National Library of Energy BETA

Sample records for water efficiency basics

  1. Water Efficiency

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Efficiency Hosted by: FEDERAL UTILITY PARTNERSHIP WORKING GROUP SEMINAR November 5-6, 2014 Cape Canaveral, Florida WATER EFFICIENCY Federal Utility Partnership Working Group November 5-6, 2014 Cape Canaveral, FL * Kate McMordie Stoughton - Pacific Northwest National Laboratory * kate.mcmordie@pnnl.gov * Francis Wheeler - Water Savers, LLC * fwheeler@watersaversllc.com Topics * Performance contracting analysis * Water industry terms * Federal reduction goals * Water balance * Water efficiency

  2. Water Heating Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Water Heating Basics Water Heating Basics August 19, 2013 - 11:15am Addthis A variety of systems are available for water heating in homes and buildings. Learn about: Conventional Storage Water Heaters Demand (Tankless or Instantaneous) Water Heaters Heat Pump Water Heaters Solar Water Heaters Tankless Coil and Indirect Water Heaters Addthis Related Articles Tankless Demand Water Heater Basics Solar Water Heater Basics Heat Pump Water Heater Basics Energy Basics Home Renewable Energy Homes &

  3. 2014-12-22 Issuance: Alternative Efficiency Determination Methods, Basic Model Definition, and Compliance for Commercial HVAC, Refrigeration, and Water Heating Equipment; Final Rule

    Energy.gov [DOE]

    This document is a pre-publication Federal Register final rule regarding alternative efficiency determination methods, basic model definition, and compliance for commercial HVAC, refrigeration, and water heating equipment , as issued by the Deputy Assistant Secretary for Energy Efficiency on December 22, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

  4. Boiler and cooling water basics

    SciTech Connect (OSTI)

    Ketrick, B.T.

    1995-06-01

    Boiler Water Treatment products and programs are used in boiler systems to prevent the formation of water side deposits and corrosion. Water side deposits will cause a loss of boiler efficiency, as well as, damage to the boiler internals. Corrosion can cause a loss of boiler metal integrity. Both conditions can lead to a reduced operating life for the boiler and costly annual repairs.

  5. Industrial Energy Efficiency Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Industrial Energy Efficiency Basics Industrial Energy Efficiency Basics The industrial sector is vital to the U.S. economy, but at the same time consumes the most energy in the country to manufacture products we use every day. Among the most energy-intensive industries are aluminum, chemicals, forest product, glass, metal casting, mining, petroleum refining, and steel. The energy supply chain begins with electricity, steam, natural gas, coal, and other fuels supplied to a manufacturing plant

  6. Solar Water Heater Basics | Department of Energy

    Energy Savers

    Water Heating Solar Water Heater Basics Solar Water Heater Basics August 19, 2013 - 3:01pm Addthis Illustration of an active, closed loop solar water heater. A large, flat panel ...

  7. Efficient Water Use & Management

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Water Use Goal 4: Efficient Water Use & Management Aware of the arid climate of northern New Mexico, water reduction and conservation remains a primary concern at LANL. Energy...

  8. Tankless Coil and Indirect Water Heater Basics | Department of...

    Energy Savers

    Homes & Buildings Water Heating Tankless Coil and Indirect Water Heater Basics Tankless Coil and Indirect Water Heater Basics August 19, 2013 - 3:03pm Addthis Illustration of ...

  9. 2014-09-18 Issuance: Energy Conservation Standard for Alternative Efficiency Determination Methods, Basic Model Definition, and Compliance for Commercial HVAC, Refrigeration, and Water Heating Equipment; Supplemental Notice of Proposed Rulemaking

    Energy.gov [DOE]

    This document is a pre-publication Federal Register supplemental notice of proposed rulemaking regarding energy conservation standards for alternative efficiency determination methods, basic model definition, and compliance for commercial HVAC, Refrigeration, and Water Heating Equipment, as issued by the Deputy Assistant Secretary for Energy Efficiency on September 18, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

  10. Photovoltaic Cell Conversion Efficiency Basics | Department of...

    Energy Savers

    August 20, 2013 - 2:58pm Addthis The conversion efficiency of a photovoltaic (PV) cell, or solar cell, is the percentage of the solar energy shining on a PV device that is ...

  11. Tankless Demand Water Heater Basics | Department of Energy

    Energy Savers

    Water Heating Tankless Demand Water Heater Basics Tankless Demand Water Heater Basics August 19, 2013 - 2:57pm Addthis Illustration of an electric demand water heater. At the ...

  12. Guide to Home Water Efficiency

    SciTech Connect (OSTI)

    2010-10-01

    A fact sheet from the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy: A water-efficient home helps you minimize your water use, harness water for reuse, conserve energy, and save money.

  13. NREL: Sustainable NREL - Water Efficiency

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Water Efficiency A photo of water spilling out of a downspout from the roof of a multi-story office building. NREL conserves water in a number of innovative ways. A photo of water ...

  14. Water-Efficiency Program Prioritization

    Energy.gov [DOE]

    Presentation outlines water-efficiency program requirements and priorities as presented to Federal agencies by the Federal Energy Management Program.

  15. Montana Understanding the Basics of Water Law In Montana Webpage...

    Open Energy Information (Open El) [EERE & EIA]

    Understanding the Basics of Water Law In Montana Webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Montana Understanding the Basics of Water Law...

  16. Water Efficiency Case Studies | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Water Efficiency Case Studies Water Efficiency Case Studies These case studies offer examples of water efficiency projects implemented by federal agencies. They are organized by ...

  17. Comprehensive Water-Efficiency Solutions

    SciTech Connect (OSTI)

    McMordie Stoughton, Kate

    2015-07-15

    Energy performance contracts can be an effective way to integrate comprehensive water-efficient technologies and solutions into energy efficiency projects. Current practices often miss key opportunities to incorporate a full suite of water measures primarily because a comprehensive approach is not taken in the assessment. This article provides information on how to develop a comprehensive water project that leads to innovative solutions and potential for large water reduction.

  18. Efficient Water Use & Management

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Water Use Goal 4: Efficient Water Use & Management Aware of the arid climate of northern New Mexico, water reduction and conservation remains a primary concern at LANL. Energy Conservation» Efficient Water Use & Management» High Performance Sustainable Buildings» Greening Transportation» Green Purchasing & Green Technology» Pollution Prevention» Science Serving Sustainability» ENVIRONMENTAL SUSTAINABILITY GOALS at LANL Sanitary Effluent Reclamation Facility: Using reverse

  19. Basic studies of 3-5 high efficiency cell components

    SciTech Connect (OSTI)

    Lundstrom, M.S.; Melloch, M.R.; Pierret, R.F.; Carpenter, M.S.; Chuang, H.L.; Dodd, P.E.; Keshavarzi, A.; Klausmeier-Brown, M.E.; Lush, G.B.; Stellwag, T.B. )

    1993-01-01

    This project's objective is to improve our understanding of the generation, recombination, and transport of carriers within III-V homo- and heterostructures. The research itself consists of fabricating and characterizing solar cell building blocks'' such as junctions and heterojunctions as well as basic measurements of material parameters. A significant effort is also being directed at characterizing loss mechanisms in high-quality, III-V solar cells fabricated in industrial research laboratories throughout the United States. The project's goal is to use our understanding of the device physics of high-efficiency cell components to maximize cell efficiency. A related goal is the demonstration of new cell structures fabricated by molecular beam epitaxy (MBE). The development of measurement techniques and characterization methodologies is also a project objective. This report describes our progress during the fifth and final year of the project. During the past five years, we've teamed a great deal about heavy doping effects in p[sup +] and n[sup +] GaAs and have explored their implications for solar cells. We have developed an understanding of the dominant recombination losses in present-day, high-efficiency cells. We've learned to appreciated the importance of recombination at the perimeter of the cell and have developed techniques for chemically passivating such edges. Finally, we've demonstrated that films grown by molecular beam epitaxy are suitable for high-efficiency cell research.

  20. Conventional Storage Water Heater Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Water Heating » Conventional Storage Water Heater Basics Conventional Storage Water Heater Basics July 30, 2013 - 3:39pm Addthis Illustration showing the components of a storage water heater. On top of the tank are two thin pipes; one pipe is the hot water outlet, and the other is the cold water inlet. A large pipe in the middle is called a vent pipe. A pressure/temperature relief valve is also on top of the tank and is connected to an open pipe that runs down the side of the tank. Another

  1. Increasing Federal Office Building Water Efficiency

    SciTech Connect (OSTI)

    2010-04-21

    Quick guide to increasing Federal office building water efficiency, water management planning, performing a water audit, calculating a water balance, and best management practices.

  2. Heat Pump Water Heater Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Water Heating » Heat Pump Water Heater Basics Heat Pump Water Heater Basics August 19, 2013 - 2:59pm Addthis Illustration of a heat pump water heater, which looks like a tall cylinder with a small chamber on top and a larger one on the bottom. In the top chamber are a fan, a cylindrical compressor, and an evaporator that runs along the inside of the chamber. Jutting out from the exterior of the bottom chamber is a temperature and pressure relief valve. This valve has a tube called a hot water

  3. Coordinating Energy Efficiency With Water Conservation Services...

    Energy Savers

    With Water Conservation Services Coordinating Energy Efficiency With Water Conservation Services Better Buildings Residential Network Program Sustainability Peer Exchange Call ...

  4. High efficiency water heating system

    SciTech Connect (OSTI)

    Gerstmann, J.; Vasilakis, A.D.

    1984-05-01

    A high efficiency gas fired residential water heater includes an insulated, plastic-lined storage tank. The water in the tank is heated by an external heat exchanger which defines a water-walled combustion chamber. The fuel gas and combustion air burned in the chamber are premixed to a near stoichiometric mixture without the use of a blower. Under the force of line pressure or less, the fuel gas is accelerated into an aspirator/mixer which premixes an amount of air sufficient for complete combustion of the fuel gas. The water-walled combustion chamber is particularly suited for substantial recovery of the heat of a pilot flame. The pilot products of combustion heat water at the upper end of the combustion chamber without causing significant convective flow throughout the heat exchanger.

  5. Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Basics Basics ATLAS users belong to the "atlas" NERSC repository, and the Principal Investigator (PI) for ATLAS computing at NERSC is Ian Hinchliffe. ALICE users work in the sl53...

  6. Best Management Practices for Water Efficiency

    Office of Energy Efficiency and Renewable Energy (EERE)

    FEMP originally developed Federal Water Efficiency Best Management Practices in response to Executive Order (E.O.) 13123 requirements, which required Federal agencies to reduce water use through cost-effective water efficiency improvements. E.O. 13423 supersedes E.O. 13123.

  7. Coordinating Energy Efficiency With Water Conservation Services

    Energy.gov [DOE]

    Better Buildings Residential Network Program Sustainability Peer Exchange Call Series: Coordinating Energy Efficiency with Water Conservation Services, call slides and discussion summary, September 11, 2014.

  8. Basic Research Needs for Clean and Efficient Combustion of 21st Century Transportation Fuels

    SciTech Connect (OSTI)

    McIlroy, A.; McRae, G.; Sick, V.; Siebers, D. L.; Westbrook, C. K.; Smith, P. J.; Taatjes, C.; Trouve, A.; Wagner, A. F.; Rohlfing, E.; Manley, D.; Tully, F.; Hilderbrandt, R.; Green, W.; Marceau, D.; O'Neal, J.; Lyday, M.; Cebulski, F.; Garcia, T. R.; Strong, D.

    2006-11-01

    To identify basic research needs and opportunities underlying utilization of evolving transportation fuels, with a focus on new or emerging science challenges that have the potential for significant long-term impact on fuel efficiency and emissions.

  9. ZERH Webinar: Efficient Hot Water Distribution: You Know that...

    Energy Savers

    Efficient Hot Water Distribution: You Know that Hot Water Distribution is Important (Text Version) ZERH Webinar: Efficient Hot Water Distribution: You Know that Hot Water ...

  10. ZERH Webinar: Efficient Hot Water Distribution: You Know that...

    Energy Savers

    Efficient Hot Water Distribution: You Know that Hot Water Distribution is Important ZERH Webinar: Efficient Hot Water Distribution: You Know that Hot Water Distribution is ...

  11. Energy and Water Efficiency on Campus | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy and Water Efficiency on Campus NREL ensures the resiliency of our future energy and water systems through energy efficiency strategies and technologies, renewable energy, and water efficiency on the NREL campus. FY15 Energy Intensity. The South Table Mountain Campus reported a total energy use intensity of 136,048 Btu/GSF on the campus. Energy consumption included 83,047 MBtu from grid electricity, 14,808 MBtu from solar PV, 14,504 MBtu from renewable fuels heating plant, and 52,865 MBtu

  12. Water Efficiency Improvements at Various U.S. Environmental Protection...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Water Efficiency Improvements at Various U.S. Environmental Protection Agency Sites Water Efficiency Improvements at Various U.S. Environmental Protection Agency Sites Water...

  13. Water Efficiency and ESPCs: How Effective are ESPCs at Integrating...

    Energy Savers

    Efficiency and ESPCs: How Effective are ESPCs at Integrating Innovative Water Measures? Water Efficiency and ESPCs: How Effective are ESPCs at Integrating Innovative Water ...

  14. Water Efficiency Improvements at Various U.S. Environmental Protection...

    Energy Savers

    Water Efficiency Improvements at Various U.S. Environmental Protection Agency Sites Water Efficiency Improvements at Various U.S. Environmental Protection Agency Sites Water ...

  15. Water Efficiency in Federal Buildings and Campuses | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Facilities » Water Efficiency » Water Efficiency in Federal Buildings and Campuses Water Efficiency in Federal Buildings and Campuses Water Efficiency in Federal Buildings and Campuses The Federal Energy Management Program (FEMP) provides agencies with guidance and direction on how to increase water efficiency and reduce water use in federal buildings and campuses. Three legal authorities require agencies to reduce water use and implement water efficiency measures: Executive Order (E.O.)

  16. Integrating water supply and efficient use options

    SciTech Connect (OSTI)

    Melendy, C.A.

    1995-06-01

    This paper addresses a new planning process that includes water use efficiency measures, new technologies, and traditional supply options. As water agencies gain experience in influencing customer water use amounts and patterns, the agencies need to incorporate these changes into their planning process. Here is a description of process used successfully by electric and natural gas utilities to compare and select among both supply-side and demand-side resource options.

  17. Army Reserve Comprehensive Water Efficiency Assessments

    SciTech Connect (OSTI)

    McMordie Stoughton, Kate; Kearney, Jaime

    2015-04-14

    The Army Reserve has partnered with the Pacific Northwest National Laboratory (PNNL) to develop comprehensive water assessments for numerous Army Reserve Centers in all five regions including the Pacific islands and Puerto Rico, and at Fort Buchanan and Fort Hunter Liggett. The objective of these assessments is to quantify water use at the site, and identify innovative water efficiency projects that can be implemented to help reduce water demand and increase efficiency. Several of these assessments have focused on a strategic plan for achieving net zero water to help meet the Army’s Net Zero Directive . The Army Reserve has also leveraged this approach as part of the energy conservation investment program (ECIP), energy savings performance contracts (ESPCs), and utility energy service contracts (UESCs). This article documents the process involved.

  18. Purchasing Energy-Efficient Residential Electric Storage Water...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy-Efficient Residential Electric Storage Water Heaters Purchasing Energy-Efficient Residential Electric Storage Water Heaters The Federal Energy Management Program (FEMP) ...

  19. Purchasing Energy-Efficient Water-Cooled Ice Machines | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Purchasing Energy-Efficient Water-Cooled Ice Machines The Federal Energy Management Program (FEMP) provides efficiency requirements and acquisition guidance for water-cooled ice ...

  20. Efficient Residential Water Heaters Webinar | Department of Energy

    Energy Savers

    Weatherization Assistance Program Pilot Projects Efficient Residential Water Heaters Webinar Efficient Residential Water Heaters Webinar On Feb. 22, 2011, Jerone Gagliano, ...

  1. Energy -- and Water -- Efficiency in the DOE Zero Energy Ready...

    Energy Savers

    Energy -- and Water -- Efficiency in the DOE Zero Energy Ready Home Program Webinar (Text Version) Energy -- and Water -- Efficiency in the DOE Zero Energy Ready Home Program ...

  2. DOE ZERH Webinar: Efficient Hot Water Distribution I -- What...

    Energy Savers

    DOE ZERH Webinar: Efficient Hot Water Distribution I -- What's At Stake (Text Version) Below is the text version of the webinar, Efficient Hot Water Distribution I -- What's At ...

  3. New Residential Water Heater Concept Promises High Efficiency...

    Energy Savers

    Residential Water Heater Concept Promises High Efficiency, Lower Cost New Residential Water Heater Concept Promises High Efficiency, Lower Cost August 17, 2016 - 2:20pm Addthis A ...

  4. Water Efficient Energy Production for Geothermal Resources | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Efficient Energy Production for Geothermal Resources Water Efficient Energy Production for Geothermal Resources Water Efficient Energy Production for Geothermal Resources.PDF (4.19 MB) More Documents & Publications Water Efficient Energy Production for Geothermal Resources Water Use in the Development and Operations of Geothermal Power Plants Water Use in the Development and Operations of Geothermal Power Plants

  5. Water Challenges for the New Century: Meeting Basic Human and...

    Energy.gov (indexed) [DOE]

    Framing Energy, Water, and Climate Critical Links USDoE Quadrennial Energy Review Task ... in the fields of water and economic and environmental justice and sustainability. Dr. ...

  6. Solution of basic operational problems of water-development works at the Votkinsk hydroproject

    SciTech Connect (OSTI)

    Deev, A. P.; Borisevich, L. A.; Fisenko, V. F.

    2012-11-15

    Basic operational problems of water-development works at the Votkinsk HPP are examined. Measures for restoration of normal safety conditions for the water-development works at the HPP, which had been taken during service, are presented.

  7. Water Efficient Energy Production for Geothermal Resources | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Water Efficient Energy Production for Geothermal Resources Water Efficient Energy Production for Geothermal Resources Primer FINAL.PDF (4.19 MB) More Documents & Publications Water Efficient Energy Production for Geothermal Resources Water Use in the Development and Operations of Geothermal Power Plants Water Use in the Development and Operations of Geothermal Power Plants

  8. Best Management Practices for Water Efficiency | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Water Efficiency » Best Management Practices for Water Efficiency Best Management Practices for Water Efficiency The Federal Energy Management Program (FEMP) worked with the U.S. Environmental Protection Agency (EPA) to develop 14 water efficiency best management practices (BMPs) to help agencies increase water efficiency and meet federal requirements. Each BMP provides operations and maintenance improvements and retrofit and replacement options. Use these best management practices to glean

  9. ZERH Webinar: Efficient Hot Water Distribution | Department of...

    Energy Savers

    ZERH Webinar: Efficient Hot Water Distribution ZERH Webinar: Efficient Hot Water Distribution September 14, 2016 12:00PM to 1:00PM EDT You Know that Hot Water Distribution is ...

  10. Water-Efficient Technology Opportunities | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Facilities » Water Efficiency » Water-Efficient Technology Opportunities Water-Efficient Technology Opportunities Water-Efficient Technology Opportunities The Federal Energy Management Program (FEMP) identified the following four water-saving technologies that are relevant to the federal sector, are commercially available, and offer opportunities for significant water savings potential. Advanced Cooling Tower Controls Multi-stream Rotational Sprinkler Heads Sprinkler Automatic Shut-Off Devices

  11. Best Management Practice #5: Water-Efficient Irrigation | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy 5: Water-Efficient Irrigation Best Management Practice #5: Water-Efficient Irrigation Best Management Practice #5: Water-Efficient Irrigation Water efficiency must be considered from the initial irrigation system design phase through installation to ensure optimal performance. Consistent management and maintenance are also essential. Failure to do so can result in significant losses in system efficiency from poor management, improper system design, installation, or maintenance. With

  12. Best Management Practice #4: Water-Efficient Landscaping | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy 4: Water-Efficient Landscaping Best Management Practice #4: Water-Efficient Landscaping Best Management Practice #4: Water-Efficient Landscaping Traditional landscapes require supplemental water to thrive in most locations. Kentucky bluegrass, for example, is native to regions that receive in excess of 40 inches per year of precipitation, but it is commonly planted in areas across the country that receive much less precipitation. Overview Outdoor water use efficiency has two facets:

  13. Columbia Water & Light- HVAC and Lighting Efficiency Rebates

    Office of Energy Efficiency and Renewable Energy (EERE)

    Columbia Water & Light (CWL) offers rebates to its commercial and industrial customers for the purchase of high efficiency HVAC installations and efficient lighting. Incentives for certain...

  14. Fast, Efficient Isothermal Redox to Split Water or Carbon Dioxide...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Fast, Efficient Isothermal Redox to Split Water or Carbon Dioxide using Solar Energy ... the hercynite cycle allows faster, more efficient cycling and less wear on the equipment ...

  15. C.R.S. 37-92-102 - Basic Tenets of Colorado Water Law | Open...

    Open Energy Information (Open El) [EERE & EIA]

    C.R.S. 37-92-102 - Basic Tenets of Colorado Water Law Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: C.R.S. 37-92-102 - Basic...

  16. 5 CCR 1002-41 Basic Standards for Ground Water | Open Energy...

    Open Energy Information (Open El) [EERE & EIA]

    to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: 5 CCR 1002-41 Basic Standards for Ground WaterLegal Abstract Regulations implementing the...

  17. 5 CCR 1002-31 Basic Standards and Methodologies for Surface Water...

    Open Energy Information (Open El) [EERE & EIA]

    to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: 5 CCR 1002-31 Basic Standards and Methodologies for Surface Water RegulationLegal Abstract...

  18. Vera Water & Power- Residential Energy Efficiency Rebate Program

    Energy.gov [DOE]

    Vera Water and Power offers several rebates to electric customers who purchase and install energy efficient equipment. Rebates are available for water heaters, windows, heat pumps, clothes washer,...

  19. Glendale Water and Power- Energy Efficiency Appliance Rebate Program

    Energy.gov [DOE]

    Glendale Water and Power (GPW) offers the Smart Home Energy and Water Saving Rebate Program that includes several incentives for residential customers to improve the energy efficiency of...

  20. Environmental Controls on Water Use Efficiency during Severe...

    Office of Scientific and Technical Information (OSTI)

    Environmental Controls on Water Use Efficiency during Severe Drought in an Ozark Forest in Missouri, USA Citation Details In-Document Search Title: Environmental Controls on Water ...

  1. Purchasing Energy-Efficient Residential Solar Water Heaters ...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Solar Water Heaters Purchasing Energy-Efficient Residential Solar Water Heaters The Federal Energy Management Program (FEMP) provides acquisition guidance for residential solar ...

  2. Water-Efficient Technology Opportunity: Steam Sterilizer Condensate...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Steam Sterilizer Condensate Retrofit Kit Water-Efficient Technology Opportunity: Steam ... sterilizer condensate retrofit kits as a water-saving technology that is relevant to the ...

  3. Purchasing Energy-Efficient Residential Gas Storage Water Heaters...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Gas Storage Water Heaters Purchasing Energy-Efficient Residential Gas Storage Water Heaters The Federal Energy Management Program (FEMP) provides acquisition guidance for ...

  4. Water-Efficient Technology Opportunity: Multi-Stream Rotational...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Multi-Stream Rotational Sprinkler Heads Water-Efficient Technology Opportunity: ... rotational sprinkler heads as a water-saving technology that is relevant to the ...

  5. DOE ZERH Webinar: Energy -- and Water -- Efficiency in the DOE...

    Energy Savers

    Energy -- and Water -- Efficiency in the DOE Zero Energy Ready Home Program DOE ZERH Webinar: Energy -- and Water -- Efficiency in the DOE Zero Energy Ready Home Program Watch the ...

  6. DOE ZERH Webinar: Efficient Hot Water Distribution II -- How...

    Energy Savers

    DOE ZERH Webinar: Efficient Hot Water Distribution II -- How to Get it Right (Text Version) Below is the text version of the webinar, Efficient Hot Water Distribution II -- How to ...

  7. Pasadena Water and Power- Commercial Energy Efficiency Rebate Program

    Energy.gov [DOE]

    Prior to purchasing equipment, contact Pasadena Water & Power for incentive availability information on the Energy Efficiency Partnering Program.

  8. Energy- and Water-Efficient Products | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    and Water-Efficient Products Energy- and Water-Efficient Products The Federal Energy Management Program (FEMP) provides resources and tools to help agencies purchase energy- and water-efficient products. Five legal authorities require agencies to use energy-efficient products: the Energy Independence and Security Act of 2007, the Energy Policy Act of 2005, Federal Acquisition Regulations, Executive Order (E.O.) 13693, and E.O. 13221. Browse energy-efficient product purchasing requirements, or

  9. DOE ZERH Webinar: Efficient Hot Water Distribution II: How to...

    Energy Savers

    II: How to Get it Right DOE ZERH Webinar: Efficient Hot Water Distribution II: How to Get ... Hot water distribution is one of these critical systems - affecting energy use , water ...

  10. Marietta Power & Water- Residential Energy Efficiency Rebate

    Energy.gov [DOE]

    Marietta Power & Water provides rebates for electric water heaters ($250) and electric and dual-fuel heat pumps ($150). If both a water heater and heat pump are installed simultaneously, a...

  11. Water Efficiency and ESPCs: How Effective are ESPCs at Integrating

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Innovative Water Measures? | Department of Energy and ESPCs: How Effective are ESPCs at Integrating Innovative Water Measures? Water Efficiency and ESPCs: How Effective are ESPCs at Integrating Innovative Water Measures? The Federal Energy Management Program investigated how effective energy savings performance contracts (ESPCs) are at integrating innovative water efficiency measures and identified ways to improve the process. This fact sheet shares the results of this assessment. Download

  12. New Residential Water Heater Concept Promises High Efficiency, Lower Cost |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Residential Water Heater Concept Promises High Efficiency, Lower Cost New Residential Water Heater Concept Promises High Efficiency, Lower Cost August 17, 2016 - 2:20pm Addthis A new class of gas-fired heat pump water heater systems, based on a novel semi-open sorption concept, replaces the evaporator in a traditional closed sorption device with a vapor-permeable membrane that more efficiently absorbs and transfers heat for residential applications. A new class of

  13. Federal Energy and Water Efficiency Project Financing | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Federal Energy and Water Efficiency Project Financing Federal Energy and Water Efficiency Project Financing The Federal Energy Management Program (FEMP) offers financing options for agencies that are ready to implement energy and water efficiency projects. Carefully matching available project financing options with specific situations can make the difference between a stalled, unfunded project and a successful project that generates energy and cost savings. To find the right project

  14. Downstream Savings: From Water Efficiency to Energy Savings

    Office of Energy Efficiency and Renewable Energy (EERE)

    Join this webinar to hear innovative measures Better Buildings Challenge partners are taking to improve water efficiency while reducing energy use.

  15. Rising Above the Water: New Orleans Implements Energy Efficiency...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    and Sustainability Practices Following Hurricanes Katrina and Rita (Fact Sheet) Rising Above the Water: New Orleans Implements Energy Efficiency and Sustainability Practices ...

  16. Best Management Practice #5: Water-Efficient Irrigation

    Energy.gov [DOE]

    Water efficiency must be considered from the initial irrigation system design phase through installation to ensure optimal performance. Consistent management and maintenance is also essential.

  17. Land Use and Water Efficiency in Current and Potential Future...

    Office of Scientific and Technical Information (OSTI)

    Ethanol Systems (Poster) Citation Details In-Document Search Title: Land Use and Water Efficiency in Current and Potential Future U.S. Corn and Brazilian Sugarcane Ethanol ...

  18. Chapter 23 - Environment, Energy and Water Efficiency, Renewable...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Occupational Safety, and Drug-free Workplace. Chapter 23 - Environment, Energy and Water Efficiency, Renewable Energy Technologies, Occupational Safety, and Drug-free Workplace. ...

  19. ZERH Webinar: Efficient Hot Water Distribution: You Know that Hot Water Distribution is Important (Text Version)

    Energy.gov [DOE]

    Here is the text version of the webinar Efficient Hot Water Distribution: You Know that Hot Water Distribution is Important, presented in September 2016. Watch the presentation.

  20. Water Efficient Energy Production for Geothermal Resources

    SciTech Connect (OSTI)

    GTO

    2015-06-01

    Water consumption in geothermal energy development occurs at several stages along the life cycle of the plant, during construction of the wells, piping, and plant; during hydroshearing and testing of the reservoir (for EGS); and during operation of the plant. These stages are highlighted in the illustration above. For more information about actual water use during these stages, please see the back of this sheet..

