interconnected distributed generator system. The proposed islanding detection method is based on voltage fluctuation injection, which can be obtained through high-impedance ... Keywords: correlation factor, distributed generator, islanding detection, voltage fluctuation injection

Wen-Yeau Chang

2008-06-01T23:59:59.000Z

331

Assessment of Distributed Resources: A Case Study for Tri-State Generation and Transmission Association, Inc.  

Science Conference Proceedings (OSTI)

During the process of upgrading service for three distribution customers, Tri-State Generation and Transmission Association (Tri-State) evaluated various distributed generation (DIS-GEN) options. Candidate DIS-GEN systems competitive with other options could become the basis for customer upgrade solutions.

1997-12-05T23:59:59.000Z

332

Economical design of gate-commutated inverters for the grid-tied distributed generators  

Science Conference Proceedings (OSTI)

The cost-effectiveness of small distributed generating resources is vital to the success of the high penetration of distributed generators within the microgrid concept. A common mechanism is the use of highly efficient inverters following the electrical storage systems. In this paper

Mujahidul Islam; Adedamola Omole; Arif Islam; Alexander Domijan Jr.

2011-01-01T23:59:59.000Z

333

Energy Storage and Distributed Energy Generation Project, Final Project Report  

DOE Green Energy (OSTI)

tested, and scaled up to provide relief for both underserved and overstressed portions of the Nations grid. TECs research is closely associated with Sections 5.0 and 6.0 of the DOE "Five-year Program Plan for FY2008 to FY2012 for Electric Transmission and Distribution Programs, August 2006.

Schwank, Johannes; Mader, Jerry; Chen, Xiaoyin; Mi, Chris; Linic, Suljo; Sastry, Ann Marie; Stefanopoulou, Anna; Thompson, Levi; Varde, Keshav

2008-03-31T23:59:59.000Z

334

Biogas-Fueled Distributed Generation: Three Manure Digester Case Studies  

Science Conference Proceedings (OSTI)

Biogas produced from the anaerobic digestion of livestock waste can provide electrical and thermal energy while solving environmental challenges, including waste management and greenhouse gas reduction. The three manure digester gas projects described in this report demonstrate the potential of such systems to provide co-generated power and heat.

2004-12-27T23:59:59.000Z

335

Distributed Generation Dispatch Optimization under VariousElectricity Tariffs  

Science Conference Proceedings (OSTI)

The on-site generation of electricity can offer buildingowners and occupiers financial benefits as well as social benefits suchas reduced grid congestion, improved energy efficiency, and reducedgreenhouse gas emissions. Combined heat and power (CHP), or cogeneration,systems make use of the waste heat from the generator for site heatingneeds. Real-time optimal dispatch of CHP systems is difficult todetermine because of complicated electricity tariffs and uncertainty inCHP equipment availability, energy prices, and system loads. Typically,CHP systems use simple heuristic control strategies. This paper describesa method of determining optimal control in real-time and applies it to alight industrial site in San Diego, California, to examine: 1) the addedbenefit of optimal over heuristic controls, 2) the price elasticity ofthe system, and 3) the site-attributable greenhouse gas emissions, allunder three different tariff structures. Results suggest that heuristiccontrols are adequate under the current tariff structure and relativelyhigh electricity prices, capturing 97 percent of the value of thedistributed generation system. Even more value could be captured bysimply not running the CHP system during times of unusually high naturalgas prices. Under hypothetical real-time pricing of electricity,heuristic controls would capture only 70 percent of the value ofdistributed generation.

Firestone, Ryan; Marnay, Chris

2007-05-01T23:59:59.000Z

336

Intelligence in Electricity Networks for Embedding Renewables and Distributed Generation  

E-Print Network (OSTI)

Abstract Over the course of the 20 th century, the electrical power systems of industrialized economies have become one of the most complex systems created by mankind. In the same period, electricity made a transition from a novelty, to a convenience, to an advantage, and finally to an absolute necessity. World-wide electricity use has been ever-growing. The electricity infrastructure consists of two highlyinterrelated and complex subsystems for commodity trade and physical delivery. To ensure the infrastructure is up and running in the first place, the increasing electricity demand poses a serious threat. Additionally, there are a number of other trends that are forcing a change in infrastructure management. Firstly, there is a shift to intermittent sources: a larger share of renewables in the energy mix means a higher influence of weather patterns on generation. At the same time, introducing more combined heat and power generation (CHP) couples electricity production to heat demand patterns. Secondly, the location of electricity generation relative to the load centers is changing. Large-scale generation from wind is migrating towards and into the seas and oceans, away from the locations of high electricity demand. On

J. K. Kok; M. J. J. Scheepers; I. G. Kamphuis; J. K. Kok; M. J. J. Scheepers; I. G. Kamphuis

2010-01-01T23:59:59.000Z

337

Gamma-Ray Exposure Rate Distribution in a Steam Generator  

Science Conference Proceedings (OSTI)

Gamma-ray exposure rate measurements were made with thermoluminescent dosimeters to determine the relative contribution of various surface areas in a steam generator to the overall radiation levels. The measurements were compared with analytic predictions based on discrete ordinates and point kernel techniques, and assessments of the radiation source inventory of the various surfaces were developed.

1983-05-01T23:59:59.000Z

338

Consequences of Fault Currents Contributed by Distributed Generation  

E-Print Network (OSTI)

into account the phase-locked loop (PLL) dynamics. An example, in which two SOFC plants provide power of a simple microgrid.1 The generators, in this case solid oxide fuel cells (SOFCs), are grid connected. When the circuit breaker opens, however, buses 1 to 4 form an autonomous microgrid, with the two SOFC sources

339

Greenhouse Gas Abatement with Distributed Generation in California's Commercial  

E-Print Network (OSTI)

the very qualities that attract people to live there. Notes From the Chair C lean energy has been a hot, hydroelectric, geothermal electric, anaerobic digestion, and fuel cells using renewable fuels. Renewable, fuel cell, or internal combustion engine, and you can generate on-demand power with zero pollution

340

Compatibility Tests for Dissimilar Types of Distributed Generation Powering a Microgrid  

Science Conference Proceedings (OSTI)

Microgrids are small power systems that can operate independently of the bulk power system. They are composed of one or more distributed resources (DR) and electrical loads that are interconnected by a distribution system. Most of today's microgrids are fairly simple in design, consisting of a single generator supplying a dedicated load or of multiple identical generating units ganged to operate much like a single unit. This report addresses technical issues involved when dissimilar generators are used.

2003-03-12T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

Novel Distributed Generation Control and Dispatching System: Application Validation and Benefits Quantification  

Science Conference Proceedings (OSTI)

This report describes a novel control and dispatching hardware/software system for distributed generation. The system allows the connection of multiple generators at a number of sites to a utility control and monitoring system for the purpose of providing peaking power for the utility. Using distributed generation for this purpose is a potentially cost-effective solution to localized power system constraints caused by the inability to increase power transmission into an area experiencing steady growth in...

2002-10-01T23:59:59.000Z

342

PSCAD Modules Representing PV Generator  

SciTech Connect

Photovoltaic power plants (PVPs) have been growing in size, and the installation time is very short. With the cost of photovoltaic (PV) panels dropping in recent years, it can be predicted that in the next 10 years the contribution of PVPs to the total number of renewable energy power plants will grow significantly. In this project, the National Renewable Energy Laboratory (NREL) developed a dynamic modeling of the modules to be used as building blocks to develop simulation models of single PV arrays, expanded to include Maximum Power Point Tracker (MPPT), expanded to include PV inverter, or expanded to cover an entire PVP. The focus of the investigation and complexity of the simulation determines the components that must be included in the simulation. The development of the PV inverter was covered in detail, including the control diagrams. Both the current-regulated voltage source inverter and the current-regulated current source inverter were developed in PSCAD. Various operations of the PV inverters were simulated under normal and abnormal conditions. Symmetrical and unsymmetrical faults were simulated, presented, and discussed. Both the three-phase analysis and the symmetrical component analysis were included to clarify the understanding of unsymmetrical faults. The dynamic model validation was based on the testing data provided by SCE. Testing was conducted at SCE with the focus on the grid interface behavior of the PV inverter under different faults and disturbances. The dynamic model validation covers both the symmetrical and unsymmetrical faults.

Muljadi, E.; Singh, M.; Gevorgian, V.

2013-08-01T23:59:59.000Z

343

Optimal Siting and Sizing of Solar Photovoltaic Distributed Generation to Minimize Loss, Present Value of Future Asset Upgrades and Peak Demand Costs on a Real Distribution Feeder.  

E-Print Network (OSTI)

??The increasing penetration of distributed generation (DG) in power distribution systems presents technical and economic benefits as well as integration challenges to utility engineers. Governments (more)

Mukerji, Meghana

2011-01-01T23:59:59.000Z

344

Distributed Generation and Renewable Energy in the Electric Cooperative Sector  

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

Generation and Generation and Renewable Energy in the Electric Cooperative Sector Ed Torrero Cooperative Research Network (CRN) National Rural Electric Cooperative Association September 22, 2004 Co-op Basics  Customer owned  Serve 35 million people in 47 states  75 percent of nation's area  2.3 million miles of line is close to half of nation's total  Growth rate twice that of IOU Electrics  Six customers per line-mile vs 33 for IOU  Co-ops view DP as a needed solution; not as a "problem" Broad Range of Technologies Chugach EA 1-MW Fuel Cell Installation Post Office in Anchorage, AK Chugach EA Microturbine Demo Unit at Alaska Village Electric Co-op CRN Transportable 200kW Fuel Cell at Delta- Montrose EA in Durango, CO Plug Power Fuel Cell at Fort Jackson, SC

345

Control of Combined Storage and Generation in Dynamic Distribution Systems  

E-Print Network (OSTI)

Battery energy storage units provide an added degree of freedom to a microgrid that allows time-shifting between the generation and use of energy. Microgrid energy storage elements are very similar to any other inverter-based source with the exception of bi-directional power flow capabilities. Having the ability to generate and accept power means that the demand and the supply can be disparate by as far as the power capabilities of the energy storage unit allow. This enables combined heat power systems to support a heat load demand independent of local electric power demand. Having an energy storage element on standby also allows for a certain amount of immediately available power to reduce the need for idling or lightly loaded rotating generators under the n-1 stability criterion. The relative speed of any inverter based source allows a sub-cycle change in power output to ensure that dynamic loads will be supplied regardless of the slow reaction of larger rotating sources that require seconds of response time to transients. Thirdly, they can act as a UPS system during grid faults, providing backup power for some time even for non-essential loads while the microgrid is islanded. Lastly, the energy storage element can provide an economic and/or logistical advantage by

Certs Microgrid; Robert Lasseter; Micah Erickson

2009-01-01T23:59:59.000Z

346

Distributed Generation Potential of the U.S. CommercialSector  

Science Conference Proceedings (OSTI)

Small-scale (100 kW-5 MW) on-site distributed generation (DG) economically driven by combined heat and power (CHP) applications and, in some cases, reliability concerns will likely emerge as a common feature of commercial building energy systems in developed countries over the next two decades. In the U.S., private and public expectations for this technology are heavily influenced by forecasts published by the Energy Information Administration (EIA), most notably the Annual Energy Outlook (AEO). EIA's forecasts are typically made using the National Energy Modeling System (NEMS), which has a forecasting module that predicts the penetration of several possible commercial building DG technologies over the period 2005-2025. Annual penetration is forecast by estimating the payback period for each technology, for each of a limited number of representative building types, for each of nine regions. This process results in an AEO2004 forecast deployment of about a total 3 GW of DG electrical generating capacity by 2025, which is only 0.25 percent of total forecast U.S. capacity. Analyses conducted using both the AEO2003 and AEO2004 versions of NEMS changes the baseline costs and performance characteristics of DG to reflect a world without U.S. Department of Energy (DOE) research into several thermal DG technologies, which is then compared to a case with enhanced technology representative of the successful achievement of DOE research goals. The net difference in 2025 DG penetration is dramatic using the AEO2003 version of NEMS, but much smaller in the AEO2004 version. The significance and validity of these contradictory results are discussed, and possibilities for improving estimates of commercial U.S. DG potential are explored.

LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Gumerman,Etan; Marnay, Chris

2005-06-01T23:59:59.000Z

347

Power Quality and Harmonic Impacts of Distributed Generation Technologies  

Science Conference Proceedings (OSTI)

The PQ TechWatch report series builds on EPRI's broad expertise and power quality testing and evaluation work to provide a vital flow of data, including important information on emerging trends powering ebusinesses and developments in next-generation power quality mitigation and energy storage technologies.This PQ TechWatch aims to present an overview of power quality impacts resulting from operation of DG technologies on the grid. An emphasis on harmonic effects is included here. Concerns in this area a...

2010-12-14T23:59:59.000Z

348

DISTRIBUTED GENERATION POWER UNITS AT MARGINAL OIL WELL SITES  

SciTech Connect

The CEC approved funding on April 9, 2003 for $1,000,000.00 instead of the $1,500,000.00 COPE requested for the project. A kickoff meeting with the California Energy Commission (CEC) was held on Monday, April 14, 2003, in their Sacramento, CA offices. Mark Carl, IOGCC project manager for the DOE grant, attended this meeting, along with Bob Fickes with COPE, Edan Prabhu, Mike Merlo and CEC officials. The change in funding by the CEC required a modification in the scope of work and an amended form DOE F 4600.1. The modifications were completed and the IOGCC received approval to commence work on the project on May 9, 2003. On May 29, 2003, Virginia Weyland with DOE/NETL, Mark Carl with IOGCC, and Bob Fickes with COPE, Edan Prabhu and Mike Merlo, consultants with COPE, participated in a teleconference kick-off meeting. During May, 2003, COPE canvassed its membership for potential locations for the four test sites. They received a very good response and have identified at least two potential sites for each of the four test sites. COPE has been obtaining gas samples from the various potential lease sites for analyses to verify the chemical properties analyses which the oil and gas producers provided during the initial contact period. The St. James project located at 814 W. 23 rd Street in Los Angeles, California, was selected as the first test site for the project. A Project Advisory Committee (PAC) was established in May, 2003. The following representatives from each of the following areas of expertise comprise the PAC membership. Acquisition of permits for the initial test site has required drawn out negotiations with CEC which has hindered progress on the technical aspects of the project. The technical aspects will begin aggressively beginning in October, 2003. The Southern California Air Quality Management District (SCAQMD) donated three Capstone micro-turbines to the project. These micro-turbines will be utilized at the St. James Project site located in Los Angeles, California. This site will fulfill the requirements of the medium BTU test site. It is anticipated that start-up of operations will begin during late December, 2003 or early January, 2004.

