Sample records for annual geothermal heat

  1. Geothermal heating

    SciTech Connect (OSTI)

    Aureille, M.

    1982-01-01T23:59:59.000Z

    The aim of the study is to demonstrate the viability of geothermal heating projects in energy and economic terms and to provide nomograms from which an initial estimate may be made without having to use data-processing facilities. The effect of flow rate and temperature of the geothermal water on drilling and on the network, and the effect of climate on the type of housing are considered.

  2. Geothermal Heat Flow and Existing Geothermal Plants | Department...

    Energy Savers [EERE]

    Geothermal Heat Flow and Existing Geothermal Plants Geothermal Heat Flow and Existing Geothermal Plants Geothermal Heat Flow and Existing Plants With plants in development. Click...

  3. Boise City Geothermal District Heating District Heating Low Temperatur...

    Open Energy Info (EERE)

    Boise City Geothermal District Heating District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Boise City Geothermal District Heating District Heating...

  4. Geothermal Heat Pump Grant Program

    Broader source: Energy.gov [DOE]

    The Maryland Energy Administration (MEA) offers rebates of $3,000 for residential geothermal heat pump systems and up to $4,500 for non-residential geothermal heat pump systems. The residential...

  5. 2014 Geothermal Resources Council Annual Meeting

    Broader source: Energy.gov [DOE]

    The Annual Meeting attracts geothermal industry stakeholders worldwide and provides opportunity to participate in presentations on geothermal research, exploration, development, and utilization.

  6. Philip District Heating District Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Philip District Heating District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Philip District Heating District Heating Low Temperature Geothermal...

  7. Midland District Heating District Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Midland District Heating District Heating Low Temperature Geothermal Facility Facility Midland District Heating Sector Geothermal energy Type District Heating Location Midland,...

  8. Kethcum District Heating District Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Kethcum District Heating District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Kethcum District Heating District Heating Low Temperature Geothermal...

  9. Energy 101: Geothermal Heat Pumps

    Broader source: Energy.gov [DOE]

    An energy-efficient heating and cooling alternative, the geothermal heat pump system moves heat from the ground to a building (or from a building to the ground) through a series of flexible pipe ...

  10. Energy 101: Geothermal Heat Pumps

    ScienceCinema (OSTI)

    None

    2013-05-29T23:59:59.000Z

    An energy-efficient heating and cooling alternative, the geothermal heat pump system moves heat from the ground to a building (or from a building to the ground) through a series of flexible pipe "loops" containing water. This edition of Energy 101 explores the benefits Geothermal and the science behind how it all comes together.

  11. Energy 101: Geothermal Heat Pumps

    SciTech Connect (OSTI)

    None

    2011-01-01T23:59:59.000Z

    An energy-efficient heating and cooling alternative, the geothermal heat pump system moves heat from the ground to a building (or from a building to the ground) through a series of flexible pipe "loops" containing water. This edition of Energy 101 explores the benefits Geothermal and the science behind how it all comes together.

  12. Geothermal Technologies Program Annual Peer Review Presentation...

    Energy Savers [EERE]

    Technologies Program Annual Peer Review Presentation By Doug Hollett Geothermal Technologies Program Annual Peer Review Presentation By Doug Hollett 2012 Peer Review presentation...

  13. GEOTHERMAL HEAT PUMPS Jack DiEnna

    E-Print Network [OSTI]

    GEOTHERMAL HEAT PUMPS THE "PLAYBOOK" Jack DiEnna Executive Director The Geothermal National What do we call it... Geothermal, Ground Source, GeoExchange. The feds call it geothermal heat pumps IS GEOTHERMAL HEAT PUMP TECHNOLOGY ??? Answer: It is a 60 year old technology! #12;FACT GHP's were first written

  14. Geothermal heating for Caliente, Nevada

    SciTech Connect (OSTI)

    Wallis, F.; Schaper, J.

    1981-02-01T23:59:59.000Z

    Utilization of geothermal resources in the town of Caliente, Nevada (population 600) has been the objective of two grants. The first grant was awarded to Ferg Wallis, part-owner and operator of the Agua Caliente Trailer Park, to assess the potential of hot geothermal water for heating the 53 trailers in his park. The results from test wells indicate sustainable temperatures of 140/sup 0/ to 160/sup 0/F. Three wells were drilled to supply all 53 trailers with domestic hot water heating, 11 trailers with space heating and hot water for the laundry from the geothermal resource. System payback in terms of energy cost-savings is estimated at less than two years. The second grant was awarded to Grover C. Dils Medical Center in Caliente to drill a geothermal well and pipe the hot water through a heat exchanger to preheat air for space heating. This geothermal preheater served to convert the existing forced air electric furnace to a booster system. It is estimated that the hospital will save an average of $5300 in electric bills per year, at the current rate of $.0275/KWH. This represents a payback of approximately two years. Subsequent studies on the geothermal resource base in Caliente and on the economics of district heating indicate that geothermal may represent the most effective supply of energy for Caliente. Two of these studies are included as appendices.

  15. Geothermal Heat Pumps | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    it work? A geothermal heat pump uses the constant below ground temperature of soil or water to heat and cool your home. Geothermal heat pumps (GHPs), sometimes referred to as...

  16. State Regulatory Oversight of Geothermal Heat Pump

    E-Print Network [OSTI]

    State Regulatory Oversight of Geothermal Heat Pump Installa:ons: 2012 & 2009 Kevin McCray, Execu:ve Director #12;2009 #12;Sponsors ·The Geothermal Hea requested geothermal hea:ng and cooling regulatory data. · An email containing

  17. Hot Dry Rock Heat Mining Geothermal Energy Development Program - Annual Report Fiscal Year 1990

    SciTech Connect (OSTI)

    Duchane, David

    1991-01-01T23:59:59.000Z

    This was a year of significant accomplishment in the Hot Dry Rock (HDR) Program. Most importantly, the design, construction, and installation of the surface plant for the Phase II system neared completion by the end of the year. Basic process design work has been completed, and all major components of the system except the gas/particle separator have been procured. For this component, previous design problems have been resolved, and purchase during the first half of FY91 is anticipated. Installation of the surface plant is well underway. The system will be completed and ready for operation by the end of FY91 under the current funding scenario. The operational schedule to be followed will then depend upon the program funding level. Our goal is to start long-term flow testing as soon as possible. Of equal importance, from the standpoint of the long-term viability of HDR technology, during this year, for the first time, it has been demonstrated in field testing that it should be possible to operate HDR reservoirs with water losses of 1-3%, or even less. Our experience in the deep, hot, Phase II reservoir at Fenton Hill is in sharp contrast to the significant water losses seen by Japanese and British scientists working in shallower, cooler, HDR reservoirs. Calculations and modeling based on field data have shown that water consumption declines with the log of time in a manner related to water storage in the reservoir. This work may be crucial in proving that HDR can be an economically viable means for producing energy, and that it is useful even in areas where water is in short supply. In addition, an engineering model was developed to predict and explain water consumption in HDR reservoirs under pressure, the collection and processing of seismic information was more highly automated, and the detection limits for reactive tracers were lowered to less than 1 part per billion. All of these developments will add greatly to our ability to conduct, analyze, and understand the long-term test (LTFT). Water-rights acquisition activities, site clean-up, and improvements in the 1 million gallon storage pond at Fenton Hill have assured that we will have adequate water to carry out a vigorous testing program in a safe and environmentally-sound manner. The 1 million gallon pond was recontoured, and lined with a sophisticated multi-layer plastic barrier. A large part of the work on the pond was paid for with funds from the Laboratory's Health, Safety and Environment Division. Almost all the expected achievements set forth in the FY90 Annual Operating Plan were substantially accomplished this past year, in spite of a $300,000 shortfall in funding. This funding shortfall did delay some work and result in some projects not being completed, however. They have had to go more slowly than they would like on some aspects of the installation of the surface plant for the LTFT, purchase of non-critical equipment, such as a back-up electric generator for Fenton Hill, has been delayed, and some work has not been brought to an adequate conclusion. The fracture healing work, for example, was completed but not written up. they simply did not have the funds to pay for the effort needed to fully document this work. As the program enters FY91, the completion of the surface plant at Fenton Hill is within sight. The long-awaited LTFT can then begin, and the large investment in science and technology represents by the HDR Program will begin to bear still greater dividends.

  18. STANFORD GEOTHERMAL PROGRAM FIRST ANNUAL REPORT

    E-Print Network [OSTI]

    Stanford University

    STANFORD GEOTHERMAL PROGRAM FIRST ANNUAL REPORT t o U.S. DEPARTMENT OF ENERGY LAWRENCE BERKELEY PRESENTATIONS & PUBLICATIONS APPENDIX A: STANDARD GEOTHERMAL PROGRAM WEEKLY SEMINAR ii 1 4 23 35 49 58 60 63 65 Geothermal Program has maintained momentum built up under the previous National Science Foundation support

  19. Geothermal Energy Development annual report 1979

    SciTech Connect (OSTI)

    Not Available

    1980-08-01T23:59:59.000Z

    This report is an exerpt from Earth Sciences Division Annual Report 1979 (LBL-10686). Progress in thirty-four research projects is reported including the following area: geothermal exploration technology, geothermal energy conversion technology, reservoir engineering, and geothermal environmental research. Separate entries were prepared for each project. (MHR)

  20. DOE Offers $15 Million Geothermal Heat Recovery Opportunity ...

    Office of Environmental Management (EM)

    15 Million Geothermal Heat Recovery Opportunity DOE Offers 15 Million Geothermal Heat Recovery Opportunity August 25, 2010 - 11:11am Addthis Photo of geothermal power plant....

  1. Geothermal Resources Council Annual Meeting - Doug Hollett Presentatio...

    Office of Environmental Management (EM)

    Resources Council Annual Meeting - Doug Hollett Presentation, October 2011 Geothermal Resources Council Annual Meeting - Doug Hollett Presentation, October 2011 Keynote...

  2. CanGEA Fifth Annual Geothermal Conference Presentation - Mapping...

    Broader source: Energy.gov (indexed) [DOE]

    Mapping and database workshop presentation presented at the Canadian Geothermal Energy Association Fifth Annual Geothermal Conference on March 21, 2013 by Arlene Anderson, Physical...

  3. Groundwater and geothermal: urban district heating applications

    SciTech Connect (OSTI)

    Mounts, R.; Frazier, A.; Wood, E.; Pyles, O.

    1982-01-01T23:59:59.000Z

    This report describes how several cities use groundwater and geothermal energy in district heating systems. It begins with groundwater, introducing the basic technology and techniques of development, and describing two case studies of cities with groundwater-based district heating systems. The second half of the report consists of three case studies of cities with district heating systems using higher temperature geothermal resources.

  4. Natural Refrigerant, Geothermal Heating & Cooling Solutions

    E-Print Network [OSTI]

    Natural Refrigerant, Geothermal Heating & Cooling Solutions Lalit Chordia, PhD, Marc Portnoff 150.thargeo.com Thar Geothermal, LLC © 2013 All Rights Reserved CO2MFORT ADVANTAGE Nature's Talk Outline · Introduction to Thar Geothermal · Carbon Dioxide (R744) the Environmentally Exceptional Refrigerant · Thar

  5. Residential Geothermal Heat Pump Retrofit Webinar

    Broader source: Energy.gov [DOE]

    A webinar by National Renewable Energy Laboratory Senior Engineer Erin Anderson about geothermal heat pump (GHP) technology options, applications, and installation costs for residences.

  6. Geothermal direct heat applications program summary

    SciTech Connect (OSTI)

    None

    1982-08-01T23:59:59.000Z

    In 1978, the Department of Energy Division of Geothermal and Hydropower Technologies initiated a program to accelerate the direct use of geothermal energy, in which 23 projects were selected. The projects, all in the western part of the US, cover the use of geothermal energy for space conditioning (heating and cooling) and agriculture (aquaculture and greenhouses). Initially, two projects were slated for industrial processing; however, because of lack of geothermal resources, these projects were terminated. Of the 23 projects, seven were successfully completed, ten are scheduled for completion by the end of 1983, and six were terminated for lack of resources. Each of the projects is being documented from its inception through planning, drilling, and resource confirmation, design, construction, and one year of monitoring. The information is being collected, evaluated, and will be reported. Several reports will be produced, including detailed topical reports on economics, institutional and regulatory problems, engineering, and a summary final report. To monitor progress and provide a forum for exchange of information while the program is progressing, semiannual or annual review meetings have been held with all project directors and lead engineers for the past four years. This is the sixth meeting in that series. Several of the projects which have been terminated are not included this year. Overall, the program has been very successful. Valuable information has been gathered. problems have been encountered and resolved concerning technical, regulatory, and institutional constraints. Most projects have been proven to be economical with acceptable pay-back periods. Although some technical problems have emerged, they were resolved with existing off-the-shelf technologies and equipment. The risks involved in drilling for the resource, the regulatory constraints, the high cost of finance, and large front-end cost remain the key obstacles to the broad development of geothermal direct use applications.

  7. GEOTHERMAL / SOLAR HYBRID DESIGNS: USE OF GEOTHERMAL ENERGY FOR CSP FEEDWATER HEATING

    SciTech Connect (OSTI)

    Craig Turchi; Guangdong Zhu; Michael Wagner; Tom Williams; Dan Wendt

    2014-10-01T23:59:59.000Z

    This paper examines a hybrid geothermal / solar thermal plant design that uses geothermal energy to provide feedwater heating in a conventional steam-Rankine power cycle deployed by a concentrating solar power (CSP) plant. The geothermal energy represents slightly over 10% of the total thermal input to the hybrid plant. The geothermal energy allows power output from the hybrid plant to increase by about 8% relative to a stand-alone CSP plant with the same solar-thermal input. Geothermal energy is converted to electricity at an efficiency of 1.7 to 2.5 times greater than would occur in a stand-alone, binary-cycle geothermal plant using the same geothermal resource. While the design exhibits a clear advantage during hybrid plant operation, the annual advantage of the hybrid versus two stand-alone power plants depends on the total annual operating hours of the hybrid plant. The annual results in this draft paper are preliminary, and further results are expected prior to submission of a final paper.

  8. Walley's Hot Springs Resort Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Walley's Hot Springs Resort Space Heating Low Temperature Geothermal Facility Facility Walley's...

  9. Warner Springs Ranch Resort Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warner Springs Ranch Resort Space Heating Low Temperature Geothermal Facility Facility Warner...

  10. Agua Calientes Trailer Park Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Calientes Trailer Park Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Agua Calientes Trailer Park Space Heating Low Temperature Geothermal...

  11. Hot Springs National Park Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    National Park Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Hot Springs National Park Space Heating Low Temperature Geothermal Facility...

  12. District Wide Geothermal Heating Conversion Blaine County School...

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

    District Wide Geothermal Heating Conversion Blaine County School District District Wide Geothermal Heating Conversion Blaine County School District This project will impact the...

  13. Modesto Memorial Hospital Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Memorial Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Modesto Memorial Hospital Space Heating Low Temperature Geothermal Facility...

  14. Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal Facility...

  15. Senior Citizens' Center Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Senior Citizens' Center Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Senior Citizens' Center Space Heating Low Temperature Geothermal Facility...

  16. Waunita Hot Springs Ranch Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Springs Ranch Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Waunita Hot Springs Ranch Space Heating Low Temperature Geothermal Facility...

  17. Glenwood Hot Springs Lodge Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Lodge Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Glenwood Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Facility...