  1. Purchasing Energy-Efficient Residential Gas Storage Water Heaters |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Gas Storage Water Heaters Purchasing Energy-Efficient Residential Gas Storage Water Heaters The Federal Energy Management Program (FEMP) provides acquisition guidance for residential gas storage water heaters, a product category covered by ENERGY STAR efficiency requirements. Federal laws and requirements mandate that agencies purchase ENERGY STAR-qualified products or FEMP-designated products in all product categories covered by these programs and in any acquisition

  2. Purchasing Water-Efficient Faucets, Pre-Rinse Spray Valves, Showerhead...

    Energy Savers

    Products & Technologies Energy-Efficient Products Purchasing Water-Efficient Faucets, Pre-Rinse Spray Valves, Showerheads, Toilets, and Urinals Purchasing Water-Efficient ...

  3. McMinnville Water & Light- Commercial Energy Efficiency Rebate Programs

    Office of Energy Efficiency and Renewable Energy (EERE)

    McMinnville Water and Light Company offers a variety of rebates for commercial and industrial customers to make energy efficient improvements to eligible facilities. MW&L offers rebates in...

  4. DOE Zero Energy Ready Home Efficient Hot Water Distribution I...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    I -- What's At Stake Webinar (Text Version) DOE Zero Energy Ready Home Efficient Hot Water Distribution I -- What's At Stake Webinar (Text Version) Below is the text version of the...

  5. Glendale Water and Power- Small Business Energy Efficiency Rebate Program

    Energy.gov [DOE]

    Glendale Water and Power offers incentives to small business customers (monthly electric bill is less than $3,000) to encourage energy efficiency through the Smart Business Energy Saving Upgrade...

  6. Burbank Water & Power- Business Bucks Energy Efficiency Grant Program

    Energy.gov [DOE]

    Burbank Water and Power (BWP) offers the Business Bucks Grant Program to its small and mid-sized business customers for installation of energy efficient equipment. Businesses with monthly...

  7. Pasadena Water and Power- Residential Energy Efficiency Rebate Program

    Energy.gov [DOE]

    Pasadena Water and Power (PWP) offers rebates to residential customers on a wide variety of energy efficient technologies. Customers who purchase equipment from retailers located in Pasadena...

  8. Cedarburg Light & Water Utility- Residential Energy Efficiency Rebate Program

    Energy.gov [DOE]

    Cedarburg Light & Water (CL&W) offers rebates to residential customers for a variety of energy-efficient equipment and upgrades.  Through Wisconsin Focus on Energy, CL&W provides...

  9. ADVANCED, ENERGY-EFFICIENT HYBRID MEMBRANE SYSTEM FOR INDUSTRIAL WATER

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    REUSE | Department of Energy ADVANCED, ENERGY-EFFICIENT HYBRID MEMBRANE SYSTEM FOR INDUSTRIAL WATER REUSE ADVANCED, ENERGY-EFFICIENT HYBRID MEMBRANE SYSTEM FOR INDUSTRIAL WATER REUSE Research Triangle Institute - Research Triangle Park, NC A single hybrid system for industrial wastewater treatment and reuse that combines two known processes-forward osmosis and membrane distillation-will be developed and demonstrated. This system will use waste heat to treat a wide variety of waste streams at

  10. Rising Above the Water: New Orleans Implements Energy Efficiency and

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Sustainability Practices Following Hurricanes Katrina and Rita (Fact Sheet) | Department of Energy Rising Above the Water: New Orleans Implements Energy Efficiency and Sustainability Practices Following Hurricanes Katrina and Rita (Fact Sheet) Rising Above the Water: New Orleans Implements Energy Efficiency and Sustainability Practices Following Hurricanes Katrina and Rita (Fact Sheet) This fact sheet describes the technical assistance that the U.S. Department of Energy, through its National

  11. Propane Basics (Fact Sheet), Clean Cities, Energy Efficiency & Renewable Energy (EERE)

    Alternative Fuels and Advanced Vehicles Data Center

    Propane Basics Propane powers more than 143,000 vehicles in the United States and 23 million worldwide. 1,2 Fleets around the United States have successfully implemented propane vehicles in many types of applications, including school, shuttle, and transit buses as well as vans, taxis, law enforce- ment vehicles, street sweepers, and vocational trucks. Propane is also frequently used in off-road applications, such as forklifts, commercial landscape mowers and equipment, and other farm equipment.

  12. Water-Efficient Technology Opportunity: Advanced Cooling Tower Controls |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Advanced Cooling Tower Controls Water-Efficient Technology Opportunity: Advanced Cooling Tower Controls The Federal Energy Management Program (FEMP) identified advanced cooling tower controls as a water-saving technology that is relevant to the federal sector, is commercially available, and offers significant water-savings potential. This overview provides agencies with key information to deploy innovative products and systems that may otherwise be overlooked. It also

  13. Water-Efficient Technology Opportunity: Sprinkler Automatic Shut-Off

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Devices | Department of Energy Sprinkler Automatic Shut-Off Devices Water-Efficient Technology Opportunity: Sprinkler Automatic Shut-Off Devices The Federal Energy Management Program (FEMP) identified sprinkler automatic shut-off devices as a water-saving technology that is relevant to the federal sector, is commercially available, and offers significant water-savings potential. This overview provides agencies with key information to deploy innovative products and systems that may otherwise

  14. The Energy-Water Nexus: State and Local Roles in Efficiency & Water and Wastewater Treatment Plants

    Energy.gov [DOE]

    This presentation, given through the DOE's Technical Assitance Program (TAP), provides information on the Energy-Water Nexus: State and Local Roles in Efficiency & Water and Wastewater Treatment Plants.

  15. Increasing Federal Office Building Water Efficiency, Federal Energy Management Program (FEMP) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-04-01

    Quick guide to increasing Federal office building water efficiency, water management planning, performing a water audit, calculating a water balance, and best management practices.

  16. DOE/OER-sponsored basic research in high-efficiency photovoltaics

    SciTech Connect (OSTI)

    Deb, S.K.; Benner, J.P.

    1996-05-01

    A high-efficiency photovoltaic project involving many of the national laboratories and several universities has been initiated under the umbrella of the U.S. Department of Energy (DOE) Center of Excellence for the Synthesis and Processing of Advanced Materials. The objectives of this project are to generate advances in fundamental scientific understanding that will impact the efficiency, cost and reliability of thin-film photovoltaic cells. The project is focused on two areas. (1) Silicon-Based Thin Films, in which key scientific and technological problems involving amorphous and polycrystalline silicon thin films will be addressed, and (2) Next-Generation Thin-Film Photovoltaics, which will be concerned with the possibilities of new advances and breakthroughs in the materials and physics of photovoltaics using non-silicon-based materials.

  17. Water-Efficient Technology Opportunity: Steam Sterilizer Condensate

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Retrofit Kit | Department of Energy Steam Sterilizer Condensate Retrofit Kit Water-Efficient Technology Opportunity: Steam Sterilizer Condensate Retrofit Kit Steam sterilizers are heated by steam that condenses and flows to the trap drain beneath the sterilizer. Steam sterilizers are heated by steam that condenses and flows to the trap drain beneath the sterilizer. The Federal Energy Management Program (FEMP) identified steam sterilizer condensate retrofit kits as a water-saving technology

  18. Estimating the Cost and Energy Efficiency of a Solar Water Heater...

    Energy.gov (indexed) [DOE]

    Solar water heaters are more efficient the gas or electric heaters. | Chart credit ENERGY STAR Solar water heaters are more efficient the gas or electric heaters. | Chart credit...

  19. NASA's Marshall Space Flight Center Saves Water with High-Efficiency...

    Energy Savers

    NASA's Marshall Space Flight Center Saves Water with High-Efficiency Toilet and Urinal Program NASA's Marshall Space Flight Center Saves Water with High-Efficiency Toilet and ...

  20. Purchasing Energy-Efficient Commercial Gas Water Heaters

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Federal Energy Management Program (FEMP) provides acquisition guidance for commercial gas water heaters (CWHs), a product category covered by ENERGY STAR efficiency requirements. Federal laws and requirements mandate that agencies purchase ENERGY STAR-qualified products or FEMP-designated products in all product categories covered by these programs and in any acquisition actions that are not specifically exempted by law.

  1. Purchasing Energy-Efficient Water-Cooled Ice Machines

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Federal Energy Management Program (FEMP) provides efficiency requirements and acquisition guidance for water-cooled ice machines. Federal laws and requirements mandate that agencies purchase FEMP-designated products or ENERGY STAR-qualified products in all product categories covered by these programs and in any acquisition actions that are not specifically exempted by law.

  2. Highly efficient 6-stroke engine cycle with water injection

    DOE Patents [OSTI]

    Szybist, James P; Conklin, James C

    2012-10-23

    A six-stroke engine cycle having improved efficiency. Heat is recovered from the engine combustion gases by using a 6-stroke engine cycle in which combustion gases are partially vented proximate the bottom-dead-center position of the fourth stroke cycle, and water is injected proximate the top-dead-center position of the fourth stroke cycle.

  3. Purchasing Energy-Efficient Residential Gas Storage Water Heaters

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Federal Energy Management Program (FEMP) provides acquisition guidance for residential gas storage water heaters, a product category covered by ENERGY STAR efficiency requirements. Federal laws and requirements mandate that agencies purchase ENERGY STAR-qualified products or FEMP-designated products in all product categories covered by these programs and in any acquisition actions that are not specifically exempted by law.

  4. Energy-Efficiency & Water Institute Research Facility, Purdue University, (IN)

    SciTech Connect (OSTI)

    Nnanna, Agbai

    2015-01-30

    The renovation of the Schneider Avenue Building to construct two research laboratories within the building is complete. The research laboratories are for the Purdue Calumet Water Institute and the Energy Efficiency and Reliability Center. The Water Institute occupies approximately 1000+ SF of research space plus supporting offices. The Energy-Efficiency Center occupies approximately 1000+ SF that houses the research space. The labs will enhance the Water & Energy Institute’s research capabilities necessary to tackle these issues through the development of practical approaches critical to local government and industry. The addition of these research laboratories to the Purdue University Calumet campus is in both direct support of the University’s Strategic Plan as well as the 2008 Campus Master Plan that identifies a 20% shortage of research space.

  5. Estimating Costs and Efficiency of Storage, Demand, and Heat Pump Water

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Heaters | Department of Energy Costs and Efficiency of Storage, Demand, and Heat Pump Water Heaters Estimating Costs and Efficiency of Storage, Demand, and Heat Pump Water Heaters A water heater's energy efficiency is determined by the energy factor (EF), which is based on the amount of hot water produced per unit of fuel consumed over a typical day. The higher the energy factor, the more efficient the water heater. A water heater's energy efficiency is determined by the energy factor (EF),

  6. Estimating the Cost and Energy Efficiency of a Solar Water Heater |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy the Cost and Energy Efficiency of a Solar Water Heater Estimating the Cost and Energy Efficiency of a Solar Water Heater Solar water heaters are more efficient the gas or electric heaters. | Chart credit ENERGY STAR Solar water heaters are more efficient the gas or electric heaters. | Chart credit ENERGY STAR Solar water heating systems usually cost more to purchase and install than conventional water heating systems. However, a solar water heater can usually save you

  7. Ultrahigh-Efficiency Capacitive Devices For Continuous Water Deionization

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Philip Cox (Presenter) Mainstream Engineering U.S. DOE Advanced Manufacturing Office Program Review Meeting Washington, D.C. June 14-15, 2016 This presentation does not contain any proprietary, confidential, or otherwise restricted information. Project Objective  The overall project objective is to develop a membrane free high efficiency system for desalination of brackish water based on capacitive electrode structures.  Current small scale reverse osmosis based systems are energy

  8. Water-Efficient Technology Opportunity: Multi-Stream Rotational Sprinkler

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Heads | Department of Energy Multi-Stream Rotational Sprinkler Heads Water-Efficient Technology Opportunity: Multi-Stream Rotational Sprinkler Heads Multi-stream rotational sprinkler heads can be used for irrigation systems in place of traditional fixed-spray nozzles. Multi-stream rotational sprinkler heads can be used for irrigation systems in place of traditional fixed-spray nozzles. The Federal Energy Management Program (FEMP) identified multi-stream rotational sprinkler heads as a

  9. Estimating the Cost and Energy Efficiency of a Solar Water Heater...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Estimating the Cost and Energy Efficiency of a Solar Water Heater Estimating the Cost and Energy Efficiency of a Solar Water Heater March 2, 2015 - 3:09pm Addthis Solar water...

  10. Federal energy efficiency and water conservation funding study

    SciTech Connect (OSTI)

    1998-01-01

    This report contains the results of a study required by section 162 of the Energy Policy Act of 1992 (EPAct). It outlines options for financing energy and water conservation measures at Federal facilities as required by Part 3 of Title V of the National Energy Policy and Conservation Act (NECPA) (42 U.S.C. 8251 et seq.) as amended by EPAct. It addresses: (1) the estimated Federal financial investment necessary to install energy and water conservation measures to meet NECPA and Executive Order requirements; (2) the use of revolving funds and other funding mechanisms which offer stable, long-term financing of energy and water conservation measures; and (3) the means for capitalizing such funds. On March 8, 1994, President Clinton signed Executive Order 12902. This Executive Order is an aggressive mandate to improve energy efficiency and water conservation in Federal buildings nationwide. This Executive Order is designed to meet and exceed requirements for Federal energy and water efficiency that were contained in section 152 of EPAct. Section 152 mandated that Federal agencies use all cost effective measures with less than a ten year payback to reduce energy consumption in their facilities by 20% by the year 2000 compared to 1985 levels. In addition, Executive Order 12902 established a requirement to use cost effective measures to reduce energy use by fiscal year 2005 by 30% compared to 1985 energy use. This report provides estimates for the energy and water conservation investments needed to achieve the NECPA and Executive Order goals as well as estimates for the contribution from various funding sources and a review of the mechanisms for funding these investments.

  11. Energy Basics | Department of Energy

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    The basics about renewable energy and energy efficiency ... Basics Hydrogen and Fuel Cell Technology Basics ... in the summer and allow sun to shine through the windows ...

  12. Water Efficiency and ESPCs: How Effective are ESPCs at Integrating Innovative Water Measures?

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    effective are ESPCs at integrating innovative water measures? The Department of Energy's (DOE) Federal Energy Management Program (FEMP) administers energy savings performance contracts (ESPCs). These contracts form a partnership between energy service companies (ESCOs) and federal agencies to implement energy and water efficiency mea- sures with guaranteed savings. As of 2014, DOE ESPC projects represent over $3 billion in total investment. In 2014, FEMP tasked Pacific Northwest National

  13. ADVANCED, ENERGY-EFFICIENT HYBRID MEMBRANE SYSTEM FOR INDUSTRIAL WATER REUSE

    Energy.gov [DOE]

    Demonstrate an advanced water treatment and reuse process in a single hybrid system that combines forward osmosis with membrane distillation to achieve greater efficiency and increased water reuse.

  14. What Have You Done to Ensure Your Water Pipes are Efficient and...

    Energy Savers

    Have You Done to Ensure Your Water Pipes are Efficient and Safe? What Have You Done to Ensure Your Water Pipes are Efficient and Safe? March 17, 2011 - 7:30am Addthis This week, ...

  15. DOE Zero Energy Ready Home Efficient Hot Water Distribution I-- What's At Stake Webinar (Text Version)

    Energy.gov [DOE]

    Below is the text version of the webinar, Efficient Hot Water Distribution I -- What's At Stake, presented in January 2014.

  16. Comment submitted by the Alliance for Water Efficiency (AWE) regarding the Energy Star Verification Testing Program

    Energy.gov [DOE]

    This document is a comment submitted by the Alliance for Water Efficiency (AWE) regarding the Energy Star Verification Testing Program

  17. Cedarburg Light & Water Utility- Commercial Energy Efficiency Rebate Program

    Energy.gov [DOE]

    The Request for Proposals (RFP) for Energy Efficiency program is designed to encourage investment by large commercial and industrial utility customers in energy efficient improvements. Up to $2...

  18. How To Buy Energy- and Water-Efficient Products for the Federal Government

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    | Department of Energy How To Buy Energy- and Water-Efficient Products for the Federal Government How To Buy Energy- and Water-Efficient Products for the Federal Government The requirement to buy energy- and water-efficient products applies to federal purchases made through any procurement pathway (e.g., purchase cards, e-retailers, and solicitations) and to a wide variety of federal projects. The Federal Energy Management Program's (FEMP's) Buy Energy-Efficient Products buyer overview fact

  19. DOE ZERH Webinar: Efficient Hot Water Distribution I: What's...

    Office of Environmental Management (EM)

    Hot water distribution is one of these critical systems - affecting energy use , water consumption, and resident convenience and comfort. In this initial session Gary Klein covers ...

  20. Evaporative Cooling Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Evaporative Cooling Basics Evaporative Cooling Basics August 16, 2013 - 1:53pm Addthis Evaporative cooling uses evaporated water to naturally and energy-efficiently cool. An illustration of an evaporative cooler. In this example of an evaporative cooler, a small motor (top) drives a large fan (center) which blows air out the bottom and into your home. The fan sucks air in through the louvers around the box, which are covered with water-saturated absorbent material. How Evaporative Coolers Work

  1. Kitchen Appliance Upgrades Improve Water Efficiency at U.S. Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Defense Exchange Facilities | Department of Energy Kitchen Appliance Upgrades Improve Water Efficiency at U.S. Department of Defense Exchange Facilities Kitchen Appliance Upgrades Improve Water Efficiency at U.S. Department of Defense Exchange Facilities Kitchen Appliance Upgrades Improve Water Efficiency at U.S. Department of Defense Exchange Facilities Case study details the U.S. Department of Defense (DOD) Exchange (formerly the Army and Air Force Exchange Service), which took a

  2. Energy -- and Water -- Efficiency in the DOE Zero Energy Ready Home Program

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Webinar (Text Version) | Department of Energy -- and Water -- Efficiency in the DOE Zero Energy Ready Home Program Webinar (Text Version) Energy -- and Water -- Efficiency in the DOE Zero Energy Ready Home Program Webinar (Text Version) Below is the text version of the webinar, Energy -- and Water -- Efficiency in the DOE Zero Energy Ready Home Program, presented in October 2014. Watch the presentation. GoToWebinar voice: The broadcast is now starting. All attendees are in listen-only mode.

  3. Making Water Heaters More Efficient | GE Global Research

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    ... This makes tank-based water heaters the de-facto standard. Thinking about how tank-based water heaters worked, I found it just silly that they maintain the same temperature all the ...

  4. Kitchen Appliance Upgrades Improve Water Efficiency at DOD Exchange...

    Energy Savers

    to think about performing water audits. Kitchens can be out of sight, out of mind; a commercial kitchen, however, can consume large amounts of water and energy if inefficient ...

  5. DOE ZERH Webinar: Efficient Hot Water Distribution I-- What's At Stake (Text Version)

    Energy.gov [DOE]

    Below is the text version of the webinar, Efficient Hot Water Distribution I -- What's At Stake, presented in January 2014. Watch the presentation.

  6. DOE ZERH Webinar: Efficient Hot Water Distribution II-- How to Get it Right (Text Version)

    Energy.gov [DOE]

    Below is the text version of the webinar, Efficient Hot Water Distribution II -- How to Get it Right, presented in January 2014. Watch the presentation.

  7. Correction. Sunlight absorption in waterefficiency and design implications for photoelectrochemical devices

    DOE PAGES-Beta [OSTI]

    Döscher, H.; Geisz, J. F.; Deutsch, T. G.; Turner, J. A.

    2016-04-15

    Correction for 'Sunlight absorption in water - efficiency and design implications for photoelectrochemical devices' by H. Doscher et al., Energy Environ. Sci., 2014, 7, 2951-2956.

  8. North Branch Municipal Water & Light- Commercial & Industrial Energy Efficiency Rebate Program

    Energy.gov [DOE]

    North Branch Municipal Water & Light provides incentives for its commercial and industrial customers to improve the energy efficiency of facilities. Rebates are available for a variety of...

  9. McMinnville Water and Light- Residential Energy Efficiency Rebate Program

    Energy.gov [DOE]

    McMinnville Water and Light (MWL) offers rebates on energy efficient homes, appliances and equipment to residential customers. Rebates are valid on: 

  10. DOE ZERH Webinar: Efficient Hot Water Distribution I: What's at Stake

    Energy.gov [DOE]

    Zero Energy Ready Homes include critical systems to ensure both energy efficiency and performance. Hot water distribution is one of these critical systems – affecting energy use , water consumption...

  11. DOE ZERH Webinar: Efficient Hot Water Distribution II: How to Get it Right

    Energy.gov [DOE]

    Zero Energy Ready Homes include critical systems to ensure both energy efficiency and performance. Hot water distribution is one of these critical systems – affecting energy use , water consumption...

  12. Hydrogen Basics | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Hydrogen Basics Hydrogen is a clean-burning fuel, and when combined with oxygen in a fuel cell, it produces heat and electricity with only water vapor as a by-product. But hydrogen does not exist freely in nature: it is only produced from other sources of energy, so it is often referred to as an energy carrier, that is, an efficient way to store and transport energy. A photo of a Ford hydrogen-powered internal combustion engine (H2ICE) bus at NREL's National Wind Technology Center (NWTC). A

  13. New Braunfels Utilities- Energy Efficiency and Water Conservation Rebate Programs

    Energy.gov [DOE]

    New Braunfels Utilities offer a variety of programs encouraging its customers to make their homes more energy efficiency. Rebates are available for washing machines, air conditioners, heat pumps,...

  14. Natural Gas Basics (Brochure), U.S. Department of Energy (DOE), Energy Efficiency & Renewable Energy (EERE)

    Alternative Fuels and Advanced Vehicles Data Center

    Gas Basics Natural gas powers about 150,000 vehicles in the United States and roughly 22 million vehicles worldwide. 1 Natural gas vehicles (NGVs) are a good choice for high-mileage fleets- such as buses, taxis, and refuse vehicles-that are centrally fueled or operate within a lim- ited area or along a route with natural gas fueling stations. The advantages of natural gas as an alternative fuel include its domestic availability, estab- lished distribution network, relatively low cost, and emis-

  15. Water Efficiency in Federal Buildings and Campuses | Department of Energy

    Energy Savers

    Environmental Protection Agency (EPA) built a successful water conservation program and reduced potable water use through a series of initiatives at EPA laboratories. EPA completed projects in all of the U.S. Department of Energy (DOE) Federal Energy Management Program's (FEMP) 14 Best Management Practice (BMP) categories. The projects highlighted below demonstrate EPA's ability to reduce water use in the laboratory/medical equipment BMP category by implementing vacuum pump and steam steril-

  16. Loveland Water & Power- Commercial and Industrial Energy Efficiency Rebate Program

    Energy.gov [DOE]

    Loveland Water & Power, in conjunction with the Platte River Power Authority provides businesses incentives for new construction projects and existing building retrofits. The Electric...

  17. Improving the efficiency of water splitting in dye-sensitized...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    bound to the water oxidation catalyst, a colloidal iridium oxide particle, and is coadsorbed onto a porous titanium dioxide electrode with a Ruthenium polypyridyl sensitizer. ...

  18. City Water Light and Power - Residential Energy Efficiency Rebate...

    Energy.gov (indexed) [DOE]

    Clothes Washers Water Heaters Heat Pumps Building Insulation Maximum Rebate Building Insulation: 500 Program Info Sector Name Utility Administrator Energy Services Office Website...

  19. Loveland Water & Power - Commercial and Industrial Energy Efficiency...

    Energy.gov (indexed) [DOE]

    250 Office Lighting: 5 - 20 SensorsControls: 7 - 90 Summary Loveland Water & Power, in conjunction with the Platte River Power Authority provides businesses...

  20. Water Efficiency Improvements At Various Environmental Protection Agency Sites

    SciTech Connect (OSTI)

    2011-03-24

    The U.S. Environmental Protection Agency (EPA) built a successful water conservation program and reduced potable water use through a series of initiatives at EPA laboratories. The projects highlighted in this case study demonstrate EPA’s ability to reduce water use in laboratory and medical equipment by implementing vacuum pump and steam sterilizer replacements and retrofits. Due to the success of the initial vacuum pump and steam sterilizer projects described here, EPA is implementing similar projects at several laboratories throughout the nation.

  1. Efficient Solutions for Existing Homes Case Study: Solar Water...

    Energy Savers

    The developer installed SDHW to reduce fossil-fuel consumption, and CARB has been monitoring the system since its completion. Solar Water Heating in Multifamily Buildings (703.51 ...

  2. DOE Zero Energy Ready Home Efficient Hot Water Distribution II...

    Energy.gov (indexed) [DOE]

    with the Challenge Home program and here to set this up for you. Today's session on hot water distribution is one of a continuing series of tech training webinars to support our...

  3. Best Management Practice #4: Water-Efficient Landscaping

    Office of Energy Efficiency and Renewable Energy (EERE)

    Traditional landscapes require supplemental water to thrive in most locations. Kentucky bluegrass, for example, is native to regions that receive in excess of 40 inches per year of precipitation,...

  4. Glendale Water and Power- Large Business Energy Efficiency Program

    Energy.gov [DOE]

    Glendale Water and Power (GWP) offers a rebate to its medium and large business customers with electric bills of more than $3000 per month (electric usage of 250,000 kWh annually ~ $36,000 per year...

  5. Energy-Efficient Controls for Multifamily Domestic Hot Water

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    a time schedule * Time schedule off periods should approximate the peak DHW usage periods at the building. * When a user demands hot water during an "off" period, they will waste ...

  6. Purchasing Energy-Efficient Residential Whole-Home Gas Tankless Water

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Heaters | Department of Energy Whole-Home Gas Tankless Water Heaters Purchasing Energy-Efficient Residential Whole-Home Gas Tankless Water Heaters The Federal Energy Management Program (FEMP) provides acquisition guidance for residential whole-home gas tankless water heaters, a product category covered by ENERGY STAR efficiency requirements. Federal laws and requirements mandate that agencies purchase ENERGY STAR-qualified products or FEMP-designated products in all product categories

  7. Land Use and Water Efficiency in Current and Potential Future U.S. Corn and

    Office of Scientific and Technical Information (OSTI)

    Brazilian Sugarcane Ethanol Systems (Poster) (Conference) | SciTech Connect Land Use and Water Efficiency in Current and Potential Future U.S. Corn and Brazilian Sugarcane Ethanol Systems (Poster) Citation Details In-Document Search Title: Land Use and Water Efficiency in Current and Potential Future U.S. Corn and Brazilian Sugarcane Ethanol Systems (Poster) The potential for unintended consequences of biofuels--competition for land and water--necessitates that sustainable biofuel expansion

  8. AMO Deputy Director Addresses Water-Energy Nexus at 2016 Energy Efficiency

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Global Forum | Department of Energy Deputy Director Addresses Water-Energy Nexus at 2016 Energy Efficiency Global Forum AMO Deputy Director Addresses Water-Energy Nexus at 2016 Energy Efficiency Global Forum May 20, 2016 - 3:49pm Addthis From left to right: Moderator Ramola Musante, panelists Ron Voglewede, Bill Varley, Rob Ivester, and S. Raghupathy. From left to right: Moderator Ramola Musante, panelists Ron Voglewede, Bill Varley, Rob Ivester, and S. Raghupathy. Water is a part of every

  9. Design and development testing of an improved high-efficiency water heater

    SciTech Connect (OSTI)

    Vasilakis, A.D.; Gerstmann, J.; Vineyard, E.A.

    1983-01-01

    A high-efficiency water heater is described which uses a design approach quite different from the conventional center-flue water heater. While high efficiency might have been more readily achieved through the use of a powered combustion system, a cost/benefit analysis showed that a natural-draft system would be more cost effective for residential water heating. The subsequent improvements in a prototype and the current performance are described.