Mark A. Carl

2003-10-29T23:59:59.000Z

349

Distributed Generation as Combined Heat and Power (DG-CHP) (New...  

Open Energy Info (EERE)

Edit with form History Share this page on Facebook icon Twitter icon Distributed Generation as Combined Heat and Power (DG-CHP) (New York) This is the approved revision of...

350

Novel Control of PV Solar and Wind Farm Inverters as STATCOM for Increasing Connectivity of Distributed Generators.  

E-Print Network (OSTI)

??The integration of distributed generators (DGs) such as wind farms and PV solar farms in distribution networks is getting severely constrained due to problems of (more)

AC, Mahendra

2013-01-01T23:59:59.000Z

351

Velocity distribution measurements in atomic beams generated using laser induced back-ablation  

E-Print Network (OSTI)

We present measurements of the velocity distribution of calcium atoms in an atomic beam generated using a dual-stage laser back-ablation apparatus. Distributions are measured using a velocity selective Doppler time-of-flight technique. They are Boltzmann-like with rms velocities corresponding to temperatures above the melting point for calcium. Contrary to a recent report in the literature, this method does not generate a sub-thermal atomic beam.

Denning, A; Lee, S; Ammonson, M; Bergeson, S D

2008-01-01T23:59:59.000Z

352

Study and Development of Anti-Islanding Control for Synchronous Machine-Based Distributed Generators: November 2001--March 2004  

SciTech Connect

This report summarizes the study and development of new active anti-islanding control schemes for synchronous machine-based distributed generators, including engine generators and gas turbines.

Ye, Z.

2006-03-01T23:59:59.000Z

353

Distributed Generation Planning for Loss and Cost Minimisation in Power Distribution Systems.  

E-Print Network (OSTI)

??In this thesis, a method based on a sensitivity analysis and quadratic curve-fitting technique for power loss reduction in a low-voltage distribution area is proposed. (more)

Anwar, Adnan

2012-01-01T23:59:59.000Z

354

Optimal Placement and Sizing of Distributed Generator Units using Genetic Optimization  

E-Print Network (OSTI)

and electricity in the distribution grid. A group of DG units can form a virtual power plant, being centrally of distributed generation units in a residential distri- bution grid. Power losses are minimized while grid topology with pro- duction and residential load data based on measurements. Different scenarios

355

Assessment of the Distributed Generation Market Potential for Solid Oxide Fuel Cells  

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

the Distributed the Distributed Generation Market Potential for Solid Oxide Fuel Cells September 29, 2013 DOE/NETL- 342/093013 NETL Contact: Katrina Krulla Analysis Team: Arun Iyengar, Dale Keairns, Dick Newby Contributors: Walter Shelton, Travish Shulltz, Shailesh Vora OFFICE OF FOSSIL ENERGY Table of Contents Executive Summary .........................................................................................................................1 1 Introduction ...................................................................................................................................2 2 DG Market Opportunity ................................................................................................................3 3 SOFC Technology Development Plan ..........................................................................................6

356

Calibration of Instrumented Steam Separators to Determine Quality and Flow Distribution in an Operating Steam Generator  

Science Conference Proceedings (OSTI)

This study examined the feasibility of instrumenting steam separators on a steam generator as two-phase flowmeters to measure flow distributions and steam quality near the separator deck plate. Instrumented prototypical separators were tested in a laboratory under steam generator conditions, and test data correlations were developed. The usefulness of such data in the qualification of thermal-hydraulic computer codes was addressed.

1983-01-01T23:59:59.000Z

357

Energy Storage and Distributed Generation in the Smart Grid: Characterization and Value Analysis  

Science Conference Proceedings (OSTI)

Many utilities are investing in the smart grid. These activities include acquiring the information and enterprise control technology that can communicate, control, and manage end-user loads and distributed energy resources. Smart grid investments are also intended to enable improved use, management, aggregation, and control of distributed energy resource (DER) assets including distributed generation and energy storage systems. However, little research has been conducted to estimate the value and cost of ...

2009-12-03T23:59:59.000Z

358

Generating well-distributed point sets with a self-similar hierarchical tile  

E-Print Network (OSTI)

We present a method for generating well-distributed point according to a given density. Our method is based on a single precomputed tile. The tile is both self-similar and hierarchical. A selfsimilar tile allows to increase the density of points in large steps by recursively subdividing the tile. A hierarchical tile allows to smoothly adjust the density of points. We present an interesting method to construct a self-similar point distribution, we show how to construct a well-distributed self-similar point distribution, and how to make a point distribution hierarchical. Our method is capable of generating well-distributed point sets in real time, using an algorithm that is easy to implement. However, because only a single tile is used, noticeable periodicity is introduced in the generated point distributions. Therefore, our method is somewhat better suited for applications that do not require point distributions with a high visual quality, such as sampling. Volume xx (200y), Number z, pp. 18

Philip Dutr; Philip Dutr; Ares Lagae; Philip Dutr

2006-01-01T23:59:59.000Z

359

Laying the Groundwork: Lessons Learned from the Telecommunications Industry for Distributed Generation; Preprint  

SciTech Connect

The telecommunications industry went through growing pains in the past that hold some interesting lessons for the growing distributed generation (DG) industry. The technology shifts and stakeholders involved with the historic market transformation of the telecommunications sector mirror similar factors involved in distributed generation today. An examination of these factors may inform best practices when approaching the conduits necessary to accelerate the shifting of our nation's energy system to cleaner forms of generation and use. From a technical perspective, the telecom industry in the 1990s saw a shift from highly centralized systems that had no capacity for adaptation to highly adaptive, distributed network systems. From a management perspective, the industry shifted from small, private-company structures to big, capital-intensive corporations. This presentation will explore potential correlation and outline the lessons that we can take away from this comparison.

Wise, A. L.

2008-05-01T23:59:59.000Z

360

Circuit Functionality and Requirements for Future Grid Integration of Distributed Renewable Generation  

Science Conference Proceedings (OSTI)

Distributed Energy Resources (DER) is an emerging technology that offers the potential to improve power system reliability, increase generation diversity, and provide greater flexibility to help match the growing energy needs. Small, modular DER plants have shorter implementation and commissioning timelines and can be brought on-line faster. However, utilities are concerned with the adverse impact of DER on the operation and management of distribution systems. The concern with potential impacts of DER on...

2010-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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.


361

Improvement of efficiency in generating random $U(1)$ variables with Boltzmann distribution  

E-Print Network (OSTI)

A method for generating random $U(1)$ variables with Boltzmann distribution is presented. It is based on the rejection method with transformation of variables. High efficiency is achieved for all range of temparatures or coupling parameters, which makes the present method especially suitable for parallel and pipeline vector processing machines. Results of computer runs are presented to illustrate the efficiency. An idea to find such algorithms is also presented, which may be applicable to other distributions of interest in Monte Carlo simulations.

Tetsuya Hattori; Hideo Nakajima

1992-10-10T23:59:59.000Z

362

EPRI First-Generation Advanced Radial Feeder for the Distribution System of the Future  

Science Conference Proceedings (OSTI)

This report describes a design for integrating distributed generation (DG) on a radial feeder, amounting to 75% of the feeder's peak load. A standard IEEE radial test feeder was used for the study, which was conducted using software tools readily available to utilities. Distributed Network Protocol (DNP3) to IEC 61850 mappings were developed to enable adaptive voltage control on the feeder. This type of automation to enable the strategic use of DG has not been implemented before.

2006-12-20T23:59:59.000Z

363

Quantification of Regional Green House Gas Emission Impacts and Benefits for Distributed Generation  

Science Conference Proceedings (OSTI)

The electric power generation sector contributes about one-third of all green house gas (GHG) emissions in the United States. To curb green house gas emissions, all options in the electric power value chain must be considered and evaluated. More effective use of distributed photovoltaic (PV) systems and efficient use of natural gas via use in distributed combined heat, power (CHP), and cooling systems in the end-use sector may be options to mitigating GHG emissions. This research project quantitatively e...

2007-12-14T23:59:59.000Z

364

Assessment of Emerging Low-Emissions Technologies for Combustion-Based Distributed Resource Generators  

Science Conference Proceedings (OSTI)

This report analyzes the performance and cost of conventional and emerging emission control technologies for combustion-based distributed resource generators (combustion turbines, microturbines, and reciprocating engines). The performance is measured against the proposed California Air Resources Board (CARB) small generator certification standards for 2007. The costs are provided as capital cost and cost of electricity for emission control. The report also provides information on alternative fuel conside...

2005-03-23T23:59:59.000Z

365

The Installed Base of Distributed Electrical Generating Resources in the U.S.  

Science Conference Proceedings (OSTI)

The generation of electric power at or near electric loads, referred to here as distributed resources (DR), has received considerable attention during recent years, with some experts projecting that DR technologies may provide up to 30 percent of all new generation resources installed in the United States within a couple of decades. There are, in fact, many electric generators in place that are or could be used as DR. There has not, however, been a concerted effort to quantify this fleet nor to understan...

2003-01-21T23:59:59.000Z

366

Molldeing and Simulation of a Small-Scale Wind Turbine Generator in Isolated Distribution Network  

Science Conference Proceedings (OSTI)

In recent years, the wind energy capacity is rapidly increasing in importance as a share of electricity supply on worldwide basis. A small-scale wind turbine generator is usually installed in an isolated distribution network. This paper aims to justzjj ...

2007-09-01T23:59:59.000Z

367

Generation and characterization of a source of wavelength division multiplexing quantum key distribution  

E-Print Network (OSTI)

Using spontaneous parametric down-conversion, photon pairs entangled in frequency and polarization were generated. After frequency resolving the photon pairs, the polarization correlations were measured on several polarization basis, and it was confirmed that the frequency resolved photon pairs were entangled in polarization, indicating the photon pairs can be used as a source of wavelength division multiplexing quantum key distribution.

Atsushi Yabushita; Takayoshi Kobayashi

2004-04-05T23:59:59.000Z

368

Distribution of orbits in $\\R^2$ of a finitely generated group of $\\SL(2,\\R)$  

E-Print Network (OSTI)

In this work, we study the asymptotic distribution of the non discrete orbits of a finitely generated group acting linearly on $\\R^2$. To do this, we establish new equidistribution results for the horocyclic flow on the unitary tangent bundle of the associated surface.

Maucourant, Franois

2012-01-01T23:59:59.000Z

369

A code generation approach to optimizing high-performance distributed data stream processing  

Science Conference Proceedings (OSTI)

We present a code-generation-based optimization approach to bringing performance and scalability to distributed stream processing applications. We express stream processing applications using an operator-based, stream-centric language called SPADE, which ... Keywords: profile driven optimization, streaming systems

Bu?ra Gedik; Henrique Andrade; Kun-Lung Wu

2009-11-01T23:59:59.000Z

370

Making the Most out of Distributed Generation without Endangering Normal Operation: A Model-Based Technical-Policy Approach.  

E-Print Network (OSTI)

??In this dissertation we introduce a model-based approach for efficiently locating and operating distributed generation (DG) without endangering stable system operation. The proposed approach supports (more)

Nazari, Masoud Honarvar

2012-01-01T23:59:59.000Z

371

Long-distance distribution of time-bin entanglement generated in a cooled fiber  

E-Print Network (OSTI)

This paper reports the first demonstration of the generation and distribution of entangled photon pairs in the 1.5-um band using spontaneous four-wave mixing in a cooled fiber. Noise photons induced by spontaneous Raman scattering were suppressed by cooling a dispersion shifted fiber with liquid nitrogen, which resulted in a significant improvement in the visibility of two-photon interference. By using this scheme, time-bin entangled qubits were successfully distributed over 60 km of optical fiber with a visibility of 76%, which was obtained without removing accidental coincidences.

Hiroki Takesue

2005-12-20T23:59:59.000Z

372

Momentum distributions of sequential ionization generated by an intense laser pulse  

E-Print Network (OSTI)

The relative yield and momentum distributions of all multiply charged atomic ions generated by a short (30 fs) intense (10(14)-5 x 10(18) W/cm(2)) laser pulse are investigated using a Monte Carlo simulation. We predict a substantial shift in the maximum (centroid) of the ion-momentum distribution along the laser polarization as a function of the absolute phase. This effect should be experimentally detectable with currently available laser systems even for relatively long pulses, such as 25-30 fs. In addition to the numerical results, we present semianalytical scaling for the position of the maximum.

Shvetsov-Shilovski, N. I.; Sayler, A. M.; Rathje, T.; Paulus, Gerhard G.

2011-01-01T23:59:59.000Z

373

Generation of distributed entangled coherent states over a lossy environment with inefficient detectors  

E-Print Network (OSTI)

Entangled coherent states are useful for various applications in quantum information processing but they are are sensitive to loss. We propose a scheme to generate distributed entangled coherent states over a lossy environment in such a way that the fidelity is independent of the losses at detectors heralding the generation of the entanglement. We compare our scheme with a previous one for the same purpose [Ourjoumtsev {\\em et al.}, Nat. Phys. {\\bf 5} 189 (2009)] and find parameters for which our new scheme results in superior performance.

A. P. Lund; T. C. Ralph; H. Jeong

2013-10-28T23:59:59.000Z

374

S & P Opines on Securitizing Distributed Generation | OpenEI Community  

Open Energy Info (EERE)

S & P Opines on Securitizing Distributed Generation S & P Opines on Securitizing Distributed Generation Home > Groups > OpenEI Community Central Graham7781's picture Submitted by Graham7781(1992) Super contributor 10 July, 2012 - 14:04 imported OpenEI Article originally published at NREL's Renewable Energy Project Finance website Renewable energy-related asset securitization has been gaining a lot of traction lately as a number of key stakeholders from both the private and public sectors have been stepping up their collaborative efforts (including NREL's finance team). To help frame the discussion and facilitate the creation of ratings-quality renewable energy asset pools, Standard and Poor's (S&P) rating agency has recently produced high-level guidance on various possible risk factors in the potential securitization

375

Ionic Liquids for Utilization of Waste Heat from Distributed Power Generation Systems  

Science Conference Proceedings (OSTI)

The objective of this research project was the development of ionic liquids to capture and utilize waste heat from distributed power generation systems. Ionic Liquids (ILs) are organic salts that are liquid at room temperature and they have the potential to make fundamental and far-reaching changes in the way we use energy. In particular, the focus of this project was fundamental research on the potential use of IL/CO2 mixtures in absorption-refrigeration systems. Such systems can provide cooling by utilizing waste heat from various sources, including distributed power generation. The basic objectives of the research were to design and synthesize ILs appropriate for the task, to measure and model thermophysical properties and phase behavior of ILs and IL/CO2 mixtures, and to model the performance of IL/CO2 absorption-refrigeration systems.