  18. Pagosa Springs Private Wells Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Private Wells Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Pagosa Springs Private Wells Space Heating Low Temperature Geothermal Facility...

  19. Merle West Medical Center Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Merle West Medical Center Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Merle West Medical Center Space Heating Low Temperature Geothermal...

  20. Warm Springs State Hospital Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    State Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warm Springs State Hospital Space Heating Low Temperature Geothermal Facility...

  1. Enhanced Geothermal in Nevada: Extracting Heat From the Earth...

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

    Enhanced Geothermal in Nevada: Extracting Heat From the Earth to Generate Sustainable Power Enhanced Geothermal in Nevada: Extracting Heat From the Earth to Generate Sustainable...

  2. Flathead Electric Cooperative Facility Geothermal Heat Pump System...

    Broader source: Energy.gov (indexed) [DOE]

    Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade Project Will Take Advantage of...

  3. DOE Webinar - Residential Geothermal Heat Pump Retrofits (Presentation)

    SciTech Connect (OSTI)

    Anderson, E. R.

    2010-12-14T23:59:59.000Z

    This presentation was given December 14, 2010, as part of DOE's Webinar series. The presentation discusses geothermal heat pump retrofits, technology options, and an overview of geothermal energy and geothermal heat pumps.

  4. Geothermal-Heat Extraction As a source of renewable energy, geothermal-heat extraction has become increasingly

    E-Print Network [OSTI]

    Kornhuber, Ralf

    Geothermal-Heat Extraction As a source of renewable energy, geothermal-heat extraction has become increasingly important in recent years. Proper design of a geothermal system, be it for deep or for shallow

  5. Geothermal heat pump grouting materials

    SciTech Connect (OSTI)

    Allan, M.

    1998-08-01T23:59:59.000Z

    The thermal conductivity of cementitious grouts has been investigated in order to determine suitability of these materials for grouting vertical boreholes used with geothermal heat pumps. The roles of mix variables such as water/cement ratio, sand/cement ratio and superplasticizer dosage were measured. The cement-sand grouts were also tested for rheological characteristics, bleeding, permeability, bond to HDPE pipe, shrinkage, coefficient of thermal expansion, exotherm, durability and environmental impact. This paper summarizes the thermal conductivity, permeability, bonding and exotherm data for selected cementitious grouts. The theoretical reduction in bore length that could be achieved with the BNL-developed cement-sand grouts is examined. Finally, the FY 98 research and field trials are discussed.

  6. Geothermal Heat Pumps Produce Dramatic Savings 

    E-Print Network [OSTI]

    Niess, R. C.

    1983-01-01T23:59:59.000Z

    applications. One approach now expanding the direct use of geothermal energy is coupling this energy resource with high temperature, industrial-type water-to water heat pumps. Such systems can tap geothermal energy in 50 F to 120 F water, normally available...

  7. Geothermal Heat Pumps Produce Dramatic Savings

    E-Print Network [OSTI]

    Niess, R. C.

    1983-01-01T23:59:59.000Z

    applications. One approach now expanding the direct use of geothermal energy is coupling this energy resource with high temperature, industrial-type water-to water heat pumps. Such systems can tap geothermal energy in 50 F to 120 F water, normally available...

  8. annual interagency geothermal: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ground Source, GeoExchange. The feds call it geothermal heat pumps IS GEOTHERMAL HEAT PUMP TECHNOLOGY ??? Answer: It is a 60 year old technology 12;FACT GHP's were first...

  9. Modeling of Heat Transfer in Geothermal Heat Exchangers 

    E-Print Network [OSTI]

    Cui, P.; Man, Y.; Fang, Z.

    2006-01-01T23:59:59.000Z

    Ground-coupled heat pump (GCHP) systems have been gaining increasing popularity for space conditioning in residential and commercial buildings. The geothermal heat exchanger (GHE) is devised for extraction or injection of thermal energy from...

  10. Geothermal Heat Pump Tax Credit (Corporate)

    Broader source: Energy.gov [DOE]

    [http://www.emnrd.state.nm.us/ECMD/LawsRegulationsExecutiveOrders/documen... HB 375], signed in April 2009, created a tax credit in New Mexico for geothermal heat pumps purchased and installed...

  11. Geothermal Heat Pump Tax Credit (Personal)

    Broader source: Energy.gov [DOE]

    [http://www.emnrd.state.nm.us/ECMD/LawsRegulationsExecutiveOrders/documen... HB 375], signed in April 2009, created a tax credit in New Mexico for geothermal heat pumps purchased and installed...

  12. Heat flow and geothermal studies in the state of Washington

    SciTech Connect (OSTI)

    Blackwell, D.D.; Steele, J.L.; Kelley, S.A.

    1985-08-01T23:59:59.000Z

    Existing geothermal gradient and heat flow data for the state of Washington are summarized. In addition, information on mean-annual ground surface temperatures is included. The data consist of accurate, detailed temperature-depth measurements in selected available holes throughout the state of Washington made between 1979 and 1982. Measurements of thermal conductivity on selected rock samples from these drill holes and ancillary information required to assess the significance of the data and calculate heat flow values were obtained as well. Information is presented on the mean-annual ground-surface temperatures throughout the state of Washington. 32 refs., 15 figs., 4 tabs.

  13. Sandia National Laboratories: extreme heat of deep geothermal...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    extreme heat of deep geothermal wells Sandia and Atlas-Copco Secoroc Advance to Phase 2 in Their Geothermal Energy Project On July 31, 2013, in Energy, Geothermal, News, News &...

  14. About convective heat transfer in geothermal systems

    SciTech Connect (OSTI)

    Pashkevich, R.I. [Kamchatsky Complex Department of NIPIgeotherm Institute, Petropavlovsk-Kamchatsky (Russian Federation)

    1996-12-31T23:59:59.000Z

    The interphase fluid-rock heat exchange in convective beat transfer in geothermal systems is investigated Nonlinear model of interphase heat exchange is suggested. Calculation for one dimension case and comparison with known Anzelius-Schumann solution is presented Generalized type block heat transfer model is formulated. The model is adequate for case of geothermal systems and reservoir when a rock block size is comparable with filtration path length. Criterion equations for nonstationary coefficients of interphase heat exchange we presented these equations were obtained in laboratory experiments with diorites.

  15. Research and Development of Information on Geothermal Direct Heat Application Projects

    SciTech Connect (OSTI)

    Hederman, William F., Jr.; Cohen, Laura A.

    1981-10-01T23:59:59.000Z

    This is the first annual report of ICF's geothermal R&D project for the Department of Energy's Idaho Operations Office. The overall objective of this project is to compile, analyze, and report on data from geothermal direct heat application projects. Ultimately, this research should convey the information developed through DOE's and Program Opportunity Notice (PON) activities as well as through other pioneering geothermal direct heat application projects to audiences which can use the early results in new, independent initiatives. A key audience is potential geothermal investors.

  16. NATIONAL GEOTHERMAL INFORMATION RESOURCE ANNUAL REPORT, 1977

    E-Print Network [OSTI]

    Phillips, Sidney L.

    2012-01-01T23:59:59.000Z

    an International Geothermal Energy Comnuni ty", J .C.environmental aspects of geothermal energy which provide theData Compilation Geothermal Energy Aspects o f Hydrogen

  17. Heat pump assisted geothermal heating system for Felix Spa, Romania

    SciTech Connect (OSTI)

    Rosca, Marcel; Maghiar, Teodor

    1996-01-24T23:59:59.000Z

    The paper presents a pre-feasibility type study of a proposed heat pump assisted geothermal heating system for an average hotel in Felix Spa, Romania. After a brief presentation of the geothermal reservoir, the paper gives the methodology and the results of the technical and economical calculations. The technical and economical viability of the proposed system is discussed in detail in the final part of the paper.

  18. Geothermal direct heat applications program summary

    SciTech Connect (OSTI)

    None

    1980-04-01T23:59:59.000Z

    The use of geothermal energy for direct heat purposes by the private sector within the US has been quite limited to date. However, there is a large potential market for thermal energy in such areas as industrial processing, agribusiness, and space/water heating of commercial and residential buildings. Technical and economic information is needed to assist in identifying prospective direct heat users and to match their energy needs to specific geothermal reservoirs. Technological uncertainties and associated economic risks can influence the user's perception of profitability to the point of limiting private investment in geothermal direct applications. To stimulate development in the direct heat area, the Department of Energy, Division of Geothermal Energy, issued two Program Opportunity Notices (PON's). These solicitations are part of DOE's national geothermal energy program plan, which has as its goal the near-term commercialization by the private sector of hydrothermal resources. Encouragement is being given to the private sector by DOE cost-sharing a portion of the front-end financial risk in a limited number of demonstration projects. The twenty-two projects summarized herein are direct results of the PON solicitations.

  19. Geothermal Heat Pump Basics | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.NewofGeothermal Heat Pump Basics Geothermal Heat Pump Basics

  20. Shoshone Motel & Trailer Park Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Shoshone Motel & Trailer Park Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Shoshone Motel & Trailer Park Space Heating Low Temperature...

  1. Fairmont Hot Springs Resort Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Institute of Technology's Geo-Heat Center1 Fairmont Hot Springs Resort is a Space Heating low temperature direct use geothermal facility in Fairmont, Montana. This article is...

  2. Maywood Industries of Oregon Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Maywood Industries of Oregon Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Maywood Industries of Oregon Space Heating Low Temperature...

  3. Flathead Electric Cooperative Facility Geothermal Heat Pump System...

    Broader source: Energy.gov (indexed) [DOE]

    Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade CHERYL TALLEY, PE Flathead Electric Cooperative Ground Source Heat Pumps Demonstration Projects May 19,...

  4. Covered Product Category: Residential Geothermal Heat Pumps

    Broader source: Energy.gov [DOE]

    FEMP provides acquisition guidance across a variety of product categories, including geothermal heat pumps, which are an ENERGY STARź-qualified product category. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

  5. NATIONAL GEOTHERMAL INFORMATION RESOURCE ANNUAL REPORT, 1977

    E-Print Network [OSTI]

    Phillips, Sidney L.

    2012-01-01T23:59:59.000Z

    Schwartz, Oct: 1977. "Geothermal Aspects o f Hydrogen Sul 4.S.R. Schwartz, "Review o f Geothermal Subsidence", LBL-3220,k i l e d to over 200 geothermal specialists i n 1977. Over

  6. Convective heat transport in geothermal systems

    SciTech Connect (OSTI)

    Lippmann, M.J.; Bodvarsson, G.S.

    1986-08-01T23:59:59.000Z

    Most geothermal systems under exploitation for direct use or electrical power production are of the hydrothermal type, where heat is transferred essentially by convection in the reservoir, conduction being secondary. In geothermal systems, buoyancy effects are generally important, but often the fluid and heat flow patterns are largely controlled by geologic features (e.g., faults, fractures, continuity of layers) and location of recharge and discharge zones. During exploitation, these flow patterns can drastically change in response to pressure and temperature declines, and changes in recharge/discharge patterns. Convective circulation models of several geothermal systems, before and after start of fluid production, are described, with emphasis on different characteristics of the systems and the effects of exploitation on their evolution. Convective heat transport in geothermal fields is discussed, taking into consideration (1) major geologic features; (2) temperature-dependent rock and fluid properties; (3) fracture- versus porous-medium characteristics; (4) single- versus two-phase reservoir systems; and (5) the presence of noncondensible gases.

  7. Geothermal Energy--Clean Power From the Earth's Heat

    E-Print Network [OSTI]

    Geothermal Energy--Clean Power From the Earth's Heat Circular 1249 U.S. Department of the Interior U.S. Geological Survey #12;Geothermal Energy--Clean Power From the Earth's Heat By Wendell A-in-publication data are on file with the Library of Congress (http://www.loc.gov/). Cover--Coso geothermal plant, Navy

  8. Measuring the Costs & Benefits of Nationwide Geothermal Heat

    E-Print Network [OSTI]

    Measuring the Costs & Benefits of Nationwide Geothermal Heat Pump (GHP) Deployment ­ A Progress to measure the costs and benefits of nationwide geothermal heat pump (GHP) deployment. · First market study to quantify the entire GHP chain ­ Manufacturing ­ Design ­ Installation · GHPsRUS is short for "geothermal

  9. Geothermal heat pumps for heating and cooling

    SciTech Connect (OSTI)

    Garg, S.C.

    1994-03-01T23:59:59.000Z

    Naval Facilities Engineering Service Center (NFESC) has been tasked by Naval Shore Facilities Energy Office to evaluate the NAS Patuxent River ground-source heat pump (GHP) installation. A large part of a building`s energy consumption consists of heating and air conditioning for occupant comfort. The space heating requirements are normally met by fossil-fuel-fired equipment or electric resistance heating. Cooling is provided by either air conditioners or heat pumps, both using electricity as an energy source.

  10. White County REMC- Residential Geothermal Heat Pump Rebate Program

    Broader source: Energy.gov [DOE]

    White County REMC offers incentives for the purchase and installation of energy efficient heat pumps. Air-source heat pumps are eligible for a rebate of $300, while geothermal heat pumps are...

  11. Energy 101: Geothermal Heat Pumps | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    - 12:15pm Addthis An energy-efficient heating and cooling alternative, the geothermal heat pump system moves heat from the ground to a building (or from a building to the ground)...

  12. Imperial County geothermal development annual meeting: summary

    SciTech Connect (OSTI)

    Not Available

    1983-01-01T23:59:59.000Z

    All phases of current geothermal development in Imperial County are discussed and future plans for development are reviewed. Topics covered include: Heber status update, Heber binary project, direct geothermal use for high-fructose corn sweetener production, update on county planning activities, Brawley and Salton Sea facility status, status of Imperial County projects, status of South Brawley Prospect 1983, Niland geothermal energy program, recent and pending changes in federal procedures/organizations, plant indicators of geothermal fluid on East Mesa, state lands activities in Imperial County, environmental interests in Imperial County, offshore exploration, strategic metals in geothermal fluids rebuilding of East Mesa Power Plant, direct use geothermal potential for Calipatria industrial Park, the Audubon Society case, status report of the Cerro Prieto geothermal field, East Brawley Prospect, and precision gravity survey at Heber and Cerro Prieto geothermal fields. (MHR)

  13. Geothermal Direct Heat Applications Program Summary

    SciTech Connect (OSTI)

    None

    1981-09-25T23:59:59.000Z

    Because of the undefined risk in the development and use of geothermal energy as a thermal energy source, the Department of Energy Division of Geothermal Energy solicited competitive proposals for field experiments in the direct use of geothermal energy. Twenty-two proposals were selected for cost-shared funding with one additional project co-funded by the State of New Mexico. As expected, the critical parameter was developing a viable resource. So far, of the twenty resources drilled, fourteen have proved to be useful resources. These are: Boise, Idaho; Elko heating Company in Nevada; Pagosa Springs, Colorado; Philip School, Philip, South Dakota; St. Mary's Hospital, Pierre, South Dakota; Utah Roses near Salt Lake City; Utah State Prison, Utah; Warm Springs State Hospital, Montana; T-H-S Hospital, Marlin, Texas; Aquafarms International in the Cochella Valley, California; Klamath County YMCA and Klamath Falls in Oregon; Susanville, California and Monroe, utah. Monroe's 164 F and 600 gpm peak flow was inadequate for the planned project, but is expected to be used in a private development. Three wells encountered a resource insufficient for an economical project. These were Madison County at Rexburg, Idaho; Ore-Ida Foods at Ontario, Oregon and Holly Sugar at Brawley, California. Three projects have yet to confirm their resource. The Navarro College well in Corsicana, Texas is being tested; the Reno, Moana, Nevada well is being drilled and the El Centro, California well is scheduled to be drilled in January 1982. The agribusiness project at Kelly Hot Springs was terminated because a significant archeological find was encountered at the proposed site. The Diamond Ring Ranch in South Dakota, and the additional project, Carrie Tingley Hospital in Truth or Consequences, New Mexico both used existing wells. The projects that encountered viable resources have proceeded to design, construct, and in the most advanced projects, to operate geothermal systems for district heating, space heating, grain drying and aquaculture.