  10. Energy Efficiency Design Options for Residential Water Heaters: Economic Impacts on Consumers

    SciTech Connect (OSTI)

    Lekov, Alex; Franco, Victor; Meyers, Steve; Thompson, Lisa; Letschert, Virginie

    2010-11-24

    The U.S. Department of Energy (DOE) recently completed a rulemaking process in which it amended the existing energy efficiency standards for residential water heaters. A key factor in DOE?s consideration of new standards is the economic impacts on consumers. Determining such impacts requires a comparison of the additional first cost of energy efficiency design options with the savings in operating costs. This paper describes the method used to conduct the life-cycle cost (LCC) and payback period analysis for gas and electric storage water heaters. It presents the estimated change in LCC associated with more energy-efficient equipment, including heat pump electric water heaters and condensing gas water heaters, for a representative sample of U.S. homes. The study included a detailed accounting of installation costs for the considered design options, with a focus on approaches for accommodating the larger dimensions of more efficient water heaters. For heat pump water heaters, the study also considered airflow requirements, venting issues, and the impact of these products on the indoor environment. The results indicate that efficiency improvement relative to the baseline design reduces the LCC in the majority of homes for both gas and electric storage water heaters, and heat pump electric water heaters and condensing gas water heaters provide a lower LCC for homes with large rated volume water heaters.

  11. Sailing into the Mainstream of Energy and Water Efficiency, Affordably |

    Energy Savers

    Health, Safety and Security U.S. Department of Energy POLICY Washington, D.C. Approved: 4-25-11 SUBJECT: INTEGRATED SAFETY MANAGEMENT POLICY PURPOSE AND SCOPE To establish the Department of Energy's (DOE) expectation for safety, 1 including integrated safety management that will enable the Department's mission goals to be accomplished efficiently while ensuring safe operations at all departmental facilities and activities. This Policy cancels and supersedes DOE Policy (P) 411.1, Safety

  12. Efficient Solar Concentrators: Affordable Energy from Water and Sunlight

    SciTech Connect (OSTI)

    2010-01-01

    Broad Funding Opportunity Announcement Project: Teledyne is developing a liquid prism panel that tracks the position of the sun to help efficiently concentrate its light onto a solar cell to produce power. Typically, solar tracking devices have bulky and expensive mechanical moving parts that require a lot of power and are often unreliable. Teledyne’s liquid prism panel has no bulky and heavy supporting parts—instead it relies on electrowetting. Electrowetting is a process where an electric field is applied to the liquid to control the angle at which it meets the sunlight above and to control the angle of the sunlight to the focusing lensthe more direct the angle to the focusing lens, the more efficiently the light can be concentrated to solar panels and converted into electricity. This allows the prism to be tuned like a radio to track the sun across the sky and steer sunlight into the solar cell without any moving mechanical parts. This process uses very little power and requires no expensive supporting hardware or moving parts, enabling efficient and quiet rooftop operation for integration into buildings.

  13. High-efficiency commercial water-heater development. Supplemental technical report, August 1984-August 1985

    SciTech Connect (OSTI)

    Sespaniak, M.P.; Demetri, E.P.; Gerstmann, J.

    1985-08-01

    The development of a condensing water heater for commercial applications was completed. The selected concept consists of a high-efficiency water heater connected by appropriate plumbing to a stratified-temperature storage tank. A number of pre-production prototypes were fabricated and installed at nine representative commercial sites. An initial year of field tests, starting in April 1983 and concluding in July 1984, consisted of a side-by-side comparison with the existing conventional water heater at each site. The test results obtained demonstrate standby loss rates less than one-fifth of conventional values and service efficiencies which average 32% higher than conventional-system efficiencies.

  14. Design and performance of a high-efficiency commercial water heater

    SciTech Connect (OSTI)

    Demetri, E.P.; Gerstmann, J.; Vasilakis, A.D.

    1984-05-01

    A gas-fired commercial water heater has been developed which achieves a steady-state efficiency of over 95 percent and can obtain, overall service efficiencies above 90 percent in many applications. These high levels of efficiency are obtained by operating in the condensing mode over a substantial portion of the duty cycle. The use of a power burner and a coil-type heat exchanger results in a compact configuration which produces both high efficiency and low emissions. The design, operating principles, and performance characteristics of the water heater are described.

  15. National and Regional Water and Wastewater Rates For Use inCost-Benefit Models and Evaluations of Water Efficiency Programs

    SciTech Connect (OSTI)

    Fisher, Diane C.; Whitehead, Camilla Dunham; Melody, Moya

    2006-09-01

    Calculating the benefits and costs of water conservation orefficiency programs requires knowing the marginal cost of the water andwastewater saved by those programs. Developing an accurate picture of thepotential cost savings from water conservation requires knowing the costof the last few units of water consumed or wastewater released, becausethose are the units that would be saved by increased water efficiency.This report describes the data we obtained on water and wastewater ratesand costs, data gaps we identified, and other issues related to using thedata to estimate the cost savings that might accrue from waterconservation programs. We identified three water and wastewater ratesources. Of these, we recommend using Raftelis Financial Corporation(RFC) because it: a) has the most comprehensive national coverage; and b)provides greatest detail on rates to calculate marginal rates. The figurebelow shows the regional variation in water rates for a range ofconsumption blocks. Figure 1A Marginal Rates of Water Blocks by Regionfrom RFC 2004Water and wastewater rates are rising faster than the rateof inflation. For example, from 1996 to 2004 the average water rateincreased 39.5 percent, average wastewater rate increased 37.8 percent,the CPI (All Urban) increased 20.1 percent, and the CPI (Water andSewerage Maintenance) increased 31.1 percent. On average, annualincreases were 4.3 percent for water and 4.1 percent for wastewater,compared to 2.3 percent for the All Urban CPI and 3.7 percent for the CPIfor water and sewerage maintenance. If trends in rates for water andwastewater rates continue, water-efficient products will become morevaluable and more cost-effective.

  16. ZERH Webinar: Efficient Hot Water Distribution: You Know that Hot Water Distribution is Important

    Energy.gov [DOE]

    In this session, you’ll learn about best practices for designing hot water distribution layouts that meet WaterSense and DOE Zero Energy Ready Home program specifications from Jonah Schein of the EPA WaterSense program.

  17. Feasibility study of broadband efficient ''water window'' source

    SciTech Connect (OSTI)

    Higashiguchi, Takeshi; Yugami, Noboru; Otsuka, Takamitsu; Jiang Weihua; Endo, Akira; Li Bowen; Dunne, Padraig; O'Sullivan, Gerry

    2012-01-02

    We demonstrate a table-top broadband emission water window source based on laser-produced high-Z plasmas. Resonance emission from multiply charged ions merges to produce intense unresolved transition arrays (UTAs) in the 2-4 nm region, extending below the carbon K edge (4.37 nm). Arrays resulting from n=4-n=4 transitions are overlaid with n=4-n=5 emission and shift to shorter wavelength with increasing atomic number. An outline of a microscope design for single-shot live cell imaging is proposed based on a bismuth plasma UTA source, coupled to multilayer mirror optics.

  18. High Efficiency R-744 Commercial Heat Pump Water Heaters

    SciTech Connect (OSTI)

    Elbel, Dr. Stefan W.; Petersen, Michael

    2013-04-25

    The project investigated the development and improvement process of a R744 (CO2) commercial heat pump water heater (HPWH) package of approximately 35 kW. The improvement process covered all main components of the system. More specific the heat exchangers (Internal heat exchanger, Evaporator, Gas cooler) as well as the expansion device and the compressor were investigated. In addition, a comparison to a commercially available baseline R134a unit of the same capacity and footprint was made in order to compare performance as well as package size reduction potential.

  19. Improve Chilled Water System Peformance: Chilled Water System Analysis Tool (CWSAT) Improves Efficiency

    SciTech Connect (OSTI)

    2010-06-25

    This fact sheet describes how the Industrial Technologies Program Chilled Water System Analysis Tool (CWSAT) can help optimize the performance of of industrial chilled water systems.

  20. The Energy-Water Nexus: State and Local Roles in Efficiency & Water and Wastewater Treatment Plants

    Energy.gov [DOE]

    This webinar, held on Sept. 11, 2013, covers the energy water nexus for state and local water and wastewater treatment plants.

  1. Kitchen Appliance Upgrades Improve Water Efficiency at U.S. Department...

    Energy.gov (indexed) [DOE]

    Kitchen Appliance Upgrades Improve Water Efficiency at U.S. Department of Defense Exchange Facilities Case study details the U.S. Department of Defense (DOD) Exchange (formerly the ...

  2. Tri-County Electric Cooperative- Energy Efficient Water Heater Rebate Program

    Energy.gov [DOE]

    Tri-County Electric Cooperative offers a $75 rebate on the purchase of energy-efficient electric water heaters. The rebate is valid for new or replacement units which have an Energy Factor Rating...

  3. Purchasing Energy-Efficient Water-Cooled Electric Chillers | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Electric Chillers Purchasing Energy-Efficient Water-Cooled Electric Chillers The Federal Energy Management Program (FEMP) provides acquisition guidance for water-cooled electric chillers, a product category covered by FEMP efficiency requirements. Federal laws and requirements mandate that agencies purchase ENERGY STAR-qualified or FEMP-designated products in all product categories covered by these programs and in any acquisition actions that are not specifically exempted by law.

  4. An International Survey of Electric Storage Tank Water Heater Efficiency and Standards

    SciTech Connect (OSTI)

    Johnson, Alissa; Lutz, James; McNeil, Michael A.; Covary, Theo

    2013-11-13

    Water heating is a main consumer of energy in households, especially in temperate and cold climates. In South Africa, where hot water is typically provided by electric resistance storage tank water heaters (geysers), water heating energy consumption exceeds cooking, refrigeration, and lighting to be the most consumptive single electric appliance in the home. A recent analysis for the Department of Trade and Industry (DTI) performed by the authors estimated that standing losses from electric geysers contributed over 1,000 kWh to the annual electricity bill for South African households that used them. In order to reduce this burden, the South African government is currently pursuing a programme of Energy Efficiency Standards and Labelling (EES&L) for electric appliances, including geysers. In addition, Eskom has a history of promoting heat pump water heaters (HPWH) through incentive programs, which can further reduce energy consumption. This paper provides a survey of international electric storage water heater test procedures and efficiency metrics which can serve as a reference for comparison with proposed geyser standards and ratings in South Africa. Additionally it provides a sample of efficiency technologies employed to improve the efficiency of electric storage water heaters, and outlines programs to promote adoption of improved efficiency. Finally, it surveys current programs used to promote HPWH and considers the potential for this technology to address peak demand more effectively than reduction of standby losses alone

  5. Basic Energy Sciences

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ... Batteries Electric Drive Systems Hydrogen Materials & Components Compatibility Hydrogen ...

  6. High-efficiency commercial water heater development. Final report, November 1980-August 1984

    SciTech Connect (OSTI)

    Demetri, E.P.; Sespaniak, M.P.; Gerstmann, J.

    1984-11-01

    The development of a condensing water heater for commercial applications was completed. The selected concept consists of a high-efficiency water heater connected by appropriate plumbing to a stratified-temperature storage tank. A number of pre-production prototypes were fabricated and installed at nine representative commercial sites. Field tests were initiated in April 1983 and concluded in July 1984. These consisted of a side-by-side comparison with the existing conventional water heater at each site. The final test results obtained demonstrate standby loss rates less than one-fifth of conventional values and service efficiencies which average 32% higher than conventional system efficiencies. The comparative performance data obtained under actual usage conditions show that the condensing water heater would provide average annual cost savings of $920 per year and corresponding paybacks in the range of 0.9-1.5 years.

  7. Development and testing of an improved high-efficiency water heater

    SciTech Connect (OSTI)

    Vasilakis, A.D.; Gerstmann, J.; Vineyard, E.A.

    1983-01-01

    This paper describes a high-efficiency water heater that uses a design approach quite different from the conventional center-flue water heater. While high efficiency might have been more readily achieved through the use of a powered combustion system, a cost/benefit analysis showed that a natural-draft system would be more cost-effective for residential water heating./sup 1/ The design and performance of an early prototype is described in a previous paper./sup 2/ The early prototype achieved a service efficiency of 62.5% versus a project goal of 66.3% based on the DOE Test Procedures for Water Heaters./sup 3/ This paper describes the subsequent improvements and the current performance.

  8. High-efficiency commercial water heater development. Annual report Jan-Dec 83

    SciTech Connect (OSTI)

    Demetri, E.P.; Vasilakis, A.D.; Gerstmann, J.

    1984-01-01

    The development of a condensing water heater for commercial applications has been completed. The selected concept consists of a high-efficiency water heater connected by appropriate plumbing to a stratified-temperature storage tank. A number of pre-production prototypes have been fabricated and installed at nine representative commercial sites. Field tests were initiated in April 1983. These consist of a side-by-side comparison with the existing conventional water heater at each site. The test results obtained to date demonstrate standby loss rates less than one-fifth of conventional values and service efficiencies which average 33% higher than conventional system efficiencies. The comparative performance data obtained under actual usage conditions show that the condensing water heater would provide average annual cost savings of $950 per year and corresponding paybacks in the range of 0.6-1.5 years.

  9. Research and development of a high efficiency gas-fired water heater. Volume 2. Task reports

    SciTech Connect (OSTI)

    Vasilakis, A.D.; Pearson, J.F.; Gerstmann, J.

    1980-01-01

    Design and development of a cost-effective high efficiency gas-fired water heater to attain a service efficiency of 70% (including the effect of exfiltration) and a service efficiency of 78% (excluding exfiltration) for a 75 GPD draw at a 90/sup 0/F temperature rise, with a stored water to conditioned air temperature difference of 80/sup 0/F, are described in detail. Based on concept evaluation, a non-powered natural draft water heater was chosen as the most cost-effective design to develop. The projected installed cost is $374 compared to $200 for a conventional unit. When the project water heater is compared to a conventional unit, it has a payback of 3.7 years and life cycle savings of $350 to the consumer. A prototype water heater was designed, constructed, and tested. When operated with sealed combustion, the unit has a service efficiency of 66.4% (including the effect of exfiltration) below a burner input of 32,000 Btu/h. In the open combustion configuration, the unit operated at a measured efficiency of 66.4% Btu/h (excluding exfiltration). This compares with a service efficiency of 51.3% for a conventional water heater and 61% for a conventional high efficiency unit capable of meeting ASHRAE 90-75. Operational tests showed the unit performed well with no evidence of stacking or hot spots. It met or exceeded all capacity or usage tests specified in the program test plan and met all emission goals. Future work will concentrate on designing, building, and testing pre-production units. It is anticipated that both sealed combustion and open draft models will be pursued.

  10. Energy Basics

    Education Teach & Learn

    Students will complete a scavenger hunt worksheet in order to learn about the basics of energy and its sources.

  11. A Highly Efficient Six-Stroke Internal Combustion Engine Cycle with Water Injection for In-Cylinder Exhaust Heat Recovery

    SciTech Connect (OSTI)

    Conklin, Jim; Szybist, James P

    2010-01-01

    A concept is presented here that adds two additional strokes to the four-stroke Otto or Diesel cycle that has the potential to increase fuel efficiency of the basic cycle. The engine cycle can be thought of as a 4 stroke Otto or Diesel cycle followed by a 2-stroke heat recovery steam cycle. Early exhaust valve closing during the exhaust stroke coupled with water injection are employed to add an additional power stroke at the end of the conventional four-stroke Otto or Diesel cycle. An ideal thermodynamics model of the exhaust gas compression, water injection at top center, and expansion was used to investigate this modification that effectively recovers waste heat from both the engine coolant and combustion exhaust gas. Thus, this concept recovers energy from two waste heat sources of current engine designs and converts heat normally discarded to useable power and work. This concept has the potential of a substantial increase in fuel efficiency over existing conventional internal combustion engines, and under appropriate injected water conditions, increase the fuel efficiency without incurring a decrease in power density. By changing the exhaust valve closing angle during the exhaust stroke, the ideal amount of exhaust can be recompressed for the amount of water injected, thereby minimizing the work input and maximizing the mean effective pressure of the steam expansion stroke (MEPsteam). The value of this exhaust valve closing for maximum MEPsteam depends on the limiting conditions of either one bar or the dew point temperature of the expansion gas/moisture mixture when the exhaust valve opens to discard the spent gas mixture in the sixth stroke. The range of MEPsteam calculated for the geometry of a conventional gasoline spark-ignited internal combustion engine and for plausible water injection parameters is from 0.75 to 2.5 bars. Typical combustion mean effective pressures (MEPcombustion) of naturally aspirated gasoline engines are up to 10 bar, thus this

  12. NASA's Marshall Space Flight Center Saves Water With High-Efficiency Toilet and Urinal Program

    SciTech Connect (OSTI)

    2011-02-22

    The National Aeronautics and Space Administration’s (NASA) Marshall Space Flight Center (MSFC) has a longstanding, successful sustainability program that focuses on energy and water efficiency as well as environmental protection. Because MSFC was built in the 1960s, most of the buildings house outdated, inefficient restroom fixtures. The facility engineering team at MSFC developed an innovative efficiency model for replacing these older toilets and urinals.

  13. What Have You Done to Ensure Your Water Pipes are Efficient and Safe? |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Have You Done to Ensure Your Water Pipes are Efficient and Safe? What Have You Done to Ensure Your Water Pipes are Efficient and Safe? March 17, 2011 - 7:30am Addthis This week, Elizabeth told you about her unfortunate experience with burst pipes this winter. These accidents always seem to happen at the most inconvenient times and can be a real mess to fix and clean up. But there are a few things you can do to prevent them-namely, check your pipes and be sure they are

  14. NREL: Learning - Hydrogen Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Hydrogen Basics Hydrogen is a clean-burning fuel, and when combined with oxygen in a fuel cell, it produces heat and electricity with only water vapor as a by-product. But hydrogen...

  15. Efficient Solutions for Existing Homes Case Study: Solar Water Heating in

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Multifamily Buildings | Department of Energy Existing Homes Case Study: Solar Water Heating in Multifamily Buildings Efficient Solutions for Existing Homes Case Study: Solar Water Heating in Multifamily Buildings In spring 2014, Olive Street Development completed a major renovation project-converting an old school building in Greenfield, Massachusetts, into 12 high-performance apartments. The developer installed SDHW to reduce fossil-fuel consumption, and CARB has been monitoring the system

  16. "Nanoengineered Surfaces for Efficiency Enhancements in Energy and Water",

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Professor Kripa Varansi, Massachusetts Institute of Technology | Princeton Plasma Physics Lab October 24, 2012, 4:15pm Colloquia MBG Auditorium "Nanoengineered Surfaces for Efficiency Enhancements in Energy and Water", Professor Kripa Varansi, Massachusetts Institute of Technology Thermal-fluid-surface interactions are ubiquitous in multiple industries including Energy, Water, Agriculture, Transportation, Electronics Cooling, Buildings, etc. Over the years, these systems have been

  17. High-efficiency commercial water heater development. Annual report, January-December 1982

    SciTech Connect (OSTI)

    Demetri, E.P.; Vasilakis, A.D.; Gerstmann, J.

    1983-01-01

    The development of a prototype condensing water heater for commercial applications has been completed. The selected concept consists of a high-efficiency water heater connected by appropriate plumbing to a stratified-temperature storage tank. The prototype system has been designed, fabricated, and tested in the laboratory. A steady-state efficiency above 95% and recovery efficiencies well in excess of 90% have been demonstrated experimentally. On the basis of test results and an analysis of the potential market, it is projected that the system will provide substantial paybacks in a wide variety of applications. A number of pre-production prototypes are being fabricated for field testing at representative commercial sites early in 1983.

  18. DOE Zero Energy Ready Home Efficient Hot Water Distribution II-- How to Get it Right Webinar (Text Version)

    Energy.gov [DOE]

    Below is the text version of the webinar, Efficient Hot Water Distribution II -- How to Get it Right, presented in January2014.

  19. Pacific Northwest National Laboratory Grounds Maintenance: Best Management Practice Case Studies #4 and #5 - Water Efficient Landscape and Irrigation (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2009-08-01

    FEMP Water Efficiency Best Management Practices #4 and #5 Case Study: Overview of the Pacific Northwest National Laboratory grounds maintenance program and results.

  20. 10 CFR 850, Request for Information- Docket Number: HS-RM-10-CBDPP- Alliance for Water Efficiency (AWE)

    Energy.gov [DOE]

    Commenter: Alliance for Water Efficiency (AWE) 10 CFR 850 - Request for Information Docket Number: HS-RM-10-CBDPP Comment Close Date: 2/22/2011

  1. Efficiency

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Efficiency of High Order Spectral Element Methods on Petascale Architectures Maxwell Hutchinson 1 , Alexander Heinecke 2 , Hans Pabst 3 , Greg Henry 4 , Matteo Parsani 5 , and David Keyes 5 1 Department of Physics, University of Chicago, Chicago IL, USA 2 Intel Corporation, Santa Clara CA, USA 3 Intel Semiconductor AG, Zurich, Switzerland 4 Intel Corporation, Hillsboro OR, USA 5 Extreme Computing Research Center, KAUST, Thuwal, 23955, KSA Abstract. High order methods for the solution of PDEs

  2. System and process for efficient separation of biocrudes and water in a hydrothermal liquefaction system

    DOE Patents [OSTI]

    Elliott, Douglas C.; Hart, Todd R.; Neuenschwander, Gary G.; Oyler, James R.; Rotness, Jr, Leslie J.; Schmidt, Andrew J.; Zacher, Alan H.

    2016-08-02

    A system and process are described for clean separation of biocrudes and water by-products from hydrothermal liquefaction (HTL) product mixtures of organic and biomass-containing feedstocks at elevated temperatures and pressures. Inorganic compound solids are removed prior to separation of biocrude and water by-product fractions to minimize formation of emulsions that impede separation. Separation may be performed at higher temperatures that reduce heat loss and need to cool product mixtures to ambient. The present invention thus achieves separation efficiencies not achieved in conventional HTL processing.

  3. Purchasing Energy-Efficient Residential Whole-Home Gas Tankless Water Heaters

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Federal Energy Management Program (FEMP) provides acquisition guidance for residential whole-home gas tankless water heaters, a product category covered by ENERGY STAR efficiency requirements. Federal laws and requirements mandate that agencies purchase ENERGY STAR-qualified products or FEMP-designated products in all product categories covered by these programs and in any acquisition actions that are not specifically exempted by law.

  4. Kitchen Appliance Upgrades Improve Water Efficiency at DOD Exchange Facilities: Best Management Practice Case Study #11: Commercial Kitchen Equipment (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-09-01

    The Exchange, formerly the Army and Air Force Exchange Service (AAFES), is a joint military activity and the U.S. Department of Defense?s (DOD) oldest and largest retailer. The Exchange is taking a leadership role in water efficiency improvements in their commercial kitchens by integrating water efficiency concepts into the organization?s overall sustainability plan and objectives.

  5. Clothes washer standards in China -- The problem of water andenergy trade-offs in establishing efficiency standards

    SciTech Connect (OSTI)

    Biermayer, Peter J.; Lin, Jiang

    2004-05-19

    Currently the sales of clothes washers in China consist ofseveral general varieties. Some use more energy (with or withoutincluding hot water energy use) and some use more water. Both energy andwater are in short supply in China. This poses the question - how do youtrade off water versus energy in establishing efficiency standards? Thispaper discusses how China dealt with this situation and how itestablished minimum efficiency standards for clothes washers.

  6. Ethanol Basics

    SciTech Connect (OSTI)

    2015-01-30

    Ethanol is a widely-used, domestically-produced renewable fuel made from corn and other plant materials. More than 96% of gasoline sold in the United States contains ethanol. Learn more about this alternative fuel in the Ethanol Basics Fact Sheet, produced by the U.S. Department of Energy's Clean Cities program.

  7. Analysis of space heating and domestic hot water systems for energy-efficient residential buildings

    SciTech Connect (OSTI)

    Dennehy, G

    1983-04-01

    An analysis of the best ways of meeting the space heating and domestic hot water (DHW) needs of new energy-efficient houses with very low requirements for space heat is provided. The DHW load is about equal to the space heating load in such houses in northern climates. The equipment options which should be considered are discussed, including new equipment recently introduced in the market. It is concluded that the first consideration in selecting systems for energy-efficient houses should be identification of the air moving needs of the house for heat distribution, heat storage, ventilation, and ventilative cooling. This is followed, in order, by selection of the most appropriate distribution system, the heating appliances and controls, and the preferred energy source, gas, oil, or electricity.

  8. Desalination Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    ... 42 Liquid-liquid Extraction ......water usage by state verifies these patterns. Per capita usage is highest in arid western states with agricultural based ...

  9. Development of High Efficiency Carbon Dioxide Commercial Heat Pump Water Heater

    SciTech Connect (OSTI)

    Michael PETERSEN; Chad D. BOWERS; Stefan ELBEL; Pega HRNJAK

    2012-07-01

    Although heat pump water heaters are today widely accepted in both Japan and Europe, where energy costs are high and government incentives for their use exist, acceptance of such products in the US has been limited. While this trend is slowly changing with the introduction of heat pump water heaters into the residential market, but acceptance remains low in the commercial sector. The objective of the presented work is the development of a high efficiency R744 heat pump water heater for commercial applications with effective utilization of the cooling capability for air conditioning and/or refrigeration. The ultimate goal is to achieve total system COP of up to 8. This unit will be targeted at commercial use where some cooling load is typically needed year round, such as restaurants, hotels, nursing homes, and hospitals. This paper presents the performance results from the development of four R744 commercial heat pump water heater packages of approximately 35 kW and comparison to a commercially available baseline R134a unit of the same capacity and footprint. In addition, the influences of an internal heat exchanger and an enhanced evaporator on the system performance are described and recommendations are made for further improvements of the R744 system.

  10. Geothermal Basics

    Energy.gov [DOE]

    Geothermal energy is thermal energy generated and stored in the Earth. Geothermal energy can manifest on the surface of the Earth, or near the surface of the Earth, where humankind may harness it to serve our energy needs. Geothermal resources are reservoirs of hot water that exist at varying temperatures and depths below the Earth's surface. Wells can be drilled into these underground reservoirs to tap steam and very hot water that can be brought to the surface for a variety of uses.

  11. Daylighting Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Lighting & Daylighting » Daylighting Basics Daylighting Basics August 16, 2013 - 11:24am Addthis Energy 101: Daylighting Basics This video explains how homeowners and businesses can use highly efficient, strategically placed windows to save money. Text Version Daylighting is the use of windows and skylights to bring sunlight into buildings. Daylighting in businesses and commercial buildings can result in substantial savings on electric bills, and not only provides a higher quality of light

  12. Interactive effects of elevated CO{sub 2}, drought and high temperature on plant water use efficiency

    SciTech Connect (OSTI)

    Theodore C. Hsiao

    1998-08-01

    Water use efficiency (WUE) by plants is a key determinant of productivity and survival of plants under water limiting or drought conditions. The aim of this project was to develop a mechanistic basis for predicting WUE without the prohibitive task of studying every plant species under a range of environmental conditions.

  13. A NOVEL CONCEPT FOR REDUCING WATER USAGE AND INCREASING EFFICIENCY IN POWER GENERATION

    SciTech Connect (OSTI)

    Shiao-Hung Chiang; Guy Weismantel

    2004-03-01

    The objective of the project is to apply a unique ice thermal storage (ITS) technology to cooling the intake air to gas turbines used for power generation. In Phase I, the work includes theoretical analysis, computer simulation, engineering design and cost evaluation of this novel ITS technology. The study includes two typical gas turbines (an industrial and an aeroderivative type gas turbine) operated at two different geographic locations: Phoenix, AZ and Houston, TX. Simulation runs are performed to generate data for both power output (KW) and heat rate (Btu/KWh) as well as water recovery (acre ft/yr) in terms of intake air temperature and humidity based on weather data and turbine performance curves. Preliminary engineering design of a typical equipment arrangement for turbine inlet air-cooling operation using the ITS system is presented. A cost analysis has been performed to demonstrate the market viability of the ITS technology. When the ITS technology is applied to gas turbines, a net power gain up to 40% and a heat rate reduction as much as 7% can be achieved. In addition, a significant amount of water can be recovered (up to 200 acre-ft of water per year for a 50 MW turbine). The total cost saving is estimated to be $500,000/yr for a 50 MW gas turbine generator. These results have clearly demonstrated that the use of ITS technology to cool the intake-air to gas turbines is an efficient and cost effective means to improve the overall performance of its power generation capacity with an important added benefit of water recovery in power plant operation. Thus, further development of ITS technology for commercial applications in power generation, particularly in coal-based IGCC power plants is warranted.

  14. MidAmerican Energy (Gas)- Residential Energy Efficiency Rebate Programs

    Office of Energy Efficiency and Renewable Energy (EERE)

    MidAmerican Energy offers basic energy efficiency incentives for residential customers in Nebraska. These incentives include gas heating equipment such as boilers, furnaces, and water heaters. Free...