Joan F. Brennecke; Mihir Sen; Edward J. Maginn; Samuel Paolucci; Mark A. Stadtherr; Peter T. Disser; Mike Zdyb

2009-01-11T23:59:59.000Z

376

Benchmarking Distributed Generation Cost of Electricity and Characterization of Green House Gas Emission  

Science Conference Proceedings (OSTI)

Understanding the economic competitiveness and green house gas (GHG) footprint of all energy supply-side options has been identified by EPRI advisors as a key priority. This project benchmarks the cost of electricity and characterizes the GHG footprint of distributed generation (DG) options in various applications. DG technologies include small gas turbines, spark-ignited and diesel internal combustion engines, micro turbines, several types of fuel cells, Stirling engines, and photovoltaic systems.

2009-03-26T23:59:59.000Z

377

Small-Scale, Biomass-Fired Gas Turbine Plants Suitable for Distributed and Mobile Power Generation  

Science Conference Proceedings (OSTI)

This study evaluated the cost-effectiveness of small-scale, biomass-fired gas turbine plants that use an indirectly-fired gas turbine cycle. Such plants were originally thought to have several advantages for distributed generation, including portability. However, detailed analysis of two designs revealed several problems that would have to be resolved to make the plants feasible and also determined that a steam turbine cycle with the same net output was more economic than the gas turbine cycle. The incre...

2007-01-19T23:59:59.000Z

378

A review of agent-based models for forecasting the deployment of distributed generation in energy systems  

Science Conference Proceedings (OSTI)

Agent-based models are seeing increasing use in the study of distributed generation (DG) deployment. Researchers and decision makers involved in the implementation of DG have been lacking a concise overview of why they should consider using agent-based ... Keywords: agent-based modeling, consumer behavior, distributed generation, energy forecasting, product deployment

Jason G. Veneman; M. A. Oey; L. J. Kortmann; F. M. Brazier; L. J. de Vries

2011-06-01T23:59:59.000Z

379

Making the Economic Case for Small-Scale Distributed Wind -- A Screening for Distributed Generation Wind Opportunities: Preprint  

DOE Green Energy (OSTI)

This study was an offshoot of a previous assessment, which examined the potential for large-scale, greater than 50 MW, wind development on occupied federal agency lands. The study did not find significant commercial wind development opportunities, primarily because of poor wind resource on available and appropriately sized land areas or land use or aesthetic concerns. The few sites that could accommodate a large wind farm failed to have transmission lines in optimum locations required to generate power at competitive wholesale prices. The study did identify a promising but less common distributed generation (DG) development option. This follow-up study documents the NREL/Global Energy Concepts team efforts to identify economic DG wind projects at a select group of occupied federal sites. It employs a screening strategy based on project economics that go beyond quantity of windy land to include state and utility incentives as well as the value of avoided power purchases. It attempts to account for the extra costs and difficulties associated with small projects through the use of project scenarios that are more compatible with federal facilities and existing land uses. These benefits and barriers of DG are discussed, and the screening methodology and results are included. The report concludes with generalizations about the screening method and recommendations for improvement and other potential applications for this methodology.

Kandt, A.; Brown, E.; Dominick, J.; Jurotich, T.

2007-06-01T23:59:59.000Z

380

Assessment of a Transportable 200-kW Fuel Cell in Rural Distributed Generation Applications: Final Report: Georgia, Colorado, Alaska  

Science Conference Proceedings (OSTI)

Distributed generation is particularly attractive to electric cooperatives in rural areas because of their low customer densities and the rapid load growth that often occurs at the end of long radial distribution lines. EPRI and the National Rural Electric Cooperative Association (NRECA) Cooperative Research Network cosponsored this project to demonstrate the use of transportable 200-kW phosphoric acid fuel cell power plants in rural distributed generation applications. This final report details the proj...

2002-07-19T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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.


381

A Technique to Utilize Smart Meter Load Information for Adapting Overcurrent Protection for Radial Distribution Systems with Distributed Generations  

E-Print Network (OSTI)

Smart radial distribution grids will include advanced metering infrastructure (AMI) and significant distributed generators (DGs) connected close to loads. DGs in these radial distribution systems (RDS) introduce bidirectional power flows (BPFs) and contribute to fault current. These BPFs may cause unwanted tripping of existing overcurrent (OC) protection devices and result in permanent outages for a large number of customers. This thesis presents a protection approach that modified an existing overcurrent protection scheme to reduce the number of customers affected by faults in RDS with DGs. Further, a technique is presented that utilizes customers loading information from smart meters in AMI to improve the sensitivity of substation OC relays by adaptively changing the pickup settings. The modified protection approach involves predefining zones in RDS with DGs and installing directional OC relays and circuit breakers at the zonal boundaries. Zonal boundary relays determine faulted zones by sharing information on the direction of detected faults current using binary state signals over a communication medium. The technique to adapt the substation relay pickup settings uses the demand measurements from smart meters for two 12-hour intervals from the previous day to determine the maximum diversified demand at the relay?s location. The pickup settings of the substation relay for the two 12-hour intervals during the following day for the zone supplied by the substation are adaptively set based on the current that corresponds to the maximum diversified demand from the previous day. The techniques were validated through simulations in EMTP/PSCAD using an expanded IEEE 34 node radial test feeder that included DGs and a secondary distribution level. By decentralizing the control of the zonal boundary breakers, the single point of failure was eliminated in the modified protection approach. The cases studied showed that the modified protection approach allows for selective identification and isolation of the faulted zones. Also, the sensitivity of the substation OC relay was improved by at least 24% by using the pickup settings for the two 12-hour intervals from the smart meter demand measurements compared to the pickup settings computed using the conventional methodology based on the maximum loading of the zone.

Ituzaro, Fred Agyekum

2012-05-01T23:59:59.000Z

382

GREENHOUSE GAS REDUCTION POTENTIAL WITH COMBINED HEAT AND POWER WITH DISTRIBUTED GENERATION PRIME MOVERS - ASME 2012  

Science Conference Proceedings (OSTI)

Pending or recently enacted greenhouse gas regulations and mandates are leading to the need for current and feasible GHG reduction solutions including combined heat and power (CHP). Distributed generation using advanced reciprocating engines, gas turbines, microturbines and fuel cells has been shown to reduce greenhouse gases (GHG) compared to the U.S. electrical generation mix due to the use of natural gas and high electrical generation efficiencies of these prime movers. Many of these prime movers are also well suited for use in CHP systems which recover heat generated during combustion or energy conversion. CHP increases the total efficiency of the prime mover by recovering waste heat for generating electricity, replacing process steam, hot water for buildings or even cooling via absorption chilling. The increased efficiency of CHP systems further reduces GHG emissions compared to systems which do not recover waste thermal energy. Current GHG mandates within the U.S Federal sector and looming GHG legislation for states puts an emphasis on understanding the GHG reduction potential of such systems. This study compares the GHG savings from various state-of-the- art prime movers. GHG reductions from commercially available prime movers in the 1-5 MW class including, various industrial fuel cells, large and small gas turbines, micro turbines and reciprocating gas engines with and without CHP are compared to centralized electricity generation including the U.S. mix and the best available technology with natural gas combined cycle power plants. The findings show significant GHG saving potential with the use of CHP. Also provided is an exploration of the accounting methodology for GHG reductions with CHP and the sensitivity of such analyses to electrical generation efficiency, emissions factors and most importantly recoverable heat and thermal recovery efficiency from the CHP system.

Curran, Scott [ORNL; Theiss, Timothy J [ORNL; Bunce, Michael [ORNL

2012-01-01T23:59:59.000Z

383

Optimizing Geographic Allotment of Photovoltaic Capacity in a Distributed Generation Setting: Preprint  

SciTech Connect

A multi-objective optimization was performed to allocate 2MW of PV among four candidate sites on the island of Lanai such that energy was maximized and variability in the form of ramp rates was minimized. This resulted in an optimal solution set which provides a range of geographic allotment alternatives for the fixed PV capacity. Within the optimal set, a tradeoff between energy produced and variability experienced was found, whereby a decrease in variability always necessitates a simultaneous decrease in energy. A design point within the optimal set was selected for study which decreased extreme ramp rates by over 50% while only decreasing annual energy generation by 3% over the maximum generation allocation. To quantify the allotment mix selected, a metric was developed, called the ramp ratio, which compares ramping magnitude when all capacity is allotted to a single location to the aggregate ramping magnitude in a distributed scenario. The ramp ratio quantifies simultaneously how much smoothing a distributed scenario would experience over single site allotment and how much a single site is being under-utilized for its ability to reduce aggregate variability. This paper creates a framework for use by cities and municipal utilities to reduce variability impacts while planning for high penetration of PV on the distribution grid.

Urquhart, B.; Sengupta, M.; Keller, J.

2012-09-01T23:59:59.000Z

384

CDFTBL: A statistical program for generating cumulative distribution functions from data  

SciTech Connect

This document describes the theory underlying the CDFTBL code and gives details for using the code. The CDFTBL code provides an automated tool for generating a statistical cumulative distribution function that describes a set of field data. The cumulative distribution function is written in the form of a table of probabilities, which can be used in a Monte Carlo computer code. A a specific application, CDFTBL can be used to analyze field data collected for parameters required by the PORMC computer code. Section 2.0 discusses the mathematical basis of the code. Section 3.0 discusses the code structure. Section 4.0 describes the free-format input command language, while Section 5.0 describes in detail the commands to run the program. Section 6.0 provides example program runs, and Section 7.0 provides references. The Appendix provides a program source listing. 11 refs., 2 figs., 19 tabs.

Eslinger, P.W. (Pacific Northwest Lab., Richland, WA (United States))

1991-06-01T23:59:59.000Z

385

Laboratories for the 21st Century: Best Practices (Brochure): Onsite Distributed Generation Systems For Laboratories  

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

L L a b o r a t o r i e s f o r t h e 2 1 s t C e n t u r y : B e s t P r a c t i c e s This combined heat and power system at the Bristol-Myers Squibb laboratory in Wallingford, Connecticut, could meet 100% of the lab's power requirement, if necessary. Bernard Blesinger / PIX 12552 ONSITE DISTRIBUTED GENERATION SYSTEMS FOR LABORATORIES Introduction Laboratories have unique requirements for lighting, ventilation, and scientific equipment with each requiring a considerable amount of energy. The reliability of that energy is very important. Laboratories must be able to conduct research without power interruptions, which can damage both equipment and experiments. Generating power and heat on site is one good way to enhance energy reliability, improve fuel utilization efficiency, reduce utility costs,

386

Decoding the `Nature Encoded' Messages for Distributed Energy Generation Control in Microgrid  

E-Print Network (OSTI)

The communication for the control of distributed energy generation (DEG) in microgrid is discussed. Due to the requirement of realtime transmission, weak or no explicit channel coding is used for the message of system state. To protect the reliability of the uncoded or weakly encoded messages, the system dynamics are considered as a `nature encoding' similar to convolution code, due to its redundancy in time. For systems with or without explicit channel coding, two decoding procedures based on Kalman filtering and Pearl's Belief Propagation, in a similar manner to Turbo processing in traditional data communication systems, are proposed. Numerical simulations have demonstrated the validity of the schemes, using a linear model of electric generator dynamic system.

Gong, Shuping; Lai, Lifeng; Qiu, Robert C

2010-01-01T23:59:59.000Z

387

Problems of Security Proofs and Fundamental Limit on Key Generation Rate in Quantum Key Distribution  

E-Print Network (OSTI)

It is pointed out that treatments of the error correcting code in current quantum key distribution protocols of the BB84 type are not correct under joint attack, and the general interpretation of the trace distance security criterion is also incorrect. With correct interpretation of the criterion as well as a correct treatment of the error correcting code and privacy amplification code, it is shown that even for an ideal system under just collective attack, the maximum tolerable quantum bit error rate is about 1.5% and a net key cannot actually be generated with practical error correcting codes even at such low rates, contrary to claims in the literature.

Horace P. Yuen

2012-05-16T23:59:59.000Z

388

Development, Demonstration, and Field Testing of Enterprise-Wide Distributed Generation Energy Management System: Final Report  

DOE Green Energy (OSTI)

This report details progress on subcontract NAD-1-30605-1 between the National Renewable Energy Laboratory and RealEnergy (RE), the purpose of which is to describe RE's approach to the challenges it faces in the implementation of a nationwide fleet of clean cogeneration systems to serve contemporary energy markets. The Phase 2 report covers: utility tariff risk and its impact on market development; the effect on incentives on distributed energy markets; the regulatory effectiveness of interconnection in California; a survey of practical field interconnection issues; trend analysis for on-site generation; performance of dispatch systems; and information design hierarchy for combined heat and power.

Greenberg, S.; Cooley, C.

2005-01-01T23:59:59.000Z

389

Onsite Distributed Generation Systems For Laboratories, Laboratories for the 21st Century: Best Practices (Brochure)  

DOE Green Energy (OSTI)

This guide provides general information on implementing onsite distributed generation systems in laboratory environments. Specific technology applications, general performance information, and cost data are provided to educate and encourage laboratory energy managers to consider onsite power generation or combined heat and power (CHP) systems for their facilities. After conducting an initial screening, energy managers are encouraged to conduct a detailed feasibility study with actual cost and performance data for technologies that look promising. Onsite distributed generation systems are small, modular, decentralized, grid-connected, or off-grid energy systems. These systems are located at or near the place where the energy is used. These systems are also known as distributed energy or distributed power systems. DG technologies are generally considered those that produce less than 20 megawatts (MW) of power. A number of technologies can be applied as effective onsite DG systems, including: (1) Diesel, natural gas, and dual-fuel reciprocating engines; (2) Combustion turbines and steam turbines; (3) Fuel cells; (4) Biomass heating; (5) Biomass combined heat and power; (6) Photovoltaics; and (7) Wind turbines. These systems can provide a number of potential benefits to an individual laboratory facility or campus, including: (1) High-quality, reliable, and potentially dispatchable power; (2) Low-cost energy and long-term utility cost assurance, especially where electricity and/or fuel costs are high; (3) Significantly reduced greenhouse gas (GHG) emissions. Typical CHP plants reduce onsite GHG by 40 to 60 percent; (4) Peak demand shaving where demand costs are high; (5) CHP where thermal energy can be used in addition to electricity; (6) The ability to meet standby power needs, especially where utility-supplied power is interrupted frequently or for long periods and where standby power is required for safety or emergencies; and (7) Use for standalone or off-grid systems where extending the grid is too expensive or impractical. Because they are installed close to the load, DG systems avoid some of the disadvantages of large, central power plants, such as transmission and distribution losses over long electric lines.