  14. DOE Webinar ? Residential Geothermal Heat Pump Retrofits (Presentatio...

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

    Sustainable Energy Resources for Consumers (SERC) - GeothermalGround-Source Heat Pumps Measuring the Costs and Economic, Social, and Environmental Benefits of Nationwide...

  15. Heat flow and microearthquake studies, Coso Geothermal Area,...

    Open Energy Info (EERE)

    Final report Jump to: navigation, search OpenEI Reference LibraryAdd to library Book: Heat flow and microearthquake studies, Coso Geothermal Area, China Lake, California....

  16. Fluid Circulation and Heat Extraction from Engineered Geothermal...

    Open Energy Info (EERE)

    A large amount of fluid circulation and heat extraction (i.e., thermal power production) research and testing has been conducted on engineered geothermal reservoirs in the...

  17. Lightning Dock Geothermal Space Heating Project: Lightning Dock...

    Open Energy Info (EERE)

    Dock KGRA, New Mexico Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Lightning Dock Geothermal Space Heating Project: Lightning Dock KGRA, New...

  18. Geothermal: Sponsored by OSTI -- Chapter 11. Heat Exchangers

    Office of Scientific and Technical Information (OSTI)

    1. Heat Exchangers Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About Publications Advanced Search New Hot Docs News Related Links...

  19. Geothermal: Sponsored by OSTI -- Berlin, Maryland district heating...

    Office of Scientific and Technical Information (OSTI)

    Berlin, Maryland district heating assessment project Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About Publications Advanced...

  20. Monitoring SERC Technologies —Geothermal/Ground Source Heat Pumps

    Broader source: Energy.gov [DOE]

    A webinar by National Renewable Energy Laboratory Project Leader Dave Peterson about Geothermal/Ground Source Heat Pumps and how to properly monitor its installation.

  1. Geothermal Resource-Reservoir Investigations Based On Heat Flow...

    Open Energy Info (EERE)

    numerical models are used to establish basic qualitative relationships between structure, heat input, and permeability distribution, and the resulting geothermal system. A series...

  2. Modeling of Heat Transfer in Geothermal Heat Exchangers

    E-Print Network [OSTI]

    Cui, P.; Man, Y.; Fang, Z.

    2006-01-01T23:59:59.000Z

    , University of Lund, Sweden, [7] Fang, Z., Diao, N., and Cui, P., Discontinuous operation of geothermal heat exchangers [J], Tsinghua Science and Technology. , 2002, 7 194?197. [8] Hellstrom, G., Ground heat storage -- Thermal analysis of duct storage... systems [D], Department of Mathem Sweden, 1991. [9] Mei, V. C. and Baxter, V. D., Performance of a ground-coupled heat pump with multiple dissimilar U-tu Transactions, 1986, 92 Part 2, 22-25. [10] Yavuzturk, C., Spitler, J. D. and Rees, S. J., A...

  3. Geothermal Heat Pumps | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) Environmental AssessmentsGeoffrey CampbelllongApplyingGeorgeGeothermal Heat Pumps

  4. U.S. geothermal district heating : barriers and enablers

    E-Print Network [OSTI]

    Thorsteinsson, Hildigunnur H

    2008-01-01T23:59:59.000Z

    Geothermal district heating experience in the U.S. is reviewed and evaluated to explore the potential impact of utilizing this frequently undervalued renewable energy resource for space and hot water heating. Although the ...

  5. Geothermal Heating and Cooling Systems Featured on NBC Nightly...

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

    Heating and Cooling Systems Featured on NBC Nightly News Geothermal Heating and Cooling Systems Featured on NBC Nightly News April 13, 2009 - 11:24am Addthis NBC Nightly News...

  6. Interagency Geothermal Coordinating Council fifth annual report. Final draft

    SciTech Connect (OSTI)

    Abel, Fred H.

    1981-07-07T23:59:59.000Z

    Geothermal energy is the natural heat of the earth, and can be tapped as a clean, safe, economical alternative source of energy. Much of the geothermal energy resource is recoverable with current or near-current technology and could make a significant contribution both to increasing domestic energy supplies and to reducing the US dependence on imported oil. Geothermal energy can be used for electric power production, residential and commercial space heating and cooling, industrial process heat, and agricultural process applications. This report describes the progress for fiscal year 1980 (FY80) of the Federal Geothermal Program. It also summarizes the goals, strategy, and plans which form the basis for the FY81 and FY82 program activities and reflects the recent change in national policy affecting Federal research, development and demonstration programs. The Interagency Geothermal Coordinating Council (IGCC) believes that substantial progress can and will be made in the development of geothermal energy. The IGCC goals are: (1) reduce the institutional barriers so that geothermal projects can be on-line in one-half the current time; (2) make moderate temperature resources an economically competitive source of electricity; (3) remove the backlog of noncompetitive lease applications; (4) competitive lease all KGRA lands; and (5) cut the cost of hydrothermal technology by 25%.

  7. New geothermal heat extraction process to deliver clean power generation

    ScienceCinema (OSTI)

    Pete McGrail

    2012-12-31T23:59:59.000Z

    A new method for capturing significantly more heat from low-temperature geothermal resources holds promise for generating virtually pollution-free electrical energy. Scientists at the Department of Energys Pacific Northwest National Laboratory will determine if their innovative approach can safely and economically extract and convert heat from vast untapped geothermal resources. The goal is to enable power generation from low-temperature geothermal resources at an economical cost. In addition to being a clean energy source without any greenhouse gas emissions, geothermal is also a steady and dependable source of power.

  8. Hawaiian direct-heat grants encourage geothermal creativity

    SciTech Connect (OSTI)

    Beck, A.G. (Dept. of Business and Economic Development, Hilo, HI (USA))

    1988-12-01T23:59:59.000Z

    The Hawaiian Community Geothermal Technology Program is unique. Under its auspices, heat and other by-products of Hawaii's high-temperature HGP-A geothermal well and power plant are not wasted. Instead, they form the backbone of a direct-heat grant program that reaches into the local community and encourages community members to develop creative uses for geothermal energy. A by-product of this approach is a broadened local base of support for geothermal energy development. With the experimental and precommercial work completed, most of the original grantees are looking for ways to continue their projects on a commercial scale by studying the economics of using geothermal heat in a full-scale business and researching potential markets. A geothermal mini-park may be built near the research center. In 1988, a second round of projects was funded under the program. The five new projects are: Geothermal Aquaculture Project - an experiment with low-cost propagation of catfish species in geothermally heated tanks with a biofilter; Media Steam Sterilization and Drying - an application of raw geothermal steam to shredded, locally-available materials such as coconut husks, which would be used as certified nursery growing media; Bottom-Heating System Using Geothermal Power for Propagation - a continuation of Leilani Foliage's project from the first round of grants, focusing on new species of ornamental palms; Silica Bronze - the use of geothermal silica as a refractory material in casting bronze artwork; and Electro-deposition of Minerals in Geothermal Brine - the nature and possible utility of minerals deposited from the hot fluid.

  9. Geothermal direct-heat utilization assistance: Quarterly project progress report, January--March 1995

    SciTech Connect (OSTI)

    NONE

    1995-05-01T23:59:59.000Z

    The report summarizes geothermal activities of the Geo-Heat Center at Oregon Institute of Technology for the second quarter of FY-95. It describes 92 contacts with parties during this period related to technical assistance with geothermal direct heat projects. Areas dealt with include geothermal heat pumps, space heating, greenhouses, aquaculture, resources and equipment. Research activities are summarized on geothermal energy cost evaluation, low temperature resource assessment and ground-source heat pump case studies and utility programs. Outreach activities include the publication of a geothermal direct heat Bulletin, dissemination of information, geothermal library, and progress monitor reports on geothermal resources and utilization.

  10. A Geothermal District-Heating System and Alternative Energy Research...

    Open Energy Info (EERE)

    District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title A...

  11. Policymakers' Guidebook for Geothermal Heating and Cooling (Revised) (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-02-01T23:59:59.000Z

    This document provides an overview of the NREL Geothermal Policymakers' Guidebook for Heating and Cooling with information directing people to the Web site for more in-depth information.

  12. Geothermal Technology Breakthrough in Alaska: Harvesting Heat...

    Broader source: Energy.gov (indexed) [DOE]

    Alaska Center for Energy and Power (ACEP). The Energy Department is supporting geothermal exploration at lower temperatures, thanks to a technology breakthrough that allows...

  13. Variation of direct-heat geothermal economics with project size

    SciTech Connect (OSTI)

    Struhsacker, D.W.

    1981-10-01T23:59:59.000Z

    A comparision of the economics of large, intermediate, and small direct-heat goethermal projects is presented. An attempt is made to define which types of direct-heat geothermal projects are most cost-efficient and produce the most energy for the least amount of money. The potential energy contribution of fourteen different sizes of direct heat projects is used to determine the number of projects of a given size required to produce 1 Quad of energy. The cost of developing 1 Quad of direct-heat geothermal energy from large, intermediate, and small projects is compared to the cost of 1 Quad of energy from conventional sources. The engineering and resource parameters controlling project size are defined. The development of large-scale projects is stressed as the way in which direct-heat geothermal energy can make the most significant contribution to the nation's energy requirements. (MJF)

  14. Economic Impact and Job Creation aspects of Geothermal Heat Pumps Don Penn, PE, CGD

    E-Print Network [OSTI]

    , geothermal, geothermal heat pumps and other non-petroleum or coal based energy production" for the Renewable Energy Industry. #12;GEOTHERMAL PRESENTATION 1.REMI is an economic-demographic forecasEconomic Impact and Job Creation aspects of Geothermal Heat Pumps Don Penn, PE, CGD Grapevine

  15. REVIEW OF GEOTHERMAL HEATING AND COOLING OF BUILDINGS C. A. Coles

    E-Print Network [OSTI]

    Coles, Cynthia

    REVIEW OF GEOTHERMAL HEATING AND COOLING OF BUILDINGS C. A. Coles Memorial University of Newfoundland, St. John's, Canada Abstract The exponential growth that has been occurring in the geothermal heat harnessing of low temperature, renewable geothermal energy for hot water heating and heating and cooling

  16. Geothermal Direct-Heat Utilization Assistance - Final Report

    SciTech Connect (OSTI)

    J. W. Lund

    1999-07-14T23:59:59.000Z

    The Geo-Heat Center provided (1) direct-use technical assistance, (2) research, and (3) information dissemination on geothermal energy over an 8 1/2 year period. The center published a quarterly bulletin, developed a web site and maintained a technical library. Staff members made 145 oral presentations, published 170 technical papers, completed 28 applied research projects, and gave 108 tours of local geothermal installations to 500 persons.

  17. Geothermal Heat Pump Profitability in Energy Services

    SciTech Connect (OSTI)

    None

    1997-11-01T23:59:59.000Z

    If geothermal heat pumps (GHPs) are to make a significant mark in the market, we believe that it will be through energy service pricing contracts offered by retailcos. The benefits of GHPs are ideally suited to energy service pricing (ESP) contractual arrangements; however, few retailcos are thoroughly familiar with the benefits of GHPs. Many of the same barriers that have prevented GHPs from reaching their full potential in the current market environment remain in place for retailcos. A lack of awareness, concerns over the actual efficiencies of GHPs, perceptions of extremely high first costs, unknown records for maintenance costs, etc. have all contributed to limited adoption of GHP technology. These same factors are of concern to retailcos as they contemplate long term customer contracts. The central focus of this project was the creation of models, using actual GHP operating data and the experience of seasoned professionals, to simulate the financial performance of GHPs in long-term ESP contracts versus the outcome using alternative equipment. We have chosen two case studies, which may be most indicative of target markets in the competitive marketplace: A new 37,000 square foot office building in Toronto, Ontario; we also modeled a similar building under the weather conditions of Orlando, Florida. An aggregated residential energy services project using the mass conversion of over 4,000 residential units at Ft. Polk, Louisiana. Our method of analyses involved estimating equipment and energy costs for both the base case and the GHP buildings. These costs are input in to a cash flow analysis financial model which calculates an after-tax cost for the base and GHP case. For each case study customers were assumed to receive a 5% savings over their base case utility bill. A sensitivity analysis was then conducted to determine how key variables affect the attractiveness of a GHP investment.

  18. Using geothermal energy to heat a portion of a formation for an in situ heat treatment process

    DOE Patents [OSTI]

    Pieterson, Roelof; Boyles, Joseph Michael; Diebold, Peter Ulrich

    2010-06-08T23:59:59.000Z

    Methods of using geothermal energy to treat subsurface formations are described herein. Methods for using geothermal energy to treat a subsurface treatment area containing or proximate to hydrocarbons may include producing geothermally heated fluid from at least one subsurface region. Heat from at least a portion of the geothermally heated fluid may be transferred to the subsurface treatment area to heat the subsurface treatment area. At least some hydrocarbon fluids may be produced from the formation.

  19. Geothermal Well and Heat Flow Data for the United States (Southern Methodist University (SMU) Geothermal Laboratory)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Blackwell, D.D. and others

    Southern Methodist University makes two databases and several detailed maps available. The Regional Heat Flow Database for the United States contains information on primarily regional or background wells that determine the heat flow for the United States; temperature gradients and conductivity are used to generate heat flow measurements. Information on geology of the location, porosity, thermal conductivity, water table depth, etc. are also included when known. There are usually three data files for each state or region. The first files were generated in 1989 for the data base creating the Decade of North America Geology (DNAG) Geothermal Map. The second set is from 1996 when the data base was officially updated for the Department of Energy. The third set is from 1999 when the Western U.S. High Temperature Geothermal data base was completed. As new data is received, the files continue to be updated. The second major resource is the Western Geothermal Areas Database, a database of over 5000 wells in primarily high temperature geothermal areas from the Rockies to the Pacific Ocean. The majority of the data are from company documents, well logs, and publications with drilling dates ranging from 1960 to 2000. Many of the wells were not previously accessible to the public. Users will need to register, but will then have free, open access to the databases. The contents of each database can be viewed and downloaded as Excel spreadsheets. See also the heat flow maps at http://www.smu.edu/geothermal/heatflow/heatflow.htm

  20. Geothermal potential for commercial and industrial direct heat applications in Salida, Colorado. Final report

    SciTech Connect (OSTI)

    Coe, B.A.; Dick, J.D.; Galloway, M.J.; Gross, J.T.; Meyer, R.T.; Raskin, R.; Zocholl, J.R.