  15. Inflation Basics

    SciTech Connect (OSTI)

    Green, Dan

    2014-03-01

    inflation since metrical fluctuations, both scalar and tensor, are also produced in inflationary models. Thus, the time appears to be appropriate for a very basic and simple exposition of the inflationary model written from a particle physics perspective. Only the simplest scalar model will be explored because it is easy to understand and contains all the basic elements of the inflationary model.

  16. B - Basics

    Energy.gov (indexed) [DOE]

    June 2001 | Department of Energy U.S. industrial facilities utilize a wide array of thermal process equipment, including hot water heaters, thermal liquid heaters, ovens, furnaces, kilns, dryers, chillers, and boilers. This report provides a market assessment of innovative industrial distributed generation cogeneration systems that are less than 1 MWe. industrial_cogen.pdf (988.64 KB) More Documents & Publications Steam System Opportunity Assessment for the Pulp and Paper, Chemical

  17. The effect of efficiency standards on water use and water heating energy use in the US: A detailed end-use treatment

    SciTech Connect (OSTI)

    Koomey, J.G.; Dunham, C.; Lutz, J.D.

    1994-05-01

    Water heating is an important end-use, accounting for roughly 16% of total primary energy consumption in the US residential sector. Recently enacted efficiency standards on water heaters and hot water-using equipment (e.g., dishwashers, clothes washers, showerheads, and faucets) will substantially affect the energy use of water heaters in the future. Assessment of current and future utility programs and government policies requires that regulators, resource planners, and forecasters understand the effects of these regulations. In order to quantify these impacts, this paper presents a detailed end-use breakdown of household hot and cold water use developed for the US Department of Energy. This breakdown is based on both previous studies and new data and analysis. It is implemented in a spreadsheet forecasting framework, which allows significant flexibility in specifying end-use demands and linkages between water heaters and hot water-using appliances. We disaggregate total hot and cold water use (gallons per day) into their component parts: showers, baths, faucets (flow dominated and volume dominated), toilets, landscaping/other, dishwashers, and clotheswashers. We then use the end-use breakdown and data on equipment characteristics to assess the impacts of current efficiency standards on hot water use and water heater energy consumption.

  18. Microhydropower Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy » Hydropower » Microhydropower Basics Microhydropower Basics August 15, 2013 - 3:09pm Addthis Microhydropower systems are small hydroelectric power systems of less than 100 kilowatts (kW) used to produce mechanical energy or electricity for farms, ranches, homes, and villages. How a Microhydropower System Works All hydropower systems use the energy of flowing water to produce electricity or mechanical energy. Although there are several ways to harness moving water to produce

  19. Cooling Towers: Understanding Key Components of Cooling Towers and How to Improve Water Efficiency

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Source: Paul Johnston-Knight Introduction Federal laws and regulations require Federal agencies to reduce water use and improve water effciency. Namely, Executive Order 13514 Federal Leadership in Environmental, Energy, and Economic Performance, requires an annual two percent reduction of water use intensity (water use per square foot of building space) for agency potable water consumption as well as a two percent reduction of water use for industrial, landscaping, and agricultural applica-

  20. Water Efficiency Improvements at Various U.S. Environmental Protection Agency Sites

    Office of Energy Efficiency and Renewable Energy (EERE)

    Case study discusses the U.S. Environmental Protection Agency's (EPA) successful water conservation program, which reduced potable water use through a series of initiatives at EPA laboratories.

  1. Basic Energy Sciences

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Basic Energy Sciences Basic Energy Sciences Supporing research to understand, predict and ... The DOE Office of Science's Basic Energy Sciences program equips scientists with a ...

  2. Membranes for Efficient Water Purification Novel Membranes and Systems for Industrial and Municipal Water Purification and Reuse

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Membranes and Systems for Industrial and Municipal Water Purification and Reuse Decreasing energy consumption of reverse osmosis membrane separation processes Water is essential for life and critical to economic activity. It impacts a wide range of U.S. industries, including power generation, oil and gas production, mining, food processing, and chemical production. In 2010, the U.S. Geological Survey estimated the United States used 355 billion gallons of water daily, more than 51% of which was

  3. Energy Efficient Condensing Side-arm Gas Water Heater - Energy Innovation

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Efficient Buildings Hub Energy Efficient Buildings Hub August 1, 2010 - 4:27pm Addthis This model of a renovated historic building -- Building 661 -- in Philadelphia will house the Energy Efficient Buildings Hub. The facility’s renovation will serve as a best practices model for commercial building design, historic adaptive re-use, and energy efficiency innovation through continuous retrofit. This model of a renovated historic building -- Building 661 -- in Philadelphia will house the

  4. Research and development of a high-efficiency gas-fired water heater. Phase II. Production prototype design and development

    SciTech Connect (OSTI)

    Vasilakis, A.D.; Gerstmann, J.

    1983-04-01

    The second phase of the development of a high-efficiency, gas-fired water heater is described. The objective of the Phase II effort was to develop a production prototype based on the Phase I prototype design that met the project goal of a 70% service efficiency. The Phase II project began with a manufacturing analysis of the Phase I prototype by AMTROL, the manufacturing subcontractor. This was followed by an endurance test of a prototype built by AMTROL to the Phase I design. This test consisted of accelerated usage, including operation with both soft and hard water. The remainder of the Phase II project was devoted to improving the manufacturability, serviceability and performance of the high-efficiency water heater. A large part of the Phase II effort was spent in improving the efficiency from 62.6% to 71.4%. During the Phase II portion of the project, two very significant achievements were attained. First, a premixed, natural draft, combustion system was developed that had a clean compact flame. Second, a battery-powered spark ignition system was developed with the potential for lasting the life of the water heater without battery replacement.

  5. Lighting Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Homes & Buildings » Lighting & Daylighting » Lighting Basics Lighting Basics August 15, 2013 - 5:12pm Addthis Text Version There are many different types of artificial lights (formally called "lamps" in the lighting industry,) which have different applications and uses. Types of lighting include: Fluorescent Lighting High-intensity Discharge Lighting Incandescent Lighting LED Lighting. New lamp designs that use energy-efficient technology are now readily available in the

  6. Energy Efficiency | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Efficiency Energy Efficiency Below are resources for Tribes on energy efficiency. ... Source: Northwest SEED. Home and Building Technologies Basics Learn about energy ...

  7. Purchasing Water-Efficient Faucets, Pre-Rinse Spray Valves, Showerheads, Toilets, and Urinals

    Energy.gov [DOE]

    Federal agencies are required to purchase U.S. Environmental Protection Agency (EPA) WaterSense-labeled products where applicable. Faucets, pre-rinse spray valves, showerheads, toilets, and urinals are covered under the WaterSense program.

  8. Issue #4: Are High Efficiency Hot Water Heating Systems Worth the Cost?

    Energy.gov [DOE]

    What are realistic energy savings associated with the latest advanced and forthcoming water heating technologies and are they cost effective?

  9. NREL Demonstrates Efficient Solar Water Splitting by Metal Oxide Photoabsorber (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-01-01

    New development demonstrates that inexpensive and robust metal oxide photoabsorbers hold great promise as photoanodes for water oxidation.

  10. Wind Energy Basics | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Wind Energy Basics We have been harnessing the wind's energy for hundreds of years. From old Holland to farms in the United States, windmills have been used for pumping water or grinding grain. Today, the windmill's modern equivalent-a wind turbine-can use the wind's energy to generate electricity. Text Version Wind turbines, like windmills, are mounted on a tower to capture the most energy. At 100 feet (30 meters) or more aboveground, they can take advantage of the faster and less turbulent

  11. Solar Energy Basics | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Solar Energy Basics Solar is the Latin word for sun-a powerful source of energy that can be used to heat, cool, and light our homes and businesses. That's because more energy from the sun falls on the earth in one hour than is used by everyone in the world in one year. A variety of technologies convert sunlight to usable energy for buildings. The most commonly used solar technologies for homes and businesses are solar water heating, passive solar design for space heating and cooling, and solar

  12. DOE Announces Webinars on Energy Planning for Tribal Economic Development and Water Efficiency and Energy Savings

    Energy.gov [DOE]

    EERE offers webinars to the public on a range of subjects, from adopting the latest energy efficiency and renewable energy technologies to training for the clean energy workforce.

  13. NASA's Marshall Space Flight Center Saves Water with High-Efficiency Toilet and Urinal Program

    Energy.gov [DOE]

    Case study details Marshall Space Flight Center's innovative replacement program for toilets and urinals by researching appropriate fixtures, demonstrating technologies, and creating specifications for high-efficiency fixtures.

  14. Lighting and Daylighting Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Homes & Buildings » Lighting and Daylighting Basics Lighting and Daylighting Basics August 15, 2013 - 5:05pm Addthis Buildings can be lit in two ways: by using artificial lighting, or by using daylighting, or the process of using natural sunlight, windows, and skylights to provide lighting. Learn more about: Lighting Daylighting Addthis Related Articles Daylighting Basics Energy 101: Daylighting The Biggest, Brightest Star of Energy Efficiency Energy Basics Home Renewable Energy Homes &

  15. Guidance for the Implementation and Follow-Up of Identified Energy and Water Efficiency Measures in Covered Facilities

    Office of Energy Efficiency and Renewable Energy (EERE)

    Document provides specific guidance to agencies on the implementation and follow-up of energy and water efficiency measures identified and undertaken per Section 432 of the Energy Independence and Security Act of 2007 (EISA) (42 U.S.C. 8253(f)(4) and (5)). Document also provides context for how these activities fit into the comprehensive approach to facility energy and water management outlined by the statute and incorporates by reference previous U.S. Department of Energy guidance released for Section 432 of EISA and other related documents.

  16. Basic Energy Sciences Reports

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Basic Energy Sciences Reports Basic Energy Sciences Reports The list below of Basic Energy ... The report originated from a January 25, 2005, request from the Office of Science and is ...

  17. Combinatorial Discovery and Optimization of the Composition, Doping and Morphology of New Oxide Semiconductors for Efficient Photoelectrochemical Water Splitting

    SciTech Connect (OSTI)

    Parkinson, Bruce A.; Jianghua, He

    2015-01-06

    The increasing need for carbon free energy has focused renewed attention on solar energy conversion. Although photovoltaic cells excel at directly converting of solar energy to electricity, they do not directly produce stored energy or fuels that account for more than 75% of current energy use. Direct photoelectrolysis of water has the advantage of converting solar energy directly to hydrogen, an ideal non-carbon and nonpolluting energy carrier, by replacing both a photovoltaic array and an electrolysis unit with one potentially inexpensive device. Unfortunately no materials are currently known to efficiently photoelectrolyze water that are, efficient, inexpensive and stable under illumination in electrolytes for many years. Nanostructured semiconducting metal oxides could potentially fulfill these requirements, making them the most promising materials for solar water photoelectrolysis, however no oxide semiconductor has yet been discovered with all the required properties. We have developed a simple, high-throughput combinatorial approach to prepare and screen many multi component metal oxides for water photoelectrolysis activity. The approach uses ink jet printing of overlapping patterns of soluble metal oxide precursors onto conductive glass substrates. Subsequent pyrolysis produces metal oxide phases that are screened for photoelectrolysis activity by measuring photocurrents produced by scanning a laser over the printed patterns in aqueous electrolytes. Several promising and unexpected compositions have been identified.

  18. DOE ZERH Webinar: Energy-- and Water-- Efficiency in the DOE Zero Energy Ready Home Program

    Energy.gov [DOE]

    In recent years, challenges such as an aging infrastructure and drought have led to rapidly rising water rates and an increased focus on (sometimes strict) conservation measures. In this session...

  19. Advanced, Energy-Efficient Hybrid Membrane System for Industrial Water Reuse

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Young Chul Choi (Presenter; Water Technology Director) RTI International Research Triangle Park, NC 27709 U.S. DOE Advanced Manufacturing Office Peer Review Meeting Washington, D.C. June 14-15, 2016 This presentation does not contain any proprietary, confidential, or otherwise restricted information. Project Objective  What are you trying to do?  To develop integrated FO-MD technology for high TDS water  What is the problem?  Current RO Technology is not capable of producing clean

  20. Guidance for the Implementation and Follow-up of Identified Energy and Water Efficiency Measures in Covered Facilities

    SciTech Connect (OSTI)

    2012-09-01

    This document provides specific guidance to agencies on the implementation and follow-up of energy and water efficiency measures identified and undertaken per Section 432 of the Energy Independence and Security Act of 2007 (EISA) (42 U.S.C. 8253(f)(4) and (5)) This guidance also provides context for how these activities fit into the comprehensive approach to facility energy and water management outlined by the statute and incorporates by reference previous DOE guidance released for Section 432 of EISA and other related documents. 42 U.S.C. 8253(f)(7)(A) specifies that facility energy managers shall certify compliance for each covered facility with the 42 U.S.C. 8253(f)(2)-(5) requirements via a web-based tracking system and make it publicly available. This document also describes the role of the tracking system that has been developed for the collection and reporting of data needed for the demonstration of compliance and progress toward meeting all energy and water efficiency requirements outlined in the statute.

  1. Tool Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Commercial Buildings » Analysis Tools » Energy Asset Score » Tool Basics Tool Basics Asset Score Scale The Asset Score uses a 10-point scale to evaluate the energy efficiency of a building's physical characteristics and major energy-related systems. The point value is assigned based on a building's predicted source energy use intensity (EUI) according to the energy simulation results. Scores are rounded to the nearest half-point increment (i.e., "6", "6.5", "7",

  2. High Efficiency Generation of Hydrogen Fuels Using Solar Thermochemical Splitting of Water

    SciTech Connect (OSTI)

    Heske, Clemens; Moujaes, Samir; Weimer, Alan; Wong, Bunsen; Siegal, Nathan; McFarland, Eric; Miller, Eric; Lewis, Michele; Bingham, Carl; Roth, Kurth; Sabacky, Bruce; Steinfeld, Aldo

    2011-09-29

    The objective of this work is to identify economically feasible concepts for the production of hydrogen from water using solar energy. The ultimate project objective was to select one or more competitive concepts for pilot-scale demonstration using concentrated solar energy. Results of pilot scale plant performance would be used as foundation for seeking public and private resources for full-scale plant development and testing. Economical success in this venture would afford the public with a renewable and limitless source of energy carrier for use in electric power load-leveling and as a carbon-free transportation fuel. The Solar Hydrogen Generation Research (SHGR) project embraces technologies relevant to hydrogen research under the Office of Hydrogen Fuel Cells and Infrastructure Technology (HFCIT) as well as concentrated solar power under the Office of Solar Energy Technologies (SET). Although the photoelectrochemical work is aligned with HFCIT, some of the technologies in this effort are also consistent with the skills and technologies found in concentrated solar power and photovoltaic technology under the Office of Solar Energy Technologies (SET). Hydrogen production by thermo-chemical water-splitting is a chemical process that accomplishes the decomposition of water into hydrogen and oxygen using only heat or a combination of heat and electrolysis instead of pure electrolysis and meets the goals for hydrogen production using only water and renewable solar energy as feed-stocks. Photoelectrochemical hydrogen production also meets these goals by implementing photo-electrolysis at the surface of a semiconductor in contact with an electrolyte with bias provided by a photovoltaic source. Here, water splitting is a photo-electrolytic process in which hydrogen is produced using only solar photons and water as feed-stocks. The thermochemical hydrogen task engendered formal collaborations among two universities, three national laboratories and two private sector

  3. Approaches to efficiently estimate solvation and explicit water energetics in ligand binding: the use of WaterMap [WaterMap and Its Implementation in Drug Discovery

    SciTech Connect (OSTI)

    Yang, Yue; Wong, Sergio E.; Lightstone, Felice C.

    2012-09-08

    Solvents play quite an important role in most chemical and biological processes. It is widely accepted that the presence of water or other solvents in many chemical reactions can result in much lower energy barrier. In enzymatic catalysis, water mediated reaction pathways have been observed in various studies. In addition, different conformation flexibility and hydrogen bond patterns have been discovered for cyclic peptides in the presence of membrane and water, further illustrating the impact of solvent in biological activities such like membrane penetration. moreover, as will be discussed later in this review, water also plays a critical role in host-guest chemistry and thus is essential to drug design. As such, it is not surprising that accounting for solvents is critical in drug discovery since drugs must modulate biological systems.

  4. Approaches to efficiently estimate solvation and explicit water energetics in ligand binding: the use of WaterMap [WaterMap and Its Implementation in Drug Discovery

    DOE PAGES-Beta [OSTI]

    Yang, Yue; Wong, Sergio E.; Lightstone, Felice C.

    2012-09-08

    Solvents play quite an important role in most chemical and biological processes. It is widely accepted that the presence of water or other solvents in many chemical reactions can result in much lower energy barrier. In enzymatic catalysis, water mediated reaction pathways have been observed in various studies. In addition, different conformation flexibility and hydrogen bond patterns have been discovered for cyclic peptides in the presence of membrane and water, further illustrating the impact of solvent in biological activities such like membrane penetration. moreover, as will be discussed later in this review, water also plays a critical role in host-guestmore » chemistry and thus is essential to drug design. As such, it is not surprising that accounting for solvents is critical in drug discovery since drugs must modulate biological systems.« less

  5. An efficient parallelization scheme for molecular dynamics simulations with many-body, flexible, polarizable empirical potentials: Application to water

    SciTech Connect (OSTI)

    Fanourgakis, Georgios S.; Tipparaju, Vinod; Nieplocha, Jarek; Xantheas, Sotiris S.

    2007-01-01

    An efficient parallelization scheme for classical Molecular Dynamics simulations with flexible polarizable empirical potentials is presented. It is based on the standard Ewald summation technique to handle the long-range electrostatic and induction interactions. The algorithm for this parallelization scheme is designed for systems containing several thousands of polarizable sites in the simulation box. Its performance is evaluated during Molecular Dynamics simulations under periodic boundary conditions with unit cell sizes ranging from 128-512 water molecules employing two exible, polarizable water models [POL1(F) and TTM2-F] containing 1 and 3 polarizable sites respectively. The efficiency of the algorithm, is evaluated against a flexible, pairwise-additive water model (TIP4F). The benchmarks were performed on both shared and distributed memory platforms. As a result of the efficient calculations of the induced dipole moments, a superlinear scaling as a function of the number of the processors is observed in several cases. To the best of our knowledge, this is the first attempt for a parallel implementation of a polarizable potential under periodic boundary conditions. Guidelines for adapting the algorithm for larger systems are also discussed. This research was performed in part using the Molecular Science Computing Facility (MSCF) in the William R. Wiley Environmental Molecular Sciences laboratory, a national scientific user facility sponsored by the U.S. Department of Energys Office of Biological and Environmental Research located at the Pacific Northwest National Laboratory. The Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy under contract DE-AC05-76RL01830.

  6. Advanced, Energy-Efficient Hybrid Membrane System for Industrial Water Reuse

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Lora Toy (Principal Investigator) RTI International Research Triangle Park, NC 27709 U.S. DOE Advanced Manufacturing Office Peer Review Meeting Washington, D.C. May 6---7, 2014 This presentation does not contain any proprietary, confidential, or otherwise restricted information. (1 slide) Develo Project Objec�ve Current State/Challenges § Heavy industrial water utilization footprint Freshwater Withdrawals in the U.S. by Sector (2005) Domestic Agricultural 14% 40% Industrial (incl. Power

  7. IMPROVING ENERGY EFFICIENCY AND REDUCING COSTS IN THE DRINKING WATER SUPPLY INDUSTRY: An ENERGY STAR Resource Guide for Energy and Plant Managers

    SciTech Connect (OSTI)

    Melody, Moya; Dunham Whitehead, Camilla; Brown, Richard

    2010-09-30

    As American drinking water agencies face higher production costs, demand, and energy prices, they seek opportunities to reduce costs without negatively affecting the quality of the water they deliver. This guide describes resources for cost-effectively improving the energy efficiency of U.S. public drinking water facilities. The guide (1) describes areas of opportunity for improving energy efficiency in drinking water facilities; (2) provides detailed descriptions of resources to consult for each area of opportunity; (3) offers supplementary suggestions and information for the area; and (4) presents illustrative case studies, including analysis of cost-effectiveness.

  8. Water/rock interaction efficiency and seawater dolomitization in the Eocene Avon Park Formation, Floridan Aquifer

    SciTech Connect (OSTI)

    Cander, H.S. )

    1990-05-01

    The Floridan aquifer has often been proposed as a system of extensive meteoric carbonate diagenesis and mixing zone dolomitization. However, the dominance of marine isotope (C, O, {sup 87}Sr/{sup 86}Sr) and trace element (Sr, Fe, Mn) compositions in dolomites and limestones in the Eocene Avon Park Formation, Floridan aquifer, suggests that the very active low temperature meteoric groundwater system has, over the past 40 m.y., been an inefficient mechanism of diagenesis. {delta}{sup 18}O values of all but two replacement dolomites sampled range from +2.0 to +5.1 (PDB) with high Sr concentrations (90-325 ppm), indicating dolomitization by near-normal marine water involving no significant interaction with meteoric groundwater. The two {delta}{sup 18}O-depleted (0.0 {plus minus} 1) dolomites have low Sr concentrations ({approximately}100 ppm) suggesting limited recrystallization in meteoric water. Several dolomite samples have radiogenic {sup 87}Sr/{sup 86}Sr compositions (0.70810-0.70883 {plus minus} 2), but have heavy oxygen isotope compositions (> +2.0) and high Sr concentrations (<200 ppm) suggesting precipitation from cold Miocene age or younger seawater that circulated through the Florida platform. Most limestone stable isotope compositions cluster around marine values (({delta}{sup 18}O = {minus}1 to +1, PDB) {delta}{sup 13}C = +0.5 to +2.5) and have Eocene seawater {sup 87}Sr/{sup 86}Sr compositions (0.70775 {plus minus} 2 to 0.70779 {plus minus} 2) with 400 to 500 ppm Sr. Isotopic compositions of limestones from the east coast of Florida are all within these ranges. Only some limestones from central Florida and the west coast contain depleted stable isotopic compositions and low Sr concentrations. The sample with the most depleted stable isotope values has a radiogenic {sup 87}Sr/{sup 86}Sr composition (0.70870 {plus minus} 2), suggesting that diagenetic meteoric water migrated through post-Miocene strata.

  9. High Efficiency Hydrogen Production from Nuclear Energy: Laboratory Demonstration of S-I Water-Splitting

    SciTech Connect (OSTI)

    Buckingham, R.; Russ, B.; Brown, L.; Besenbruch, G.E.; Gelbard, F.; Pickard F.S.; Leybros, J.; Le Duigou, A.; Borgard, J.M.

    2004-11-30

    The objective of the French CEA, US-DOE INERI project is to perform a lab scale demonstration of the sulfur iodine (S-I) water splitting cycle, and assess the potential of this cycle for application to nuclear hydrogen production. The project will design, construct and test the three major component reaction sections that make up the S-I cycle. The CEA will design and test the prime (Bunsen) reaction section. General Atomics will develop and test the HI decomposition section, and SNL will develop and test the H2SO4 decomposition section. Activities for this period included initial program coordination and information exchange, the development of models and analyses that will support the design of the component sections, and preliminary designs for the component reaction sections. The sections are being designed to facilitate integration into a closed loop demonstration in a later stage of the program.

  10. Thin liquid/gas diffusion layers for high-efficiency hydrogen production from water splitting

    DOE PAGES-Beta [OSTI]

    Mo, Jingke; Retterer, Scott T.; Cullen, David A.; Toops, Todd J.; Green, Jr, Johney Boyd; Zhang, Feng-Yuan

    2016-06-13

    Liquid/gas diffusion layers (LGDLs) play a crucial role in electrochemical energy technology and hydrogen production, and are expected to simultaneously transport electrons, heat, and reactants/products with minimum voltage, current, thermal, interfacial, and fluidic losses. In addition, carbon materials, which are typically used in proton exchange membrane fuel cells (PEMFCs), are unsuitable for PEM electrolyzer cells (PEMECs). In this study, a novel titanium thin LGDL with well-tunable pore morphologies was developed by employing nano-manufacturing and was applied in a standard PEMEC. The LGDL tests show significant performance improvements. The operating voltages required at a current density of 2.0 A/cm2 were asmore » low as 1.69 V, and its efficiency reached a report high of up to 88%. The new thin and flat LGDL with well-tunable straight pores has been demonstrated to remarkably reduce the ohmic, interfacial and transport losses. In addition, well-tunable features, including pore size, pore shape, pore distribution, and thus porosity and permeability, will be very valuable for developing PEMEC models and for validation of its simulations with optimal and repeatable performance. The LGDL thickness reduction from greater than 350 μm of conventional LGDLs to 25 μm will greatly decrease the weight and volume of PEMEC stacks, and represents a new direction for future developments of low-cost PEMECs with high performance.« less

  11. Faradaic efficiencies less than 100% during electrolysis of water can account for reports of excess heat in `cold fusion` cells

    SciTech Connect (OSTI)

    Jones, J.E.; Hansen, L.D.; Jones, S.E.; Shelton, D.S.; Thorne, J.M.

    1995-05-04

    The purpose of this study is to evaluate claims of excess heat generation during water electrolysis. Several cells were constructed and operated similarly to low-current-density cells described in the literature. All produced excess heat as defined and calculated in the literature reports, but the production of excess heat could be readily terminated by the introduction of various barriers to the migration of hydrogen and oxygen. Remarkably, published reports of excess heat fail to disprove the presence of decreased faradaic efficiency (e.g., current that oxidizes H{sub 2} or reduces O{sub 2}) or systematic calorimetric errors. Illustrative examples of both problems are given. Thus, failure to rule out prosaic explanations probably invalidates all the currently available reports of excess heat in both light water-Ni/Pt and heavy water-Pd/Pt cells. There is no compelling evidence that excess heat is of a nuclear origin in such electrolytic cells. 20 refs., 6 figs., 1 tab.

  12. High Efficiency Integrated Space Conditioning, Water Heating and Air Distribution System for HUD-Code Manufactured Housing

    SciTech Connect (OSTI)

    Henry DeLima; Joe Akin; Joseph Pietsch

    2008-09-14

    Recognizing the need for new space conditioning and water heating systems for manufactured housing, DeLima Associates assembled a team to develop a space conditioning system that would enhance comfort conditions while also reducing energy usage at the systems level. The product, Comboflair® was defined as a result of a needs analysis of project sponsors and industry stakeholders. An integrated system would be developed that would combine a packaged airconditioning system with a small-duct, high-velocity air distribution system. In its basic configuration, the source for space heating would be a gas water heater. The complete system would be installed at the manufactured home factory and would require no site installation work at the homesite as is now required with conventional split-system air conditioners. Several prototypes were fabricated and tested before a field test unit was completed in October 2005. The Comboflair® system, complete with ductwork, was installed in a 1,984 square feet, double-wide manufactured home built by Palm Harbor Homes in Austin, TX. After the home was transported and installed at a Palm Harbor dealer lot in Austin, TX, a data acquisition system was installed for remote data collection. Over 60 parameters were continuously monitored and measurements were transmitted to a remote site every 15 minutes for performance analysis. The Comboflair® system was field tested from February 2006 until April 2007. The cooling system performed in accordance with the design specifications. The heating system initially could not provide the needed capacity at peak heating conditions until the water heater was replaced with a higher capacity standard water heater. All system comfort goals were then met. As a result of field testing, we have identified improvements to be made to specific components for incorporation into production models. The Comboflair® system will be manufactured by Unico, Inc. at their new production facility in St. Louis

  13. Geothermal Electricity Production Basics | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Electricity Production Basics Geothermal power plants use steam produced from reservoirs of hot water found a few miles or more below the Earth's surface to produce electricity. The steam rotates a turbine that activates a generator, which produces electricity. There are three types of geothermal power plants: dry steam, flash steam, and binary cycle. Photo of a geothermal power plant. This geothermal power plant generates electricity for the Imperial Valley in California. Dry Steam Dry steam

  14. Enhanced Geothermal System Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Geothermal » Enhanced Geothermal System Basics Enhanced Geothermal System Basics A naturally occurring geothermal system, known as Enhanced Geothermal Systems (EGS), is another form of renewable energy. It is defined by three key elements: heat, fluid, and permeability at depth. Essentially, these are engineered reservoirs that produce energy from geothermal resources in areas that are not usually considered economically viable due to a lack of water and/or the ability of that water to pass

  15. Basic Energy Sciences

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Basic Energy Sciences Basic Energy Sciences Supporting research to understand, predict and ultimately control matter and energy at the electronic, atomic, and molecular levels. Get Expertise Toni Taylor (505) 665-0030 Email David Morris (505) 665-6487 Email Claudia Mora (505) 665-7832 Email Research fosters fundamental scientific discoveries to meet energy, environmental, and national security challenges The DOE Office of Science's Basic Energy Sciences program equips scientists with a powerful

  16. Basic Engineering Research for D and D of R Reactor Storage Pond Sludge: Electrokinetics, Carbon Dioxide Extraction, and Supercritical Water Oxidation

    SciTech Connect (OSTI)

    Michael A. Matthews; David A. Bruce,; Thomas A. Davis; Mark C. Thies; John W. Weidner; Ralph E. White

    2002-04-01

    Large quantities of mixed low level waste (MLLW) that fall under the Toxic Substances Control Act (TSCA) exist and will continue to be generated during D and D operations at DOE sites across the country. The standard process for destruction of MLLW is incineration, which has an uncertain future. The extraction and destruction of PCBs from MLLW was the subject of this research Supercritical Fluid Extraction (SFE) with carbon dioxide with 5% ethanol as cosolvent and Supercritical Waster Oxidation (SCWO) were the processes studied in depth. The solid matrix for experimental extraction studies was Toxi-dry, a commonly used absorbent made from plant material. PCB surrogates were 1.2,4-trichlorobenzene (TCB) and 2-chlorobiphenyl (2CBP). Extraction pressures of 2,000 and 4,000 psi and temperatures of 40 and 80 C were studied. Higher extraction efficiencies were observed with cosolvent and at high temperature, but pressure little effect. SCWO treatment of the treatment of the PCB surrogates resulted in their destruction below detection limits.