Not Available

2011-09-01T23:59:59.000Z

390

Steam Generator Management Program: Thermal-Hydraulic and Flow-Induced Vibration Analyses of a Representative Model F Steam Generato r  

Science Conference Proceedings (OSTI)

During the Fall 2006 refueling outage of Vogtle 1, circumferential outside-diameter stress corrosion cracking (ODSCC) indications were observed in Model F steam generator tubes on the hot leg near the top of the tubesheet at low-row number, high-column number tubes. Additional ODSCC indications were observed in the same region during the Spring 2008 outage. All tubes with cracklike indications were plugged and stabilized. This report summarizes the comprehensive thermal-hydraulic and flow-induced vibrati...

2009-06-25T23:59:59.000Z

391

Reliable, Low-Cost Distributed Generator/Utility System Interconnect: Final Subcontract Report, November 2001-March 2004  

Science Conference Proceedings (OSTI)

This report summarizes the detailed study and development of new GE anti-islanding controls for two classes of distributed generation. One is inverter-interfaced, while the other is synchronous machine interfaced.

Ye, Z.; Walling, R.; Miller, N.; Du, P.; Nelson, K.; Li, L.; Zhou, R.; Garces, L.; Dame, M.

2006-03-01T23:59:59.000Z

392

Modeling, control, and power management of a power electrical system including two distributed generators based on fuel cell and supercapacitor  

Science Conference Proceedings (OSTI)

This paper focuses on Distributed Generator (DG) integration in Power Electrical System (PES) for dispersed nodes. The main objective of the DG use can be classified into two aspects: a load following service and ancillary service systems. In this study

2013-01-01T23:59:59.000Z

393

Study of the longitudinal distribution of power generated in a random distributed feedback Raman fibre laser with unidirectional pumping  

SciTech Connect

The longitudinal distribution of the Stokes-component power in a Raman fibre laser with a random distributed feedback and unidirectional pumping is measured. The fibre parameters (linear loss and Rayleigh backscattering coefficient) are calculated based on the distributions obtained. A numerical model is developed to describe the lasing power distribution. The simulation results are in good agreement with the experimental data. (optical fibres, lasers and amplifiers. properties and applications)

Churkin, D V; El-Taher, A E; Vatnik, I D; Babin, Sergei A

2012-09-30T23:59:59.000Z

394

A Case Study on Anti-islanding Protectionof Distributed Generation Using Autoground: Hydro-Qubec Smart Grid Demonstration  

Science Conference Proceedings (OSTI)

This case study presents results of Hydro-Qubecs construction and testing of an anti-islanding approach, referred to as an autoground. The premise of the approach is to allow the distributed generation system time to detect the islanding situation. This is done using a passive approach up until the moment just prior to reclosing of the substation breaker, at which point the autoground momentarily short circuits the feeder, forcing any remaining distributed generation resources to ...

2013-05-29T23:59:59.000Z

395

Finding minimum representative pattern sets  

Science Conference Proceedings (OSTI)

Frequent pattern mining often produces an enormous number of frequent patterns, which imposes a great challenge on understanding and further analysis of the generated patterns. This calls for finding a small number of representative patterns to best ... Keywords: frequent pattern summarization, representative patterns

Guimei Liu; Haojun Zhang; Limsoon Wong

2012-08-01T23:59:59.000Z

396

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

2001. Firestone, R. Distributed Energy Resources Customeret. al. Gas-Fired Distributed Energy Resource TechnologyFramework and Tools for Distributed Energy Resources, LBNL-

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

397

The Effects of Electricity Tariff Structure on Distributed Generation Adoption in New York State  

E-Print Network (OSTI)

The Effects of Electricity Tariff Structure on DistributedThe Effects of Electricity Tariff Structure on DistributedThe Effects of Electricity Tariff Structure on Distributed

Firestone, Ryan; Marnay, Chris

2005-01-01T23:59:59.000Z

398

Facility Representative Program: 2000 Facility Representative Workshop  

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

0 Facility Representative Workshop 0 Facility Representative Workshop May 16-18, 2000 Las Vegas, NV Facility Rep of the Year Award | Attendees list | Summary Report [PDF] WORKSHOP AGENDA Tuesday, May 16, 2000 Theme for Day 1: Sustaining the Success of the Facility Representative Program 8:00 a.m. - Opening Remarks - Joe Arango, Facility Representative Program Manager 8:05 a.m. - Welcome - Kenneth Powers, Deputy Manager Nevada Operations Office 8:15 a.m. - Deputy Secretary Remarks - T. J. Glauthier, Deputy Secretary of Energy 8:30 a.m. - Keynote Address - Jerry Lyle, Assistant Manager for Environmental Management, Idaho Operations Office 9:00 a.m. - Facility Representative of the Year Presentation - Mark B. Whitaker, Departmental Representative 9:30 a.m. - Break 9:50 a.m. - Program Results and Goals - Joe Arango, Facility Representative Program Manager

399

Abstract--An optimization model that incorporates demand in the paradigm of smart grids and distributed generation is  

E-Print Network (OSTI)

, Maximum expected demand in the optimization period Cost associated to energy generated by demand from1 Abstract--An optimization model that incorporates demand in the paradigm of smart grids and distributed generation is formulated. The objective is to transform the demand into an active agent that helps

Catholic University of Chile (Universidad Católica de Chile)

400

Distributed Generation Study/10 West 66th Street Corp | Open Energy  

Open Energy Info (EERE)

10 West 66th Street Corp 10 West 66th Street Corp < Distributed Generation Study Jump to: navigation, search Study Location New York, New York Site Description Residential-Multifamily-Single Building Study Type Long-term Monitoring Technology Microturbine Prime Mover Ingersoll Rand I-R PowerWorks 70 Heat Recovery Systems Built-in Fuel Natural Gas System Installer DSM Engineering System Enclosure Indoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 70 kW0.07 MW 70,000 W 70,000,000 mW 7.0e-5 GW 7.0e-8 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 300000 Cooling Capacity (Refrig/Tons) Origin of Controller 3rd Party Off-the-Shelf Component Integration Customer Assembled Start Date 2005/11/17 Monitoring Termination Date 1969/12/31

Note: This page contains sample records for the topic "distributed generation represents" 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

Peculiarities of spike multimode generation of a superradiant distributed feedback laser  

Science Conference Proceedings (OSTI)

Using one-dimensional semiclassical Maxwell - Bloch equations with account for the coherent polarisation dynamics, we have studied spike generation regimes of a superradiant distributed feedback laser in the case of inhomogeneous broadening of the spectral line of an active medium. By analysing the dynamic spectra of inversion of the active medium and laser radiation, we have revealed the relationship of individual spikes of radiation and their modulation with specific parts in the spectral line of the active medium and mode beatings. It has been shown that the broadening and shift of the lasing spectrum with respect to the initial electromagnetic Bragg-cavity modes is accompanied by a strong spectral gradient of inversion that is typical of the superradiant regimes. (control of radiation parameters)

Kocharovskaya, E R; Ginzburg, N S; Sergeev, A S [Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod (Russian Federation)

2011-08-31T23:59:59.000Z

402

Commercialization of a 2.5kW Utility Interactive Inverter for Distributed Generation  

SciTech Connect

Through this project, Advanced Energy Conversion (AEC) has developed, tested, refined and is preparing to commercialize a 2.5kW utility-interactive inverter system for distributed generation. The inverter technology embodies zero-voltage switching technology that will ultimately yield a system that is smaller, less expensive and more efficient than existing commercial technologies. This program has focused on commercial success through careful synthesis of technology, market-focus and business development. AEC was the primary participant. AEC is utilizing contract manufacturers in the early stages of production, allowing its technical staff to focus on quality control issues and product enhancements. The objective of this project was to bring the AEC inverter technology from its current pre-production state to a commercial product. Federal funds have been used to build and test production-intent inverters, support the implementation of the commercialization plan and bring the product to the point of UL certification.

Torrey, David A.

2006-05-26T23:59:59.000Z

403

Distributed Generation Study/Aisin Seiki G60 at Hooligans Bar and Grille |  

Open Energy Info (EERE)

Aisin Seiki G60 at Hooligans Bar and Grille Aisin Seiki G60 at Hooligans Bar and Grille < Distributed Generation Study Jump to: navigation, search Study Location Liverpool, New York Site Description Commercial-Restaurant Study Type Field Test Technology Internal Combustion Engine Prime Mover Aisin Seiki G60 Heat Recovery Systems Built-in Fuel Natural Gas System Installer ECO Technical Solutions System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 6 kW0.006 MW 6,000 W 6,000,000 mW 6.0e-6 GW 6.0e-9 TW Nominal Voltage (V) 240 Heat Recovery Rating (BTU/hr) 46105 Cooling Capacity (Refrig/Tons) Origin of Controller Manufacturer-Integrated Component Integration Customer Assembled Start Date 2005/07/10 Monitoring Termination Date 2005/07/21

404

Modeling of utility distribution feeder in OpenDSS with steady state impact analysis of distributed generation.  

E-Print Network (OSTI)

??With the deregulation of the electric power industry and the advancement of new technologies, the attention of the utilities has been drawn towards adopting Distributed (more)

Ramachandran, Vaidyanath.

2011-01-01T23:59:59.000Z

405

PV Ramping in a Distributed Generation Environment: A Study Using Solar Measurements; Preprint  

DOE Green Energy (OSTI)

Variability in Photovoltaic (PV) generation resulting from variability in the solar radiation over the PV arrays is a topic of continuing concern for those involved with integrating renewables onto existing electrical grids. The island of Lanai, Hawaii is an extreme example of the challenges that integrators will face due to the fact that it is a small standalone grid. One way to study this problem is to take high-resolution solar measurements in multiple locations and model simultaneous PV production for various sizes at those locations. The National Renewable Energy Laboratory (NREL) collected high-resolution solar data at four locations on the island where proposed PV plants will be deployed in the near future. This data set provides unique insight into how the solar radiation may vary between points that are proximal in distance, but diverse in weather, due to the formation of orographic clouds in the center of the island. Using information about each proposed PV plant size, power output was created at high resolution. The team analyzed this output to understand power production ramps at individual locations and the effects of aggregating the production from all four locations. Hawaii is a unique environment, with extremely variable events occurring on a daily basis. This study provided an excellent opportunity for understanding potential worst-case scenarios for PV ramping. This paper provides an introduction to the datasets that NREL collected over a year and a comprehensive analysis of PV variability in a distributed generation scenario.

Sengupta, M.; Keller, J.

2012-06-01T23:59:59.000Z

406

Facility Representative Program: 2012 Facility Representative...  

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

18, 2012 Las Vegas, NV Agenda | Presentations | SSO Annual Award | Pictures | Summary Report 2011 Facility Representative of the Year Award 2011 WINNER: Congratulations to Bradley...

407

Facility Representative Program: 2010 Facility Representative Workshop  

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

10 Facility Representative Workshop 10 Facility Representative Workshop May 12 - 13, 2010 Las Vegas, NV Facility Rep of the Year Award | Attendees | Summary Report Workshop Agenda and Presentations Day 1: Wednesday, May 12, 2010 8:00 a.m. Opening Remarks James Heffner, Facility Representative Program Manager Earl Hughes, Safety System Oversight Program Manager Office of Nuclear Safety Policy and Assistance Office of Health, Safety and Security 8:15 a.m. Welcome from the Nevada Site Office John Mallin, Deputy Assistant Manager for Site Operations Nevada Site Office 8:30 a.m. Workshop Keynote Address Todd Lapointe Chief of Nuclear Safety Central Technical Authority Staff 9:15 a.m. Facility Representative and Safety System Oversight Award Ceremony James Heffner, Facility Representative Program Manager

408

Facility Representative Program: 2007 Facility Representative Workshop  

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

7 Facility Representative Workshop 7 Facility Representative Workshop May 15 - 17, 2007 Las Vegas, NV Facility Rep of the Year Award | Attendees list | Summary Report [PDF] WORKSHOP AGENDA Final Day 1: Tuesday, May 15, 2007 8:00 a.m. Opening Remarks Joanne Lorence, Facility Representative Program Manager 8:15 a.m. Welcome from the Nevada Site Office Gerald Talbot, Manager, Nevada Site Office 8:30 a.m. Videotaped Remarks from the Deputy Secretary The Honorable Clay Sell, Deputy Secretary of Energy 8:45 a.m. Keynote Address - Safety Oversight Perspective and Expectations Glenn Podonsky, Chief Health, Safety and Security Officer, Office of Health, Safety and Security 9:10 a.m. Facility Representative of the Year Presentation Mark B. Whitaker, Jr., Departmental Representative to the Defense Nuclear Facilities Safety Board,

409

Facility Representative Program: 2003 Facility Representative Workshop  

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

3 Facility Representative Workshop 3 Facility Representative Workshop May 13 - 15, 2003 Las Vegas, NV Facility Rep of the Year Award | Attendees list | Summary Report [PDF] WORKSHOP AGENDA Day 1: Tuesday, May 13, 2003 Theme: Program Successes and Challenges 8:00 a.m. John Evans, Facility Representative Program Manager 8:15 a.m. Welcome Kathleen Carlson Manager, Nevada Site Office 8:30 a.m. Keynote Address Savannah River Site and Facility Reps - A Shared History and Common Future Jeffrey M. Allison Manager, Savannah River Operations Office 9:00 a.m. Videotaped Remarks from the Deputy Secretary Kyle E. McSlarrow, Deputy Secretary of Energy 9:10 a.m. Facility Representative of the Year Presentation Mark B. Whitaker, Jr., Departmental Representative to the Defense Nuclear Facilities Safety Board

410

Facility Representative Program: 2001 Facility Representative Workshop  

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

1 Facility Representative Workshop 1 Facility Representative Workshop May 15 - 17, 2001 Las Vegas, NV Facility Rep of the Year Award | Attendees list | Summary Report [PDF] WORKSHOP AGENDA Day 1: Tuesday, May 15, 2001 Theme: Program Successes and Challenges 8:00 a.m. - Logistics Announcements & Opening Remarks - Joe Arango, Facility Representative Program Manager 8:15 a.m. - Welcome - Debbie Monette, Assistant Manager for National Security, Nevada Operations Office 8:30 a.m. - Keynote Address - Ralph Erickson, National Nuclear Security Administration 9:00 a.m.- DOE Facility Representative of the Year Presentation - Mark B. Whitaker, Jr., Departmental Representative to the Defense Nuclear Facilities Safety Board 9:30 a.m. - Break 9:50 a.m. - Program Summary - Joe Arango 10:10 a.m. - Management Panel/Questions and Answers

411

Facility Representative Program: Facility Representative Program Sponsors  

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

Facility Representative Program Sponsors Facility Representative Program Sponsors There are 29 Facility Representative Program Sponsors Office Name Title E-Mail Phone ASO Larry Pendexter ES&H Div Dir (Argonne) larry.pendexter@ch.doe.gov 630-252-1485 BHSO Bob Desmarais Operations Management Division Director desmarai@bnl.gov 631-344-5434 CBFO Glenn Gamlin Facility Representative Supervisor glenn.gamlin@wipp.ws 575-234-8136 CBFO Casey Gadbury Operations Manager casey.gadbury@wipp.ws 575-234-7372 FSO Mark Bollinger Deputy Manager Mark.Bollinger@ch.doe.gov 630-840-8130 FSO John Scott FR Team Lead john.scott@ch.doe.gov 630-840-2250 HS-30 James O'Brien Director, Office of Nuclear Safety James.O'Brien@hq.doe.gov 301-903-1408 HS-32 Earl Hughes Facility Representative Program Manager Earl.Hughes@hq.doe.gov 202-586-0065

412

Facility Representative Program: 2000 Facility Representative...  