    1982-10-01T23:59:59.000Z

    The Salida Geothermal Prospect (Poncha Hot Springs) was evaluated for industrial and commercial direct heat applications at Salida, Colorado, which is located approximately five miles east of Poncha Hot Springs. Chaffee Geothermal, Ltd., holds the geothermal leases on the prospect and the right-of-way for the main pipeline to Salida. The Poncha Hot Springs are located at the intersection of two major structural trends, immediately between the Upper Arkansas graben and the Sangre de Cristo uplift. Prominent east-west faulting occurs at the actual location of the hot springs. Preliminary exploration indicates that 1600 gpm of geothermal fluid as hot as 250/sup 0/F is likely to be found at around 1500 feet in depth. The prospective existing endusers were estimated to require 5.02 x 10/sup 10/ Btu per year, but the total annual amount of geothermal energy available for existing and future endusers is 28.14 x 10/sup 10/ Btu. The engineering design for the study assumed that the 1600 gpm would be fully utilized. Some users would be cascaded and the spent fluid would be cooled and discharged to nearby rivers. The economic analysis assumes that two separate businesses, the energy producer and the energy distributor, are participants in the geothermal project. The producer would be an existing limited partnership, with Chaffee Geothermal, Ltd. as one of the partners; the distributor would be a new Colorado corporation without additional income sources. Economic evaluations were performed in full for four cases: the Base Case and three alternate scenarios. Alternate 1 assumes a three-year delay in realizing full production relative to the Base Case; Alternate 2 assumes that the geothermal reservoir is of a higher quality than is assumed for the Base Case; and Alternate 3 assumes a lower quality reservoir. 11 refs., 34 figs., 40 tabs.

  1. Geothermal Technologies Office Annual Report 2012

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To: Congestion StudyForecasting.EnergyAlthoughYEAR IN REVIEW Annual

  2. Sustainable Energy Resources for Consumers Webinar on Residential Geothermal Heat Pump Retrofit Transcript

    Broader source: Energy.gov [DOE]

    Transcript for a U.S. Department of Energy Webinar on Dec. 14, 2010, about residential geothermal heat pump retrofits

  3. Market penetration analysis for direct heat geothermal energy applications

    SciTech Connect (OSTI)

    Thomas, R.J.; Nelson, R.A.

    1981-06-01T23:59:59.000Z

    This study is concerned with the estimation of the National geothermal market potential and penetration in direct heat applications for residences and certain industry segments. An important aspect of this study is that the analysis considers both known and anticipated goethermal resources. This allows for an estimation of the longer-range potential for geothermal applications. Thus the approach and results of this study provide new insights and valuable information not obtained from more limited, site-specific types of analyses. Estimates made in this study track geothermal market potential and projected penetration from the present to the year 2020. Private sector commercialization of geothermal energy over this period requires assistance in the identification of markets and market sizes, potential users, and appropriate technical applications.

  4. Geothermal direct-heat utilization assistance. Quarterly report, October--December 1996

    SciTech Connect (OSTI)

    NONE

    1996-12-31T23:59:59.000Z

    This report summarizes geothermal technical assistance, R&D and technology transfer activities of the Geo-Heat Center at Oregon Institute of Technology for the first quarter of FY-97. It describes 174 contracts with parties during this period related to technical assistance with geothermal direct heat projects. Areas dealt with include geothermal heat pumps, space heating, greenhouses, aquaculture, equipment, economics and resources. Research activities are summarized on greenhouse peaking. Outreach activities include the publication of a geothermal direct use Bulletin, dissemination of information, geothermal library, technical papers and seminars, and progress monitor reports on geothermal resources and utilization.

  5. ORNL/TM-2000/80 Geothermal Heat Pumps in K12

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    ORNL/TM-2000/80 Geothermal Heat Pumps in K­12 Schools A Case Study of the Lincoln, Nebraska Government or any agency thereof. #12;ORNL/TM-2000/80 Geothermal Heat Pumps in K­12 Schools A Case Study DE-AC05-00OR22725 #12;Geothermal Heat Pumps in K­12 Schools iii CONTENTS List of Figures

  6. Property:Geothermal/AnnualGenBtuYr | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal PwerPerkins County, Nebraska:PrecourtOid Jump to:Docket Number JumpAnnualGenBtuYr Jump to:

  7. Property:Geothermal/AnnualGenGwhYr | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal PwerPerkins County, Nebraska:PrecourtOid Jump to:Docket Number JumpAnnualGenBtuYr Jump

  8. Human Health Science Building Geothermal Heat Pumps

    Broader source: Energy.gov (indexed) [DOE]

    HUMAN HEALTH SCIENCE BLDG GEO HEAT PUMP SYSTEMS Principal Investigator Source Heat Pumps Demo Projects May 20, 2010 This presentation does not contain any proprietary confidential,...

  9. GeothermalHeat Extraction Anna Przybycin Feliks Nueske Mark Riesland

    E-Print Network [OSTI]

    Kornhuber, Ralf

    : 70% 32.8 m3/d water extraction - Extraction temperature: 12°C = aquifer temperature Injection the cold-water plume reaches the extraction well Is this realistic under practical considerations? ProbablyGeothermal­Heat Extraction Anna Przybycin ­ Feliks Nueske ­ Mark Riesland #12;1) Hydrogeological

  10. Geothermal direct-heat utilization assistance. Quarterly project progress report, January--March 1996

    SciTech Connect (OSTI)

    NONE

    1996-05-01T23:59:59.000Z

    This report summarizes geothermal technical assistance, R&D, and technology transfer activities of the Geo-Heat Center. It describes 95 contacts with parties during this period related to technical assistance with goethermal direct heat projects. Areas dealt with include geothermal heat pumps, space heating, greenhouses, aquaculture, equipment, economics, and resources. Research activities are summarized on geothermal district heating system cost evaluation and silica waste utilization project. Outreach activities include publication of a geothermal direct use Bulletin, dissemination of information, goethermal library, technical papers and seminars, and progress monitor reports on geothermal resources and utilization.

  11. Municipal geothermal heat utilization plan for Glenwood Springs, Colorado

    SciTech Connect (OSTI)

    Not Available

    1980-12-31T23:59:59.000Z

    A study has been made of the engineering and economic feasibility of utilizing the geothermal resource underlying Glenwood Springs Colorado, to heat a group of public buildings. The results have shown that the use of geothermal heat is indeed feasible when compared to the cost of natural gas. The proposed system is composed of a wellhead plate heat exchanger which feeds a closed distribution loop of treated water circulated to the buildings which form the load. The base case system was designed to supply twice the demand created by the seven public buildings in order to take advantage of some economies of scale. To increase the utilization factor of the available geothermal energy, a peaking boiler which burns natural gas is recommended. Disposal of the cooled brine would be via underground injection. Considerable study was done to examine the impact of reduced operating temperature on the existing heating systems. Several options to minimize this problem were identified. Economic analyses were completed to determine the present values of heat from the geothermal system and from the present natural gas over a 30 year projected system life. For the base case savings of over $1 million were shown. Sensitivities of the economics to capital cost, operating cost, system size and other parameters were calculated. For all reasonable assumptions, the geothermal system was cheaper. Financing alternatives were also examined. An extensive survey of all existing data on the geology of the study has led to the prediction of resource parameters. The wellhead temperature of produced fluid is suspected to lie between 140 and 180/sup 0/F (60 and 82/sup 0/C). Flowrates may be as high as 1000 gpm (3800 liters per minute) from a reservoir formation that is 300 ft (90 m) thick beginning about 500 ft (150 m) below the suggested drill site in the proposed Two Rivers Park.

  12. Geothermal Resources Council Annual Meeting - Doug Hollett Presentation,

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To: Congestion StudyForecasting.EnergyAlthough geothermal heat

  13. Human Health Science Building Geothermal Heat Pumps

    Broader source: Energy.gov [DOE]

    Project objectives: Construct a ground sourced heat pump, heating, ventilation, and air conditioning system for the new Oakland University Human Health Sciences Building utilizing variable refrigerant flow (VRF) heat pumps. A pair of dedicated outdoor air supply units will utilize a thermally regenerated desiccant dehumidification section. A large solar thermal system along with a natural gas backup boiler will provide the thermal regeneration energy.

  14. Thermally conductive cementitious grout for geothermal heat pump systems

    DOE Patents [OSTI]

    Allan, Marita (Old Field, NY)

    2001-01-01T23:59:59.000Z

    A thermally conductive cement-sand grout for use with a geothermal heat pump system. The cement sand grout contains cement, silica sand, a superplasticizer, water and optionally bentonite. The present invention also includes a method of filling boreholes used for geothermal heat pump systems with the thermally conductive cement-sand grout. The cement-sand grout has improved thermal conductivity over neat cement and bentonite grouts, which allows shallower bore holes to be used to provide an equivalent heat transfer capacity. In addition, the cement-sand grouts of the present invention also provide improved bond strengths and decreased permeabilities. The cement-sand grouts can also contain blast furnace slag, fly ash, a thermoplastic air entraining agent, latex, a shrinkage reducing admixture, calcium oxide and combinations thereof.

  15. Oregon Underground Injection Control Registration Geothermal Heating

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri:Energy Information FeesInformation

  16. Geothermal direct-heat utilization assistance. Quarterly progress report, April--June 1993

    SciTech Connect (OSTI)

    Not Available

    1993-08-01T23:59:59.000Z

    Progress is reported on the following R&D activities: evaluation of lineshaft turbine pump problems, geothermal district heating marketing strategy, and greenhouse peaking analysis. Other activities are reported on technical assistance, technology transfer, and the geothermal progress monitor.

  17. ORNL/TM-2008/232 Geothermal (Ground-Source) Heat Pumps

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    ORNL/TM-2008/232 Geothermal (Ground-Source) Heat Pumps: Market Status, Barriers to Adoption Division Sponsored by EERE Geothermal Technologies Program U.S. Department of Energy #12;Page iii DOCUMENT

  18. ORNL/TM-2008/232 Geothermal (Ground-Source) Heat Pumps

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    ORNL/TM-2008/232 Geothermal (Ground-Source) Heat Pumps: Market Status, Barriers to Adoption Division Sponsored by EERE Geothermal Technologies Program U.S. Department of Energy #12; Page iii

  19. Geothermal direct-heat utilization assistance. Federal Assistance Program, Quarterly project progress report, October--December 1994

    SciTech Connect (OSTI)

    Not Available

    1994-12-31T23:59:59.000Z

    The report summarizes activities of the Geo-Heat Center (GHC) at Oregon Institute of Technology for the first quarter of Fiscal Year 1995. It describes contacts with parties during this period related to assistance with geothermal direct heat projects. Areas dealt with include geothermal heat pumps, space heating, greenhouses, aquaculture, resources and equipment. Research is also being conducted on geothermal energy cost evaluation, low-temperature geothermal resource assessment, use of silica waste from the Cerro Prieto geothermal field as construction materials and geothermal heat pumps. Outreach activities include the publication of a quarterly Bulletin on direct heat applications and dissemination of information on low-temperature geothermal resources and utilization.

  20. Heat Flow, Heat Transfer And Lithosphere Rheology In Geothermal...

    Open Energy Info (EERE)

    heat flow values as high as several watts per meter squared can be found. Systematic interpretation of heat flow patterns sheds light on heat transfer mechanisms at depth on...

  1. Geothermal heating enhances atmospheric asymmetries on synchronously rotating planets

    E-Print Network [OSTI]

    Haqq-Misra, Jacob

    2014-01-01T23:59:59.000Z

    Earth-like planets within the liquid water habitable zone of M type stars may evolve into synchronous rotators. On these planets, the sub-stellar hemisphere experiences perpetual daylight while the opposing anti-stellar hemisphere experiences perpetual darkness. Because the night-side hemisphere has no direct source of energy, the air over this side of the planet is prone to freeze out and deposit on the surface, which could result in atmospheric collapse. However, general circulation models (GCMs) have shown that atmospheric dynamics can counteract this problem and provide sufficient energy transport to the anti-stellar side. Here we use an idealized GCM to consider the impact of geothermal heating on the habitability of synchronously rotating planets. Geothermal heating may be expected due to tidal interactions with the host star, and the effects of geothermal heating provide additional habitable surface area and may help to induce melting of ice on the anti-stellar hemisphere. We also explore the persisten...

  2. Imperial County geothermal development semi-annual report, October 1, 1980-March 31, 1981

    SciTech Connect (OSTI)

    Not Available

    1981-01-01T23:59:59.000Z

    The current geothermal progress in Imperial County is reported. Three areas are reported: Geothermal Administration, Geothermal Planning, and other Geothermal Activities. Geothermal Administration addresses the status of the Imperial Valley Environmental Project (IVEP) transfer, update of the Geothermal Resource Center, and findings of Geothermal field inspections. In addition, the cooperative efforts between industry and the County; Master EIR for the Salton Sea KGRA and the resurveying of the subsidence detection network are covered. Geothermal Planning addresses a Board of Supervisor action on the Union Oil Geothermal Production Permit for 16 wells in the Salton Sea KGRA and a permit for Southern California Edison 10 megawatts power plant in the Salton Sea KGRA. Planning Commission action covers: Amendment of Magma Power's 49 megawatts Geothermal Production Permit to 28 megawatt power plant and relocation of the plant and wells within the Salton Sea KGRA; Exploration permit to Occidental Geothermal for four exploratory wells in East Brawley; Geothermal Production Permit to Southern California Edison to operate a 10 megawatt power plant in the Salton Sea KGRA; and Geothermal production permit to Union Oil for 16 production-injection wells in the Salton Sea KGRA. Lastly, EIR exemptions to CEQA were granted to Chevron for 70 shallow temperature observation holes and Union for fifteen. Other Geothermal Activity addresses the County Direct Heat Development study; the solicitation for district heating and cooling proposals; the new Geothermal Class II-1 disposal site; the DOE Region IX meeting in Tucson; and USGA designating a new KGRA, the East Brawley KGRA, the Westmorland KGRA, and revising the southern border of the Salton Sea KGRA.

  3. City of Twenty-Nine Palms Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Palms Sector Geothermal energy Type Space Heating Location Twenty-Nine Palms, California Coordinates 34.1355582, -116.0541689 Loading map... "minzoom":false,"mappingservice":"...

  4. Enhanced Geothermal Systems (EGS) with CO2as Heat Transmission Fluid

    Broader source: Energy.gov [DOE]

    The overall objective of the research is to explore the feasibility of operating enhanced geothermal systems (EGS) with CO2as heat transmission fluid.

  5. Geothermal direct-heat utilization assistance. Quarterly project progress report, July--September 1997

    SciTech Connect (OSTI)

    NONE

    1997-10-01T23:59:59.000Z

    This report summarizes geothermal technical assistance, R and D and technology transfer activities of the Geo-Heat Center at Oregon Institute of Technology for the fourth quarter of FY-97 (July--September 1997). It describes 213 contacts with parties during this period related to technical assistance with geothermal direct heat projects. Areas dealt with include requests for general information including maps, geothermal heat pumps, resource and well data, space heating and cooling, greenhouses, acquaculture, equipment, district heating, resorts and spas, and industrial applications. Research activities include the completion of a Comprehensive Greenhouse Developer Package. Work accomplished on the revision of the Geothermal Direct Use Engineering and Design Guidebook are discussed. Outreach activities include the publication of the Quarterly Bulletin (Vol. 18, No. 3), dissemination of information mainly through mailings of publications, geothermal library acquisition and use, participation in workshops, short courses, and technical meetings by the staff, and progress monitor reports on geothermal activities.