  17. Spatial and temporal variations in plant water-use efficiency inferred from tree-ring, eddy covariance and atmospheric observations

    DOE PAGES-Beta [OSTI]

    Dekker, Stefan C.; Groenendijk, Margriet; Booth, Ben B. B.; Huntingford, Chris; Cox, Peter M.

    2016-06-28

    Plant water-use efficiency (WUE), which is the ratio of the uptake of carbon dioxide through photosynthesis to the loss of water through transpiration, is a very useful metric of the functioning of the land biosphere. WUE is expected to increase with atmospheric CO2, but to decline with increasing atmospheric evaporative demand – which can arise from increases in near-surface temperature or decreases in relative humidity. We have used Δ13C measurements from tree rings, along with eddy covariance measurements from Fluxnet sites, to estimate the sensitivities of WUE to changes in CO2 and atmospheric humidity deficit. This enables us to reconstructmore » fractional changes in WUE, based on changes in atmospheric climate and CO2, for the entire period of the instrumental global climate record. We estimate that overall WUE increased from 1900 to 2010 by 48 ± 22 %, which is more than double that simulated by the latest Earth System Models. This long-term trend is largely driven by increases in CO2, but significant inter-annual variability and regional differences are evident due to variations in temperature and relative humidity. Here, there are several highly populated regions, such as western Europe and East Asia, where the rate of increase of WUE has declined sharply in the last 2 decades. Our data-based analysis indicates increases in WUE that typically exceed those simulated by Earth System Models – implying that these models are either underestimating increases in photosynthesis or underestimating reductions in transpiration.« less

  18. NASA's Marshall Space Flight Center Saves Water With High-Efficiency Toilet and Urinal Program: Best Management Practice Case Study #6 - Toilets and Urinals (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-02-01

    The National Aeronautics and Space Administration's (NASA) Marshall Space Flight Center (MSFC) has a longstanding, successful sustainability program that focuses on energy and water efficiency as well as environmental protection. Because MSFC was built in the 1960s, most of the buildings house outdated, inefficient restroom fixtures. The facility engineering team at MSFC developed an innovative efficiency model for replacing these older toilets and urinals.

  19. Basic photovoltaic principles and methods

    SciTech Connect (OSTI)

    Hersch, P.; Zweibel, K.

    1982-02-01

    This book presents a nonmathematical explanation of the theory and design of photovoltaic (PV) solar cells and systems. The basic elements of PV are introduced: the photovoltaic effect, physical aspects of solar cell efficiency, the typical single-crystal silicon solar cell, advances in single-crystal silicon solar cells. This is followed by the designs of systems constructed from individual cells, including possible constructions for putting cells together and the equipment needed for a practical producer of electrical energy. The future of PV is then discussed. (LEW)

  20. LED Lighting Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    LED Lighting Basics LED Lighting Basics August 16, 2013 - 10:07am Addthis Light-emitting diodes (LEDs) efficiently produce light in a fundamentally different way than any legacy or traditional light source. LEDs are compound semiconductor devices that produce light when an appropriate electrical current is applied. Applying electrical current causes electrons to flow from one material in the structure to another and this in turn causes a series of complex interactions at an atomic level that

  1. Fluorescent Lighting Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Fluorescent Lighting Basics Fluorescent Lighting Basics October 17, 2013 - 5:39pm Addthis Light from a fluorescent lamp is first created by an electric current conducted through an inert gas producing ultraviolet light that is invisible to the human eye. The ultraviolet light in turn interacts with special blends of phosphors coating the interior surface of the fluorescent lamp tube that efficiently converts the invisible light into useful white light. Fluorescent lamps require a special power

  2. Fluorescent Lighting Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Fluorescent Lighting Basics Fluorescent Lighting Basics October 17, 2013 - 5:39pm Addthis Light from a fluorescent lamp is first created by an electric current conducted through an inert gas producing ultraviolet light that is invisible to the human eye. The ultraviolet light in turn interacts with special blends of phosphors coating the interior surface of the fluorescent lamp tube that efficiently converts the invisible light into useful white light. Fluorescent lamps require a special power

  3. Fuel Cell Vehicle Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vehicles & Fuels » Vehicles » Fuel Cell Vehicle Basics Fuel Cell Vehicle Basics August 20, 2013 - 9:11am Addthis Photo of a blue car with 'The Road to Hydrogen' written on it, filling up at a hydrogen fueling station. Fuel cell vehicles, powered by hydrogen, could greatly improve the sustainability of our transportation sector. Although electricity production may contribute to air pollution, they are more efficient than conventional internal combustion engine vehicles and produce no

  4. Biomass Basics Webinar

    Energy.gov [DOE]

    The Bioenergy Technologies Office (BETO) is hosting a Biomass Basics Webinar on August 27, 2015, from 4:00-4:40pm EDT. This webinar will provide high school students and teachers with background...

  5. Furnace and Boiler Basics

    Energy.gov [DOE]

    Furnaces heat air and distribute the heated air through a building using ducts; boilers heat water, providing either hot water or steam for heating.

  6. Geothermal Energy Basics | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    You are here Home » Information Resources » Geothermal Basics Geothermal Basics Geothermal heat is most prevalent in the western United States, where the heat resource can sometimes be spotted from the earth's surface. Geothermal heat is most prevalent in the western United States, where the heat resource can sometimes be spotted from the earth's surface. Geothermal energy-geo (earth) + thermal (heat)-is heat energy from the earth. What is a geothermal resource? Geothermal resources are

  7. Wind Energy Technology Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy » Wind Energy Technology Basics Wind Energy Technology Basics August 15, 2013 - 4:10pm Addthis Photo of a hilly field, with six visible wind turbines spinning in the wind. Wind energy technologies use the energy in wind for practical purposes such as generating electricity, charging batteries, pumping water, and grinding grain. Wind energy is a result of the sun's uneven heating of the atmosphere, the earth's irregular surfaces (mountains and valleys), and the planet's

  8. Vehicle Emission Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Emission Basics Vehicle Emission Basics November 22, 2013 - 2:07pm Addthis Vehicle emissions are the gases emitted by the tailpipes of vehicles that use internal combustion engines. These vehicles can run on gasoline, diesel, biofuels, natural gas, or propane. Vehicle emissions are composed of varying amounts of: water vapor carbon dioxide (CO2) nitrogen oxygen pollutants such as: carbon monoxide (CO) nitrogen oxides (NOx) unburned hydrocarbons (UHCs) volatile organic compounds (VOCs)

  9. Concentrating Solar Power Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Solar » Concentrating Solar Power Basics Concentrating Solar Power Basics August 20, 2013 - 4:38pm Addthis Text Version This solar concentrator has a fixed-focus faceted dish with a concentration of about 250 suns. This system can be used for large fields connected to the utility grid, hydrogen generation, or water pumping. Credit: Science Applications International Corporation / PIX 13464 Concentrating solar power (CSP) technologies use mirrors to reflect and concentrate sunlight onto a single

  10. Geothermal Electricity Production Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Electricity Production Basics Geothermal Electricity Production Basics August 14, 2013 - 1:49pm Addthis A photo of steam emanating from geothermal power plants at The Geysers in California. Geothermal energy originates from deep within the Earth and produces minimal emissions. Photo credit: Pacific Gas & Electric Heat from the earth-geothermal energy-heats water that has seeped into underground reservoirs. These reservoirs can be tapped for a variety of uses, depending on the temperature of

  11. Geothermal Resource Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy » Geothermal » Geothermal Resource Basics Geothermal Resource Basics August 14, 2013 - 1:58pm Addthis Although geothermal heat pumps can be used almost anywhere, most direct-use and electrical production facilities in the United States are located in the west, where the geothermal resource base is concentrated. Current drilling technology limits the development of geothermal resources to relatively shallow water- or steam-filled reservoirs, most of which are found in the

  12. Hydrogen Fuel Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy » Hydrogen & Fuel Cells » Hydrogen Fuel Basics Hydrogen Fuel Basics August 14, 2013 - 2:06pm Addthis Hydrogen is a clean fuel that, when consumed in a fuel cell, produces only water. Hydrogen can be produced from a variety of domestic resources, such as natural gas, nuclear power, biomass, and renewable power like solar and wind. These qualities make it an attractive fuel option for transportation and electricity generation applications. It can be used in cars, in houses,

  13. Geothermal Technology Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy » Geothermal Technology Basics Geothermal Technology Basics August 14, 2013 - 1:45pm Addthis Photo of steam pouring out of a geothermal plant. Geothermal technologies use the clean, sustainable heat from the Earth. Geothermal resources include the heat retained in shallow ground, hot water and rock found a few miles beneath the Earth's surface, and extremely high-temperature molten rock called magma located deep in the Earth. Learn more about: Direct-Use Geothermal Technologies

  14. Renewable Energy Technology Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy Technology Basics Renewable Energy Technology Basics Renewable energy technologies produce sustainable, clean energy from sources such as the sun, the wind, plants, and water. According to the Energy Information Administration, in 2007, renewable sources of energy accounted for about 7% of total energy consumption and 9.4% of total electricity generation in the United States. Renewable energy technologies have the potential to strengthen our nation's energy security, improve

  15. Active Solar Heating Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Active Solar Heating Basics Active Solar Heating Basics August 16, 2013 - 3:23pm Addthis There are two basic types of active solar heating systems based on the type of fluid-either liquid or air-that is heated in the solar energy collectors. The collector is the device in which a fluid is heated by the sun. Liquid-based systems heat water or an antifreeze solution in a "hydronic" collector, whereas air-based systems heat air in an "air collector." Both of these systems

  16. An Innovative System for the Efficient and Effective Treatment of Non-Traditional Waters for Reuse in Thermoelectric Power Generation

    SciTech Connect (OSTI)

    John Rodgers; James Castle

    2008-08-31

    This study assessed opportunities for improving water quality associated with coal-fired power generation including the use of non-traditional waters for cooling, innovative technology for recovering and reusing water within power plants, novel approaches for the removal of trace inorganic compounds from ash pond effluents, and novel approaches for removing biocides from cooling tower blowdown. This research evaluated specifically designed pilot-scale constructed wetland systems for treatment of targeted constituents in non-traditional waters for reuse in thermoelectric power generation and other purposes. The overall objective of this project was to decrease targeted constituents in non-traditional waters to achieve reuse criteria or discharge limitations established by the National Pollutant Discharge Elimination System (NPDES) and Clean Water Act (CWA). The six original project objectives were completed, and results are presented in this final technical report. These objectives included identification of targeted constituents for treatment in four non-traditional water sources, determination of reuse or discharge criteria for treatment, design of constructed wetland treatment systems for these non-traditional waters, and measurement of treatment of targeted constituents in non-traditional waters, as well as determination of the suitability of the treated non-traditional waters for reuse or discharge to receiving aquatic systems. The four non-traditional waters used to accomplish these objectives were ash basin water, cooling water, flue gas desulfurization (FGD) water, and produced water. The contaminants of concern identified in ash basin waters were arsenic, chromium, copper, mercury, selenium, and zinc. Contaminants of concern in cooling waters included free oxidants (chlorine, bromine, and peroxides), copper, lead, zinc, pH, and total dissolved solids. FGD waters contained contaminants of concern including arsenic, boron, chlorides, selenium, mercury

  17. Absorption Heat Pump Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Heat Pump Basics Absorption Heat Pump Basics August 19, 2013 - 11:11am Addthis Absorption heat pumps are essentially air-source heat pumps driven not by electricity, but by a heat source such as natural gas, propane, solar-heated water, or geothermal-heated water. Because natural gas is the most common heat source for absorption heat pumps, they are also referred to as gas-fired heat pumps. There are also absorption coolers available that work on the same principal, but are not reversible and

  18. Heating System Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    System Basics Heating System Basics August 16, 2013 - 2:32pm Addthis A variety of heating technologies are available today. You can learn more about what heating systems and heat pumps are commonly used today and how they work below. To learn how to use these technologies in your own home, see the Home Heating Systems section on Energy Saver. Furnaces and Boilers Furnaces heat air and distribute the heated air through a building using ducts. Boilers heat water, providing either hot water or

  19. Ethanol Basics (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01

    Ethanol is a widely-used, domestically-produced renewable fuel made from corn and other plant materials. More than 96% of gasoline sold in the United States contains ethanol. Learn more about this alternative fuel in the Ethanol Basics Fact Sheet, produced by the U.S. Department of Energy's Clean Cities program.

  20. Home and Building Technology Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Home and Building Technology Basics Home and Building Technology Basics Homes and other buildings use energy every day for space heating and cooling, for lighting and hot water, and for appliances and electronics. Today's buildings consume more energy than any other sector of the U.S. economy, including transportation and industry. Learn more about: Heating and Cooling Passive Solar Design Water Heating Lighting and Daylighting Energy Basics Home Renewable Energy Homes & Buildings Lighting

  1. Water Efficiency Improvements at Various Environmental Protection Agency Sites: Best Management Practice Case Study #12 - Laboratory/Medical Equipment (Brochure)

    SciTech Connect (OSTI)

    Blakley, H.

    2011-03-01

    The U.S. Environmental Protection Agency (EPA) built a successful water conservation program and reduced potable water use through a series of initiatives at EPA laboratories. The projects highlighted in this case study demonstrate EPA's ability to reduce water use in laboratory and medical equipment by implementing vacuum pump and steam sterilizer replacements and retrofits. Due to the success of the initial vacuum pump and steam sterilizer projects described here, EPA is implementing similar projects at several laboratories throughout the nation.

  2. Biofuels Basics | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Biofuels Basics Unlike other renewable energy sources, biomass can be converted directly into liquid fuels, called "biofuels," to help meet transportation fuel needs. The two most common types of biofuels in use today are ethanol and biodiesel. Ethanol is an alcohol, the same as in beer and wine (although ethanol used as a fuel is modified to make it undrinkable). It is most commonly made by fermenting any biomass high in carbohydrates through a process similar to beer brewing. Today,

  3. Wind Energy Basics | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    ... How Wind Turbines Work U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy. Photo of a girl and a boy standing beneath a large wind turbine. Students can ...

  4. Building the Basic PVC Wind Turbine

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Building the Basic PVC Wind Turbine Grades: 5-8, 9-12 Topic: Wind Energy Owner: Kidwind Project This educational material is brought to you by the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy. Building the Basic PVC Wind Turbine Copyright ©2007 Kidwind Project 2093 Sargent Avenue Saint Paul, MN 55105 http://www.kidwind.org Energy Smart CD- Building PVC Turbine 1 This work may not be reproduced by mechanical or electronic means without written permission from

  5. Biomass Energy Basics | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Biomass Energy Basics We have used biomass energy, or "bioenergy"-the energy from plants and plant-derived materials-since people began burning wood to cook food and keep warm. Wood is still the largest biomass energy resource today, but other sources of biomass can also be used. These include food crops, grassy and woody plants, residues from agriculture or forestry, oil-rich algae, and the organic component of municipal and industrial wastes. Even the fumes from landfills (which are

  6. Land Use and Water Efficiency in Current and Potential Future U.S. Corn and Brazilian Sugarcane Ethanol Systems (Poster)

    SciTech Connect (OSTI)

    Warner, E.; Zhang, Y.; Chum, H.; Newmark, R.

    2012-11-01

    The potential for unintended consequences of biofuels--competition for land and water--necessitates that sustainable biofuel expansion considers the complexities of resource requirements within specific context (e.g., technology, feedstock, supply chain, local resource availability).

  7. Microhydropower Conveyance and Filter Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Conveyance and Filter Basics Microhydropower Conveyance and Filter Basics August 16, 2013 - 3:53pm Addthis Before water enters the turbine or waterwheel of a microhydropower system, it is funneled through a series of components that control its flow and filter out debris. These components include the headrace, forebay, and water conveyance (or channel, pipeline, or penstock). The headrace is a waterway that runs parallel to the water source. A headrace is sometimes necessary for hydropower

  8. water scarcity

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  9. water savings

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  10. water infrastructure

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  11. Water Demand

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  12. drinking water

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    drinking water - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us ... Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ...

  13. Water Security

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Water Security - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us ... Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ...

  14. Water Power

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  15. Basic hydrodynamic aspects of a solar energy based desalination process

    SciTech Connect (OSTI)

    Bemporad, G.A.

    1995-02-01

    The theoretical feasibility of a solar energy based desalination scheme is analyzed in this study. The proposed scheme exploits the vapor pressure difference between fluids of different salinities and temperatures to produce fresh water from seawater. The scheme`s basic components are a seawater column, an injection pipe heated on top through a heat exchanger loop, a withdrawal pipe, a vacuum chamber filled with vapour, and a fresh water column cooled on top where vapour condenses into fresh water. A mathematical model was developed to simulate unsteady mass, heat and solute transfer during the desalination process. The governing equations were integrated numerically in space and time through a finite difference technique. The numerical simulations considered both steady-state and time dependent heat sources. The numerical results proved the theoretical feasibility of the proposed desalination scheme. However, the presence of an unsteady heat source, typical to solar energy based schemes, may lead to an unstable density profile in the water column and reduce the scheme efficiency if not properly controlled. 16 refs., 8 figs.

  16. In-plane heterojunctions enable multiphasic two-dimensional (2D) MoS2 nanosheets as efficient photocatalysts for hydrogen evolution from water reduction

    DOE PAGES-Beta [OSTI]

    Peng, Rui; Liang, Liangbo; Hood, Zachary D.; Boulesbaa, Abdelaziz; Puretzky, Alexander; Ievlev, Anton V.; Come, Jeremy; Ovchinnikova, Olga S.; Wang, Hui; Ma, Cheng; et al

    2016-08-30

    Two-dimensional (2D) single-layer MoS2 nanosheets are demonstrated as efficient photocatalysts for hydrogen evolution reaction (HER) from water reduction, thanks to specific in-plane heterojunctions constructed in the MoS2 monolayer. These functional heterojunctions are formed among the different phases of chemically exfoliated MoS2 monolayers: semiconducting 2H, metallic 1T, and quasi-metallic 1T' phases. The proportion of the three MoS2 phases can be systematically controlled via thermal annealing of the nanosheets. Interestingly, a volcano relationship is observed between the photocatalytic HER activity and the annealing temperature with an optimum activity obtained after annealing at 60 °C. First-principles calculations were integrated with experimental studies tomore » shed light on the role of the multiphases of MoS2 and reveal that optimum photocatalytic HER activity results from the formation of the in-plane heterojunctions between 1T' MoS2 and 2H MoS2. Importantly, this facilitates not only balanced light absorption and charge generation by the 2H phase, efficient charge separation at the 1T'/2H interface, but also favorable HER over the basal sites of 1T' MoS2. Furthermore, our work manifests how the confluence of the optical, electronic and chemical properties of 2D MoS2 monolayers can be fully captured for efficient photocatalytic water reduction.« less

  17. BasicODT

    Energy Science and Technology Software Center (OSTI)

    2007-09-25

    BasicODT is a Monte Carlo simulation that numerically implements One-Dimensional Turbulence (ODT), a stochastic model of turbulent flow that was developed by the author of the code. This code is set up to simulate channel flow, which is the flow between two parallel flat walls driven by a fixed pressure gradient, with no-slip conditions at the walls. The code writes output files containing flow statistics gathered during the simulation. The code is accompanied by documentationmore » that explains how ODT modeling principles are numerically implemented within the code. The code and documentation are intended as an introduction to ODT for use as a learning tool for people who are unfamiliar with the model and its numerical implementation. ODT is fully described in published literature.« less

  18. LED Basics | Department of Energy

    Office of Environmental Management (EM)

    Understanding SSL LED Basics LED Basics Unlike incandescent lamps, LEDs are not ... Learn more about cost-effectiveness trends in the latest SSL R&D Plan. Resources R&D Plan ...

  19. SSL Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    SSL Basics SSL Basics Solid-state lighting (SSL) differs from other kinds of lighting in that it's based on light-emitting diodes (LEDs) or organic LEDs (OLEDs) instead of ...

  20. Infrared Basics | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Infrared Basics Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Infrared Basics Author Protherm Published Publisher Not Provided, 2013 DOI Not Provided...

  1. Guidance on Basic Best Practices in Management of Energy Performance

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Buildings | Department of Energy on Basic Best Practices in Management of Energy Performance Buildings Guidance on Basic Best Practices in Management of Energy Performance Buildings Building energy management best practices 11_001_eecbg_sep_building_best_practice.pdf (206.26 KB) More Documents & Publications Energy Efficiency and Conservation Block Grant Financing Program Guidance Grantee Letter SEP Guidance National Energy Policy Act Guide for State Energy Program and Energy Efficiency

  2. Comparison of Test Procedures and Energy Efficiency Criteria in Selected International Standards and Labeling Programs for Clothes Washers, Water Dispensers, Vending Machines and CFLs

    SciTech Connect (OSTI)

    Fridley, David; Zheng, Nina; Zhou, Nan

    2010-06-01

    Since the late 1970s, energy labeling programs and mandatory energy performance standards have been used in many different countries to improve the efficiency levels of major residential and commercial equipment. As more countries and regions launch programs covering a greater range of products that are traded worldwide, greater attention has been given to harmonizing the specific efficiency criteria in these programs and the test methods for measurements. For example, an international compact fluorescent light (CFL) harmonization initiative was launched in 2006 to focus on collaboration between Australia, China, Europe and North America. Given the long history of standards and labeling programs, most major energy-consuming residential appliances and commercial equipment are already covered under minimum energy performance standards (MEPS) and/or energy labels. For these products, such as clothes washers and CFLs, harmonization may still be possible when national MEPS or labeling thresholds are revised. Greater opportunity for harmonization exists in newer energy-consuming products that are not commonly regulated but are under consideration for new standards and labeling programs. This may include commercial products such as water dispensers and vending machines, which are only covered by MEPS or energy labels in a few countries or regions. As China continues to expand its appliance standards and labeling programs and revise existing standards and labels, it is important to learn from recent international experiences with efficiency criteria and test procedures for the same products. Specifically, various types of standards and labeling programs already exist in North America, Europe and throughout Asia for products in China's 2010 standards and labeling programs, namely clothes washers, water dispensers, vending machines and CFLs. This report thus examines similarities and critical differences in energy efficiency values, test procedure specifications and other

  3. Water Power

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Stationary PowerEnergy Conversion EfficiencyWater Power Water Power Tara Camacho-Lopez 2016-06-01T22:32:54+00:00 Enabling a successful water power industry. Hydropower ...

  4. Microhydropower Turbine, Pump, and Waterwheel Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Turbine, Pump, and Waterwheel Basics Microhydropower Turbine, Pump, and Waterwheel Basics August 16, 2013 - 3:58pm Addthis A microhydropower system needs a turbine, pump, or waterwheel to transform the energy of flowing water into rotational energy, which is then converted into electricity. Turbines Turbines are commonly used to power microhydropower systems. The moving water strikes the turbine blades, much like a waterwheel, to spin a shaft. But turbines are more compact in relation to their

  5. Geothermal Direct-Use Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Direct-Use Basics Geothermal Direct-Use Basics August 14, 2013 - 1:46pm Addthis Hot water near the surface of the Earth can be used for heat for a variety of commercial and industrial uses. Direct-use applications include heating buildings, growing plants in greenhouses, drying crops, heating water at fish farms, and several industrial processes such as pasteurizing milk. Learn more about direct-use of geothermal applications from the EERE Geothermal Technologies Office. Addthis Related Articles

  6. Hydrogen and Fuel Cell Technology Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Hydrogen and Fuel Cell Technology Basics Hydrogen and Fuel Cell Technology Basics August 14, 2013 - 2:01pm Addthis Photo of a scientist testing a photoelectrochemical water splitting system. Hydrogen is the simplest and most abundant element in the universe. It is a major component of water, oil, natural gas, and all living matter. Despite its simplicity and abundance, hydrogen rarely occurs naturally as a gas on Earth. It is almost always combined with other elements. It can be generated from

  7. Biodiesel Basics (Fact Sheet), Clean Cities, Energy Efficiency...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Using biodiesel in place of petroleum diesel significantly reduces lifecycle carbon ... Biodiesel blends Biodiesel can be blended and used in many different concentrations, ...

  8. Ethanol Basics (Fact Sheet), Clean Cities, Energy Efficiency...

    Alternative Fuels and Advanced Vehicles Data Center

    ... Fuel tank: Must be made of ethanol-compatible materials and designed to minimize evaporative emissions from ethanol Fuel system electrical connections and wiring: Must be ...

  9. Photovoltaic Cell Quantum Efficiency Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... shines through a sample of transparent material containing quantum dots, tiny nanoparticles that can be used to harness solar energy for electricity. | Photo courtesy of LANL. ...

  10. Biofuels Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Education & Workforce Development » Bioenergy Basics » Biofuels Basics Biofuels Basics Biofuels such as ethanol and biodiesel can make a big difference in improving our environment, helping our economy, and reducing our dependence on foreign oil. This page discusses biofuels research supported by the Bioenergy Technologies Office. Biofuels for Transportation Ethanol Biodiesel Renewable Diesel Biofuels for Transportation Most vehicles on the road today are fueled by gasoline and diesel

  11. Office of Basic Energy Sciences; ...

    Office of Scientific and Technical Information (OSTI)

    Final Technical Report submitted to the Department of Energy - Office of Basic Energy Sciences; Dr. Lane C. Wilson, Program Manager Period of performance for Sept 15, 2010 - Sept ...

  12. NREL: Learning - Solar Energy Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Basics Photo of a solar electric system in Colorado with snow-covered mountain ... & Renewable Energy Solar Energy Conversion Data U.S. Energy Information Administration

  13. Solar Photovoltaic Technology Basics | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Solar Photovoltaic Technology Basics Solar cells, also called photovoltaic (PV) cells by scientists, convert sunlight directly into electricity. PV gets its name from the process ...

  14. Hybrid Electric Vehicle Basics | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Hybrid Electric Vehicle Basics Today's hybrid electric vehicles (HEVs) range from small passenger cars to sport utility vehicles (SUVs) and large trucks. Though they often look ...

  15. ANALYSIS OF THE LEACHING EFFICIENCY OF INHIBITED WATER AND TANK SIMULANT IN REMOVING RESIDUES ON THERMOWELL PIPES

    SciTech Connect (OSTI)

    Fondeur, F.; White, T.; Oji, L.; Martino, C.; Wilmarth, B.