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

- Break 10:00 a.m. - Making Your Observations CountLeading Indicators - Mike Weis, Rocky Flats Field Office 10:45 a.m. - Facility Representative PanelQuestions and Answers (Ben...

413

Distributed Generation Study/615 kW Waukesha Packaged System | Open Energy  

Open Energy Info (EERE)

kW Waukesha Packaged System kW Waukesha Packaged System < Distributed Generation Study Jump to: navigation, search Study Location Des Plaines, Illinois Site Description Testing Laboratory Study Type Laboratory Test Technology Internal Combustion Engine Prime Mover Waukesha VGF 36GLD Heat Recovery Systems Sondex PHE-Type SL140-TM-EE-190, Sondex PHE-Type SL140-TM-EE-150, Cain UTR1-810A17.5SSP Fuel Natural Gas System Installer GTI System Enclosure Outdoor System Application Combined Heat and Power Number of Prime Movers 1 Stand-alone Capability None Power Rating 615 kW0.615 MW 615,000 W 615,000,000 mW 6.15e-4 GW 6.15e-7 TW Nominal Voltage (V) 480 Heat Recovery Rating (BTU/hr) 2500000 Cooling Capacity (Refrig/Tons) 90 Origin of Controller 3rd Party Off-the-Shelf Component Integration Factory Integrated

414

Buildings Energy Data Book: 6.2 Electricity Generation, Transmission, and Distribution  

Buildings Energy Data Book (EERE)

7 7 Characteristics of New and Stock Generating Capacities, by Plant Type Total Capital Costs Size Overnight Costs (2) of Typical New Plant New Plant Type (MW) (2010 $/kW) ($2010 million) Scrubbed Coal 1300 2809 3652 Integrated Coal-Gasification Combined Cycle (IGCC) 1200 3182 3818 IGCC w/Carbon Sequestration 520 5287 2749 Conv. Gas/Oil Combined Cycle 540 967 522 Adv. Gas/Oil Combined Cycle 400 991 396 Conv. Combustion Turbine 85 961 82 Adv. Combustion Turbine 210 658 138 Fuel Cell 10 6752 68 Advanced Nuclear 2236 5275 11795 Municipal Solid Waste 50 8237 412 Conventional Hydropower (3) 500 2221 1111 Wind 100 2409 241 Stock Plant Type 2010 2015 2020 2025 2030 2035 Fossil Fuel Steam Heat Rate (Btu/kWh) Nuclear Energy Heat Rate (Btu/kWh) Note(s): Source(s): 1) Plant use of electricity is included in heat rate calculations; however, transmission and distribution losses of the electric grid are excluded.

415

THE NEXT GENERATION ATLAS OF QUASAR SPECTRAL ENERGY DISTRIBUTIONS FROM RADIO TO X-RAYS  

SciTech Connect

We have produced the next generation of quasar spectral energy distributions (SEDs), essentially updating the work of Elvis et al. by using high-quality data obtained with several space- and ground-based telescopes, including NASA's Great Observatories. We present an atlas of SEDs of 85 optically bright, non-blazar quasars over the electromagnetic spectrum from radio to X-rays. The heterogeneous sample includes 27 radio-quiet and 58 radio-loud quasars. Most objects have quasi-simultaneous ultraviolet-optical spectroscopic data, supplemented with some far-ultraviolet spectra, and more than half also have Spitzer mid-infrared Infrared Spectrograph spectra. The X-ray spectral parameters are collected from the literature where available. The radio, far-infrared, and near-infrared photometric data are also obtained from either the literature or new observations. We construct composite SEDs for radio-loud and radio-quiet objects and compare these to those of Elvis et al., finding that ours have similar overall shapes, but our improved spectral resolution reveals more detailed features, especially in the mid- and near-infrared.

Shang Zhaohui; Li Jun; Xie Yanxia [Department of Physics, Tianjin Normal University, Tianjin 300387 (China); Brotherton, Michael S.; Cales, Sabrina L.; Dale, Daniel A.; Runnoe, Jessie C.; Kelly, Benjamin J. [Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071 (United States); Wills, Beverley J.; Wills, D. [Department of Astronomy, University of Texas at Austin, 1 University Station, C1400 Austin, TX 78712 (United States); Green, Richard F. [Large Binocular Telescope Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Nemmen, Rodrigo S. [NASA/Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Gallagher, Sarah C. [Department of Physics and Astronomy, University of Western Ontario, London, ON N6A 3K7 (Canada); Ganguly, Rajib [Department of Computer Science, Engineering, and Physics, University of Michigan-Flint, 213 Murchie Science Building, 303 Kearsley Street, Flint, MI 48502 (United States); Hines, Dean C. [Space Science Institute, 4750 Walnut Street, Suite 205, Boulder, CO 80301 (United States); Kriss, Gerard A. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Tang, Baitian, E-mail: zshang@gmail.com [Department of Physics, 1245 Webster Hall, Washington State University, Pullman, WA 99164-2814 (United States)

2011-09-01T23:59:59.000Z

416

The Potential for Distributed Generation in Japanese Prototype Buildings: A DER-CAM Analysis of  

E-Print Network (OSTI)

, wood residues, biogas or spent pulping liquor as fuels. Technologies include gas turbine generators

417

Facility Representative Program: 2004 Facility Representative Workshop  

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

4 Facility Representative Workshop 4 Facility Representative Workshop May 18 - 20, 2004 Las Vegas, NV Facility Rep of the Year Award | Attendees list | Summary Report [PDF] WORKSHOP AGENDA Final Day 1: Tuesday, May 18, 2004 Theme: Program Successes and Challenges 8:00 a.m. Opening Remarks John Evans, Facility Representative Program Manager 8:15 a.m. Welcome Kathy Carlson, Nevada Site Office Manager 8:30 a.m. Videotaped Remarks from the Deputy Secretary Kyle E. McSlarrow, Deputy Secretary of Energy Deputy Secretary's Remarks 8:40 a.m. Keynote Address - NNSA Evaluation of Columbia Accident Investigation Board Report Brigadier General Ronald J. Haeckel, Principal Assistant Deputy Administrator for Military Applications, NNSA Other Information: NASA’S Columbia Accident Investigation Board Report

418

Facility Representative Program: 2006 Facility Representative Workshop  

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

6 Facility Representative Workshop 6 Facility Representative Workshop May 16 - 19, 2006 Knoxville, Tennessee Facility Rep of the Year Award | Attendees list | Summary Report [PDF] WORKSHOP AGENDA Final To view Pictures, scroll the mouse over the Picture icon To view Presentations, Picture Slideshows and Video, click on the icon Day 1: Tuesday, May 16, 2006 8:00 a.m. Opening Remarks John Evans, Facility Representative Program Manager 8:15 a.m. Welcome from Oak Ridge Office Gerald Boyd, Manager, Oak Ridge Office 8:25 a.m. Welcome from Y-12 Site Office Theodore Sherry, Manager, Y-12 Site Office 8:35 a.m. Videotaped Remarks from the Deputy Secretary The Honorable Clay Sell, Deputy Secretary of Energy 8:40 a.m. Keynote Address - Safety Oversight at Environmental Management Activities Dr. Inés Triay, Chief Operating Officer, Office of Environmental Management

419

The Probability Distribution of Wind Power From a Dispersed Array of Wind Turbine Generators  

Science Conference Proceedings (OSTI)

A method is presented for estimating the probability distribution of wind power from a dispersed array of wind turbine sites where the correlation between wind speeds at distinct sites is less than unity. The distribution is obtained from a model ...

John Carlin; John Haslett

1982-03-01T23:59:59.000Z

420

Abstract--Application of individual distributed generators can cause as many problems as it may solve. A better way  

E-Print Network (OSTI)

's and 100's of kW). The goal of this work is to accelerate realization of the many benefits offered a wide range of prime mover technologies, such as internal combustion (IC) engines, gas turbines, microturbines, photovoltaic, fuel cells and wind-power. Penetration of distributed generation across the US has

Note: This page contains sample records for the topic "distributed generation represents" 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

PhotoVoltaic distributed generation for Lanai power grid real-time simulation and control integration scenario.  

Science Conference Proceedings (OSTI)

This paper discusses the modeling, analysis, and testing in a real-time simulation environment of the Lanai power grid system for the integration and control of PhotoVoltaic (PV) distributed generation. The Lanai Island in Hawaii is part of the Hawaii Clean Energy Initiative (HCEI) to transition to 30% renewable green energy penetration by 2030. In Lanai the primary loads come from two Castle and Cook Resorts, in addition to residential needs. The total peak load profile is 12470 V, 5.5 MW. Currently there are several diesel generators that meet these loading requirements. As part of the HCEI, Lanai has initially installed 1.2 MW of PV generation. The goal of this study has been to evaluate the impact of the PV with respect to the conventional carbon-based diesel generation in real time simulation. For intermittent PV distributed generation, the overall stability and transient responses are investigated. A simple Lanai 'like' model has been developed in the Matlab/Simulink environment (see Fig. 1) and to accommodate real-time simulation of the hybrid power grid system the Opal-RT Technologies RT-Lab environment is used. The diesel generators have been modelled using the SimPowerSystems toolbox swing equations and a custom Simulink module has been developed for the High level PV generation. All of the loads have been characterized primarily as distribution lines with series resistive load banks with one VAR load bank. Three-phase faults are implemented for each bus. Both conventional and advanced control architectures will be used to evaluate the integration of the PV onto the current power grid system. The baseline numerical results include the stable performance of the power grid during varying cloud cover (PV generation ramping up/down) scenarios. The importance of assessing the real-time scenario is included.

Robinett, Rush D., III; Kukolich, Keith (Opal RT Technologies, Montreal, Quebec, Canada); Wilson, David Gerald; Schenkman, Benjamin L.

2010-06-01T23:59:59.000Z

422

Integration of Renewables Via Demand Management: Highly Dispatchable and Distributed Demand Response for the Integration of Distributed Generation  

Science Conference Proceedings (OSTI)

GENI Project: AutoGrid, in conjunction with Lawrence Berkeley National Laboratory and Columbia University, will design and demonstrate automated control software that helps manage real-time demand for energy across the electric grid. Known as the Demand Response Optimization and Management System - Real-Time (DROMS-RT), the software will enable personalized price signal to be sent to millions of customers in extremely short timeframesincentivizing them to alter their electricity use in response to grid conditions. This will help grid operators better manage unpredictable demand and supply fluctuations in short time-scales making the power generation process more efficient and cost effective for both suppliers and consumers. DROMS-RT is expected to provide a 90% reduction in the cost of operating demand response and dynamic pricing Projects in the U.S.

None

2012-02-11T23:59:59.000Z

423

Competition and fragmentation: a simple model generating lognormal-like distributions  

E-Print Network (OSTI)

The current distribution of language size in terms of speaker population is generally described using a lognormal distribution. Analyzing the original real data we show how the double-Pareto lognormal distribution can give an alternative fit that indicates the existence of a power law tail. A simple model, based on competition and fragmentation, reproduces such behavior and is able to well approximate real data.

Schwmmle, V; Brigatti, E; Tchumatchenko, T

2008-01-01T23:59:59.000Z

424

Control of z-source inverter topologies for distributed generation systems.  

E-Print Network (OSTI)

??In meeting ever increasing energy demand, it is important to do continuous research in energy sources, their efficient use and distribution of energy. Due to (more)

Chandana Jayampathi Gajanayake.

2009-01-01T23:59:59.000Z

425

Investigation of anti-islanding schemes for utility interconnection of distributed fuel cell powered generations  

E-Print Network (OSTI)

The rapid emergence of distributed fuel cell powered generations (DFPGs) operating in parallel with utility has brought a number of technical concerns as more DFPGs are connected to utility grid. One of the most challenging problems is known as islanding phenomenon. This situation occurs when a network is disconnected from utility grid and is energized by local DFPGs. It can possibly result in injury to utility personnel arriving to service isolated feeders, equipment damage, and system malfunction. In response to the concern, this dissertation aims to develop a robust anti-islanding algorithm for utility interconnection of DFPGs. In the first part, digital signal processor (DSP) controlled power electronic converters for utility interconnection of DFPGs are developed. Current control in a direct-quadrature (dq) synchronous frame is proposed. The real and reactive power is controlled by regulating inverter currents. The proposed digital current control in a synchronous frame significantly enhances the performance of DFPGs. In the second part, the robust anti-islanding algorithm for utility interconnection of a DFPG is developed. The power control algorithm is proposed based on analysis of a real and reactive power mismatch. It continuously perturbs (±5%) the reactive power supplied by the DFPG while monitoring the voltage and frequency. If islanding were to occur, a measurable frequency deviation would take place, upon which the real power of the DFPG is further reduced to 80%; a drop in voltage positively confirms islanding. This method is shown to be robust and reliable. In the third part, an improved anti-islanding algorithm for utility interconnection of multiple DFPGs is presented. The cross correlation method is proposed and implemented in conjunction with the power control algorithm. It calculates the cross correlation index of a rate of change of the frequency deviation and (±5%) the reactive power. If this index increases above 50%, the chance of islanding is high. The algorithm initiates (±10%) the reactive power and continues to calculate the correlation index. If the index exceeds 80%, islanding is now confirmed. The proposed method is robust and capable of detecting islanding in the presence of several DFPGs independently operating. Analysis, simulation and experimental results are presented and discussed.

Jeraputra, Chuttchaval

2004-12-01T23:59:59.000Z

426

Energy Storage Solutions for Wind Generator Connected Distribution Systems in Rural Ontario.  