  6. Geothermal development. Semi-annual report, October 1, 1980-March 31, 1981

    SciTech Connect (OSTI)

    Not Available

    1981-03-31T23:59:59.000Z

    Three areas are reported: geothermal administration, geothermal planning, and other geothermal activities. Administration covers the status of the Imperial Valley Environmental Project transfer, update of the Geothermal Resource Center, and findings of the geothermal field inspections. Planning addresses Board of Supervisor actions, Planning Commission actions, notice of exemptions, and the master Environmental Impact Report for Salton Sea. The other activity includes the County Direct Heat Development study; the solicitation for district heating and cooling proposals; the new Geothermal Class II-1 disposal site; the DOE Region IX meeting in Tucson; and USGA designating a new KGRA, the East Brawley KGRA, the Westmoreland KGRA, and revising the southern border of the Salton Sea KGRA. (MHR)

  7. San Bernardino District Heating District Heating Low Temperature Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to:RoscommonSBYSalton Sea Geothermal Area JumpPlanAugustineSan

  8. Pagosa Springs District Heating District Heating Low Temperature Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri:EnergyOssian, New York:Ozark,Pacific GasPage" ShowingFacility |

  9. Philip District Heating District Heating Low Temperature Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal PwerPerkins County, Nebraska: Energy Resources JumpPfhotonika Jump to:

  10. Midland District Heating District Heating Low Temperature Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio:Menomonee| OpenMickeyDelaware: Energy ResourcesTexas:

  11. Geothermal direct-heat utilization assistance. Quarterly project progress report, April--June 1993

    SciTech Connect (OSTI)

    Lienau, P.

    1993-06-01T23:59:59.000Z

    Technical assistance was provided to 60 requests from 19 states. R&D progress is reported on: evaluation of lineshaft turbine pump problems, geothermal district heating marketing strategy, and greenhouse peaking analysis. Two presentations and one tour were conducted, and three technical papers were prepared. The Geothermal Progress Monitor reported: USGS Forum on Mineral Resources, Renewable Energy Tax Credits Not Working as Congress Intended, Geothermal Industry Tells House Panel, Newberry Pilot Project, and Low-Temperature Geothermal Resources in Nevada.

  12. Article published in Geothermics 47 (2013) 69-79 http://dx.doi.org/10.1016/j.geothermics.2013.02.005 1 Geothermal contribution to the energy mix of a heating

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    .02.005 1 Geothermal contribution to the energy mix of a heating network when using Aquifer Thermal Energy and providing energy to a new low-temperature district heating network heating 7,500 housing-equivalents. Non-geothermal of this geothermal system to meet the load is studied in order to evaluate the time dependent energy mix

  13. NREL: Learning - Geothermal Heat Pump Basics

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid Integration NREL isDataWorking withFuel Cell VehicleHeat Pump

  14. Marshall County REMC- Geothermal and Add-on Heat Pump Rebate Program

    Broader source: Energy.gov [DOE]

    Marshall County REMC provides a rebate for its residential customers for the purchase and installation of an add-on heat pump and/or a geothermal heat pump. Customers can receive $300 for the...

  15. The Earth-Coupled or Geothermal Heat Pump Air Conditioning System

    E-Print Network [OSTI]

    Wagers, H. L.; Wagers, M. C.

    1985-01-01T23:59:59.000Z

    " and next at proper home insulation, window coverings, etc. The other electrical appliances in the home use relatively minor amounts of electricity compared to the air conditioning and hot water heating system. This paper will describe the geothermal heat...

  16. Kosciusko REMC- Residential Geothermal and Air-source Heat Pump Rebate Program

    Broader source: Energy.gov [DOE]

    Kosciusko REMC offers rebates (as bill credits) to residential members for the purchase and installation of high efficiency air-source heat pumps, geothermal heat pumps, and electric water heaters....

  17. Geothermal Heat Pump System for the New 500-bed 200,000 SF Student...

    Broader source: Energy.gov (indexed) [DOE]

    Heat Pump System for the New 500-bed 200,000 SF Student Housing Project at the University at Albanys Main Campus Geothermal Heat Pump System for the New 500-bed 200,000 SF...

  18. Geothermal direct-heat utilization assistance. Quarterly project progress report, July 1996--September 1996. Federal Assistance Program

    SciTech Connect (OSTI)

    Lienau, P.

    1996-11-01T23:59:59.000Z

    This report summarizes geothermal technical assistance, R&D and technology transfer activities of the Geo-Heat Center at Oregon Institute of Technology for the fourth quarter of FY-96. It describes 152 contacts with parties during this period related to technical assistance with geothermal direct heat projects. Areas dealt with include geothermal heat pumps, space heating, greenhouses, aquaculture, equipment, economics and resources. Research activities are summarized on greenhouse peaking. Outreach activities include the publication of a geothermal direct use Bulletin, dissemination of information, geothermal library, technical papers and seminars, and progress monitor reports on geothermal resources and utilization.

  19. Microhole arrays for improved heat mining from enhanced geothermal systems

    E-Print Network [OSTI]

    Finsterle, S.

    2014-01-01T23:59:59.000Z

    lowers reservoir explo- ration, characterization costs. Oilthe characterization of the geothermal reservoir properties.

  20. The Eighth Annual Interagency Geothermal Coordinating Council Report, Fiscal Year 1983

    SciTech Connect (OSTI)

    None

    1984-04-03T23:59:59.000Z

    The U.S. Interagency Geothermal Coordinating Council was a multi-agency group charged with identifying and reducing barriers to geothermal energy development in the U.S. Many of the issues covered related to regulations for and progress in the leasing of Federal lands in the West for power development. The IGCC reports are important sources of historical information. Table 5 here shows competitive leasing of federal lands for geothermal uses, by state, for 1974-1976, and annually for 1977 through 1983. By the end of FY 1983, 972,492 acres were under competitive lease. Bonus bids collected from these sales totaled more than $77 million. (DJE 2005)

  1. Environmental Assessment: geothermal direct heat project, Marlin, Texas

    SciTech Connect (OSTI)

    Not Available

    1980-08-01T23:59:59.000Z

    The Federal action addressed by this Environmental Assessment (EA) is joint funding the retrofitting of a heating and hot water system in a hospital at Marlin, Texas, with a geothermal preheat system. The project will be located within the existing hospital boiler room. One supply well was drilled in an existing adjacent parking lot. It was necessary to drill the well prior to completion of this environmental assessment in order to confirm the reservoir and to obtain fluids for analysis in order to assess the environmental effects of fluid disposal. Fluid from operation will be disposed of by discharging it directly into existing street drains, which will carry the fluid to Park Lake and eventually the Brazos River. Fluid disposal activities are regulated by the Texas Railroad Commission. The local geology is determined by past displacements in the East Texas Basin. Boundaries are marked by the Balcones and the Mexia-Talco fault systems. All important water-bearing formations are in the cretaceous sedimentary rocks and are slightly to highly saline. Geothermal fluids are produced from the Trinity Group; they range from approximately 3600 to 4000 ppM TDS. Temperatures are expected to be above 64/sup 0/C (147/sup 0/F). Surface water flows southeastward as a part of the Brazos River Basin. The nearest perennial stream is the Brazos River 5.6 km (3.5 miles) away, to which surface fluids will eventually discharge. Environmental impacts of construction were small because of the existing structures and paved areas. Construction run-off and geothermal flow-test fluid passed through a small pond in the city park, lowering its water quality, at least temporarily. Construction noise was not out of character with existing noises around the hospital.

  2. Recovery Act - Geothermal Technologies Program: Ground Source Heat Pumps Final Scientific/Technical Report

    SciTech Connect (OSTI)

    Nick Rosenberry, Harris Companies

    2012-05-04T23:59:59.000Z

    A large centralized geothermal heat pump system was installed to provide ice making, space cooling, space heating, process water heating, and domestic hot water heating for an ice arena in Eagan Minnesota. This paper provides information related to the design and construction of the project. Additionally, operating conditions for 12 months after start-up are provided.

  3. Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade

    SciTech Connect (OSTI)

    Liu, Xiaobing [Oak Ridge National Lab] [Oak Ridge National Lab

    2014-06-01T23:59:59.000Z

    High initial cost and lack of public awareness of ground source heat pump (GSHP) technology are the two major barriers preventing rapid deployment of this energy saving technology in the United States. Under the American Recovery and Reinvestment Act (ARRA), 26 GSHP projects have been competitively selected and carried out to demonstrate the benefits of GSHP systems and innovative technologies for cost reduction and/or performance improvement. This paper highlights findings of a case study of one of the ARRA-funded GSHP demonstration projects, which is a heating only central GSHP system using shallow aquifer as heat source and installed at a warehouse and truck bay at Kalispell, MT. This case study is based on the analysis of measured performance data, utility bills, and calculations of energy consumptions of conventional central heating systems for providing the same heat outputs as the central GSHP system did. The evaluated performance metrics include energy efficiency of the heat pump equipment and the overall GSHP system, pumping performance, energy savings, carbon emission reductions, and cost-effectiveness of GSHP system compared with conventional heating systems. This case study also identified areas for reducing uncertainties in performance evaluation, improving operational efficiency, and reducing installed cost of similar GSHP systems in the future. Publication of ASHRAE at the annual conference in Seattle.

  4. Geothermal Heat Pumps: Market Status, Barriers to Adoption, and...

    Open Energy Info (EERE)

    Sector: Energy Focus Area: Renewable Energy, Geothermal Topics: Market analysis, Technology characterizations Resource Type: Guidemanual Website: www.ornl.govscieesetsd...

  5. ANALYSIS O F HEAT TRANSFER AND ENERGY RECOVERY I N FRACTURED GEOTHERMAL RESERVOIRS

    E-Print Network [OSTI]

    Stanford University

    SGP-TR-31 ANALYSIS O F HEAT TRANSFER AND ENERGY RECOVERY I N FRACTURED GEOTHERMAL RESERVOIRS by R . . . . . . . . . . . . . . . . . . . . . 64 iii #12;3.6 Energy Balance of a Fractured Geothermal Reservoir . . . 3.6.1 Reservoir Rock Energy of Experimental Apparatus . . . . . . . . . 6 2.1.1 The Reservoir . . . . . . . . . . . . . . . . . . 6 2

  6. Geothermally heated Chamber of Commerce offices at Marlin, Texas. Final report

    SciTech Connect (OSTI)

    Not Available

    1981-07-31T23:59:59.000Z

    The use of an existing, low temperature, geothermal resource to heat the Chamber of Commerce offices in Marlin, Texas is described. A secondary purpose of the project is to attract new industries and businesses to Marlin via this alternate energy show-piece demonstration of a simple and practical application of Texas' low temperature geothermal resource.

  7. Interagency Geothermal Coordinating Council Annual Report for Fiscal Year 1989

    SciTech Connect (OSTI)

    None

    1990-01-02T23:59:59.000Z

    The U.S. Interagency Geothermal Coordinating Council was a multi-agency group charged with identifying and reducing barriers to geothermal energy development in the U.S. Many of the issues covered related to regulations for and progress in the leasing of Federal lands in the West for power development. The IGCC reports are important sources of historical information. Table 1 lists significant events in the history of use of geothermal energy in the U.S., starting in1884. That is useful for tracking which Federal departments and agencies managed aspects of this work over time. Table 2 gives a complete accounting for all Federal outlays for geothermal energy development for FY 1979 - 1989, including non-DOE outlays. Table 3 shows the status of the U.S. Geothermal Loan Guarantee Program at end of FY 1989: of the $500 million authorized, $285 million was committed to eight projects, and about $40 million had been paid out on project defaults. An additional $101 million had been repaid by the borrowers. (DJE 2005)

  8. The role of the geothermal heat flux in driving the abyssal ocean circulation

    E-Print Network [OSTI]

    Mashayek, A.

    The results presented in this paper demonstrate that the geothermal heat flux (GHF) from the solid Earth into the ocean plays a non-negligible role in determining both abyssal stratification and circulation strength. Based ...

  9. Development of the Geothermal Heat Pump Market in China; Renewable Energy in China

    SciTech Connect (OSTI)

    Not Available

    2006-03-01T23:59:59.000Z

    This case study is one in a series of Success Stories on developing renewable energy technologies in China for a business audience. It focuses on the development of the geothermal heat pump market in China.

  10. Geothermal Technologies Office Releases 2012 Annual Report | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), Geothermal Technologies Program (GTP) |PrincipalEnergy Geothermal

  11. Systems study of drilling for installation of geothermal heat pumps

    SciTech Connect (OSTI)

    Finger, J.T.; Sullivan, W.N.; Jacobson, R.D.; Pierce, K.G.

    1997-09-01T23:59:59.000Z

    Geothermal, or ground-source, heat pumps (GHP) are much more efficient than air-source units such as conventional air conditioners. A major obstacle to their use is the relatively high initial cost of installing the heat-exchange loops into the ground. In an effort to identify drivers which influence installation cost, a number of site visits were made during 1996 to assess the state-of-the-art in drilling for GHP loop installation. As an aid to quantifying the effect of various drilling-process improvements, we constructed a spread-sheet based on estimated time and material costs for all the activities required in a typical loop-field installation. By substituting different (improved) values into specific activity costs, the effect on total project costs can be easily seen. This report contains brief descriptions of the site visits, key points learned during the visits, copies of the spread-sheet, recommendations for further work, and sample results from sensitivity analysis using the spread-sheet.

  12. Geothermal Drilling and Completion Technology Development Program Annual Progress Report

    SciTech Connect (OSTI)

    Varnado, S. G.

    1981-03-01T23:59:59.000Z

    The high cost of drilling and completing geothermal wells is an impediment to the timely development of geothermal resources in the US. The Division of Geothermal Energy (DGE) of the Department of Energy (DOE) has initiated a development program aimed at reducing well costs through improvements in the technology used to drill and complete geothermal wells. Sandia National Laboratories (SNL) has been selected to manage this program for DOE/DGE. Based on analyses of existing well costs, cost reduction goals have been set for the program. These are to develop the technology required to reduce well costs by 25% by 1983 and by 50% by 1987. To meet these goals, technology development in a wide range of areas is required. The near-term goal will be approached by improvements in conventional, rotary drilling technology. The long-term goal will require the development of an advanced drilling and completion system. Currently, the program is emphasizing activities directed at the near-term cost reduction goal, but increased emphasis on advanced system development is anticipated as time progresses. The program is structured into six sub-elements: Drilling Hardware, Drilling Fluids, Completion Technology, Lost Circulation Control Methods, Advanced Drilling Systems, and Supporting Technology. Technology development in each of these areas is conducted primarily through contracts with private industries and universities. Some projects are conducted internally by Sandia. This report describes the program, status, and results of ongoing R and D within the program for the 1980 fiscal year.

  13. Geothermal District Heating System City of Klamath Falls | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJumpGermanFifeGEXAGarnetInformation District Heating System

  14. Sandia National Laboratories: Geothermal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Geothermal Geothermal Energy & Drilling Technology On November 10, 2010, in Geothermal energy is an abundant energy resource that comes from tapping the natural heat of molten rock...

  15. Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade

    Broader source: Energy.gov [DOE]

    Project Will Take Advantage of Abundant Water in Shallow Aquifer. Demonstrate Low Temperature GSHP System Design. Provides a Baseline for Local Industrial Geothermal Project Costs and Benefits.

  16. Geothermal: Sponsored by OSTI -- Downhole heat exchanger system...

    Office of Scientific and Technical Information (OSTI)

    Museum, Brannon Cottage, and the Community Center, Calistoga, CA. Feasibility study Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search...