    2011-10-20

    A key component for the accelerated implementation and operation of the Salt Waste Processing Facility (SWPF) is the recovery of Tank 48H. Tank 48H is a type IIIA tank with a maximum capacity of 1.3 million gallons. Video inspection of the tank showed that a film of solid material adhered to the tank internal walls and structures between 69 inch and 150 inch levels. From the video inspection, the solid film thickness was estimated to be 1mm, which corresponds to {approx}33 kg of TPB salts (as 20 wt% insoluble solids) (1). This film material is expected to be easily removed by single-rinse, slurry pump operation during Tank 48H TPB disposition via aggregation processing. A similar success was achieved for Tank 49H TPB dispositioning, with slurry pumps operating almost continuously for approximately 6 months, after which time the tank was inspected and the film was found to be removed. The major components of the Tank 49H film were soluble solids - Na{sub 3}H(CO{sub 3}){sub 2} (Hydrated Sodium Carbonate, aka: Trona), Al(OH){sub 3} (Aluminum Hydroxide, aka: Gibbsite), NaTPB (Sodium Tetraphenylborate), NaNO{sub 3} (Sodium Nitrate) and NaNO{sub 2} (Sodium Nitrite) (2). Although the Tank 48H film is expected to be primarily soluble solids, it may not behave the same as the Tank 49H film. There is a risk that material on the internal surfaces of Tank 48H could not be easily removed. As a risk mitigation activity, the chemical composition and leachability of the Tank 48H film are being evaluated prior to initiating tank aggregation. This task investigated the dissolution characteristics of Tank 48H solid film deposits in inhibited water and DWPF recycle. To this end, SRNL received four separate 23-inch long thermowell-conductivity pipe samples which were removed from the tank 48H D2 risers in order to determine: (1) the thickness of the solid film deposit, (2) the chemical composition of the film deposits, and (3) the leaching behavior of the solid film deposit in

  16. Basic research challenges in crystalline silicon photovoltaics

    SciTech Connect (OSTI)

    Werner, J.H.

    1995-08-01

    Silicon is abundant, non-toxic and has an ideal band gap for photovoltaic energy conversion. Experimental world record cells of 24 % conversion efficiency with around 300 {mu}m thickness are only 4 % (absolute) efficiency points below the theoretical Auger recombination-limit of around 28 %. Compared with other photovoltaic materials, crystalline silicon has only very few disadvantages. The handicap of weak light absorbance may be mastered by clever optical designs. Single crystalline cells of only 48 {mu}m thickness showed 17.3 % efficiency even without backside reflectors. A technology of solar cells from polycrystalline Si films on foreign substrates arises at the horizon. However, the disadvantageous, strong activity of grain boundaries in Si could be an insurmountable hurdle for a cost-effective, terrestrial photovoltaics based on polycrystalline Si on foreign substrates. This talk discusses some basic research challenges related to a Si based photovoltaics.

  17. Estimating Costs and Efficiency of Storage, Demand, and Heat...

    Energy Savers

    Estimating Costs and Efficiency of Storage, Demand, and Heat Pump Water Heaters Estimating Costs and Efficiency of Storage, Demand, and Heat Pump Water Heaters A water heater's ...

  18. Estimating Costs and Efficiency of Storage, Demand, and Heat...

    Energy Savers

    Costs and Efficiency of Storage, Demand, and Heat Pump Water Heaters Estimating Costs and Efficiency of Storage, Demand, and Heat Pump Water Heaters A water heater's energy ...

  19. Hydropower Resource Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy Hydropower Hydropower Resource Basics Hydropower Resource Basics August 16, 2013 ... Energy Basics Home Renewable Energy Biomass Geothermal Hydrogen & Fuel Cells ...

  20. Vehicle Battery Basics | Department of Energy

    Office of Environmental Management (EM)

    Battery Basics Vehicle Battery Basics November 22, 2013 - 1:58pm Addthis Vehicle Battery Basics Batteries are essential for electric drive technologies such as hybrid electric ...

  1. Basic concepts of contaminant sorption. Summary paper

    SciTech Connect (OSTI)

    Not Available

    1993-01-01

    The Robert S. Kerr Environmental Research Laboratory (RSKERL) has developed a number of issue papers and briefing documents which are designed to exchange up-to-date information related to the remediation of contaminated soil and ground water at hazardous waste sites. In an attempt to make the content of these documents available to a wider audience, RSKERL is developing a series of summary papers which are condensed versions of the original documents. Understanding the processes which dictate transport and fate characteristics of contaminants in soil and ground water is of paramount importance in designing and implementing remediation systems at hazardous waste sites. Sorption is often the most significant of these processes. The summary paper addresses the basic concepts of sorption in soil and ground water with an emphasis on organic contaminants having the characteristics of those often found at existing hazardous waste sites.

  2. Elevated CO2 increases tree-level intrinsic water use efficiency: insights from carbon and oxygen isotope analyses in tree rings across three forest FACE sites

    SciTech Connect (OSTI)

    Battipaglia, Giovanna [Second University of Naples; Saurer, Matthias [Paul Scherrer Institut, Villigen, Switzerland; Cherubini, Paulo [WSL Swiss Federal Institute for Forest, Snow and Landscape Research; Califapietra, Carlo [University of Tuscia; McCarthy, Heather R [Duke University; Norby, Richard J [ORNL; Cotrufo, M. Francesca [Colorado State University, Fort Collins

    2013-01-01

    Elevated CO2 increases intrinsic water use efficiency (WUEi) of forests, but the magnitude of this effect and its interaction with climate is still poorly understood. We combined tree ring analysis with isotope measurements at three Free Air CO2 Enrichment (FACE, POP-EUROFACE, in Italy; Duke FACE in North Carolina and ORNL in Tennessee, USA) sites, to cover the entire life of the trees. We used 13C to assess carbon isotope discrimination ( 13C ci/ca) and changes in WUEi, while direct CO2 effects on stomatal conductance were explored using 18O as a proxy. Across all the sites, elevated CO2 increased 13C-derived WUEi on average by 73% for Liquidambar styraciflua, 77% for Pinus taeda and 75% for Populus sp., but through different ecophysiological mechanisms. Our findings provide a robust means of predicting WUEi responses from a variety of tree species exposed to variable environmental conditions over time, and species-specific relationships that can help modeling elevated CO2 and climate impacts on forest productivity, carbon and water balances.

  3. Petrochemical feedstock from basic oxygen steel furnace

    SciTech Connect (OSTI)

    Greenwood, C.W.; Hardwick, W.E.

    1983-10-01

    Iron bath gasification in which coal, lime, steam and oxygen are injected into a bath of molten iron for the production of a medium-Btu gas is described. The process has its origin in basic oxygen steelmaking. It operates at high temperatures and is thus not restrictive on the type of coal used. The ash is retained in the slag. The process is also very efficient. The authors suggest that in the present economic climate in the iron and steel industry, such a plant could be sited where existing coal-handling, oxygen and steelmaking equipment are available.

  4. Brochure, A Basic Overview of the Integrated Safety Management (ISM) |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy A Basic Overview of the Integrated Safety Management (ISM) Brochure, A Basic Overview of the Integrated Safety Management (ISM) September 7, 2012 The Integrated Safety Management Brochure provides the overview, objective, guiding principles, core functions, safety culture elements, and points-of-contact for the ISM approach. ISM is the Department of Energy's corporate approach for efficiently achieving its mission goals while maintaining the highest standard of safe

  5. Combined Heat and Power Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Technical Assistance » Combined Heat & Power Deployment » Combined Heat and Power Basics Combined Heat and Power Basics Combined heat and power (CHP), also known as cogeneration, is: A process flow diagram showing efficiency benefits of CHP The concurrent production of electricity or mechanical power and useful thermal energy (heating and/or cooling) from a single source of energy. A type of distributed generation, which, unlike central station generation, is located at or near the point

  6. NREL: Learning - Geothermal Energy Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Geothermal Energy Basics Photo of a hot spring. The Earth's heat-called geothermal energy-escapes as steam at a hot springs in Nevada. Many technologies have been developed to take...

  7. NREL: Learning - Biomass Energy Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Biomass Energy Basics Photo of a farmer standing in a field and inspecting corn crops. We have used biomass energy, or "bioenergy"-the energy from plants and plant-derived...

  8. Bioenergy Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Education & Workforce Development » Bioenergy Basics Bioenergy Basics Biomass is an energy resource derived from organic matter, which includes wood, agricultural waste, and other living-cell material that can be burned to produce heat energy. It also includes algae, sewage, and other organic substances that may be used to make energy through chemical processes. Biomass currently supplies about 3% of total U.S. energy consumption in the form of electricity, process heat, and transportation

  9. Biofuel Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biofuel Basics Biofuel Basics July 30, 2013 - 11:38am Addthis Text Version Photo of a woman in goggles handling a machine filled with biofuels. Most vehicles on the road today run on gasoline and diesel fuels, which are produced from oil-a non-renewable resource, meaning supplies are limited. Renewable resources, in contrast, are constantly replenished and are unlikely to run out. Biomass is one type of renewable resource that can be converted into liquid fuels (biofuels) for transportation.

  10. Biopower Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biopower Basics Biopower Basics August 14, 2013 - 12:35pm Addthis Biopower is the production of electricity or heat from biomass resources. With 10 gigawatts of installed capacity, biopower technologies are proven options in the United States today. Biopower technologies include direct combustion, co-firing, gasification, and anaerobic digestion. Direct Combustion Most electricity generated from biomass is produced by direct combustion using conventional boilers. These boilers primarily burn

  11. Biopower Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biopower Basics Biopower Basics Biomass power (biopower) technologies convert renewable biomass fuels into heat and electricity using processes similar to that used with fossil fuels. Next to hydropower, more electricity is generated from biomass than any other renewable energy resource in the United States. A key attribute of biomass is its availability upon demand-the energy is stored within the biomass until it is needed; whereas, other forms of renewable energy are dependent on variable

  12. Bioproducts Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Bioproducts Basics Bioproducts Basics Today, petroleum is refined to make chemical feedstocks used in thousands of products. Many of these petroleum-based feedstocks could be replaced with value-added chemicals produced from biomass to manufacture clothing, plastics, lubricants, and other products. The emerging U.S. biobased products industry combines expertise and technology from the agriculture, forest products, and chemical industries to create plastics, chemicals, and composite materials

  13. Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    repository and the Principal Investigator (PI) for ALICE computing at NERSC is Jeff Porter. ALICE users work in the sl53 chos environment. See the Chos page for more...

  14. Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    in HPSS. The Principal Investigator (PI) for STAR computing at NERSC is Jeff Porter. In general STAR users should work in the chos environment sl53. This means that upon...

  15. Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Daya Bay has two "production accounts". The dayabay account is used for the automated software builds on common as well as for the diagnostic testing of the processed raw data...

  16. Alternative Fuels Data Center: Electricity Fuel Basics

    Alternative Fuels and Advanced Vehicles Data Center

    Electricity Fuel Basics to someone by E-mail Share Alternative Fuels Data Center: Electricity Fuel Basics on Facebook Tweet about Alternative Fuels Data Center: Electricity Fuel Basics on Twitter Bookmark Alternative Fuels Data Center: Electricity Fuel Basics on Google Bookmark Alternative Fuels Data Center: Electricity Fuel Basics on Delicious Rank Alternative Fuels Data Center: Electricity Fuel Basics on Digg Find More places to share Alternative Fuels Data Center: Electricity Fuel Basics on

  17. Alternative Fuels Data Center: Ethanol Fuel Basics

    Alternative Fuels and Advanced Vehicles Data Center

    Fuel Basics to someone by E-mail Share Alternative Fuels Data Center: Ethanol Fuel Basics on Facebook Tweet about Alternative Fuels Data Center: Ethanol Fuel Basics on Twitter Bookmark Alternative Fuels Data Center: Ethanol Fuel Basics on Google Bookmark Alternative Fuels Data Center: Ethanol Fuel Basics on Delicious Rank Alternative Fuels Data Center: Ethanol Fuel Basics on Digg Find More places to share Alternative Fuels Data Center: Ethanol Fuel Basics on AddThis.com... More in this

  18. Basic research for environmental restoration

    SciTech Connect (OSTI)

    Not Available

    1990-12-01

    The Department of Energy (DOE) is in the midst of a major environmental restoration effort to reduce the health and environmental risks resulting from past waste management and disposal practices at DOE sites. This report describes research needs in environmental restoration and complements a previously published document, DOE/ER-0419, Evaluation of Mid-to-Long Term Basic Research for Environmental Restoration. Basic research needs have been grouped into five major categories patterned after those identified in DOE/ER-0419: (1) environmental transport and transformations; (2) advanced sampling, characterization, and monitoring methods; (3) new remediation technologies; (4) performance assessment; and (5) health and environmental effects. In addition to basic research, this document deals with education and training needs for environmental restoration. 2 figs., 6 tabs.

  19. Financing Basics for RE Projects

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Basics for RE Projects 1 Agenda: * Overview & Summary Findings * Introduction to Project Finance * The Role of the Players * Structure and Negotiation of Key Documents * Conclusions 2 Overview & Summary Findings 3 Renewable Energy Options: * Wind * PV * Solar * Bio * The evaluative parameters used by financiers is different for each of these technologies - Example: DSC for Wind = 1.4 - 1.5; and DSC for Bio (due to fuel risk) = 1.5 - 1.6 4 Basic Elements #1: * Lots of money now available

  20. Hydropower Basics | Department of Energy

    Energy Savers

    Get Adobe Flash player Most people associate water power with the Hoover Dam-a huge ... Some may be very large, but they can be tiny too, taking advantage of water flows in ...

  1. Sandia Energy - Conventional Water Power: Technology Development

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Technology Development Home Stationary Power Energy Conversion Efficiency Water Power Conventional Water Power: Technology Development Conventional Water Power: Technology...

  2. Alternative Water Sources Maps | Department of Energy

    Energy Savers

    Facilities Water Efficiency Alternative Water Sources Maps Alternative Water Sources Maps Rainwater Harvesting Regulations Rainwater Harvesting Regulations Read more ...

  3. Alternative Fuels Data Center: Biodiesel Fuel Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Fuel Basics to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Fuel Basics on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Fuel Basics on Twitter ...

  4. Energy Efficiency Investment Fund Rebates

    Office of Energy Efficiency and Renewable Energy (EERE)

    Specific efficiency requirements for rebates are available at  the Energy Efficiency Investment Fund Website in applications for Lighting and Lighting Control Rebates, Natural Gas and Water Heati...

  5. Alternative Fuels Data Center: Vehicle Conversion Basics

    Alternative Fuels and Advanced Vehicles Data Center

    Vehicle Conversion Basics to someone by E-mail Share Alternative Fuels Data Center: Vehicle Conversion Basics on Facebook Tweet about Alternative Fuels Data Center: Vehicle Conversion Basics on Twitter Bookmark Alternative Fuels Data Center: Vehicle Conversion Basics on Google Bookmark Alternative Fuels Data Center: Vehicle Conversion Basics on Delicious Rank Alternative Fuels Data Center: Vehicle Conversion Basics on Digg Find More places to share Alternative Fuels Data Center: Vehicle

  6. Energy Efficiency Portfolio Standard | Department of Energy

    Energy.gov (indexed) [DOE]

    Energy efficiency technologies defined by the RPS include heat pump water heating, ice storage, ratepayer-funded energy efficiency programs, and the use of rejected...

  7. Biodiesel Basics (Fact Sheet), Vehicle Technologies Program ...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biodiesel Basics (Fact Sheet), Vehicle Technologies Program (VTP) Biodiesel Basics (Fact Sheet), Vehicle Technologies Program (VTP) Fact sheet providing questions and answers on ...

  8. Lesson 2 - Electricity Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2 - Electricity Basics Lesson 2 - Electricity Basics It's difficult to imagine life without convenient electricity. You just flip a switch or plug in an appliance, and it's there....

  9. Crystalline Silicon Photovolatic Cell Basics | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Crystalline Silicon Photovolatic Cell Basics Crystalline Silicon Photovolatic Cell Basics ... This lattice comprises the solid material that forms the photovoltaic (PV) cell's ...

  10. Photovoltaic Technology Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Addthis Related Articles Quiz: Test Your Solar IQ Energy 101: Solar Photovoltaics Photovoltaic Cell Basics Energy Basics Home Renewable Energy Biomass Geothermal Hydrogen & Fuel ...

  11. Photovoltaic Crystalline Silicon Cell Basics | Department of...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Crystalline Silicon Cell Basics Photovoltaic Crystalline Silicon Cell Basics August 20, 2013 - 2:00pm Addthis To separate electrical charges, crystalline silicon cells must have a ...

  12. Photovoltaic Cell Performance Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Performance Basics Photovoltaic Cell Performance Basics August 19, 2013 - 4:55pm Addthis Photovoltaic (PV), or solar cells use the energy in sunlight to produce electricity. ...

  13. Basic Research Needs: Catalysis for Energy

    SciTech Connect (OSTI)

    Bell, Alexis T.; Gates, Bruce C.; Ray, Douglas; Thompson, Michael R.

    2008-03-11

    The report presents results of a workshop held August 6-8, 2007, by DOE SC Basic Energy Sciences to determine the basic research needs for catalysis research.

  14. Solar Energy Resource Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy Solar Solar Energy Resource Basics Solar Energy Resource Basics August 21, 2013 - 11:40am Addthis Solar radiation, often called the solar resource, is a ...

  15. Health Care Buildings : Basic Characteristics Tables

    U.S. Energy Information Administration (EIA) (indexed site)

    Basic Characteristics Tables Buildings and Size Data by Basic Characteristics for Health Care Buildings Number of Buildings (thousand) Percent of Buildings Floorspace (million...

  16. Solar Radiation Basics | Department of Energy

    Energy Savers

    Solar Radiation Basics Solar Radiation Basics August 21, 2013 - 11:40am Addthis Solar radiation, often called the solar resource, is a general term for the electromagnetic ...

  17. Basic Matrix Library (bml), Version 0.x

    Energy Science and Technology Software Center (OSTI)

    2015-11-24

    The basic matrix library (bml) is a collection of various matrix data formats (in dense and sparse) and their associated algorithms for basic matrix operations.

  18. Basic energy properties of electrolytic solutions database. ...

    Office of Scientific and Technical Information (OSTI)

    Basic energy properties of electrolytic solutions database. Viscosity, thermal conductivity, density, enthalpy Citation Details In-Document Search Title: Basic energy properties ...

  19. Energy Efficiency

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    the full transcript of the Energy Efficiency video Learn More Cool School Challenge Money Saving Energy Efficiency Tips Alliance to Save Energy: Consumer Tips Bonneville...

  20. Light Water Reactor Sustainability Program BWR High-Fluence Material Project: Assessment of the Role of High-Fluence on the Efficiency of HWC Mitigation on SCC Crack Growth Rates

    SciTech Connect (OSTI)

    Sebastien Teysseyre

    2014-04-01

    As nuclear power plants age, the increasing neutron fluence experienced by stainless steels components affects the materials resistance to stress corrosion cracking and fracture toughness. The purpose of this report is to identify any new issues that are expected to rise as boiling water reactor power plants reach the end of their initial life and to propose a path forward to study such issues. It has been identified that the efficiency of hydrogen water chemistry mitigation technology may decrease as fluence increases for high-stress intensity factors. This report summarizes the data available to support this hypothesis and describes a program plan to determine the efficiency of hydrogen water chemistry as a function of the stress intensity factor applied and fluence. This program plan includes acquisition of irradiated materials, generation of material via irradiation in a test reactor, and description of the test plan. This plan offers three approaches, each with an estimated timetable and budget.

  1. ADVANCED, ENERGY-EFFICIENT HYBRID MEMBRANE SYSTEM FOR INDUSTRIAL...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ADVANCED, ENERGY-EFFICIENT HYBRID MEMBRANE SYSTEM FOR INDUSTRIAL WATER REUSE ADVANCED, ENERGY-EFFICIENT HYBRID MEMBRANE SYSTEM FOR INDUSTRIAL WATER REUSE Research Triangle ...

  2. Colorado Springs Utilities- Commercial Energy Efficiency Rebate Program

    Energy.gov [DOE]

    The Colorado Springs Utilities (CSU) Business Energy and Water Efficiency Rebate Program offers a variety of incentives to business customers for energy and water efficiency measures. Follow all...

  3. Product Categories Covered by Efficiency Programs

    Energy.gov [DOE]

    Document shows a list of energy- and water-efficient product categories covered by various efficiency programs, including ENERGY STAR, Federal Energy Management Program (FEMP), Electronic Product Environmental Assessment Tool (EPEAT), FEMP Low Standby Power, and WaterSense.

  4. Geothermal Heat Pump Basics | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    They are also more efficient when cooling your home. Not only does this save energy and money, it reduces air pollution. All areas of the United States have nearly constant ...

  5. Alternative Fuel Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Alternative Fuel Basics Alternative Fuel Basics August 19, 2013 - 5:42pm Addthis Photo of a man in goggles looking at test tubes full of biodiesel. There are a number of fuels available for alternative fuel vehicles. Learn about the following types of fuels: Biodiesel Electricity Ethanol Hydrogen Natural Gas Propane Addthis Related Articles Advanced Technology and Alternative Fuel Vehicle Basics Glossary of Energy-Related Terms Natural Gas Fuel Basics Energy Basics Home Renewable Energy Homes

  6. water for energy

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  7. water service provider

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  8. energy-water interdependency

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    water interdependency - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us ... Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ...

  9. "smart water" infrastructure

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    smart water" infrastructure - Sandia Energy Energy Search Icon Sandia Home Locations ... Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ...

  10. Water Power Personnel

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  11. Water Infrastructure Security

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  12. Wind & Water Power Newsletter

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    & Water Power Newsletter - Sandia Energy Energy Search Icon Sandia Home Locations Contact ... Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ...

  13. Water Monitoring & Treatment Technology

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  14. Water Power Technologies

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  15. Energy/Water Nexus

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  16. Energy-Water Nexus

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy-Water Nexus - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us ... Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ...

  17. Ground and excited state properties of high performance anthocyanidin dyes-sensitized solar cells in the basic solutions

    SciTech Connect (OSTI)

    Prima, Eka Cahya; Yuliarto, Brian; Suyatman; Dipojono, Hermawan Kresno

    2015-09-30

    The aglycones of anthocyanidin dyes were previously reported to form carbinol pseudobase, cis-chalcone, and trans-chalcone due to the basic levels. The further investigations of ground and excited state properties of the dyes were characterized using density functional theory with PCM(UFF)/B3LYP/6-31+G(d,p) level in the basic solutions. However, to the best of our knowledge, the theoretical investigation of their potential photosensitizers has never been reported before. In this paper, the theoretical photovoltaic properties sensitized by dyes have been successfully investigated including the electron injections, the ground and excited state oxidation potentials, the estimated open circuit voltages, and the light harvesting efficiencies. The results prove that the electronic properties represented by dyes’ LUMO-HOMO levels will affect to the photovoltaic performances. Cis-chalcone dye is the best anthocyanidin aglycone dye with the electron injection spontaneity of −1.208 eV, the theoretical open circuit voltage of 1.781 V, and light harvesting efficiency of 56.55% due to the best HOMO-LUMO levels. Moreover, the ethanol solvent slightly contributes to the better cell performance than the water solvent dye because of the better oxidation potential stabilization in the ground state as well as in the excited state. These results are in good agreement with the known experimental report that the aglycones of anthocyanidin dyes in basic solvent are the high potential photosensitizers for dye-sensitized solar cell.

  18. Water Efficiency Improvements At Various Environmental Protection Agency Sites: Best Management Practices Case Study #12 „ Laboratory/Medical Equipment (Brochure), Federal Energy Management Program (FEMP)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Environmental Protection Agency (EPA) built a successful water conservation program and reduced potable water use through a series of initiatives at EPA laboratories. EPA completed projects in all of the U.S. Department of Energy (DOE) Federal Energy Management Program's (FEMP) 14 Best Management Practice (BMP) categories. The projects highlighted below demonstrate EPA's ability to reduce water use in the laboratory/medical equipment BMP category by implementing vacuum pump and steam steril-

  19. Federal Water Management

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Water Cycle Potable water: water of sufficient quality for human consumption Industrial landscaping and agricultural (ILA) water: non-potable water from fresh surface or groundwater Alternative water: onsite non- potable water NOT supplied from fresh surface or groundwater Rainwater Reclaimed wastewater Process reuse Graywater Condensate Set goals Assess current water use Develop a water balance Evaluate efficiency Develop a plan Measure progress Water Management Planning Supply Uses Plumbing

  20. NASA's Marshall Space Flight Center Saves Water With High-Efficiency Toilet and Urinal Program: Best Management Practice Case Study #6 „ Toilets and Urinals (Fact Sheet), Federal Energy Management Program (FEMP)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    the National Aeronautics and Space Administration's (NASA) Marshall Space Flight Center (MSFC) has a longstanding, successful sustainability program that focuses on energy and water efficiency as well as environmental protection. MSFC's key operations include propulsion and transportation systems for the space shuttle and Ares rockets. MSFC also provides advanced engineering and operations for International Space Station systems. Located in Huntsville, Alabama, adjacent to Redstone Arsenal, MSFC

  1. Characterization and Alteration of Wettability States of Alaskan Reserviors to Improve Oil Recovery Efficiency (including the within-scope expansion based on Cyclic Water Injection - a pulsed waterflood for Enhanced Oil Recovery)

    SciTech Connect (OSTI)

    Abhijit Dandekar; Shirish Patil; Santanu Khataniar

    2008-12-31

    Numerous early reports on experimental works relating to the role of wettability in various aspects of oil recovery have been published. Early examples of laboratory waterfloods show oil recovery increasing with increasing water-wetness. This result is consistent with the intuitive notion that strong wetting preference of the rock for water and associated strong capillary-imbibition forces gives the most efficient oil displacement. This report examines the effect of wettability on waterflooding and gasflooding processes respectively. Waterflood oil recoveries were examined for the dual cases of uniform and non-uniform wetting conditions. Based on the results of the literature review on effect of wettability and oil recovery, coreflooding experiments were designed to examine the effect of changing water chemistry (salinity) on residual oil saturation. Numerous corefloods were conducted on reservoir rock material from representative formations on the Alaska North Slope (ANS). The corefloods consisted of injecting water (reservoir water and ultra low-salinity ANS lake water) of different salinities in secondary as well as tertiary mode. Additionally, complete reservoir condition corefloods were also conducted using live oil. In all the tests, wettability indices, residual oil saturation, and oil recovery were measured. All results consistently lead to one conclusion; that is, a decrease in injection water salinity causes a reduction in residual oil saturation and a slight increase in water-wetness, both of which are comparable with literature observations. These observations have an intuitive appeal in that water easily imbibes into the core and displaces oil. Therefore, low-salinity waterfloods have the potential for improved oil recovery in the secondary recovery process, and ultra low-salinity ANS lake water is an attractive source of injection water or a source for diluting the high-salinity reservoir water. As part of the within-scope expansion of this project

  2. Alternative Water Sources Map | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Facilities Water Efficiency Alternative Water Sources Map Alternative Water Sources Map The Federal Energy Management Program (FEMP) created the Alternative Water Map to...

  3. Alternative Water Sources Map | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Facilities Water Efficiency Alternative Water Sources Map Alternative Water Sources Map The Federal Energy Management Program (FEMP) created the Alternative Water Map to ...

  4. Large-Scale Hydropower Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy » Hydropower » Large-Scale Hydropower Basics Large-Scale Hydropower Basics August 14, 2013 - 3:11pm Addthis Large-scale hydropower plants are generally developed to produce electricity for government or electric utility projects. These plants are more than 30 megawatts (MW) in size, and there is more than 80,000 MW of installed generation capacity in the United States today. Most large-scale hydropower projects use a dam and a reservoir to retain water from a river. When the

  5. Ocean Thermal Energy Conversion Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy » Ocean » Ocean Thermal Energy Conversion Basics Ocean Thermal Energy Conversion Basics August 16, 2013 - 4:22pm Addthis A process called ocean thermal energy conversion (OTEC) uses the heat energy stored in the Earth's oceans to generate electricity. OTEC works best when the temperature difference between the warmer, top layer of the ocean and the colder, deep ocean water is about 36°F (20°C). These conditions exist in tropical coastal areas, roughly between the Tropic of

  6. Ductless, Mini-Split Heat Pump Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Ductless, Mini-Split Heat Pump Basics Ductless, Mini-Split Heat Pump Basics August 19, 2013 - 11:04am Addthis Ductless, mini-split-system heat pumps (mini splits), as their name implies, do not have ducts. Therefore, they make good retrofit add-ons to houses or buildings with "non-ducted" heating systems, such as hydronic (hot water heat), radiant panels, and space heaters (wood, kerosene, propane). They can also be a good choice for room additions, where extending or installing

  7. PC Basic Linear Algebra Subroutines

    Energy Science and Technology Software Center (OSTI)

    1992-03-09

    PC-BLAS is a highly optimized version of the Basic Linear Algebra Subprograms (BLAS), a standardized set of thirty-eight routines that perform low-level operations on vectors of numbers in single and double-precision real and complex arithmetic. Routines are included to find the index of the largest component of a vector, apply a Givens or modified Givens rotation, multiply a vector by a constant, determine the Euclidean length, perform a dot product, swap and copy vectors, andmore » find the norm of a vector. The BLAS have been carefully written to minimize numerical problems such as loss of precision and underflow and are designed so that the computation is independent of the interface with the calling program. This independence is achieved through judicious use of Assembly language macros. Interfaces are provided for Lahey Fortran 77, Microsoft Fortran 77, and Ryan-McFarland IBM Professional Fortran.« less

  8. Pathways to Ultra-Efficient Solid-State Lighting (invited)

    Office of Scientific and Technical Information (OSTI)

    Funding: SSLS EFRC, Department of Energy, Office of Basic Energy Sciences Sandia ... Benefits of lasers for SSL Bridging the "green-yellow gap" in LED efficiency A. Materials ...