E-Print Network (OSTI)

??Environmental awareness and uncertainty about continued supply of fossil fuel has given rise to the renewable energy movement. Wind based power generation has been at (more)

Rahman, Mohammed Nahid

2009-01-01T23:59:59.000Z

427

Voltage control scheme in distribution network with double feed induction generator wind farm  

Science Conference Proceedings (OSTI)

This paper presents the particle swarm optimization (PSO) for reactive power and voltage control (Volt/Var Control) in distribution system considering DFIG wind farm. In this paper, the reactive power output of DFIG wind farm has been considered as the ... Keywords: DFIG wind turbine, Volt/Var control, distribution network, optimization, particle swarm, wind farm

Jingjing Zhao; Xin Li; Jutao Hao

2009-08-01T23:59:59.000Z

428

Comparison of Distributed Generation Technology Options, 250-400 kW  

Science Conference Proceedings (OSTI)

The Los Angeles County Sanitation Districts own and operate biogas-fueled generating plants at a number of sites. Included in their portfolio are a 250 kW carbonate fuel cell, a 250 kW microturbine, a 400 kW internal combustion engine, and a cluster of ten (10) 30-kW microturbines. This afforded a unique opportunity to compare the power generation technologies. All of these systems use bio-gas that would otherwise be flared and generate power in parallel with the local utility to offset site electrical p...

2006-03-09T23:59:59.000Z

429

Property Representatives Lists- HQ  

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

These are the current lists of Headquarters Property Representatives. If you have any questions please contact:Ellen Hall, Office of Logistics Operations, (301) 903-2613.

430

Spectral Distribution of Energy Dissipation of Wind-Generated Waves due to Dominant Wave Breaking  

Science Conference Proceedings (OSTI)

This paper considers an experimental attempt to estimate the spectral distribution of the dissipation due to breaking of dominant waves. A field wave record with an approximately 50% dominant-breaking rate was analyzed. Segments of the record, ...

Ian R. Young; Alexander V. Babanin

2006-03-01T23:59:59.000Z

431

Regulatory Considerations for Developing Distributed Generation Projects Webinar May 23, 2012  

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

Jay Morrison Jay Morrison Vice President, Regulatory Issues National Rural Electric Cooperative Association jay.morrison@nreca.coop Susan Kelly General Counsel, Senior Vice President American Public Power Association skelly@publicpower.org  DG penetration rates are increasing rapidly  Careful selection of business model can maximize value for all participants by:  Maximizing access to government incentives  Maximize access to all available value streams for the developer, customer, and utility  Minimize regulatory burdens for all parties  Provide win-win-win solution 2  What size generator?  What fuel or energy source? Does it include storage?  Who pays the up-front cost of the generator?  Who owns the generator?  Who operates the generator?

432

A hardware efficient random number generator for nonuniform distributions with arbitrary precision  

Science Conference Proceedings (OSTI)

Nonuniform random numbers are key for many technical applications, and designing efficient hardware implementations of nonuniform random number generators is a very active research field. However, most state-of-the-art architectures are either tailored ...

Christian De Schryver; Daniel Schmidt; Norbert Wehn; Elke Korn; Henning Marxen; Anton Kostiuk; Ralf Korn

2012-01-01T23:59:59.000Z

433

Characterizing the energy distribution of laser-generated relativistic electrons in cone-wire targets  

Science Conference Proceedings (OSTI)

Transport of relativistic electrons in a solid Cu wire target has been modeled with the implicit hybrid particle-in-cell code LSP to investigate the electron energy distribution and energy coupling from the high-intensity, short-pulse laser to electrons entering to the wire. Experiments were performed on the TITAN laser using a 1.5 mm long Cu wire attached to a Au cone tip at the laser intensity of 1 Multiplication-Sign 10{sup 20} W/cm{sup 2} which was irradiated into the cone. The simulated Cu K{alpha} wire profile and yields matched the measurements using a two-temperature energy distribution. These modeling results show that the cold component of the energy spectrum can be determined with {+-}100 keV accuracy from the fit to the initial experimental fall-off of the K{alpha} emission while the simulated profiles were relatively insensitive to the hotter component of the electron distribution (>4 MeV). The slope of measured escaped electrons was used to determine the hotter temperature. Using exponential energy distributions, the laser-to-electron-in-wire coupling efficiencies inferred from the fits decreased from 3.4% to 1.5% as the prepulse energy increases up to 1 J. The comparison of the energy couplings using the exponential and Relativistic Maxwellian distribution functions showed that the energy inferred in the cold component is independent of the type of the distribution function.

Sawada, H.; Beg, F. N. [Center for Energy Research, University of California San Diego, La Jolla, California 92093 (United States); Higginson, D. P.; Ma, T. [Center for Energy Research, University of California San Diego, La Jolla, California 92093 (United States); Lawrence Livermore National Laboratory, Livermore, California 94551 (United States); Link, A.; Wilks, S. C.; McLean, H. S.; Perez, F.; Patel, P. K. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)

2012-10-15T23:59:59.000Z

434

Performance Analysis of Positive-feedback-based Active Anti-islanding Schemes for Inverter-Based Distributed Generators  

SciTech Connect

Recently proposed positive-feedback-based anti-islanding schemes (AI) are highly effective in preventing islanding without causing any degradation in power quality. This paper aims to analyze the performance of these schemes quantitatively in the context of the dynamic models of inverter-based distributed generators (DG). In this study, the characteristics of these active anti-islanding methods are discussed and design guidelines are derived.

Du, Pengwei; Aponte, Erick E.; Nelson, J. Keith

2010-06-14T23:59:59.000Z

435

An Investigation of the Utilization of Smart Meter Data to Adapt Overcurrent Protection for Radial Distribution Systems with a High Penetration of Distributed Generation  

E-Print Network (OSTI)

The future of electric power distribution systems (DSs) is one that incorporates extensive amounts of advanced metering, distribution automation, and distributed generation technologies. Most DSs were designed to be radial systems and the major philosophies of their protection, namely, selectivity and sensitivity, were easily achieved. Settings for overcurrent protective devices (OCPDs) were static and based on the maximum load downstream of its location, with little concern of major configuration changes. However, the integration of distribution generators (DGs) in radial distributions systems (RDSs) causes bidirectional power flows and varying short circuit currents to be sensed by protective devices, thereby affecting these established protection principles. Several researchers have investigated methods to preserve the selectivity of overcurrent protection coordination in RDSs with DGs, but at the expense of protective device sensitivity due to an inherent change in system configuration. This thesis presents an investigation to adapt the pickup settings of the substation relay, based on configuration changes in a DS with DGs, using smart meter data from the prior year. An existing protection scheme causes the faulted areas of DSs with DGs to revert to a radial configuration, thereby allowing conventional OCPDs to isolate faults. Based on the location of the fault, the created radial segments are known and vary in length. The proposed methodology involves using demand information available via smart metering, to determine the seasonal maximum diversified demands in each of the radial segments that are formed. These seasonal maximum diversified demands are used to yield several pickup settings for the substation overcurrent relay of the DS. The existing protection approach enables the selectivity of radial overcurrent protection coordination to be maintained; the sensitivity of the substation relay is improved by adapting its pickup settings based on seasonal demand and system configuration changes. The results of the studies are reported through simulation in EMTP /PSCAD using a multi-feeder test system that includes DGs and smart meters located at the secondary distribution load level. The results show that using seasonal settings for the substation relay based on configuration changes in a DS with DGs can improve the sensitivity of the substation relay.

Douglin, Richard Henry

2012-05-01T23:59:59.000Z

436

Utilizing Electric Vehicles to Assist Integration of Large Penetrations of Distributed Photovoltaic Generation Capacity  

SciTech Connect

Executive Summary Introduction and Motivation This analysis provides the first insights into the leveraging potential of distributed photovoltaic (PV) technologies on rooftop and electric vehicle (EV) charging. Either of the two technologies by themselves - at some high penetrations may cause some voltage control challenges or overloading problems, respectively. But when combined, there at least intuitively could be synergistic effects, whereby one technology mitigates the negative impacts of the other. High penetration of EV charging may overload existing distribution system components, most prominently the secondary transformer. If PV technology is installed at residential premises or anywhere downstream of the secondary transformer, it will provide another electricity source thus, relieving the loading on the transformers. Another synergetic or mitigating effect could be envisioned when high PV penetration reverts the power flow upward in the distribution system (from the homes upstream into the distribution system). Protection schemes may then no longer work and voltage violation (exceeding the voltage upper limited of the ANSI voltage range) may occur. In this particular situation, EV charging could absorb the electricity from the PV, such that the reversal of power flow can be reduced or alleviated. Given these potential mutual synergistic behaviors of PV and EV technologies, this project attempted to quantify the benefits of combining the two technologies. Furthermore, of interest was how advanced EV control strategies may influence the outcome of the synergy between EV charging and distributed PV installations. Particularly, Californian utility companies with high penetration of the distributed PV technology, who have experienced voltage control problems, are interested how intelligent EV charging could support or affect the voltage control

Tuffner, Francis K.; Chassin, Forrest S.; Kintner-Meyer, Michael CW; Gowri, Krishnan

2012-11-30T23:59:59.000Z

437

Impact of Renewable Distributed Generation on Power Systems M. Begovi, A. Pregelj, A. Rohatgi D. Novosel  

E-Print Network (OSTI)

, improve the voltage profile across the feeder, may reduce the loading level of branches and substation the effect of DG penetration on the actual load demand and voltage profile of the distribution feeder. However, DG systems inherently provide some benefits to the utility. They may level the load curve

438

On the Distribution of the Subset Sum Pseudorandom Number Generator on Elliptic Curves  

E-Print Network (OSTI)

Given a prime $p$, an elliptic curve $\\E/\\F_p$ over the finite field $\\F_p$ of $p$ elements and a binary \\lrs\\ $\\(u(n)\\)_{n =1}^\\infty$ of order~$r$, we study the distribution of the sequence of points

Blackburn, Simon R; Shparlinski, Igor E

2011-01-01T23:59:59.000Z

439

Hardware-in-the-loop simulation of pressurized water reactor steam-generator water-level control, designed for use within physically distributed testing environments.  

E-Print Network (OSTI)

??A hardware-in-the-loop model was developed to represent digital sensing and control of steam generator water-level. The model was created with an intention to serve as (more)

Brink, Michael Joseph

2013-01-01T23:59:59.000Z

440

Updated greenhouse gas and criteria air pollutant emission factors and their probability distribution functions for electricity generating units  

Science Conference Proceedings (OSTI)

Greenhouse gas (CO{sub 2}, CH{sub 4} and N{sub 2}O, hereinafter GHG) and criteria air pollutant (CO, NO{sub x}, VOC, PM{sub 10}, PM{sub 2.5} and SO{sub x}, hereinafter CAP) emission factors for various types of power plants burning various fuels with different technologies are important upstream parameters for estimating life-cycle emissions associated with alternative vehicle/fuel systems in the transportation sector, especially electric vehicles. The emission factors are typically expressed in grams of GHG or CAP per kWh of electricity generated by a specific power generation technology. This document describes our approach for updating and expanding GHG and CAP emission factors in the GREET (Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation) model developed at Argonne National Laboratory (see Wang 1999 and the GREET website at http://greet.es.anl.gov/main) for various power generation technologies. These GHG and CAP emissions are used to estimate the impact of electricity use by stationary and transportation applications on their fuel-cycle emissions. The electricity generation mixes and the fuel shares attributable to various combustion technologies at the national, regional and state levels are also updated in this document. The energy conversion efficiencies of electric generating units (EGUs) by fuel type and combustion technology are calculated on the basis of the lower heating values of each fuel, to be consistent with the basis used in GREET for transportation fuels. On the basis of the updated GHG and CAP emission factors and energy efficiencies of EGUs, the probability distribution functions (PDFs), which are functions that describe the relative likelihood for the emission factors and energy efficiencies as random variables to take on a given value by the integral of their own probability distributions, are updated using best-fit statistical curves to characterize the uncertainties associated with GHG and CAP emissions in life-cycle modeling with GREET.

Cai, H.; Wang, M.; Elgowainy, A.; Han, J. (Energy Systems)

2012-07-06T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

Buildings Energy Data Book: 6.2 Electricity Generation, Transmission, and Distribution  

Buildings Energy Data Book (EERE)

2 2 Net Internal Demand, Capacity Resources, and Capacity Margins in the Contiguous United States (GW) Net Internal Capacity Capacity Demand (1) Resources (2) Margin (3) 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Note(s): Source(s): 778.5 980.3 20.6% 1) Net internal demand represents the system demand that is planned for by the electric power industry`s reliability authority and is equal to internal demand less direct control load management and interruptible demand. Direct control load management: Customer demand that can be interrupted at the time of the seasonal peak by direct control of the system operator by interrupting power supply to individual appliances or equipment on customer premises. This type of control usually reduces the demand of residential customers. Interruptible demand: Customer

442

opportunity employer. Distributed Generation Investment by a Microgrid Under Uncertainty ORMMES06  

E-Print Network (OSTI)

under Contract No. DE-AC02-05CH11231. Disclaimer This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by its trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof, or The Regents of the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any

Ernest Orlando Lawrence; Afzal Siddiqui; Chris Marnay; Afzal Siddiqui; Chris Marnay

2006-01-01T23:59:59.000Z

443

A new method for power generation and distribution in outer space  

SciTech Connect

The power system is a major component of a space system's size, mass, technical complexity, and hence, cost. To date, space systems include the energy source as an integral part of the mission satellite. Potentially significant benefit could be realized by separating the energy source from the end-use system and transmitting the power via an energy beam (power beaming) (Coomes et al., 1989). This concept parallels the terrestrial central generating station and transmission grid. In this summary, the system components required for power beaming implementation are outlined and applied to a satellite for power beaming implementation are outlined and applied to a satellite constellation to demonstrate the feasibility of implementing power beaming in the next 20 years. 5 refs., 1 fig., 3 tabs.

Bamberger, J.A.