  17. Geothermal direct-heat utilization assistance. Quarterly project progress report, October--December 1993

    SciTech Connect (OSTI)

    Not Available

    1993-12-31T23:59:59.000Z

    This report consists of brief summaries of the activities of the Geo-Heat Center during the report period. Technical assistance was given to requests from 20 states in the following applications: space and district heating; geothermal heat pumps; greenhouses; aquaculture; industrial plants; electric power; resource/well; equipment; and resort/spa. Research and development activities progressed on (1) compilation of data on low-temperature resources and (2) evaluation of groundwater vs. ground-coupled heat pumps. Also summarized are technology transfer activities and geothermal progress monitoring activities.

  18. Geothermal direct-heat utilization assistance. Quarterly project progress report, January--March 1994

    SciTech Connect (OSTI)

    Not Available

    1994-05-01T23:59:59.000Z

    The Geo-Heat Center provides technical assistance on geothermal direct heat applications to developers, consultants and the public which could include: data and information on low-temperature (< 1500 C) resources, space and district heating, geothermal heat pumps, greenhouses, aquaculture, industrial processes and other technologies. This assistance could include preliminary engineering feasibility studies, review of direct-use project plans, assistance in project material and equipment selection, analysis and solutions of project operating problems, and information on resources and utilization. The following are brief descriptions of technical assistance provided during the second quarter of the program.

  19. Direct utilization of geothermal energy for space and water heating at Marlin, Texas. Final report

    SciTech Connect (OSTI)

    Conover, M.F.; Green, T.F.; Keeney, R.C.; Ellis, P.F. II; Davis, R.J.; Wallace, R.C.; Blood, F.B.

    1983-05-01T23:59:59.000Z

    The Torbett-Hutchings-Smith Memorial Hospital geothermal heating project, which is one of nineteen direct-use geothermal projects funded principally by DOE, is documented. The five-year project encompassed a broad range of technical, institutional, and economic activities including: resource and environmental assessments; well drilling and completion; system design, construction, and monitoring; economic analyses; public awareness programs; materials testing; and environmental monitoring. Some of the project conclusions are that: (1) the 155/sup 0/F Central Texas geothermal resource can support additional geothermal development; (2) private-sector economic incentives currently exist, especially for profit-making organizations, to develop and use this geothermal resource; (3) potential uses for this geothermal resource include water and space heating, poultry dressing, natural cheese making, fruit and vegetable dehydrating, soft-drink bottling, synthetic-rubber manufacturing, and furniture manufacturing; (4) high maintenance costs arising from the geofluid's scaling and corrosion tendencies can be avoided through proper analysis and design; (5) a production system which uses a variable-frequency drive system to control production rate is an attractive means of conserving parasitic pumping power, controlling production rate to match heating demand, conserving the geothermal resource, and minimizing environmental impacts.

  20. Geothermal heat pumps at Fort Polk: Early results

    SciTech Connect (OSTI)

    Hughes, P.J.; Shonder, J.A.

    1996-12-31T23:59:59.000Z

    At Fort Polk, LA an entire city (4,003 military family housing units) is being converted to geothermal heat pumps (GHP) under a performance contract. At the same time other efficiency measures such as compact fluorescent lights (CFLs), low-flow water outlets, and attic insulation are being installed. If these contracts and this technology are to be used widely in US Department of Defense (DoD) facilities and other public buildings, better data from actual projects is the key. Being the first GHP project of this type and size, Fort Polk proved to be very challenging for all concerned. To get from RFP to start of construction took several years. This hard work by others created a once-in-a-lifetime opportunity to address many of the due diligence issues that delayed the Fort Polk project. So that future projects can move faster, an evaluation has been undertaken to address the following barriers: absence of a documented large-scale demonstration of GHP energy, demand, and maintenance savings (a barrier to acceptance by federal customers, performance contractors, and investors); newness of large-scale facility capital renewal procurements at federal facilities under energy savings performance contracts (ESPCs) or traditional appropriations (lack of case studies); and variability in current GHP design tools (increases risks and costs for federal customers, performance contractors, investors and designers). This paper presents early energy and demand savings results based on data collection through January 1996.

  1. Internal Technical Report, 1981 Annual Report, An Analysis of the Response of the Raft River Geothermal Site Monitor Wells

    SciTech Connect (OSTI)

    Thurow, T.L.; Large, R.M.; Allman, D.W.; Tullis, J.A.; Skiba, P.A.

    1982-04-01T23:59:59.000Z

    A groundwater monitoring program has been established on the Raft River Geothermal Site since 1978. The objective of this program is to document possible impacts that may be caused by geothermal production and injection on the shallow aquifers used for culinary and irrigation purposes. This annual progress report summarizes data from 12 monitor wells during 1981. These data are compared with long-term trends and are correlated with seasonal patterns, irrigation water use and geothermal production and testing. These results provide a basis for predicting long-term impacts of sustained geothermal production and testing. To date, there has been no effect on the water quality of the shallow aquifers.

  2. Geothermal heating from Pinkerton Hot Springs at Colorado Timberline Academy, Durango, Colorado. Final technical report

    SciTech Connect (OSTI)

    Allen, C.C.; Allen, R.W.; Beldock, J.

    1981-11-08T23:59:59.000Z

    The efforts to establish a greater pool of knowledge in the field of low temperature heat transfer for the application of geothermal spring waters to space heating are described. A comprehensive set of heat loss experiments involving passive radiant heating panels is conducted and the results presented in an easily interpretable form. Among the conclusions are the facts that heating a 65 to 70 F/sup 0/ space with 90 to 100 F/sup 0/ liquids is a practical aim. The results are compared with the much lower rates published in the American Society of Heating Refrigeration and Air Conditioning Engineers SYSTEMS, 1976. A heat exchange chamber consisting of a 1000 gallon three compartment, insulated and buried tank is constructed and a control and pumping building erected over the tank. The tank is intended to handle the flow of geothermal waters from Pinkerton Hot Springs at 50 GPM prior to the wasting of the spring water at a disposal location. Approximately 375,000 Btu per hour should be available for heating assuming a 15 F/sup 0/ drop in water temperature. A combination of the panel heat loss experiments, construction of the heat exchange devices and ongoing collection of heat loss numbers adds to the knowledge available to engineers in sizing low temperature heat systems, useful in both solar and geothermal applications where source temperature may be often below 110 F/sup 0/.

  3. Geothermal Energy R&D Program Annual Progress Report Fiscal Year 1993

    SciTech Connect (OSTI)

    None

    1994-04-01T23:59:59.000Z

    In this report, the DOE Geothermal Program activities were split between Core Research and Industrial Development. The technical areas covered are: Exploration Technology, Drilling Technology, Reservoir Technology (including Hot Dry Rock Research and The Geyser Cooperation), and Conversion Technology (power plants, materials, and direct use/direct heat). Work to design the Lake County effluent pipeline to help recharge The Geysers shows up here for the first time. This Progress Report is another of the documents that are reasonable starting points in understanding many of the details of the DOE Geothermal Program. (DJE 2005)

  4. Heat flow studies, Coso Geothermal Area, China Lake, California...

    Open Energy Info (EERE)

    is useless for calculating the geothermal gradients. This is due to the effects of solar radiation at the surface of the earth. Authors Combs and J. Published Publisher Not...

  5. Julian, B.R. and G.R. Foulger, Improved Methods for Mapping Permeability and Heat sources in Geothermal Areas using Microearthquake Data, Thirty-Fifth Workshop on Geothermal Reservoir Engineering, Stanford University,

    E-Print Network [OSTI]

    Foulger, G. R.

    Systems (EGS) experiments and other geothermal operations. With support from the Dept. of Energy, we in Geothermal Areas using Microearthquake Data, Thirty-Fifth Workshop on Geothermal Reservoir Engineering and Heat sources in Geothermal Areas using Microearthquake Data Bruce R. Julian§ U. S. Geological Survey

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

    SciTech Connect (OSTI)

    Sullivan, W.N.

    1997-11-01T23:59:59.000Z

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

  7. Union County - La Grande, Oregon geothermal district heating: feasibility assessment. Final report

    SciTech Connect (OSTI)

    Jenkins, H. II; Giddings, M.; Hanson, P.

    1982-09-01T23:59:59.000Z

    This report presents an assessment of geothermal district heating in the City of La Grande, Oregon. Eight study area districts were analyzed to determine their economic feasibility. Results from the analyses conclude that certain districts within the City of La Grande are economically feasible if certain assumptions are correct. Development of geothermal district heating for these areas would provide direct energy and dollar savings to the building owners and would also provide direct and indirect benefits to low and moderate income households within the City.

  8. Geothermal Technology Breakthrough in Alaska: Harvesting Heat below Boiling

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2: FinalOffers3.pdf0-45.pdf0 Budget FossilGeothermal TechnologiesGeothermal

  9. Klamath Apartment Buildings (13) Space Heating Low Temperature Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Kizildere I

  10. Klamath Churches (5) Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Kizildere IOpen Energy

  11. Klamath County Jail Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Kizildere IOpen

  12. Klamath County Shops Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Kizildere IOpenOpen

  13. Klamath Residence (500) Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home KizildereKlamath

  14. Klamath Schools (7) Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home KizildereKlamathOpen

  15. Pinkerton Hot Springs Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal PwerPerkins County, Nebraska: Energy ResourcesPicketGeothermalPinecrest,NorthPink, Oklahoma:Open

  16. Merle West Medical Center Space Heating Low Temperature Geothermal Facility

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio:Menomonee Falls,Mccoy GeothermalEnergieprojekte GmbHMerk Solar|

  17. Geothermal direct-heat utilization assistance. Federal Assistance Program quarterly project progress report, April 1--June 30, 1998

    SciTech Connect (OSTI)

    NONE

    1998-07-01T23:59:59.000Z

    This report summarizes geothermal technical assistance, R and D and technology transfer activities of the Geo-Heat Center at Oregon Institute of Technology for the third quarter of FY98 (April--June, 1998). It describes 231 contacts with parties during this period related to technical assistance with geothermal direct heat projects. Areas dealt with included requests for general information including material for high school and university students, and material on geothermal heat pumps, resource and well data, spacing heating and cooling, greenhouses, aquaculture, equipment, district heating, resorts and spas, industrial applications, snow melting and electric power. Research activities include work on model construction specifications for line shaft submersible pumps and plate heat exchangers, and a comprehensive aquaculture developers package. A brochure on Geothermal Energy in Klamath County was developed for state and local tourism use. Outreach activities include the publication of the Quarterly Bulletin (Vol. 19, No. 2) with articles on research at the Geo-Heat Center, sustainability of geothermal resources, injection well drilling in Boise, ID and a greenhouse project in the Azores. Other outreach activities include dissemination of information mainly through mailings of publications, tours of local geothermal uses, geothermal library acquisitions and use, participation in workshops, short courses and technical meetings by the staff, and progress monitor reports on geothermal activities.

  18. Geothermal Reservoir Engineering Research. Fourth annual report, October 1, 1983-September 30, 1984

    SciTech Connect (OSTI)

    Ramey, H.J. Jr.; Kruger, P.; Horne, R.N.; Brigham, W.E.; Miller, F.G.

    1984-09-01T23:59:59.000Z

    Reservoir definition research consisted of well test analysis and bench-scale experiments. Well testing included both single-well pressure drawdown and buildup testing, and multiple-well interference testing. The development of new well testing methods continued to receive major emphasis during the year. Work included a project on multiphase compressibility, including the thermal content of the rock. Several projects on double-porosity systems were completed, and work was done on relative-permeability. Heat extraction from rock will determine the long-term response of geothermal reservoirs to development. The work in this task area involved a combination of physical and mathematical modeling of heat extraction from fractured geothermal reservoirs. International cooperative research dealt with adsorption of water on reservoir cores, the planning of tracer surveys, and an injection and tracer test in the Los Azufres fields. 32 refs.

  19. A survey of geothermal process heat applications in Guatemala: An engineering survey

    SciTech Connect (OSTI)

    Altseimer, J.H.; Edeskuty, F.J.

    1988-08-01T23:59:59.000Z

    This study investigates how process heat from Guatemala's geothermal energy resources can be developed to reduce Guatemala's costly importation of oil, create new employment by encouraging new industry, and reduce fuel costs for existing industry. This investigation was funded by the US Agency for International Development and carried out jointly by the Guatemalan Government and the Los Alamos National Laboratory. Two sites, Amatitlan and Zunil, are being developed geothermally. Amatitlan is in the better industrial area but Zunil's geothermal development is more advanced. The industry around Zunil is almost exclusively agricultural and the development of an agricultural processing plant (freezing, dehydration, and cold storage) using geothermal heat is recommended. Similar developments throughout the volcanic zones of Guatemala are possible. Later, when the field at Amatitlan has been further developed, an industrial park can be planned. Potential Amatitlan applications are the final stage of salt refining, a thermal power plant, hospital/hotel heating and cooling, steam curing of concrete blocks, production of alcohol from sugar cane, and production of polyethylene from ethanol. Other special developments such as water pumping for the city of Guatemala and the use of moderate-temperature geothermal fluids for localized power production are also possible. 12 refs., 13 figs., 14 tabs.

  20. 2013 Annual Report -- Geothermal Technologies Office | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33 1112011 Strategic2UraniumEnergyDepartment of Energy SecureDepartment of2013 Annual Report

  1. Geothermal Technologies Program Annual Peer Review Presentation By Doug

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdf Flash2006-52.pdf0.pdfDepartmentCounsel Law StudentofPumpStudiesAnnual ReportHollett

  2. Geothermal Technologies Program Annual Peer Review Presentation By Doug Hollett

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdf Flash2006-52.pdf0.pdfDepartmentCounsel Law StudentofPumpStudiesAnnual

  3. Preliminary direct heat geothermal resource assessment of the Tennessee Valley region

    SciTech Connect (OSTI)

    Staub, W.P.

    1980-01-01T23:59:59.000Z

    A preliminary appraisal of the direct heat geothermal energy resources of the Tennessee Valley region has been completed. This region includes Kentucky, Tennessee and parts of adjacent states. Intermediate and deep aquifers were selected for study. Basement and Top-of-Knox structure and temperature maps were compiled from oil and gas well data on file at various state geological survey offices. Results of this study indicate that the New Madrid seismic zone is the only area within the region that possesses potential for direct heat utilization. In other areas geothermal energy is either too deep for economical extraction or it will not be able to compete with other local energy resources. The only anomalously high temperature well outside the New Madrid seismic zone was located in the Rome Trough and near the central part of the eastern Kentucky coal basin. Geothermal energy in that region would face strong competition from coal, oil and natural gas.

  4. Geothermal: Sponsored by OSTI -- GEOTHERMAL / SOLAR HYBRID DESIGNS...

    Office of Scientific and Technical Information (OSTI)

    GEOTHERMAL SOLAR HYBRID DESIGNS: USE OF GEOTHERMAL ENERGY FOR CSP FEEDWATER HEATING Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On...

  5. Geothermal Heat Pump System for the New 500-bed 200,000 SF Student Housing Project at the University at Albanys Main Campus

    Broader source: Energy.gov [DOE]

    This project proposes to heat and cool planned 500-bed apartment-style student housing with closed loop vertical bore geothermal heat pump system installation.

  6. THERMALLY CONDUCTIVE CEMENTITIOUS GROUTS FOR GEOTHERMAL HEAT PUMPS. PROGRESS REPORT BY 1998

    SciTech Connect (OSTI)

    ALLAN,M.L.; PHILIPPACOPOULOS,A.J.

    1998-11-01T23:59:59.000Z

    Research commenced in FY 97 to determine the suitability of superplasticized cement-sand grouts for backfilling vertical boreholes used with geothermal heat pump (GHP) systems. The overall objectives were to develop, evaluate and demonstrate cementitious grouts that could reduce the required bore length and improve the performance of GHPs. This report summarizes the accomplishments in FY 98.