  9. Natural Gas Vehicle Basics | Department of Energy

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Vehicles & Fuels Vehicles Natural Gas Vehicle Basics Natural Gas Vehicle Basics August 20, 2013 - 9:15am Addthis Photo of a large truck stopped at a gas station that reads ...

  10. Photovoltaic Cell Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cell Basics Photovoltaic Cell Basics August 16, 2013 - 4:53pm Addthis Photovoltaic (PV) cells, or solar cells, take advantage of the photoelectric effect to produce electricity. PV ...

  11. Basic Research Needs for the Hydrogen Economy

    Fuel Cell Technologies Publication and Product Library (EERE)

    The Basic Energy Sciences (BES) Workshop on Hydrogen Production, Storage and Use was held May 13-15, 2003 to assess the basic research needs to assure a secure energy future. This report is based on t

  12. Biomass Basics: The Facts About Bioenergy

    SciTech Connect (OSTI)

    2015-04-01

    Biomass Basics: The Facts About Bioenergy. This document provides general information about bioenergy and its creation and potential uses.

  13. Basic ReseaRch DiRections

    National Nuclear Security Administration (NNSA)

    Basic ReseaRch DiRections for User Science at the National Ignition Facility Report on the National Nuclear Security Administration - Office of Science Workshop on Basic Research Directions on User Science at the National Ignition Facility BASIC RESEARCH DIRECTIONS FOR USER SCIENCE AT THE NATIONAL IGNITION FACILITY Report on the National Nuclear Security Administration (NNSA) - Office of Science (SC) Workshop on Basic Research Directions on User Science at the National Ignition Facility Chairs:

  14. Energy Basics Website Contact | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Basics Website Contact Energy Basics Website Contact Use this form to send us your comments, report problems, and/or ask questions about information on the Energy Basics website. Your Email Message Here * CAPTCHA This question is for testing whether you are a human visitor and to prevent automated spam submissions. Submit

  15. (Energy Efficiency)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... energy efficiency improvements require conditions that enable investment inflow, such as access to capital, stronger markets for energy services and market-based energy pricing. ...

  16. Efficiency Vermont

    Energy.gov [DOE]

    In June 1999, Vermont enacted legislation authorizing the Vermont Public Service Board (PSB) to establish a volumetric charge on all electric customers' bills to support energy efficiency programs....

  17. Energy Efficiency

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency ...

  18. Basic Data Report for Monitor Well AEC-7 Reconfiguration

    SciTech Connect (OSTI)

    Washington Regulatory and Environmental Services

    2005-01-20

    The New Mexico Office of the State Engineer (OSE) permitted well AEC-7 as C-2742. This well has been part of the far-field monitoring network since 1974. The well was used to obtain water level elevations and hydraulic parameters from both the Bell Canyon Formation and the Culebra Member of the Rustler Formation. This basic data report provides a historical account of the well from the original installation to the current configuration.

  19. Basic research needed for the development of geothermal energy

    SciTech Connect (OSTI)

    Aamodt, R.L.; Riecker, R.E.

    1980-10-01

    Basic research needed to facilitate development of geothermal energy is identified. An attempt has been made to make the report representative of the ideas of productive workers in the field. The present state of knowledge of geothermal energy is presented and then specific recommendations for further research, with status and priorities, are listed. Discussion is limited to a small number of applicable concepts, namely: origin of geothermal flux; transport of geothermal energy; geothermal reservoirs; rock-water interactions, and geophysical and geochemical exploration.

  20. Frequency Regulation Basics and Trends

    SciTech Connect (OSTI)

    Kirby, BJ

    2005-05-06

    The electric power system must address two unique requirements: the need to maintain a near real-time balance between generation and load, and the need to adjust generation (or load) to manage power flows through individual transmission facilities. These requirements are not new: vertically integrated utilities have been meeting them for a century as a normal part of conducting business. With restructuring, however, the services needed to meet these requirements, now called ''ancillary services'', are being more clearly defined. Ancillary services are those functions performed by the equipment and people that generate, control, and transmit electricity in support of the basic services of generating capacity, energy supply, and power delivery. The Federal Energy Regulatory Commission (FERC) has defined such services as those ''necessary to support the transmission of electric power from seller to purchaser given the obligations of control areas and transmitting utilities within those control areas to maintain reliable operations of the interconnected transmission system''. This statement recognizes the importance of ancillary services for both bulk-power reliability and support of commercial transactions. Balancing generation and load instantaneously and continuously is difficult because loads and generators are constantly fluctuating. Minute-to-minute load variability results from the random turning on and off of millions of individual loads. Longer-term variability results from predictable factors such as the daily and seasonal load patterns as well as more random events like shifting weather patterns. Generators also introduce unexpected fluctuations because they do not follow their generation schedules exactly and they trip unexpectedly due to a range of equipment failures. The output from wind generators varies with the wind. Storage technologies should be ideal suppliers of several ancillary services, including regulation, contingency reserves (spinning

  1. (Energy Efficiency)

    Energy Savers

    Meeting of the G8 and the aforementioned three countries. 4. Promotion of energy efficiency in both energy supply and demand chains in a cost-effective manner is a ...

  2. NREL Demonstrates Efficient Solar Water Splitting by Metal Oxide Photoabsorber (Fact Sheet), NREL Highlights in Science, NREL (National Renewable Energy Laboratory)

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    New development demonstrates that inexpensive and robust metal oxide photoabsorbers hold great promise as photoanodes for water oxidation. The production of solar fuels (e.g., H 2 from H 2 O, hydrocarbons from CO 2 ) via direct photoelectrochemical reactions is a promising approach in the pursuit of renewable energy sources. Production of O 2 is the only scalable and renewable oxidation that can balance these fuel-forming reduction reactions. However, few materials have the necessary properties

  3. Efficiency Improvements

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    efficiency improvements Efficiency Improvements 3D Printing Can Speed Target Production Producing target components for high-energy laser systems like NIF and the OMEGA laser at the University of Rochester is poised to take a big step forward in speed and flexibility, thanks to recent advances in 3D printing. An additive manufacturing process called two-photon polymerization direct laser writing (2PP DLW) is enabling the fabrication of "on-demand" foam reservoir targets used to test

  4. NREL: Learning - Solar Process Heat Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Water Heating Solar water-heating systems are designed to provide large quantities of hot water for nonresidential ... Solar absorption systems use thermal energy to evaporate a ...

  5. Bio-Benefits Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Education & Workforce Development » Bioenergy Basics » Bio-Benefits Basics Bio-Benefits Basics Biomass is an important commodity for the future of the United States. Increased production and use of biofuels will result in a variety of benefits to the nation, including: Improved national energy security Increased economic growth Broad-based environmental benefits. Biomass and U.S. Energy Security The U.S. economy is heavily dependent on oil imports-containing 4% of the world's population,

  6. Air-Conditioning Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Conditioning Basics Air-Conditioning Basics August 16, 2013 - 1:59pm Addthis Air conditioning is one of the most common ways to cool homes and buildings. How Air Conditioners Work Air conditioners employ the same operating principles and basic components as refrigerators. Refrigerators use energy (usually electricity) to transfer heat from the cool interior of the refrigerator to the relatively warm surroundings; likewise, an air conditioner uses energy to transfer heat from the interior space

  7. Wind Energy Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Information Resources » Wind Energy Basics Wind Energy Basics Wind Energy Basics Once called windmills, the technology used to harness the power of wind has advanced significantly over the past ten years, with the United States increasing its wind power capacity 30% year over year. Wind turbines, as they are now called, collect and convert the kinetic energy that wind produces into electricity to help power the grid. Wind energy is actually a byproduct of the sun. The sun's uneven heating of

  8. Photovoltaic Silicon Cell Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... More Information Learn more about these solar cell materials: Polycrystalline Thin Films Single-Crystalline Thin Films Addthis Related Articles Photovoltaic Cell Material Basics ...

  9. NREL: Concentrating Solar Power Research - Technology Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Technology Basics Concentrating solar power (CSP) technologies can be a major contributor to our nation's future need for new, clean sources of energy, particularly in the Western...

  10. Basic Plasma Science | Princeton Plasma Physics Lab

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Basic Plasma Science Key Laboratory projects include the study of Hall thrusters that ... the physics of Hall thrusters and related systems that expel plasma as a propellant. ...

  11. National Laboratory] Basic Biological Sciences(59) Biological...

    Office of Scientific and Technical Information (OSTI)

    Achievements of structural genomics Terwilliger, Thomas C. Los Alamos National Laboratory Basic Biological Sciences(59) Biological Science Biological Science Abstract Not...

  12. Electric-Drive Vehicle Basics (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-04-01

    Describes the basics of electric-drive vehicles, including hybrid electric vehicles, plug-in hybrid electric vehicles, all-electric vehicles, and the various charging options.

  13. APS- Multifamily Energy Efficiency Program

    Energy.gov [DOE]

    In order to meet Arizona's 22% energy reduction by 2020 goal, APS offers energy efficiency incentives to multifamily building residents. CFLs, thermostat shut-offs and water controls are offered...

  14. Liquefied Natural Gas: Understanding the Basic Facts | Department...

    Office of Environmental Management (EM)

    Liquefied Natural Gas: Understanding the Basic Facts Liquefied Natural Gas: Understanding the Basic Facts Liquefied Natural Gas: Understanding the Basic Facts (3.38 MB) More ...

  15. Webinar: BioenergizeME Office Hours Webinar: Biomass Basics ...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biomass Basics Webinar: BioenergizeME Office Hours Webinar: Biomass Basics Webinar: BioenergizeME Office Hours Webinar: Biomass Basics biomasbasicswebinar20150827.pdf (3.05 MB) ...

  16. Review - basic research needs in fluid mechanics

    SciTech Connect (OSTI)

    Jones, O.C. Jr.; Kreith, F.; White, F.M.

    1981-12-01

    A small segment of the engineering community was surveyed to obtain their judgement regarding the long-range needs for basic research in fluid mechanics. It is the purpose of this paper to provide a summary of a more detailed report, which identifies basic research needed in fluid mechanics. 12 refs.

  17. Fuel cell electrolyte membrane with basic polymer

    DOE Patents [OSTI]

    Larson, James M.; Pham, Phat T.; Frey, Matthew H.; Hamrock, Steven J.; Haugen, Gregory M.; Lamanna, William M.

    2010-11-23

    The present invention is an electrolyte membrane comprising an acid and a basic polymer, where the acid is a low-volatile acid that is fluorinated and is either oligomeric or non-polymeric, and where the basic polymer is protonated by the acid and is stable to hydrolysis.

  18. Fuel cell electrolyte membrane with basic polymer

    DOE Patents [OSTI]

    Larson, James M.; Pham, Phat T.; Frey, Matthew H.; Hamrock, Steven J.; Haugen, Gregory M.; Lamanna, William M.

    2012-12-04

    The present invention is an electrolyte membrane comprising an acid and a basic polymer, where the acid is a low-volatile acid that is fluorinated and is either oligomeric or non-polymeric, and where the basic polymer is protonated by the acid and is stable to hydrolysis.

  19. Energy and Water Data Portal

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  20. Water Availability, Cost, and Use

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 ... Geochemistry Geoscience SubTER Carbon Sequestration Program Leadership EnergyWater Nexus ...

  1. Sandia Energy - Conventional Water Power: Market Acceleration

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Market Acceleration Home Stationary Power Energy Conversion Efficiency Water Power Conventional Water Power: Market Acceleration Conventional Water Power: Market AccelerationTara...

  2. A new approach to water desalination

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    new approach to water desalination A new approach to water desalination Graphene sheets with precisely controlled pores have potential to purify water more efficiently than ...

  3. Storage Water Heaters | Department of Energy

    Energy Savers

    Storage Water Heaters Storage Water Heaters Consider energy efficiency when selecting a conventional storage water heater to avoid paying more over its lifetime. | Photo courtesy ...

  4. Delta-Montrose Electric Association- Residential Energy Efficiency Rebate Program

    Energy.gov [DOE]

    Delta-Montrose Electric Association (DMEA) offers a variety of rebates for customers who buy energy efficient appliances and equipment. Rebates are available for energy efficient electric water...

  5. Energy Efficiency for the Nunamiut People of Anaktuvuk Pass,...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Based 70 Tribes and First Nations Directive - Clean Water Needs Clean Energy Efficiency is the Priority RE and Energy Efficiency Trainings Nunamiut People- ...

  6. Residential Energy Efficiency Tax Credit | Department of Energy

    Office of Environmental Management (EM)

    Energy Efficiency Tax Credit Residential Energy Efficiency Tax Credit < Back Eligibility Residential Savings Category Water Heaters Furnaces Boilers Heat Pumps Air conditioners ...

  7. High-Efficiency Solar Thermochemical Reactor for Hydrogen Production

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Efficiency Solar Thermochemical Reactor for Hydrogen Production - Sandia Energy Energy ... Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ...

  8. The Path to Sustainable Nuclear Energy. Basic and Applied Research Opportunities for Advanced Fuel Cycles

    SciTech Connect (OSTI)

    Finck, P.; Edelstein, N.; Allen, T.; Burns, C.; Chadwick, M.; Corradini, M.; Dixon, D.; Goff, M.; Laidler, J.; McCarthy, K.; Moyer, B.; Nash, K.; Navrotsky, A.; Oblozinsky, P.; Pasamehmetoglu, K.; Peterson, P.; Sackett, J.; Sickafus, K. E.; Tulenko, J.; Weber, W.; Morss, L.; Henry, G.

    2005-09-01

    The objective of this report is to identify new basic science that will be the foundation for advances in nuclear fuel-cycle technology in the near term, and for changing the nature of fuel cycles and of the nuclear energy industry in the long term. The goals are to enhance the development of nuclear energy, to maximize energy production in nuclear reactor parks, and to minimize radioactive wastes, other environmental impacts, and proliferation risks. The limitations of the once-through fuel cycle can be overcome by adopting a closed fuel cycle, in which the irradiated fuel is reprocessed and its components are separated into streams that are recycled into a reactor or disposed of in appropriate waste forms. The recycled fuel is irradiated in a reactor, where certain constituents are partially transmuted into heavier isotopes via neutron capture or into lighter isotopes via fission. Fast reactors are required to complete the transmutation of long-lived isotopes. Closed fuel cycles are encompassed by the Department of Energy?s Advanced Fuel Cycle Initiative (AFCI), to which basic scientific research can contribute. Two nuclear reactor system architectures can meet the AFCI objectives: a ?single-tier? system or a ?dual-tier? system. Both begin with light water reactors and incorporate fast reactors. The ?dual-tier? systems transmute some plutonium and neptunium in light water reactors and all remaining transuranic elements (TRUs) in a closed-cycle fast reactor. Basic science initiatives are needed in two broad areas: ? Near-term impacts that can enhance the development of either ?single-tier? or ?dual-tier? AFCI systems, primarily within the next 20 years, through basic research. Examples: Dissolution of spent fuel, separations of elements for TRU recycling and transmutation Design, synthesis, and testing of inert matrix nuclear fuels and non-oxide fuels Invention and development of accurate on-line monitoring systems for chemical and nuclear species in the nuclear

  9. Efficient Technologies and Products for Federal Facilities |...

    Energy.gov (indexed) [DOE]

    Find products and technologies covered by a specific efficiency program. ENERGY STAR EPEAT FEMP Designated FEMP Low Standby Power FEMP Promising Technologies WaterSense Advanced ...

  10. Piedmont Natural Gas- Commercial Equipment Efficiency Program

    Energy.gov [DOE]

    Piedmont Natural Gas offers rebates to commercial customers for purchasing and installing high-efficiency natural gas tankless water heaters. Customers on the 202-Small General Service Standard...

  11. Cuivre River Electric- Energy Efficiency Rebate Programs

    Energy.gov [DOE]

    Cuivre River Electric Cooperative, through the Take Control & Save program, offers rebates for cooperative members who purchase efficient geothermal and dual fuel heat pumps, and electric water...

  12. EWEB- Residential Energy Efficiency Rebate Programs

    Energy.gov [DOE]

    Eugene Water and Electric Board (EWEB) provides cash incentives to help residential customers increase the energy efficiency of homes through several different rebate programs. Rebates are provided...

  13. Questar Gas- Commercial Energy Efficiency Rebate Program

    Energy.gov [DOE]

    Questar Gas provides rebates to its business customers for installing energy efficient food service equipment, laundry equipment, HVAC and water heating equipment, and certain weatherization...

  14. Washington Gas- Commercial Efficiency Rebate Program

    Energy.gov [DOE]

    Washington Gas offers rebates to commercial customers for the purchase and installation of energy efficient equipment. Rebates for available for water heating, space heating, boilers, and for...

  15. "Nanoengineered Surfaces for Efficiency Enhancements in Energy...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    in various energy, water, and transportation systems including oil & gas (flow assurance and energy efficiency), aircraft, turbines, engines, power and desalination plants, and ...

  16. NSTAR (Gas) - Commercial Energy Efficiency Programs | Department...

    Energy.gov (indexed) [DOE]

    in existing facilities. Rebates are for high efficiency gas space heating equipment, water heating equipment, infrared heating equipment, and commercial cooking equipment. All...

  17. Piedmont Natural Gas- Residential Equipment Efficiency Program

    Energy.gov [DOE]

    Piedmont Natural Gas offers rebates on high-efficiency natural gas tankless water heaters, tank water heaters and furnaces. Customers on the 201-Residential Service Rate or 221-Residential Service...

  18. Piedmont Natural Gas- Residential Equipment Efficiency Program

    Energy.gov [DOE]

    Piedmont Natural Gas offers rebates on high-efficiency natural gas tankless water heaters, tank water heaters and furnaces. Customers on the 101-Residential Service rate are eligible for these...

  19. Basic devices and techniques for supervisory control and telemetery systems

    SciTech Connect (OSTI)

    Knox, R.M.

    1984-04-01

    The microprocessor is creating extraordinary changes in the basic devices used for supervisory control and telemetry systems. Devices which incorporate microprocessors are providing new capabilities to monitor, to control, and to transmit data. These new capabilities provide the opportunity to utilize new techniques in achieving more efficient operation and control of gas transmission and distribution systems. This paper describes several devices being installed at Transcocontinental Gas Pipe Line Corporation and their impact on the planned techniques to be used to collect gas flow data and to implement supervisory control.

  20. Energy- and Water-Efficient Product Efficiency Programs | Department...

    Energy.gov (indexed) [DOE]

    the U.S. Environmental Protection Agency (EPA) established four programs that specify ... This joint U.S. Department of Energy and EPA program helps buyers save money and protect ...

  1. Carderock 3-ft Variable Pressure Cavitation Water Tunnel | Open...

    Open Energy Information (Open El) [EERE & EIA]

    3-ft Variable Pressure Cavitation Water Tunnel Jump to: navigation, search Basic Specifications Facility Name Carderock 3-ft Variable Pressure Cavitation Water Tunnel Overseeing...

  2. Central Hudson Gas & Electric (Gas)- Commercial Energy Efficiency Program

    Energy.gov [DOE]

    The program offers rebates on furnaces, water boilers, steam boilers, boiler reset controls, indirect water heaters, and programmable thermostats. Some incentives vary based upon the efficiency of...

  3. Purchasing Energy-Efficient Residential Whole-Home Gas Tankless...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Whole-Home Gas Tankless Water Heaters Purchasing Energy-Efficient Residential Whole-Home Gas Tankless Water Heaters The Federal Energy Management Program (FEMP) provides ...

  4. Advanced, Energy-Efficient Hybrid Membrane System for Industrial...

    Energy.gov (indexed) [DOE]

    Advanced, Energy- Efficient Hybrid Membrane System for Industrial Water Reuse New Hybrid Membrane System Utilizes Industrial Waste Heat to Power Water Purification Process As...

  5. Chapter 5. Basic Concepts for Clean Energy Unsecured Lending and Loan Loss

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Reserve Funds | Department of Energy Chapter 5. Basic Concepts for Clean Energy Unsecured Lending and Loan Loss Reserve Funds Chapter 5. Basic Concepts for Clean Energy Unsecured Lending and Loan Loss Reserve Funds When grantees involve third-party commercial lenders in clean energy (energy efficiency and renwable energy or EE/RE) finance programs, they have the opportunity to leverage public funds including American Recovery and Reinvestment Act of 2009 (ARRA) funds by as much as 10 to 20

  6. Innovative solar thermochemical water splitting.

    SciTech Connect (OSTI)

    Hogan, Roy E. Jr.; Siegel, Nathan P.; Evans, Lindsey R.; Moss, Timothy A.; Stuecker, John Nicholas; Diver, Richard B., Jr.; Miller, James Edward; Allendorf, Mark D.; James, Darryl L.

    2008-02-01

    Sandia National Laboratories (SNL) is evaluating the potential of an innovative approach for splitting water into hydrogen and oxygen using two-step thermochemical cycles. Thermochemical cycles are heat engines that utilize high-temperature heat to produce chemical work. Like their mechanical work-producing counterparts, their efficiency depends on operating temperature and on the irreversibility of their internal processes. With this in mind, we have invented innovative design concepts for two-step solar-driven thermochemical heat engines based on iron oxide and iron oxide mixed with other metal oxides (ferrites). The design concepts utilize two sets of moving beds of ferrite reactant material in close proximity and moving in opposite directions to overcome a major impediment to achieving high efficiency--thermal recuperation between solids in efficient counter-current arrangements. They also provide inherent separation of the product hydrogen and oxygen and are an excellent match with high-concentration solar flux. However, they also impose unique requirements on the ferrite reactants and materials of construction as well as an understanding of the chemical and cycle thermodynamics. In this report the Counter-Rotating-Ring Receiver/Reactor/Recuperator (CR5) solar thermochemical heat engine and its basic operating principals are described. Preliminary thermal efficiency estimates are presented and discussed. Our ferrite reactant material development activities, thermodynamic studies, test results, and prototype hardware development are also presented.

  7. Basic Research Needs for Countering Terrorism

    SciTech Connect (OSTI)

    Stevens, W.; Michalske, T.; Trewhella, J.; Makowski, L.; Swanson, B.; Colson, S.; Hazen, T.; Roberto, F.; Franz, D.; Resnick, G.; Jacobson, S.; Valdez, J.; Gourley, P.; Tadros, M.; Sigman, M.; Sailor, M.; Ramsey, M.; Smith, B.; Shea, K.; Hrbek, J.; Rodacy, P.; Tevault, D.; Edelstein, N.; Beitz, J.; Burns, C.; Choppin, G.; Clark, S.; Dietz, M.; Rogers, R.; Traina, S.; Baldwin, D.; Thurnauer, M.; Hall, G.; Newman, L.; Miller, D.; Kung, H.; Parkin, D.; Shuh, D.; Shaw, H.; Terminello, L.; Meisel, D.; Blake, D.; Buchanan, M.; Roberto, J.; Colson, S.; Carling, R.; Samara, G.; Sasaki, D.; Pianetta, P.; Faison, B.; Thomassen, D.; Fryberger, T.; Kiernan, G.; Kreisler, M.; Morgan, L.; Hicks, J.; Dehmer, J.; Kerr, L.; Smith, B.; Mays, J.; Clark, S.

    2002-03-01

    To identify connections between technology needs for countering terrorism and underlying science issues and to recommend investment strategies to increase the impact of basic research on efforts to counter terrorism.

  8. Photovoltaics: Basic Design Principles and Components

    SciTech Connect (OSTI)

    1997-03-01

    This publication will introduce you to the basic design principles and components of PV systems. It will also help you discuss these systems knowledgeably with an equipment supplier or system installer.

  9. Concentrator Photovoltaic System Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Concentrator Photovoltaic System Basics August 20, 2013 - 4:12pm Addthis Concentrator photovoltaic (PV) systems use less solar cell material than other PV systems. PV cells are the ...

  10. Wind Turbine Basics | Department of Energy

    Energy.gov (indexed) [DOE]

    This video explains the basics of how wind turbines operate to produce clean power from an abundant, renewable resource-the wind. Text Version Wind turbine assembly Although all ...

  11. Solar Photovoltaic Technology Basics | Department of Energy

    Energy.gov (indexed) [DOE]

    U.S. Department of Energy. Harnessing Solar Energy at Home Loan Guarantees for Three California PV Solar Plants Expected to Create 1,400 Jobs Solar Photovoltaic Cell Basics

  12. NREL: Learning - Fuel Cell Vehicle Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Fuel Cell Vehicle Basics Photo showing a silver four-door sedan being driven on a roadway and containing the words "hydrogen fuel cell electric" across the front and rear doors. ...

  13. FTA Basic Event & Cut Set Ranking.

    Energy Science and Technology Software Center (OSTI)

    1999-05-04

    Version 00 IMPORTANCE computes various measures of probabilistic importance of basic events and minimal cut sets to a fault tree or reliability network diagram. The minimal cut sets, the failure rates and the fault duration times (i.e., the repair times) of all basic events contained in the minimal cut sets are supplied as input data. The failure and repair distributions are assumed to be exponential. IMPORTANCE, a quantitative evaluation code, then determines the probability ofmore » the top event and computes the importance of minimal cut sets and basic events by a numerical ranking. Two measures are computed. The first describes system behavior at one point in time; the second describes sequences of failures that cause the system to fail in time. All measures are computed assuming statistical independence of basic events. In addition, system unavailability and expected number of system failures are computed by the code.« less

  14. Alternative Fuels Data Center: Propane Basics

    Alternative Fuels and Advanced Vehicles Data Center

    It presents no threat to soil, surface water, or groundwater. Propane is produced as a ... fuel. Its main uses include home and water heating, cooking and refrigerating food, ...