1989-09-01T23:59:59.000Z

444

Industry Representatives Acknowledgements  

E-Print Network (OSTI)

computer science: Manitoba curriculum framework of outcomes. Draft Includes bibliographical references. ISBN 0-7711-3122-4 1. Computer scienceCurricula. 2. Computer scienceStudy and teaching (Secondary)Manitoba. 3. Electronic data processingCurricula. 4. Electronic data processingStudy and teaching (Secondary) Manitoba. I. Manitoba. Manitoba Education and Youth. Copyright 2003, the Crown in Right of Manitoba as represented by the Minister of Education and

Draft September Senior (s; Senior (s; Normand Chtel; Collge Bliveau; Louis Riel; School Division; Geoff Bresch; Scott Greenlay; Bruce Popham; David Tetlock

2003-01-01T23:59:59.000Z

445

Facility Representative Program  

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

Facility Representative Facility Representative Office of Nuclear Safety Home Facility Representative Home Annual Facility Rep Workshop › 2012 › 2011 › 2010 › 2009 › 2008 › 2007 › 2006 › 2005 › 2004 › 2003 › 2002 › 2001 › 2000 DOE Safety Links › ORPS Info › Operating Experience › DOE Lessons Learned › Accident Investigation Assessment Tools › FR CRADs › Surveillance Guides › Manager's Guide for Safety and Health Subject Matter Links General Program Information › Program Mission Statement › Program Directives and Guidance › FR of the Year Award Program › FR of the Year Award › FR Program Assessment Guide (Appendix B, DOE STD 1063-2011) FR Quarterly Performance Indicators Training & Qualification Information › Qualification Standards › Energy Online Courses

446

Buildings Energy Data Book: 6.2 Electricity Generation, Transmission, and Distribution  

Buildings Energy Data Book (EERE)

9 9 2009 Peak Load and Capacity Margin, Summer and Winter by NERC Region (MW) NERC Region Capacity Margin Capacity Margin TRE 16.7% 19.1% FRCC 6.0% 2.0% MRO (U.S.) 24.6% 26.8% NPCC (U.S.) 29.1% 43.2% RFC 25.2% 33.3% SERC 24.6% 26.2% SPP 16.4% 34.6% WECC 19.4% 29.6% U.S. TOTAL 22.2% 28.5% Note(s): Source(s): 128,245 109,565 725,958 668,818 1) Summer Demand includes the months of June, July, August, and September. 2) Winter Demand includes December of the previous year and January-March of the current year. 3) Capacity Margin is the amount of unused available capability of an electric power system at peak load as a percentage of net capacity resources. Net Capacity Resources: Utility- and IPP-owned generating capacity that is existing or in various stages of planning or construction, less inoperable capacity, plus planned capacity purchases from other resources, less planned

447

Buildings Energy Data Book: 6.2 Electricity Generation, Transmission, and Distribution  

Buildings Energy Data Book (EERE)

3 3 Electric Capacity Factors, by Year and Fuel Type (1) Conventional Coal Petroleum Natural Gas Nuclear Hydroelectric Solar/PV Wind Total 1990 59% 17% 23% 66% 45% 13% 18% 46% 1991 59% 18% 22% 70% 43% 17% 18% 46% 1992 59% 14% 22% 71% 38% 13% 18% 45% 1993 61% 16% 21% 70% 41% 16% 19% 46% 1994 61% 15% 22% 74% 38% 17% 23% 46% 1995 62% 11% 22% 77% 45% 17% 21% 47% 1996 65% 11% 19% 76% 52% 18% 22% 48% 1997 66% 13% 20% 72% 51% 17% 23% 48% 1998 67% 20% 23% 79% 47% 17% 20% 50% 1999 67% 20% 22% 85% 46% 15% 23% 51% 2000 70% 18% 22% 88% 40% 15% 27% 51% 2001 68% 20% 21% 89% 31% 16% 20% 48% 2002 69% 16% 18% 90% 38% 16% 27% 46% 2003 71% 21% 14% 88% 40% 15% 21% 44% 2004 71% 22% 16% 90% 39% 17% 25% 44% 2005 72% 22% 17% 89% 40% 15% 23% 45% 2006 71% 11% 19% 90% 42% 14% 27% 45% 2007 72% 12% 21% 92% 36% 14% 24% 45% 2008 71% 8% 20% 91% 37% 18% 26% 44% 2009 63% 7% 21% 90% 40% 16% 25% 42% 2010 (2) 65% 6% 23% 91% 37% 17% 29% 43% Note(s): Source(s) 1) EIA defines capacity factor to be "the ratio of the electrical energy produced by a generating unit for the period of time considered to the

448

Buildings Energy Data Book: 6.2 Electricity Generation, Transmission, and Distribution  

Buildings Energy Data Book (EERE)

4 4 Electric Conversion Factors and Transmission and Distribution (T&D) Losses Average Utility Average Utility Growth Rate Delivery Efficiency (1, 2) Delivery Ratio (Btu/kWh) (2, 3) (2010-year) 1980 29.4% 1981 29.9% 1982 29.7% 1983 29.8% 1984 30.5% 1985 30.4% 1986 30.8% 1987 31.1% 1988 31.1% 1989 30.2% 1990 30.3% 1991 30.5% 1992 30.7% 1993 30.6% 1994 30.9% 1995 30.7% 1996 30.7% 1997 30.8% 1998 30.7% 1999 30.6% 2000 30.7% 2001 31.1% 2002 31.1% 2003 31.3% 2004 31.3% 2005 31.5% 2006 31.7% 2007 31.8% 2008 31.8% 2009 32.2% 2010 32.3% 2011 32.1% 2012 32.4% 2013 32.7% 2014 33.0% 2015 33.1% 2016 33.2% 2017 33.1% 2018 33.1% 2019 33.1% 2020 33.1% 2021 33.2% 2022 33.2% 2023 33.2% 2024 33.2% 2025 33.1% 2026 33.2% 2027 33.3% 2028 33.4% 10,218 0.2% 10,294 0.2% 10,266 0.2% 10,247 0.2% 10,277 0.2% 10,291 0.2% 10,281 0.2% 10,300 0.3% 10,301 0.3% 10,282 0.3% 10,292 0.4% 10,310 0.4% 10,305

449

Development and Testing of a 6-Cylinder HCCI Engine for Distributed Generation  

DOE Green Energy (OSTI)

This paper describes the technical approach for converting a Caterpillar 3406 natural gas spark ignited engine into HCCI mode. The paper describes all stages of the process, starting with a preliminary analysis that determined that the engine can be operated by preheating the intake air with a heat exchanger that recovers energy from the exhaust gases. This heat exchanger plays a dual role, since it is also used for starting the engine. For start-up, the heat exchanger is preheated with a natural gas burner. The engine is therefore started in HCCI mode, avoiding the need to handle the potentially difficult transition from SI or diesel mode to HCCI. The fueling system was modified by replacing the natural gas carburetor with a liquid petroleum gas (LPG) carburetor. This modification sets an upper limit for the equivalence ratio at {phi} {approx} 0.4, which is ideal for HCCI operation and guarantees that the engine will not fail due to knock. Equivalence ratio can be reduced below 0.4 for low load operation with an electronic control valve. Intake boosting has been a challenge, as commercially available turbochargers are not a good match for the engine, due to the low HCCI exhaust temperature. Commercial introduction of HCCI engines for stationary power will therefore require the development of turbochargers designed specifically for this mode of operation. Considering that no appropriate off-the-shelf turbocharger for HCCI engines exists at this time, we are investigating mechanical supercharging options, which will deliver the required boost pressure (3 bar absolute intake) at the expense of some reduction in the output power and efficiency. An appropriate turbocharger can later be installed for improved performance when it becomes available or when a custom turbocharger is developed. The engine is now running in HCCI mode and producing power in an essentially naturally aspirated mode. Current work focuses on developing an automatic controller for obtaining consistent combustion in the 6 cylinders. The engine will then be tested for 1000 hours to demonstrate durability. This paper presents intermediate progress towards development of an HCCI engine for stationary power generation and next steps towards achieving the project goals.

Flowers, D L; Martinez-Frias, J; Espinosa-Loza, F; Killingsworth, N; Aceves, S M; Dibble, R; Kristic, M; Bining, A

2005-07-12T23:59:59.000Z

450

ANALOG COMPUTATION OF TEMPERATURE DISTRIBUTION IN SOLIDS WITH ELECTRICAL HEAT-GENERATION AND TEMPERATURE-DEPENDENT PROPERTIES  

SciTech Connect

A problem which frequently arises in experimentai heat transfer work is that of determining the surface temperature of a tube in which heat is generated electrically. Solution of this problem involves a temperature measurement of the opposite surface to which a correction factor, the temperature drop through the tube wall, must be applied. This temperature drop is obtnined through the solution of the diffurential equation governing the temperature distribution in the tube wall; however, in the case of temperature-dependent properties of thermal conductivity and electrical resistivity, the governing equation is nonlinear, which necessitates special solutions. In this study a hypothetical surface-temperature problem was established, and the solution of the governing nonlinear differential equation was accomplished by means of an electronic analog computer. Assuming variable properties, the example used in this study was that of a one-dimensional steadystate heat flow through both a thick- and a thin- walled tube. (auth)

Harden, D.G.; Bryant, L.T.

1962-11-01T23:59:59.000Z

451

Glossary Balancing Item: Represents  

Gasoline and Diesel Fuel Update (EIA)

Balancing Balancing Item: Represents differences between the sum of the components of natural gas supply and the sum of the components of natural gas disposition. These differences may be due to quantities lost or to the effects of data-report- ing problems. Reporting problems include differences due to the net result of conversions of flow data metered at varying temperature and pressure bases and converted to a standard temperature and pressure base; the effect of vari- ations in company accounting and billing practices; differ- ences between billing cycle and calendar period time frames; and imbalances resulting from the merger of data- reporting systems that vary in scope, format, definitions, and type of respondents. Biomass Gas: A medium Btu gas containing methane and carbon dioxide, resulting from the action of microorganisms on organic materials such as a landfill. British Thermal

452

Online energy generation scheduling for microgrids with intermittent energy sources and co-generation  

Science Conference Proceedings (OSTI)

Microgrids represent an emerging paradigm of future electric power systems that can utilize both distributed and centralized generations. Two recent trends in microgrids are the integration of local renewable energy sources (such as wind farms) and the ... Keywords: combined heat and power generation, energy generation scheduling, microgrids, online algorithm

Lian Lu; Jinlong Tu; Chi-Kin Chau; Minghua Chen; Xiaojun Lin

2013-06-01T23:59:59.000Z

453

Distribution:  

Office of Legacy Management (LM)

JAN26 19% JAN26 19% Distribution: OR00 Attn: h.H.M.Roth DFMusser ITMM MMMann INS JCRyan FIw(2) Hsixele SRGustavson, Document rocm Formal file i+a@mmm bav@ ~@esiaw*cp Suppl. file 'Br & Div rf's s/health (lic.only) UNITED STATES ATOMIC ENERGY COMMISSION SPECIAL NUCLEAB MATERIAL LICENSE pursuant to the Atomic Energy Act of 1954 and Title 10, Code of Federal Regulations, Chapter 1, P&t 70, "Special Nuclear Material Reg)llatiqm," a license is hereby issued a$hortztng the licensee to rekeive and possess the special nuclear material designated below; to use such special nuclear mat&ial for the purpose(s) and at the place(s) designated below; and to transfer such material to per&s authorized to receive it in accordance with the regula,tions in said Part.

454

Distributed Generation Status Update  

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

Solutions: * 1 MW fuel cell power plant * Heat recovery cogeneration: hot water and space heating inside jail * Support existing 1.2 MW solar on rooftops (see picture) Process:...

455

Microgrid with distributed generators.  

E-Print Network (OSTI)

??The principal aim of this project is to study the energy production by solar energy system in close to the consumers and integrated into a (more)

Yii, See Mee

2009-01-01T23:59:59.000Z

456

The value of distributed generation: The PVUSA grid-support project serving Kerman Substation. Interim report, April 1994  

DOE Green Energy (OSTI)

A common practice of electric utilities experiencing transmission and distribution (T and D) system overloads is to expand the substation, add lines, or upgrade equipment, all of which are capital intensive options. In 1988, it was hypothesized that strategically sited photovoltaics (PV) could benefit parts of T and D systems near or at overloaded conditions. An evaluation methodology was developed and applied to a test case (Kerman Substation near Fresno, California). Analytical results suggested that the value of PV to the T and D system could substantially exceed its energy and generation capacity value. The importance of this finding indicated the need for empirical validation. This led to the construction of a 0.5 MW PV demonstration plant by Pacific Gas and Electric Company (PG and E) at Kerman, California as part of the PVUSA (PV for Utility Scale Applications) project. PVUSA is a national public-private partnership that is assessing and demonstrating the viability of utility-scale photovoltaic electric generation systems. The Kerman PV plant, commissioned for commercial operation in June, 1993, is reported to be the first grid-support PV demonstration plant in the world. This Interim Report focuses on validating the technical aspects of grid-support PV. It provides interim validation results for four of the eight identified value components that stack up to make the ``value bar``, and compares them to 1992 Case Study estimates. Results are based on improved technical evaluation methodologies, measured plant performance under a variety of conditions, and long-term plant performance estimated using a validated computer simulation program. This report is not intended to be exhaustive in scope. It does, however, provide a thorough progress update of the validation project. Complete documentation of test procedures, data, and evaluation methods will be presented in the Final Report.

Hoff, T.; Wenger, H. [Pacific Energy Group (United States)

1994-07-01T23:59:59.000Z

457

Iowa / Nebraska Distributed Wind Generation Projects First and Second-Year Operating Experience: 1999-2001: U.S. Department of Energ y - EPRI Wind Turbine Verification Program  

Science Conference Proceedings (OSTI)

The Wind Turbine Verification Program (TVP) is a collaborative effort of the U.S. Department of Energy (DOE), EPRI, and host utilities to develop, construct, and operate wind power plants. This report describes the first- and second-year operating experience at the 2.25-MW Iowa Distributed Wind Generation Project (IDWGP) in Algona, Iowa, and the 1.5-MW Nebraska Distributed Wind Generation Project (NDWGP) in Springview, Nebraska. The lessons learned in both projects will be valuable to other utilities pla...

2001-12-03T23:59:59.000Z

458

Federal Interagency Chemistry Representatives (FICR) ...  

Science Conference Proceedings (OSTI)

Federal Interagency Chemistry Representatives (FICR) Meeting 2013 - A Federal Green Chemistry Forum. ...

2013-05-31T23:59:59.000Z

459

Effect of electron energy distribution functions on plasma generated vacuum ultraviolet in a diffusion plasma excited by a microwave surface wave  

Science Conference Proceedings (OSTI)

Plasma generated vacuum ultraviolet (VUV) in diffusion plasma excited by a microwave surface wave has been studied by using dielectric-based VUV sensors. Evolution of plasma VUV in the diffusion plasma as a function of the distance from the power coupling surface is investigated. Experimental results have indicated that the energy and spatial distributions of plasma VUV are mainly controlled by the energy distribution functions of the plasma electrons, i.e., electron energy distribution functions (EEDFs). The study implies that by designing EEDF of plasma, one could be able to tailor plasma VUV in different applications such as in dielectric etching or photo resist smoothing.