  7. Smart Control of a Geothermally Heated Bridge Deck Stephen C. Jenks (o) 580-767-4374

    E-Print Network [OSTI]

    Jenks 1 Smart Control of a Geothermally Heated Bridge Deck Stephen C. Jenks (o) 580-767-4374 Conoco Inc. (f) 580-767-6316 P.O. Box 1267 Stephen.C.Jenks@conoco.com Ponca City, OK 74602-1267 James R-ROM Paper revised from original submittal. #12;Jenks 2 Abstract. This manuscript describes the "smart

  8. Low-Temperature Enhanced Geothermal System using Carbon Dioxide as the Heat-Transfer Fluid

    SciTech Connect (OSTI)

    Eastman, Alan D. [GreenFire Energy

    2014-07-24T23:59:59.000Z

    This report describes work toward a supercritical CO2-based EGS system at the St. Johns Dome in Eastern Arizona, including a comprehensive literature search on CO2-based geothermal technologies, background seismic study, geological information, and a study of the possible use of metal oxide heat carriers to enhance the heat capacity of sCO2. It also includes cost estimates for the project, and the reasons why the project would probably not be cost effective at the proposed location.

  9. Geothermal Heating and Cooling Systems Featured on NBC Nightly News |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), Geothermal Technologies Program (GTP) | Department of

  10. Geothermal Energy

    SciTech Connect (OSTI)

    Steele, B.C.; Harman, G.; Pitsenbarger, J. [eds.] [eds.

    1996-02-01T23:59:59.000Z

    Geothermal Energy Technology (GET) announces on a bimonthly basis the current worldwide information available on the technologies required for economic recovery of geothermal energy and its use as direct heat or for electric power production.

  11. Energy Returned On Investment of Engineered Geothermal Systems Annual Report FY2011

    SciTech Connect (OSTI)

    Mansure, A.J.

    2011-12-31T23:59:59.000Z

    Energy Return On Investment (EROI) is an important figure of merit for assessing the viability of energy alternatives. For geothermal electric power generation, EROI is determined by the electricity delivered to the consumer compared to the energy consumed to construct, operate, and decommission the facility. Critical factors in determining the EROI of Engineered Geothermal Systems (EGS) are examined in this work. These include the input energy embodied into the system. The embodied energy includes the energy contained in the materials, as well as, that consumed in each stage of manufacturing from mining the raw materials to assembling the finished plant. Also critical are the system boundaries and value of the energy - heat is not as valuable as electrical energy.

  12. Fluid and heat flow in gas-rich geothermal reservoirs

    SciTech Connect (OSTI)

    O'Sullivan, M.J.; Bodvarsson, G.S.; Pruess, K.; Blakeley, M.R.

    1983-07-01T23:59:59.000Z

    Numerical-simulation techniques are used to study the effects of noncondensible gases (CO/sub 2/) on geothermal reservoir behavior in the natural state and during exploitation. It is shown that the presence of CO/sub 2/ has large effects on the thermodynamic conditions of a reservoir in the natural state, especially on temperature distributions and phase compositions. The gas will expand two-phase zones and increase gas saturations to enable flow of CO/sub 2/ through the system. During exploitation, the early pressure drop is primarily due to degassing of the system. This process can cause a very rapid initial pressure drop, on the order of tens of bars, depending upon the initial partial pressure of CO/sub 2/. The following gas content from wells can provide information on in-place gas saturations and relative permeability curves that apply at a given geothermal resource. Site-specific studies are made for the gas-rich two-phase reservoir at the Ohaki geothermal field in New Zealand. A simple lumped-parameter model and a vertical column model are applied to the field data. The results obtained agree well with the natural thermodynamic state of the Ohaki field (pressure and temperature profiles) and a partial pressure of 15 to 25 bars is calculated in the primary reservoirs. The models also agree reasonably well with field data obtained during exploitation of the field. The treatment of thermophysical properties of H/sub 2/O-CO/sub 2/ mixtures for different phase compositions is summarized.

  13. Lakeview Residences Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation,working-groupsIllinois:LakeIowa: Energy Resources JumpOpen Energy

  14. Langel Valley Space Heating Low Temperature Geothermal Facility | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:Landowners and Wind Energy Development Jump to: navigation,Langdon,

  15. Lava Hot Springs Space Heating Low Temperature Geothermal Facility | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:Landowners and Wind Energy DevelopmentLaurentian Energy Authority JumpEnergy

  16. Litchfield Correctional Center District Heating Low Temperature Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:Landowners and WindLightingLinthicum, Maryland:source History ViewFacility |

  17. Lolo Hot Springs Resort Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:Landowners andLodgepole, Nebraska: Energy ResourcesNebraska:WestOpen

  18. Low Temperature Direct Use District Heating Geothermal Facilities | Open

    Open Energy Info (EERE)

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  19. Low Temperature Direct Use Space Heating Geothermal Facilities | Open

    Open Energy Info (EERE)

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  20. Boulder Hot Springs Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

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  1. Burgdorf Hot Springs Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

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  2. LDS Church Space Heating Low Temperature Geothermal Facility | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation, search GEOTHERMALTexas:Kuju KankoAnnouncement

  3. LDS Wardhouse Space Heating Low Temperature Geothermal Facility | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation, search GEOTHERMALTexas:Kuju KankoAnnouncementEnergy

  4. Ouray Municipal Pool Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri:EnergyOssian, New York: EnergyOuachita Electric Coop CorpOpen Energy

  5. Pagosa Springs Private Wells Space Heating Low Temperature Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri:EnergyOssian, New York:Ozark,Pacific GasPage" ShowingFacility

  6. Peppermill Hotel Casino Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri:EnergyOssian,ParleInformationPenobscotPeotone, Illinois:PepperOpen

  7. Geothermal Heat Pump Benefits Webinar | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdf Flash2006-52.pdf0.pdfDepartmentCounsel Law StudentofPump Benefits Webinar Geothermal

  8. Olene Gap Space Heating Low Temperature Geothermal Facility | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri: EnergyExcellenceOffice of StateOklahomaField,Olde West

  9. Ophir Creek Space Heating Low Temperature Geothermal Facility | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri: EnergyExcellenceOfficeOhio: EnergyProjects/SearchInformation

  10. Oregon Institute of Technology District Heating Low Temperature Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall,Missouri:Energy Information Fees for Underground Injection| Open

  11. Manley Hot Springs Space Heating Low Temperature Geothermal Facility | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:LandownersLuther,Jemez Pueblo Area6612134°,ManisteeEnergy

  12. Manzanita Estates District Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:LandownersLuther,Jemez PuebloManteca, California: EnergyChange |ManzOpen

  13. Marlin Hospital Space Heating Low Temperature Geothermal Facility | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:LandownersLuther,JemezMissouri: EnergyMarlboro, New York: EnergyNew

  14. Maywood Industries of Oregon Space Heating Low Temperature Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio: Energy ResourcesMavi Innovations IncMayfield, NewLanding,

  15. Medical Center Space Heating Low Temperature Geothermal Facility | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio: Energy8429°, -88.864698°Mecosta County,New York:Energy

  16. Medical Hot Springs Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio: Energy8429°, -88.864698°Mecosta County,New York:EnergyOpen

  17. Melozi Space Heating Low Temperature Geothermal Facility | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio: Energy8429°,Meeteetse, Wyoming:InformationInformation

  18. Miracle Hot Spring Space Heating Low Temperature Geothermal Facility | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio:Menomonee|MililaniMindanaoMinuano Energias Alternativas

  19. Miracle Hot Springs Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville, Ohio:Menomonee|MililaniMindanaoMinuano Energias AlternativasEnergyOpen

  20. Modesto Memorial Hospital Space Heating Low Temperature Geothermal Facility

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville,Missoula, Montana: EnergyAnalysis ofDecker,Modernizing Public| Open

  1. Modoc High School Space Heating Low Temperature Geothermal Facility | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville,Missoula, Montana: EnergyAnalysis ofDecker,Modernizing Public|Energy

  2. Mount Princeton Area Space Heating Low Temperature Geothermal Facility |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville,Missoula,MontereyHill, California:Morse,WaveLebanon,York:Open Energy

  3. New Mexico State University District Heating Low Temperature Geothermal

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer PlantMunhall, Pennsylvania:Information Operating Permit ListFacility | Open Energy

  4. Radium Hot Springs Space Heating Low Temperature Geothermal Facility | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I GeothermalPotentialBiopowerSolidGenerationMethodInformationeNevadaRadioactiveRadiometrics Jump

  5. Reservoir technology - geothermal reservoir engineering research at Stanford. Fifth annual report, October 1, 1984-September 30, 1985

    SciTech Connect (OSTI)

    Ramey, H.J. Jr.; Kruger, P.; Horne, R.N.; Miller, F.G.; Brigham, W.E.

    1985-09-01T23:59:59.000Z

    The objective is to carry out research on geothermal reservoir engineering techniques useful to the geothermal industry. A parallel objective is the training of geothermal engineers and scientists. The research is focused toward accelerated development of hydrothermal resources through the evaluation of fluid reserves, and the forecasting of field behavior with time. Injection technology is a research area receiving special attention. The program is divided into reservoir definition research, modeling of heat extraction from fractured reservoirs, application and testing of new and proven reservoir engineering technology, and technology transfer. (ACR)

  6. Enhanced Geothermal Systems (EGS) with CO2as Heat Transmission...

    Broader source: Energy.gov (indexed) [DOE]

    Program eere.energy.gov * The project started in FY10 * Collaboration between LBNL (Pruess) and INL (Redden) - Berkeley leads modeling, CO 2 -brine flow and heat...

  7. Two (2) 175 Ton (350 Tons total) Chiller Geothermal Heat Pumps for recently commissioned LEED Platinum Building

    Broader source: Energy.gov [DOE]

    This project will operate; collect data; and market the energy savings and capital costs of a recently commissioned chiller geothermal heat pump project to promote the wide-spread adoption of this mature technology.

  8. Geothermal Energy R&D Program Annual Progress Report for Fiscal Year 1992

    SciTech Connect (OSTI)

    None

    1993-07-01T23:59:59.000Z

    Geothermal budget actual amounts are shown for FY 1989 -1992, broken down by about 15 categories. Here, the main Program categories are: Exploration Technology, Drilling Technology, Reservoir Technology, Conversion Technology (power plants and materials), Industry-Coupled Drilling, Drilling Applications, Reservoir Engineering Applications, Direct Heat, Geopressured Wells Operation, and Hot Dry Rock Research. Here the title--Industry-Coupled Drilling--covered case studies of the Coso, CA, and Dixie Valley, NV, fields, and the Long Valley Exploratory Well (which had started as a magma energy exploration project, but reported here as a hydrothermal prospect evaluation well). (DJE 2005)

  9. Enhanced Geothermal Systems (EGS) comparing water with CO2 as heat transmission fluids

    E-Print Network [OSTI]

    Pruess, Karsten

    2007-01-01T23:59:59.000Z

    D.W. A Hot Dry Rock Geothermal Energy Concept Utilizingcombine recovery of geothermal energy with simultaneous1. Introduction Geothermal energy extraction is currently

  10. Enhanced Geothermal Systems (EGS) comparing water with CO2 as heat transmission fluids

    E-Print Network [OSTI]

    Pruess, Karsten

    2007-01-01T23:59:59.000Z

    and Clay Swelling in a Fractured Geothermal Reservoir,Transactions, Geothermal Resources Council, Vol. 28, pp.the 5-km Deep Enhanced Geothermal Reservoir at Soultz-sous-

  11. Geothermal Literature Review At International Geothermal Area...

    Open Energy Info (EERE)

    Hvalfjordur Fjord area, re: Heat flow References G. Ranalli, L. Rybach (2005) Heat Flow, Heat Transfer And Lithosphere Rheology In Geothermal Areas- Features And Examples...

  12. Geothermal Literature Review At International Geothermal Area...

    Open Energy Info (EERE)

    Latera area, Tuscany, re: Heat Flow References G. Ranalli, L. Rybach (2005) Heat Flow, Heat Transfer And Lithosphere Rheology In Geothermal Areas- Features And Examples...

  13. Geothermal Literature Review At International Geothermal Area...

    Open Energy Info (EERE)

    Taupo, North Island, re: Heat Flow References G. Ranalli, L. Rybach (2005) Heat Flow, Heat Transfer And Lithosphere Rheology In Geothermal Areas- Features And Examples...

  14. The Energy Department's Geothermal Technologies Office Releases...

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

    The Energy Department's Geothermal Technologies Office Releases 2013 Annual Report The Energy Department's Geothermal Technologies Office Releases 2013 Annual Report February 7,...

  15. Selecting the Design Entering Water Temperature for Vertical Geothermal Heat Pumps in Cooling-Dominated Applications

    SciTech Connect (OSTI)

    Shonder, John A [ORNL; Thornton, Jeff W. [Thermal Energy Systems Specialists, Inc.; Hughes, Patrick [ORNL

    2001-01-01T23:59:59.000Z

    At a military base in the Southeastern United States, an energy services company (ESCO) has proposed to retrofit more than 1,000 family residences with geothermal heat pumps as part of an energy savings performance contract (ESPC). Each residence is to have one heat pump with its own ground heat exchanger consisting of two or more vertical bores. A design firm hired by the ESCO sized the heat pumps to meet peak cooling loads, and sized the borefields to limit the maximum entering water temperature (EWT) to the heat pumps to 95 F (35 C). Because there is some disagreement in the geothermal heat pump industry over the peak temperature to be used for design (some designers and design manuals recommend temperatures as low as 85 F [29 C], while equipment manufacturers and others specify temperatures of 100 F [38 C] or higher) the authors were requested to examine the designs in detail to determine whether the 95 F (35 C) limit was adequate to ensure occupant comfort, efficient operation, and low capital and operating costs. It was found that three of the designer's assumptions made the borefield designs more conservative (i.e., longer) than the 95 F (35 C) limit would indicate. In fact, the analysis indicates that with more realistic assumptions about system operation, the maximum entering water temperature at the modeled residence will be about 89 F (32 C). Given the implications of a borefield that is shorter than required, it is likely that other designers are using similarly conservative assumptions to size vertical borefields for geothermal heat pumps. This implies that unless all of the design assumptions are examined, blanket recommendations to limit the entering water temperature to a specific value (such as 90 F [32 C]) may result in borefields that are significantly oversized.

  16. Selecting the Design Entering Water Temperature for Vertical Geothermal Heat Pumps in Cooling-Dominated Applications

    SciTech Connect (OSTI)

    Shonder, J.A.

    2001-07-12T23:59:59.000Z

    At a military base in the Southeastern US, an energy services company (ESCO) has proposed to retrofit more than 1,000 family residences with geothermal heat pumps as part of an energy savings performance contract (ESPC). Each residence is to have one heat pump with its own ground heat exchanger consisting of two or more vertical bores. A design firm hired by the ESCO sized the heat pumps to meet peak cooling loads, and sized the borefields to limit the maximum entering water temperature (EWT) to the heat pumps to 95 F (35 C). Because there is some disagreement in the geothermal heat pump industry over the peak temperature to be used for design (some designers and design manuals recommend temperatures as low as 85 F [29 C], while equipment manufacturers and others specify temperatures of 100 F [38 C] or higher) the authors were requested to examine the designs in detail to determine whether the 95 F (35 C) limit was adequate to ensure occupant comfort, efficient operation, and low capital and operating costs. It was found that three of the designer's assumptions made the borefield designs more conservative (i.e., longer) than the 95 F (35 C) limit would indicate. In fact, the analysis indicates that with more realistic assumptions about system operation, the maximum entering water temperature at the modeled residence will be about 89 F (32 C). Given the implications of a borefield that is shorter than required, it is likely that other designers are using similarly conservative assumptions to size vertical borefields for geothermal heat pumps. This implies that unless all of the design assumptions are examined, blanket recommendations to limit the entering water temperature to a specific value (such as 90 F [32 C]) may result in borefields that are significantly oversized.