  15. Lesson 1 - Energy Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    1 - Energy Basics Lesson 1 - Energy Basics This lesson covers the states and forms of energy, where energy comes from, as well as how the way we live is tied to our energy supply and what that means for the future. Specific topics include: States of energy Potential Kinetic Forms of energy Energy sources Primary and secondary sources Renewable and nonrenewable Conversion Conservation Environmental impacts Greenhouse effect Future sources Lesson 1 - Energy.pptx (8.84 MB) More Documents &

  16. Solar Photovoltaic Cell Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Cell Basics Solar Photovoltaic Cell Basics August 16, 2013 - 4:53pm Addthis When light shines on a photovoltaic (PV) cell, it may be reflected, absorbed, or pass right through it. The PV cell is composed of semiconductor material, which combines some properties of metals and some properties of insulators. That makes it uniquely capable of converting light into electricity. When light is absorbed by a semiconductor, photons of light can transfer their energy to electrons, allowing the electrons

  17. Biodiesel Fuel Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biodiesel Fuel Basics Biodiesel Fuel Basics July 30, 2013 - 2:43pm Addthis Biodiesel is a domestically produced, renewable fuel that can be manufactured from vegetable oils, animal fats, or recycled restaurant greases. What Is Biodiesel? Biodiesel is a liquid fuel produced from renewable sources such as new and used vegetable oils and animal fats and is a cleaner-burning replacement for petroleum-based diesel fuel. It is nontoxic and biodegradable. Like petroleum-derived diesel, biodiesel is

  18. Biomass Resource Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biomass Resource Basics Biomass Resource Basics August 14, 2013 - 1:22pm Addthis Biomass resources that are used directly as a fuel, or converted to another form or energy product that are available on a renewable basis are commonly referred to as feedstocks. Biomass Feedstocks Biomass feedstocks include dedicated energy crops, agricultural crops, forestry residues, algae, biomass processing residues, municipal waste, and animal waste. Dedicated Energy Crops Dedicated energy crops are non-food

  19. Anaerobic Digestion Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Anaerobic Digestion Basics Anaerobic Digestion Basics August 14, 2013 - 1:07pm Addthis Disposal and treatment of organic waste represents a major challenge for the waste industry. Anaerobic digestion is an alternative to composting for a wide range of organic substances including livestock manure, municipal wastewater solids, food waste, industrial wastewater and residuals, fats, oils and grease, and other organic waste streams. Diverting organic waste to facilities that contain anaerobic

  20. Cooling System Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Space Heating & Cooling » Cooling System Basics Cooling System Basics August 16, 2013 - 1:08pm Addthis Cooling technologies used in homes and buildings include ventilation, evaporative cooling, air conditioning, absorption cooling, and radiant cooling. Learn more about how these technologies work. Ventilation Ventilation allows air to move into and out of homes and buildings either by natural or mechanical means. Evaporative Cooling In dry climates, evaporative cooling or "swamp

  1. Electricity Fuel Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Fuels » Electricity Fuel Basics Electricity Fuel Basics August 19, 2013 - 5:44pm Addthis Electricity used to power vehicles is generally provided by the electricity grid and stored in the vehicle's batteries. Vehicles that run on electricity have no tailpipe emissions. Emissions that can be attributed to electric vehicles are generated during electricity production at the power plant. Charging plug-in electric vehicles at home is as simple as plugging them into an electric outlet. Electric

  2. Hydrogen Fuel Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vehicles & Fuels » Fuels » Hydrogen Fuel Basics Hydrogen Fuel Basics August 19, 2013 - 5:45pm Addthis Hydrogen (H2) is a potentially emissions-free alternative fuel that can be produced from domestic resources. Although not widely used today as a transportation fuel, government and industry research and development are working toward the goal of clean, economical, and safe hydrogen production and hydrogen-powered fuel cell vehicles. Hydrogen is the simplest and most abundant element in the

  3. Biofuel Conversion Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Biofuel Conversion Basics Biofuel Conversion Basics August 14, 2013 - 12:31pm Addthis The conversion of biomass solids into liquid or gaseous biofuels is a complex process. Today, the most common conversion processes are biochemical- and thermochemical-based. However, researchers are also exploring photobiological conversion processes. Biochemical Conversion Processes In biochemical conversion processes, enzymes and microorganisms are used as biocatalysts to convert biomass or biomass-derived

  4. NREL: Hydrogen and Fuel Cells Research - Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Hydrogen and Fuel Cell Basics Photo of vehicle filling up at renewable hydrogen fueling station. NREL's hydrogen fueling station dispenses hydrogen produced via renewable electrolysis. Photo by Dennis Schroeder, NREL NREL researchers are working to unlock the potential of hydrogen as a fuel and to advance fuel cell technologies for automobiles, equipment, and buildings. View the Hydrogen Program video on NREL's YouTube channel to learn more about the basics of NREL's hydrogen and fuel cell

  5. Basic Operating Mode | Materials Science | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Basic Operating Mode Pair of energy dispersive microscopy images of a copper indium diselenide thin film, showing elemental maps of copper (left) and indium (right). CuInSe2 thin film. Cu and In elemental maps obtained by EDS. In its basic operating mode, scanning electron microscopy senses secondary electrons and X-rays emitted from the sample. The former provides very high-resolution topography, and the latter indicates elemental composition. Secondary electrons, with energies in the range of

  6. Ventilation System Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Ventilation System Basics Ventilation System Basics August 16, 2013 - 1:33pm Addthis Ventilation is the process of moving air into and out of an interior space by natural or mechanical means. Ventilation is necessary for the health and comfort of occupants of all buildings. Ventilation supplies air for occupants to breathe and removes moisture, odors, and indoor pollutants like carbon dioxide. Too little ventilation may result in poor indoor air quality, while too much may cause unnecessarily

  7. Anti-reflective nanoporous silicon for efficient hydrogen production

    DOE Patents [OSTI]

    Oh, Jihun; Branz, Howard M

    2014-05-20

    Exemplary embodiments are disclosed of anti-reflective nanoporous silicon for efficient hydrogen production by photoelectrolysis of water. A nanoporous black Si is disclosed as an efficient photocathode for H.sub.2 production from water splitting half-reaction.

  8. Sandia Energy - Water Security

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas...

  9. Energy Efficiency

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    the Deployment of Energy Efficiency & Renewable Energy Technologies in South Africa A Summary of the Trust for Conservation Global Cool Cities Alliance Project In 2010, the Deputy Secretary of the U.S. Department of Energy and the Energy Minister of the Republic of South Africa (RSA) launched the U.S. - RSA Energy Dialogue to facilitate coopera- tion in a number of areas, including energy effciency and renew- able energy. In support of the U.S. - RSA Energy Dialogue, the U.S. Department of

  10. ESMAP-Energy Efficiency Case Studies | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Energy, Water Focus Area: Energy Efficiency, Buildings, Transportation Resource Type: Lessons learnedbest practices, Case studiesexamples Website: www.esmap.orgesmapnode...

  11. Environmental and societal consequences of a possible CO/sub 2/-induced climate change. Volume II, Part 8. Impacts of rising atmospheric carbon dioxide levels on agricultural growing seasons and crop water use efficiencies

    SciTech Connect (OSTI)

    Newman, J. E.

    1982-09-01

    The researchable areas addressed relate to the possible impacts of climate change on agricultural growing seasons and crop adaptation responses on a global basis. The research activities proposed are divided into the following two main areas of investigation: anticipated climate change impacts on the physical environmental characteristics of the agricultural growing seasons and, the most probable food crop responses to the possible changes in atmospheric CO/sub 2/ levels in plant environments. The main physical environmental impacts considered are the changes in temperature, or more directly, thermal energy levels and the growing season evapotranspiration-precipitation balances. The resulting food crop, commercial forest and rangeland species response impacts addressed relate to potential geographical shifts in agricultural growing seasons as determined by the length in days of the frost free period, thermal energy changes and water balance changes. In addition, the interaction of possible changes in plant water use efficiencies during the growing season in relationship to changing atmospheric CO/sub 2/ concentrations, is also considered under the scenario of global warming due to increases in atmospheric CO/sub 2/ concentration. These proposed research investigations are followed by adaptive response evaluations.

  12. Recombinant transfer in the basic genome of E. coli

    DOE PAGES-Beta [OSTI]

    Dixit, Purushottam; Studier, F. William; Pang, Tin Yau; Maslov, Sergei

    2015-07-07

    An approximation to the ~4-Mbp basic genome shared by 32 strains of E. coli representing six evolutionary groups has been derived and analyzed computationally. A multiple-alignment of the 32 complete genome sequences was filtered to remove mobile elements and identify the most reliable ~90% of the aligned length of each of the resulting 496 basic-genome pairs. Patterns of single bp mutations (SNPs) in aligned pairs distinguish clonally inherited regions from regions where either genome has acquired DNA fragments from diverged genomes by homologous recombination since their last common ancestor. Such recombinant transfer is pervasive across the basic genome, mostly betweenmoregenomes in the same evolutionary group, and generates many unique mosaic patterns. The six least-diverged genome-pairs have one or two recombinant transfers of length ~40115 kbp (and few if any other transfers), each containing one or more gene clusters known to confer strong selective advantage in some environments. Moderately diverged genome pairs (0.41% SNPs) show mosaic patterns of interspersed clonal and recombinant regions of varying lengths throughout the basic genome, whereas more highly diverged pairs within an evolutionary group or pairs between evolutionary groups having >1.3% SNPs have few clonal matches longer than a few kbp. Many recombinant transfers appear to incorporate fragments of the entering DNA produced by restriction systems of the recipient cell. A simple computational model can closely fit the data. As a result, most recombinant transfers seem likely to be due to generalized transduction by co-evolving populations of phages, which could efficiently distribute variability throughout bacterial genomes.less

  13. Alternative Fuels Data Center: Natural Gas Fuel Basics

    Alternative Fuels and Advanced Vehicles Data Center

    Fuel Basics to someone by E-mail Share Alternative Fuels Data Center: Natural Gas Fuel Basics on Facebook Tweet about Alternative Fuels Data Center: Natural Gas Fuel Basics on Twitter Bookmark Alternative Fuels Data Center: Natural Gas Fuel Basics on Google Bookmark Alternative Fuels Data Center: Natural Gas Fuel Basics on Delicious Rank Alternative Fuels Data Center: Natural Gas Fuel Basics on Digg Find More places to share Alternative Fuels Data Center: Natural Gas Fuel Basics on

  14. Definition of Energy Efficiency

    U.S. Energy Information Administration (EIA) (indexed site)

    Energy Users Energy Efficiency Page Energy Efficiency Definition Energy Efficiency: Definition Stairs) "Take the Stairs--Be More Energy Efficient" Person A interprets the sign as...

  15. Peer review, basic research, and engineering: Defining a role for QA professionals in basic research environments

    SciTech Connect (OSTI)

    Bodnarczuk, M.

    1989-02-01

    Within the context of doing basic research, this paper seeks to answer four major questions: (1) What is the authority structure of science. (2) What is peer review. (3) Where is the interface between basic physics research and standard engineering. and (4) Given the conclusions to the first three questions, what is the role of the QA professional in a basic research environment like Fermilab. 23 refs.

  16. Selecting a new water heater

    SciTech Connect (OSTI)

    1995-03-01

    This fact sheet describes the types of water heaters available (storage water heaters, demand water heaters, heat pump water heaters, tankless coil and indirect water heaters, and solar water heaters). The criteria for selection are discussed. These are capacity, efficiency rating, and cost. A resource list is provided for further information.

  17. Interior Lighting Efficiency for Municipalities | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Interior Lighting Efficiency for Municipalities Interior Lighting Efficiency for Municipalities This webinar covered a basic understanding of lighting, different types of lamps and luminaries, importance of energy efficiency in lighting, and knowledge of where to find financial resources. Presentation (3.14 MB) Transcript (95 KB) More Documents & Publications interiorlightingefficiencyformunicipalities.doc Exterior Solid-State Lighting Solutions for Municipalities States & Emerging

  18. Promising Technology: Condensing Gas Water Heaters

    Energy.gov [DOE]

    Condensing water heaters achieve higher efficiencies than conventional water heaters by capturing the latent heat from water vapor contained in the flue gases. Combustion gases are exhausted through a secondary heat exchanger where the latent heat of water vapor in the exhaust gas is transferred to the stored water. This technology enables the water heater to achieve thermal efficiencies up to 99%.

  19. Basic Data Report for Drillhole SNL-2 (C-2948)

    SciTech Connect (OSTI)

    Dennis W. Powers; Washington Regultory and Environmental Services

    2005-01-19

    SNL-2 was drilled in the northwest quarter of Section 12, T22S, R30E, in eastern Eddy County, New Mexico (Figure 2-1). It is located 574 ft from the north line (fnl) and 859 ft from the west line (fwl) of the section (Figure 2-2). This location places the drillhole east of the Livingston Ridge escarpment among oil wells of the Cabin Lake field. SNL-2 will be used to test hydraulic properties and to monitor ground water levels of the Culebra Dolomite Member of the Permian Rustler Formation. SNL-2 was permitted by the New Mexico State Engineer as C-2948. [Official correspondence regarding permitting and regulatory information must reference this permit number.] In the plan describing the integrated groundwater hydrology program (Sandia National Laboratories, 2003), SNL-2 is also codesignated WTS-1 because the location also satisfies needs for long-term monitoring of water quality and movement in the Culebra Dolomite for RCRA permitting; this program is under the management of Washington TRU Solutions LLC (WTS). In the event that additional wells are established on the SNL-2 drillpad to monitor other hydrological units (e.g., the Magenta Dolomite Member of the Permian Rustler Formation), the current drillhole will likely be referred to as SNL-2C because it is completed in the Culebra. Most drillholes at WIPP have been described after completion to provide an account of the geology, hydrology, or other basic data acquired during drilling and immediate completion of the drillhole. In addition, the basic data report provides an account of the drilling procedures and activities that may be helpful to later interpretations of data or for further work in the drillhole, including test activities and eventual plugging and abandoning activities. The basic data report also provides a convenient means of reporting information about administrative activities necessary to drill the hole.

  20. Lesson 2 - Electricity Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2 - Electricity Basics Lesson 2 - Electricity Basics It's difficult to imagine life without convenient electricity. You just flip a switch or plug in an appliance, and it's there. But how did it get there? Many steps go into providing the reliable electricity we take for granted. This lesson takes a closer look at electricity. It follows the path of electricity from the fuel source to the home, including the power plant and the electric power grid. It also covers the role of electric utilities

  1. Incandescent Lighting Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Incandescent Lighting Basics Incandescent Lighting Basics August 16, 2013 - 10:00am Addthis Incandescent lamps consist of a wire filament inside a glass bulb that is usually filled with inert gas, and they produce light when an electric current heats the filament to a high temperature. Incandescent lamps have a low efficacy (10-17 lumens per watt) compared with other lighting options-because most of the energy released is in the form of heat rather than light-and a short average operating life

  2. Criticality safety basics, a study guide

    SciTech Connect (OSTI)

    V. L. Putman

    1999-09-01

    This document is a self-study and classroom guide, for criticality safety of activities with fissile materials outside nuclear reactors. This guide provides a basic overview of criticality safety and criticality accident prevention methods divided into three parts: theory, application, and history. Except for topic emphasis, theory and history information is general, while application information is specific to the Idaho National Engineering and Environmental Laboratory (INEEL). Information presented here should be useful to personnel who must know criticality safety basics to perform their assignments safely or to design critically safe equipment or operations. However, the guide's primary target audience is fissile material handler candidates.

  3. Tidal Energy Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy » Ocean » Tidal Energy Basics Tidal Energy Basics August 16, 2013 - 4:26pm Addthis Photo of the ocean rising along the beach. Some of the oldest ocean energy technologies use tidal power. All coastal areas experience two high tides and two low tides over a period of slightly more than 24 hours. For those tidal differences to be harnessed into electricity, the difference between high and low tides must be more than 16 feet (or at least 5 meters). However, there are only about

  4. Wave Energy Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Ocean » Wave Energy Basics Wave Energy Basics August 16, 2013 - 4:30pm Addthis Photo of a large wave. Wave energy technologies extract energy directly from surface waves or from pressure fluctuations below the surface. Renewable energy analysts believe there is enough energy in ocean waves to provide up to 2 terawatts of electricity. (A terawatt is equal to a trillion watts.) However, wave energy cannot be harnessed everywhere. Wave power-rich areas of the world include the western coasts of

  5. Flexible Fuel Vehicle Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vehicles » Flexible Fuel Vehicle Basics Flexible Fuel Vehicle Basics August 20, 2013 - 9:05am Addthis Photo of a gray van with 'E85 Ethanol' written on the side. Flexible fuel vehicles (FFVs) have an internal combustion engine and are capable of operating on gasoline, E85 (a high-level blend of gasoline and ethanol), or a mixture of both. There are more than 10.6 million flexible fuel vehicles on U.S. roads today. However, many flexible fuel vehicle owners don't realize their car is an FFV and

  6. Fuel Cell Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy » Hydrogen & Fuel Cells » Fuel Cell Basics Fuel Cell Basics August 14, 2013 - 2:09pm Addthis Text Version Photo of two hydrogen fuel cells. Fuel cells can provide heat and electricity for buildings and electrical power for vehicles and electronic devices. HOW FUEL CELLS WORK Fuel cells work like batteries, but they do not run down or need recharging. They produce electricity and heat as long as fuel is supplied. A fuel cell consists of two electrodes-a negative electrode

  7. Geothermal Heat Pump Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Geothermal Heat Pump Basics Geothermal Heat Pump Basics August 19, 2013 - 11:12am Addthis Text Version Geothermal heat pumps use the constant temperature of the earth as an exchange medium for heat. Although many parts of the country experience seasonal temperature extremes-from scorching heat in the summer to sub-zero cold in the winter-the ground a few feet below the earth's surface remains at a relatively constant temperature. Depending on the latitude, ground temperatures range from 45°F

  8. Heat Pump System Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Space Heating & Cooling » Heat Pump System Basics Heat Pump System Basics August 19, 2013 - 11:02am Addthis Like a refrigerator, heat pumps use electricity to move heat from a cool space into a warm space, making the cool space cooler and the warm space warmer. Because they move heat rather than generate heat, heat pumps can provide up to four times the amount of energy they consume. Air-Source Heat Pump Transfers heat between the inside of a building and the outside air. Ductless

  9. Biomass Technology Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy » Biomass Technology Basics Biomass Technology Basics August 14, 2013 - 11:31am Addthis Photo of a pair of hands holding corn stover, the unused parts of harvested corn. Humans have used biomass for thousands of years. Biomass is any organic material that has stored sunlight in the form of chemical energy. Wood is a well-known example of biomass: it can be burned for heat or shaped into building materials. There are many additional types of biomass that can be used to derive

  10. Ethanol Fuel Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Ethanol Fuel Basics Ethanol Fuel Basics July 30, 2013 - 12:00pm Addthis biomass in beekers Ethanol is a renewable fuel that can be made from various plant materials, collectively known as "biomass." Studies have estimated that ethanol and other biofuels could replace 30% or more of U.S. gasoline demand by 2030. More than 95% of U.S. gasoline contains ethanol in a low-level blend to oxygenate the fuel and reduce air pollution. Ethanol is also increasingly available in a high-level blend

  11. Solar Energy Technology Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy » Solar Energy Technology Basics Solar Energy Technology Basics August 16, 2013 - 4:37pm Addthis Did you know that the amount of sunlight that strikes the earth's surface in an hour and a half is enough to handle the entire world's energy consumption for a full year? Solar energy has amazing potential to power our daily lives thanks to constantly-improving technologies. Solar energy systems come in all shapes and sizes. Residential systems are found on rooftops across the

  12. VIDEO: TM-30 BASICS | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    VIDEO: TM-30 BASICS VIDEO: TM-30 BASICS TM-30 is a new method for evaluating light source color rendition, developed by the Color Metrics Task Group, which was part of the IES Color Committee. And then it was later balloted by the Technical Review Council and the Board of Directors. The Color Metrics Task Force was a group of eight individuals, seven voting members. And we worked collaboratively over about a year and a half to really synthesize and bring in existing research on color rendering.

  13. Building America Webinar: Central Multifamily Water Heating Systems...

    Energy Savers

    Energy-Efficient Controls for Multifamily Domestic Hot Water Building America Webinar: Central Multifamily Water Heating Systems - Energy-Efficient Controls for Multifamily ...

  14. NREL: Learning - Concentrating Solar Power Basics

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Many power plants today use fossil fuels as a heat source to boil water. The steam from the boiling water spins a large turbine, which drives a generator to produce electricity. ...

  15. Furnace and Boiler Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2:50pm Addthis Furnaces heat air and distribute the heated air through a building using ducts; boilers heat water, providing either hot water or steam for heating. Furnaces...

  16. Alternative Fuels Data Center: Hydrogen Basics

    Alternative Fuels and Advanced Vehicles Data Center

    Hydrogen is locked up in enormous quantities in water (H2O), hydrocarbons (such as ... Hydrogen can also be produced from water through electrolysis, but this method is much ...

  17. Columbia Water & Light- Commercial Energy Efficiency Loans

    Energy.gov [DOE]

    The process involves several steps. First, the customer should have an ASHRAE Level II energy assessment conducted and complete a commercial loan application. Upon approval, the customer may proc...

  18. EIA Energy Efficiency-Table 5d. Economic and Physical Indicators...

    Gasoline and Diesel Fuel Update

    Energy Efficiency > Manufacturing Trend Data, 1998, 2002, and 2006 > Table 5d Page Last Modified: May 2010 Table 5d. Economic and Physical Indicators for Basic Chemicals (NAICS...

  19. New Aluminum Alloys for Energy-Efficient Transportation | U.S...

    Office of Science (SC) [DOE]

    New Aluminum Alloys for Energy-Efficient Transportation Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities ...

  20. Basic Energy Sciences FY 2011 Research Summaries

    SciTech Connect (OSTI)

    2011-01-01

    This report provides a collection of research abstracts for more than 1,300 research projects funded by the Office of Basic Energy Sciences (BES) in Fiscal Year 2011 at some 180 institutions across the U.S. This volume is organized along the three BES divisions: Materials Sciences and Engineering; Chemical Sciences, Geosciences, and Biosciences; and Scientific User Facilities.

  1. Basic Energy Sciences FY 2012 Research Summaries

    SciTech Connect (OSTI)

    2012-01-01

    This report provides a collection of research abstracts and highlights for more than 1,400 research projects funded by the Office of Basic Energy Sciences (BES) in Fiscal Year 2012 at some 180 institutions across the U.S. This volume is organized along the three BES Divisions: Materials Sciences and Engineering; Chemical Sciences, Geosciences, and Biosciences; and Scientific User Facilities.

  2. Basic Energy Sciences: Summary of Accomplishments

    DOE R&D Accomplishments [OSTI]

    1990-05-01

    For more than four decades, the Department of Energy, including its predecessor agencies, has supported a program of basic research in nuclear- and energy-related sciences, known as Basic Energy Sciences. The purpose of the program is to explore fundamental phenomena, create scientific knowledge, and provide unique user'' facilities necessary for conducting basic research. Its technical interests span the range of scientific disciplines: physical and biological sciences, geological sciences, engineering, mathematics, and computer sciences. Its products and facilities are essential to technology development in many of the more applied areas of the Department's energy, science, and national defense missions. The accomplishments of Basic Energy Sciences research are numerous and significant. Not only have they contributed to Departmental missions, but have aided significantly the development of technologies which now serve modern society daily in business, industry, science, and medicine. In a series of stories, this report highlights 22 accomplishments, selected because of their particularly noteworthy contributions to modern society. A full accounting of all the accomplishments would be voluminous. Detailed documentation of the research results can be found in many thousands of articles published in peer-reviewed technical literature.

  3. Basic Energy Sciences FY 2014 Research Summaries

    SciTech Connect (OSTI)

    2014-01-01

    This report provides a collection of research abstracts and highlights for more than 1,200 research projects funded by the Office of Basic Energy Sciences (BES) in Fiscal Year 2014 at some 200 institutions across the U.S. This volume is organized along the three BES Divisions: Materials Sciences and Engineering; Chemical Sciences, Geosciences, and Biosciences; and Scientific User Facilities.

  4. Transformer Efficiency Assessment - Okinawa, Japan

    SciTech Connect (OSTI)

    Thomas L. Baldwin; Robert J. Turk; Kurt S. Myers; Jake P. Gentle; Jason W. Bush

    2012-05-01

    The US Army Engineering & Support Center, Huntsville (USAESCH), and the US Marine Corps Base (MCB), Okinawa, Japan retained Idaho National Laboratory (INL) to conduct a Transformer Efficiency Assessment of key transformers located at multiple military bases in Okinawa, Japan. The purpose of this assessment is to support the Marine Corps Base, Okinawa in evaluating medium voltage distribution transformers for potential efficiency upgrades. The original scope of work included the MCB providing actual transformer nameplate data, manufacturers factory test sheets, electrical system data (kWh), demand data (kWd), power factor data, and electricity cost data. Unfortunately, the MCBs actual data is not available and therefore making it necessary to de-scope the original assessment. Note: Any similar nameplate data, photos of similar transformer nameplates, and basic electrical details from one-line drawings (provided by MCB) are not a replacement for actual load loss test data. It is recommended that load measurements are performed on the high and low sides of transformers to better quantify actual load losses, demand data, and power factor data. We also recommend that actual data, when available, be inserted by MCB Okinawa where assumptions have been made and then the LCC analysis updated. This report covers a generalized assessment of modern U.S. transformers in a three level efficiency category, Low-Level efficiency, Medium-Level efficiency, and High-Level efficiency.

  5. Transformer Efficiency Assessment - Okinawa, Japan

    SciTech Connect (OSTI)

    Thomas L. Baldwin; Robert J. Turk; Kurt S. Myers; Jake P. Gentle; Jason W. Bush

    2012-05-01

    The US Army Engineering & Support Center, Huntsville (USAESCH), and the US Marine Corps Base (MCB), Okinawa, Japan retained Idaho National Laboratory (INL) to conduct a Transformer Efficiency Assessment of “key” transformers located at multiple military bases in Okinawa, Japan. The purpose of this assessment is to support the Marine Corps Base, Okinawa in evaluating medium voltage distribution transformers for potential efficiency upgrades. The original scope of work included the MCB providing actual transformer nameplate data, manufacturer’s factory test sheets, electrical system data (kWh), demand data (kWd), power factor data, and electricity cost data. Unfortunately, the MCB’s actual data is not available and therefore making it necessary to de-scope the original assessment. Note: Any similar nameplate data, photos of similar transformer nameplates, and basic electrical details from one-line drawings (provided by MCB) are not a replacement for actual load loss test data. It is recommended that load measurements are performed on the high and low sides of transformers to better quantify actual load losses, demand data, and power factor data. We also recommend that actual data, when available, be inserted by MCB Okinawa where assumptions have been made and then the LCC analysis updated. This report covers a generalized assessment of modern U.S. transformers in a three level efficiency category, Low-Level efficiency, Medium-Level efficiency, and High-Level efficiency.

  6. Transformer Efficiency Assessment - Okinawa, Japan

    SciTech Connect (OSTI)

    Thomas L. Baldwin; Robert J. Turk; Kurt S. Myers; Jake P. Gentle; Jason W. Bush

    2012-08-01

    The US Army Engineering & Support Center, Huntsville (USAESCH), and the US Marine Corps Base (MCB), Okinawa, Japan retained Idaho National Laboratory (INL) to conduct a Transformer Efficiency Assessment of “key” transformers located at multiple military bases in Okinawa, Japan. The purpose of this assessment is to support the Marine Corps Base, Okinawa in evaluating medium voltage distribution transformers for potential efficiency upgrades. The original scope of work included the MCB providing actual transformer nameplate data, manufacturer’s factory test sheets, electrical system data (kWh), demand data (kWd), power factor data, and electricity cost data. Unfortunately, the MCB’s actual data is not available and therefore making it necessary to de-scope the original assessment. Note: Any similar nameplate data, photos of similar transformer nameplates, and basic electrical details from one-line drawings (provided by MCB) are not a replacement for actual load loss test data. It is recommended that load measurements are performed on the high and low sides of transformers to better quantify actual load losses, demand data, and power factor data. We also recommend that actual data, when available, be inserted by MCB Okinawa where assumptions have been made and then the LCC analysis updated. This report covers a generalized assessment of modern U.S. transformers in a three level efficiency category, Low-Level efficiency, Medium-Level efficiency, and High-Level efficiency.

  7. Alternative Fuels Data Center: Codes and Standards Basics

    Alternative Fuels and Advanced Vehicles Data Center

    Codes and Standards Basics to someone by E-mail Share Alternative Fuels Data Center: Codes and Standards Basics on Facebook Tweet about Alternative Fuels Data Center: Codes and Standards Basics on Twitter Bookmark Alternative Fuels Data Center: Codes and Standards Basics on Google Bookmark Alternative Fuels Data Center: Codes and Standards Basics on Delicious Rank Alternative Fuels Data Center: Codes and Standards Basics on Digg Find More places to share Alternative Fuels Data Center: Codes and

  8. Water Power | NREL

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Water Heating Water Heating Low-flow fixtures will help you reduce your hot water use and save money on your water heating bills. | Photo courtesy of Huntington Veterans Medical Ctr. Low-flow fixtures will help you reduce your hot water use and save money on your water heating bills. | Photo courtesy of Huntington Veterans Medical Ctr. Water heating accounts for about 18% of your home's energy use. Reducing your hot water use, employing energy-saving strategies, and choosing an energy efficient

  9. Basics of a Solar Electric System: Better Buildings Series Solar Electric Fact Sheet

    SciTech Connect (OSTI)

    Not Available

    2002-07-01

    Today's solar technologies are more efficient and versatile than ever before, adding to the appeal of an already desirable energy source. This fact sheet provides information on the basics of a solar electric system, including components of a system, how to choose solar modules, and how to choose a solar system.

  10. Water Heating | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Water Heating Water Heating Infographic: Water Heaters 101 Infographic: Water Heaters 101 Everything you need to know about saving money on water heating costs. Read more Selecting a New Water Heater Selecting a New Water Heater Tankless? Storage? Solar? Save money on your water heating bill by choosing the right type of energy-efficient water heater for your needs. Read more Sizing a New Water Heater Sizing a New Water Heater When buying a new water heater, bigger is not always better. Learn

  11. Flow cytometry aids basic cell biology research and drug discovery

    U.S. Department of Energy (DOE) all webpages (Extended Search)

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    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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    Energy Savers

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    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

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