Zhao, J. P.; Chen, L.; Funk, M.; Sundararajan, R. [Austin Plasma Laboratory, Tokyo Electron America, Inc., Austin, Texas 78741 (United States); Nozawa, T. [Tokyo Electron Limited, TEL Technology Center Sendai, 2-1 Osawa 3-chome, Izumi-ku, Sendai 981-3137 (Japan); Samukawa, S. [Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan)

2013-07-15T23:59:59.000Z

460

Nuclear Instruments and Methods in Physics Research A 566 (2006) 598608 The number distribution of neutrons and gamma photons generated in a  

E-Print Network (OSTI)

that are based on nuclear physics constants (fission neutron and gamma photon multi- plicities), weighted by nonNuclear Instruments and Methods in Physics Research A 566 (2006) 598­608 The number distribution of neutrons and gamma photons generated in a multiplying sample Andreas Enqvista,?, Imre Pa´ zsita , Sara

Pázsit, Imre

Note: This page contains sample records for the topic "distributed generation represents" 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

Distributed energy resources at naval base ventura county building 1512  

E-Print Network (OSTI)

Adoption Model distributed generation building energycosts of the DG (distributed generation) equipment, alongcapability: DG (distributed generation, electricity only);

Bailey, Owen C.; Marnay, Chris

2004-01-01T23:59:59.000Z

462

Facility Representative Program: Facility Representative of the Year  

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

Facility Representative of the Year Award Facility Representative of the Year Award Annual Facility Representative Workshop Facility Representative of the Year Award Process Facility Representative of the Year Award 2012 WINNER: John C. Barnes, Savannah River Operations Office Letter from DNFSB Chairman Peter S. Winokur, Ph.D 2012 Nominees: Peter W. Kelley, Brookhaven Site Office James E. Garza, Idaho Operations Office (EM) William R. Watson, Idaho Operations Office (NE) Darlene S. Rodriguez, Los Alamos Field Office Robert R. Robb, Livermore Field Office Kenneth W. Wethington, Grand Junction Project Office's Moab site Thomas P. Denny, Nevada Field Office Michael J. Childers, NNSA Production Office Pantex Site Catherine T. Schidel, NNSA Production Office Y12 Site Chelsea D. Hubbard, Oak Ridge Operations Office (EM)

463

FAQS Reference Guide Facility Representative  

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

This reference guide addresses the competency statements in the October 2010 edition of DOE-STD-1151-2010, Facility Representative Functional Area Qualification Standard.

464

Space-based solar power generation using a distributed network of satellites and methods for efficient space power transmission  

E-Print Network (OSTI)

Space-based solar power (SSP) generation is being touted as a solution to our ever-increasing energy consumption and dependence on fossil fuels. Satellites in Earth's orbit can capture solar energy through photovoltaic ...

McLinko, Ryan M.

465

Facility Representative Program: Qualification Standards  

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

Training & Qualification Information Training & Qualification Information Qualification Standards DOE Order Self-Study Modules DOE Fundamentals Handbooks Nuclear Safety Basis Self-Study Guide Energy Online Courses Available Link to National Training Center Basic Courses for Facility Representative Qualification Recommended Courses to Expand Facility Representative's Knowledge Base Qualification Standards General Technical Base Qualification Standard, Qualification Card & Reference Guide -- GTB Qualification Standard (DOE-STD-1146-2007), December 2007 [PDF] -- GTB Qualification Card, December 2007 [DOC] -- GTB "Gap" Qualification Card, December 2007 [DOC] -- GTB Qualification Standard Reference Guide, May 2008 [PDF] Facility Representative Qualification Standard, Qualification Card & Reference Guide

466

Facility Representative Program: Basic Courses For Facility Representative  

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

Training & Qualification Information Training & Qualification Information Qualification Standards DOE Order Self-Study Modules DOE Fundamentals Handbooks Nuclear Safety Basis Self-Study Guide Energy Online Courses Available Link to National Training Center Basic Courses for Facility Representative Qualification Recommended Courses to Expand Facility Representative's Knowledge Base Basic Courses For Facility Rep Qualification (These courses may be beneficial during the initial qualification of Facility Representatives.) Course Title FR FAQS CN Point of Contact Comments Applied Engineering Fundamentals 13 days * See below Mike Schoener 803-641-8166 E-mail Course description at http://ntc.doe.gov course catalog Asbestos Awareness 2 hours 2.1 Federal employees register through the CHRIS system For course details see

467

Fluid Flow Model Development for Representative Geologic Media | Department  

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

Fluid Flow Model Development for Representative Geologic Media Fluid Flow Model Development for Representative Geologic Media Fluid Flow Model Development for Representative Geologic Media Clay and granitic geologic rock units are potential host media for future repositories for used nuclear fuel and high level waste. This report addresses the representation of flow in these two media within numerical process models. Discrete fracture network (DFNs) models are an approach to representing flow in fractured granite that explicitly represents the geometry and flow properties of individual fractures. New DFN generation and computational grid generation methods have been developed and tested. Mesh generation and the generation of flow streamlines within the DFN are also included. Traditional form of Darcy's law is not adequate

468

Net Metering Policy Development and Distributed Solar Generation in Minnesota: Overview of Trends in Nationwide Policy Development and Implications of Increasing the Eligible System Size Cap  

DOE Green Energy (OSTI)

The goal of the Minnesota net metering policy is to give the maximum possible encouragement to distributed generation assets, especially solar electric systems (MN 2008). However, according to a published set of best practices (NNEC 2008) that prioritize the maximum development of solar markets within states, the Minnesota policy does not incorporate many of the important best practices that may help other states transform their solar energy markets and increase the amount of grid-connected distributed solar generation assets. Reasons cited include the low system size limit of 40kW (the best practices document recommends a 2 MW limit) and a lack of language protecting generators from additional utility fees. This study was conducted to compare Minnesota's policies to national best practices. It provides an overview of the current Minnesota policy in the context of these best practices and other jurisdictions' net metering policies, as well as a qualitative assessment of the impacts of raising the system size cap within the policy based on the experiences of other states.

Doris, E.; Busche, S.; Hockett, S.

2009-12-01T23:59:59.000Z

469

Has Restructuring Improved Operating Efficiency at U.S. Electricity Generating Plants?  

E-Print Network (OSTI)

States N Distribution Transmission Generation RestructuringStates N Distribution Transmission Generation Restructuringof generation, transmission, and distribution services, we

Fabrizio, Kira; Rose, Nancy; Wolfram, Catherine

2004-01-01T23:59:59.000Z

470

Regret-minimizing representative databases  

Science Conference Proceedings (OSTI)

We propose the k-representative regret minimization query (k-regret) as an operation to support multi-criteria decision making. Like top-k, the k-regret query assumes that users have some utility or scoring functions; however, ...

Danupon Nanongkai; Atish Das Sarma; Ashwin Lall; Richard J. Lipton; Jun Xu

2010-09-01T23:59:59.000Z

471

Data Visualization Perceiving and Representing  

E-Print Network (OSTI)

Data Visualization Perceiving and Representing Structured Information using Objects #12;Data #12;Data Visualization Image Based vs Structure Theories s Template theories based on 2D image processing s In structural theories we extract the structure of a scene in terms of 3D primitives #12;Data

Chi, Ed Huai-hsin

472

Facility Representative Program: Facility Representative of the Year  

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

Facility Representative Facility Representative Office of Nuclear Safety Home Facility Representative Home Annual Facility Rep Workshop › 2012 › 2011 › 2010 › 2009 › 2008 › 2007 › 2006 › 2005 › 2004 › 2003 › 2002 › 2001 › 2000 DOE Safety Links › ORPS Info › Operating Experience › DOE Lessons Learned › Accident Investigation Assessment Tools › FR CRADs › Surveillance Guides › Manager's Guide for Safety and Health Subject Matter Links General Program Information › Program Mission Statement › Program Directives and Guidance › FR of the Year Award Program › FR of the Year Award › FR Program Assessment Guide (Appendix B, DOE STD 1063-2011) FR Quarterly Performance Indicators Training & Qualification Information › Qualification Standards › Energy Online Courses

473

Photon-number distributions of twin beams generated in spontaneous parametric down-conversion and measured by an intensified CCD camera  

E-Print Network (OSTI)

The measurement of photon-number statistics of fields composed of photon pairs, generated in spontaneous parametric down-conversion and detected by an intensified CCD camera is described. Final quantum detection efficiencies, electronic noises, finite numbers of detector pixels, transverse intensity spatial profiles of the detected beams as well as losses of single photons from a pair are taken into account in a developed general theory of photon-number detection. The measured data provided by an iCCD camera with single-photon detection sensitivity are analyzed along the developed theory. Joint signal-idler photon-number distributions are recovered using the reconstruction method based on the principle of maximum likelihood. The range of applicability of the method is discussed. The reconstructed joint signal-idler photon-number distribution is compared with that obtained by a method that uses superposition of signal and noise and minimizes photoelectron entropy. Statistics of the reconstructed fields are identified to be multi-mode Gaussian. Elements of the measured as well as the reconstructed joint signal-idler photon-number distributions violate classical inequalities. Sub-shot-noise correlations in the difference of the signal and idler photon numbers as well as partial suppression of odd elements in the distribution of the sum of signal and idler photon numbers are observed.

Jan Perina Jr; Ondrej Haderka; Martin Hamar; Vaclav Michalek

2012-02-07T23:59:59.000Z

474

Fuel Cell Power Model Version 2: Startup Guide, System Designs, and Case Studies. Modeling Electricity, Heat, and Hydrogen Generation from Fuel Cell-Based Distributed Energy Systems  

DOE Green Energy (OSTI)

This guide helps users get started with the U.S. Department of Energy/National Renewable Energy Laboratory Fuel Cell Power (FCPower) Model Version 2, which is a Microsoft Excel workbook that analyzes the technical and economic aspects of high-temperature fuel cell-based distributed energy systems with the aim of providing consistent, transparent, comparable results. This type of energy system would provide onsite-generated heat and electricity to large end users such as hospitals and office complexes. The hydrogen produced could be used for fueling vehicles or stored for later conversion to electricity.

Steward, D.; Penev, M.; Saur, G.; Becker, W.; Zuboy, J.

2013-06-01T23:59:59.000Z

475

Facility Representative Functional Area Qualification Standard  

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

DOE-STD-1151-2010 October 2010 DOE STANDARD FACILITY REPRESENTATIVE FUNCTIONAL AREA QUALIFICATION STANDARD DOE Defense Nuclear Facilities Technical Personnel U.S. Department of Energy AREA TRNG Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. DOE-STD-1151-2010 ii This document is available on the Department of Energy Office of Health, Safety and Security Approved DOE Technical Standards Web Site at http://www.hss.doe.gov/nuclearsafety/ns/techstds/standard/standard.html DOE-STD-1151-2010 iii APPROVAL The Federal Technical Capability Panel consists of senior U.S. Department of Energy (DOE) managers responsible for overseeing the Federal Technical Capability Program. This Panel is

476

A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System  

E-Print Network (OSTI)

for distributed generation . . . . . . . . . . . . . . 50environmentally benign distributed generation in a varietyfor inexpensive Distributed Generation (DG) technologies in

Norwood, Zachary Mills

2011-01-01T23:59:59.000Z

477

Distributed Energy Resources for Carbon Emissions Mitigation  

E-Print Network (OSTI)

U.S. Commercial Distributed Generation Adoption. LawrenceN. Zhou, 2007. Distributed Generation with Heat Recovery

Firestone, Ryan; Marnay, Chris

2008-01-01T23:59:59.000Z

478

Economic feasibility analysis of distributed electric power generation based upon the natural gas-fired fuel cell. Final report  

DOE Green Energy (OSTI)

The final report provides a summary of results of the Cost of Ownership Model and the circumstances under which a distributed fuel cell is economically viable. The analysis is based on a series of micro computer models estimate the capital and operations cost of a fuel cell central utility plant configuration. Using a survey of thermal and electrical demand profiles, the study defines a series of energy user classes. The energy user class demand requirements are entered into the central utility plant model to define the required size the fuel cell capacity and all supporting equipment. The central plant model includes provisions that enables the analyst to select optional plant features that are most appropriate to a fuel cell application, and that are cost effective. The model permits the choice of system features that would be suitable for a large condominium complex or a residential institution such as a hotel, boarding school or prison. Other applications are also practical; however, such applications have a higher relative demand for thermal energy, a characteristic that is well-suited to a fuel cell application with its free source of hot water or steam. The analysis combines the capital and operation from the preceding models into a Cost of Ownership Model to compute the plant capital and operating costs as a function of capacity and principal features and compares these estimates to the estimated operating cost of the same central plant configuration without a fuel cell.

Not Available

1994-03-01T23:59:59.000Z

479

Facility Representative Program Performance Indicators for October - December 2010  

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

FOR DISTRIBUTION FOR DISTRIBUTION FROM: ANDREW C. LAWRENCE DIRECTOR OFFICE OF NUCLEAR SAFETY, QUALITY ASSURANCE AND ENVIRONMENT OFFICE OF HEALTH, SAFETY AND SECURITY SUBJECT: Facility Representative Program Performance Indicators Quarterly Report, October-December (Fourth Quarter Calendar Year 2010) This memorandum summarizes the highlights of the Facility Representative (FR) Program Performance Indicators Quarterly Report covering the period October through December 2010. Data for these indicators were gathered by Field Elements quarterly per Department of Energy (DOE) Standard (STD)-1063-2006, Facility Representatives, and reported to Headquarters Program Offices for evaluation and feedback to improve the FR Program. Highlights from this report are presented below:

480

The potential for distributed generation in Japanese prototype buildings: A DER-CAM analysis of policy, tariff design, building energy use, and technology development (English Version)  

E-Print Network (OSTI)

1 2. Distributed Energy Resources Customer AdoptionPublic Utilities Commission DER Distributed Energy ResourcesDER-CAM Distributed Energy Resources Customer Adoption Model

Zhou, Nan; Marnay, Chris; Firestone, Ryan; Gao, Weijun; Nishida, Masaru

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "distributed generation represents" 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

Markov Chain Monte Carlo Stimulus Generation for Constrained Random Simulation  

E-Print Network (OSTI)

Distributions of speedup from parallel generation. . . . . . . . . . . . . . . . . .and good distribution in stimulus generation is a demandingDistributions of projected speedup from parallel generation

Kitchen, Nathan

2010-01-01T23:59:59.000Z

482

Putting Economic Power In Distributed Power t  

U.S. Energy Information Administration (EIA)

Putting Economic Power in Distributed Power. A distributed electricity generation system, often called di