  17. Geothermal Heat Pumps as a Cost Saving and Capital Renewal Too!

    SciTech Connect (OSTI)

    Hughes, P.J.

    1998-11-06T23:59:59.000Z

    An independent evaluation of the Fort Polk, Louisiana energy savings performance contract (ESPC) has verified the financial value of geothermal heat pump (GHP)-centered ESPCS to the federal government. The Department of Energy (DOE) Federal Energy Management Program (FEMP) has responded by issuing an RFP for the "National GHP-Technology-Specific Super ESPC Procurement." Federal agency sites anywhere in the nation will be able to implement GHP-centered ESPC projects as delivery orders against the awarded contracts.

  18. Methodology for the evaluation of a 4000-home geothermal heat pump retrofit at Fort Polk, Louisiana

    SciTech Connect (OSTI)

    Hughes, P.J.; Shonder, J.A.; White, D.L.; Huang, H.L.

    1998-03-01T23:59:59.000Z

    The US Army and a private energy service company are developing a comprehensive energy efficiency project to upgrade the family housing at Fort Polk, Louisiana. The project includes converting the space conditioning systems of more than 4,000 housing units to geothermal (or ground-source) heat pumps (GHPs). This interim report describes the methodology of the evaluation associated with this project, including the field monitoring that has been conducted at the base.

  19. Hot Dry Rock Geothermal Energy Development Program. Annual report, fiscal year 1979

    SciTech Connect (OSTI)

    Cremer, G.M.; Duffield, R.B.; Smith, M.C.; Wilson, M.G. (comps.)

    1980-08-01T23:59:59.000Z

    The Fenton Hill Project is still the principal center for developing methods, equipment, and instrumentation for creating and utilizing HDR geothermal reservoirs. The search for a second site for a similar experimental system in a different geological environment has been intensified, as have the identification and characterization of other HDR areas that may prove suitable for either experimental or commercial development. The Phase I fracture system was enlarged during FY79. Drilling of the injection well of the Phase II system began at Fenton Hill in April 1979. Environmental monitoring of the Fenton Hill area continued through FY79. The environmental studies indicate that the hot dry rock operations have caused no significant environmental impact. Other supporting activities included rock physics, rock mechanics, fracture mapping, and instrumentation development. Two closely related activities - evaluation of the potential HDR energy resource of the US and the selection of a site for development of a second experimental heat-extraction system generally similar to that at Fenton Hill - have resulted in the collection of geology, hydrology, and heat-flow data on some level of field activity in 30 states. The resource-evaluation activity included reconnaissance field studies and a listing and preliminary characterization of US geothermal areas in which HDR energy extraction methods may be applicable. The selection of Site 2 has taken into account such legal, institutional, and economic factors as land ownership and use, proximity to possible users, permitting and licensing requirements and procedures, environmental issues, areal extent of the geothermal area, and visibility to and apparent interest by potential industrial developers.

  20. Reference book on geothermal direct use

    SciTech Connect (OSTI)

    Lienau, P.J.; Lund, J.W.; Rafferty, K.; Culver, G.

    1994-08-01T23:59:59.000Z

    This report presents the direct uses of geothermal energy in the United States. Topics discussed include: low-temperature geothermal energy resources; energy reserves; geothermal heat pumps; geothermal energy for residential buildings; and geothermal energy for industrial usage.

  1. Geothermal: Sponsored by OSTI -- Sustaining the National Geothermal...

    Office of Scientific and Technical Information (OSTI)

    Sustaining the National Geothermal Data System: Considerations for a System Wide Approach and Node Maintenance, Geothermal Resources Council 37th Annual Meeting, Las Vegas, Nevada,...

  2. Fluid Circulation and Heat Extraction from Engineered Geothermal Reservoirs

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489Information Hydro IncEnergy InformationFlue GasFlueGen

  3. Policy Makers' Guidebook for Geothermal Heating and Cooling | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroupPerfectenergyInformation to Reduce Emissions from

  4. Investigating Ground Source Geothermal Heating for Garfield House

    E-Print Network [OSTI]

    Aalberts, Daniel P.

    of historical significance associated with Garfield, as it dates back to 1885, serving as a fraternity house heating oil consumption from January 2004 through December 2009, or 72 monthly values. Formulas were set and revised consumption rates were then assigned a conservative cost estimate based on retail price data from

  5. Method and apparatus for determining vertical heat flux of geothermal field

    DOE Patents [OSTI]

    Poppendiek, Heinz F. (LaJolla, CA)

    1982-01-01T23:59:59.000Z

    A method and apparatus for determining vertical heat flux of a geothermal field, and mapping the entire field, is based upon an elongated heat-flux transducer (10) comprised of a length of tubing (12) of relatively low thermal conductivity with a thermopile (20) inside for measuring the thermal gradient between the ends of the transducer after it has been positioned in a borehole for a period sufficient for the tube to reach thermal equilibrium. The transducer is thermally coupled to the surrounding earth by a fluid annulus, preferably water or mud. A second transducer comprised of a length of tubing of relatively high thermal conductivity is used for a second thermal gradient measurement. The ratio of the first measurement to the second is then used to determine the earth's thermal conductivity, k.sub..infin., from a precalculated graph, and using the value of thermal conductivity thus determined, then determining the vertical earth temperature gradient, b, from predetermined steady state heat balance equations which relate the undisturbed vertical earth temperature distributions at some distance from the borehole and earth thermal conductivity to the temperature gradients in the transducers and their thermal conductivity. The product of the earth's thermal conductivity, k.sub..infin., and the earth's undisturbed vertical temperature gradient, b, then determines the earth's vertical heat flux. The process can be repeated many times for boreholes of a geothermal field to map vertical heat flux.

  6. The evaluation of a 4000-home geothermal heat pump retrofit at Fort Polk, Louisiana: Final Report

    SciTech Connect (OSTI)

    Hughes, P.J.; Shonder, J.A.

    1998-03-01T23:59:59.000Z

    This report documents an independent evaluation of an energy retrofit of 4,003 family housing units at Fort Polk, Louisiana, under an energy savings performance contract (ESPC). Replacement of the heating, cooling, and water heating systems in these housing units with geothermal heat pumps (GHPs) anchored the retrofit; low-flow shower heads and compact fluorescent lighting were also installed, as well as attic insulation where needed. Statistically valid findings indicate that the project will save 25.8 million kWh, or 32.5% of the pre-retrofit whole-community electrical consumption, and 100% of the whole-community natural gas previously used for space conditioning and water heating (260,000 therms) in a typical meteorological year. At the end-use level, the GHPs were found to save about 42% of the pre-retrofit electrical consumption for heating, cooling, and water heating in housing units that were all-electric in the pre-retrofit period. This report also demonstrates an improved method of predicting energy savings. Using an engineering model calibrated to pre-retrofit energy use data collected in the field, the method predicted actual energy savings on one of the electric feeders at Fort Polk with a very high degree of accuracy. The accuracy of this model was in turn dependent on data-calibrated models of the geothermal heat pump and ground heat exchanger that are described in this report. In addition this report documents the status of vertical borehole ground heat exchanger (BHEx) design methods at the time this project was designed, and demonstrates methods of using data collected from operating GHP systems to benchmark BHEx design methods against a detailed engineering model calibrated to date. The authors also discuss the ESPC`s structure and implementation and how the experience gained here can contribute to the success of future ESPCs.

  7. Energy 101: Geothermal Heat Pumps | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign:INEAWaterCool Roofs Energy 101: Cool Roofs AddthisFuelHeat

  8. Metal Organic Heat Carriers for Enhanced Geothermal Systems | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment3311, 3312), OctoberMayEnergy Metal Organic Heat Carriers for

  9. Geothermal heating retrofit at the Utah State Prison Minimum Security Facility. Final report, March 1979-January 1986

    SciTech Connect (OSTI)

    Not Available

    1986-01-01T23:59:59.000Z

    This report is a summary of progress and results of the Utah State Prison Geothermal Space Heating Project. Initiated in 1978 by the Utah State Energy Office and developed with assistance from DOE's Division of Geothermal and Hydropower Technologies PON program, final construction was completed in 1984. The completed system provides space and water heating for the State Prison's Minimum Security Facility. It consists of an artesian flowing geothermal well, plate heat exchangers, and underground distribution pipeline that connects to the existing hydronic heating system in the State Prison's Minimum Security Facility. Geothermal water disposal consists of a gravity drain line carrying spent geothermal water to a cooling pond which discharges into the Jordan River, approximately one mile from the well site. The system has been in operation for two years with mixed results. Continuing operation and maintenance problems have reduced the expected seasonal operation from 9 months per year to 3 months. Problems with the Minimum Security heating system have reduced the expected energy contribution by approximately 60%. To date the system has saved the prison approximately $18,060. The total expenditure including resource assessment and development, design, construction, performance verification, and reporting is approximately $827,558.

  10. Hot dry rock geothermal energy development program. Annual report, fiscal year 1980

    SciTech Connect (OSTI)

    Cremer, G.M. (comp.)

    1981-07-01T23:59:59.000Z

    Investigation and flow testing of the enlarged Phase I heat-extraction system at Fenton Hill continued throughout FY80. Temperature drawdown observed at that time indicated an effective fracture of approximately 40,000 to 60,000 m/sup 2/. In May 1980, hot dry rock (HDR) technology was used to produce electricity in an interface demonstration experiment at Fenton Hill. A 60-kVA binary-cycle electrical generator was installed in the Phase I surface system and heat from about 3 kg/s of geothermal fluid at 132/sup 0/C was used to boil Freon R-114, whose vapor drove a turboalternator. A Phase II system was designed and is now being constructed at Fenton Hill that should approach commercial requirements. Borehole EE-2, the injection well, was completed on May 12, 1980. It was drilled to a vertical depth of about 4500 m, where the rock temperature is approximately 320/sup 0/C. The production well, EE-3 had been drilled to a depth of 3044 m and drilling was continuing. Environmental monitoring of Fenton Hill site continued. Development of equipment, instruments, and materials for technical support at Fenton Hill continued during FY80. Several kinds of models were also developed to understand the behavior of the Phase I system and to develop a predictive capability for future systems. Data from extensive resource investigations were collected, analyzed, and assembled into a geothermal gradient map of the US, and studies were completed on five specific areas as possible locations for HDR Experimental Site 2.

  11. Basin View Geothermal Heating District, Klamath Falls, Oregon: conceptual design and economic-feasibility study report

    SciTech Connect (OSTI)

    Not Available

    1981-07-01T23:59:59.000Z

    The findings of a feasibility study performed for Basin View Heating District in Klamath Falls, Oregon are reported. The purpose of the study is to determine the physical, economic, and political feasibility of establishing a geothermal heating district to provide space heat to housing units in the Basin View Development of Klamath Falls. Of the several systems considered, all are physically feasible. The project is politically feasible if the owner compiles with governmental requirements. Economic feasibility is based on considerations of money value rates, tax rates and expected rates of return, which are dependent on government and money markets. For analysis a money value rate of 21% and an owner's marginal tax rate of 35% were adopted.

  12. Modeling studies of heat transfer and phase distribution in two-phase geothermal reservoirs

    SciTech Connect (OSTI)

    Lai, C.H.; Bodvarsson, G.S.; Truesdell, A.H. (Lawrence Berkeley Lab., CA (United States). Earth Sciences Div.)

    1994-02-01T23:59:59.000Z

    Phase distribution as well as mass flow and heat transfer behavior in two-phase geothermal systems have been studied by numerical modeling. A two-dimensional porous-slab model was used with a non-uniform heat flux boundary conditions at the bottom. Steady-state solutions are obtained for the phase distribution and heat transfer behavior for cases with different mass of fluid (gas saturation) in place, permeabilities, and capillary pressures. The results obtained show very efficient heat transfer in the vapor-dominated zone due to the development of heat pipes and near-uniform saturations. The phase distribution below the vapor-dominated zone depends on permeability. For relatively high-permeability systems, single-phase liquid zones prevail, with convection providing the energy throughput. For lower permeability systems, a two-phase liquid-dominated zone develops, because single-phase liquid convection is not sufficient to dissipate heat released from the source. These results are consistent with observations from the field, where most high-temperature liquid-dominated two-phase systems have relatively low permeabilities e.g. Krafla, Iceland; Kenya; Baca, New Mexico. The numerical results obtained also show that for high heat flow a high-temperature single-phase vapor zone can develop below a typical (240 C) vapor-dominated zone, as has recently been found at the Geysers, California, and Larderello, Italy.

  13. Enhancing Condensers for Geothermal Systems: the Effect of High Contact Angles on Dropwise Condensation Heat Transfer

    SciTech Connect (OSTI)

    Kennedy, John M.; Kim, Sunwoo; Kim, Kwang J.

    2009-10-06T23:59:59.000Z

    Phase change heat transfer is notorious for increasing the irreversibility of, and therefore decreasing the efficiency of, geothermal power plants. Its significant contribution to the overall irreversibility of the plant makes it the most important source of inefficiency in the process. Recent studies here have shown the promotion of drop wise condensation in the lab by means of increasing the surface energy density of a tube with nanotechnology. The use of nanotechnology has allowed the creation of surface treatments which discourage water from wetting a tube surface during a static test. These surface treatments are unique in that they create high- contact angles on the condensing tube surfaces to promote drop wise condensation.

  14. Advanced biochemical processes for geothermal brines FY 1998 annual operating plan

    SciTech Connect (OSTI)

    NONE

    1997-10-01T23:59:59.000Z

    As part of the overall Geothermal Energy Research which is aimed at the development of economical geothermal resources production systems, the aim of the Advanced Biochemical Processes for Geothermal Brines (ABPGB) effort is the development of economic and environmentally acceptable methods for disposal of geothermal wastes and conversion of by-products to useful forms. Methods are being developed for dissolution, separation and immobilization of geothermal wastes suitable for disposal, usable in inert construction materials, suitable for reinjection into the reservoir formation, or used for recovery of valuable metals.

  15. SCALE RESISTANT HEAT EXCHANGER FOR LOW TEMPERATURE GEOTHERMAL BINARY CYCLE POWER PLANT

    SciTech Connect (OSTI)

    HAYS, LANCE G

    2014-11-18T23:59:59.000Z

    Phase 1 of the investigation of improvements to low temperature geothermal power systems was completed. The improvements considered were reduction of scaling in heat exchangers and a hermetic turbine generator (eliminating seals, seal system, gearbox, and lube oil system). A scaling test system with several experiments was designed and operated at Coso geothermal resource with brine having a high scaling potential. Several methods were investigated at the brine temperature of 235 șF. One method, circulation of abradable balls through the brine passages, was found to substantially reduce scale deposits. The test heat exchanger was operated with brine outlet temperatures as low as 125 șF, which enables increased heat input available to power conversion systems. For advanced low temperature cycles, such as the Variable Phase Cycle (VPC) or Kalina Cycle, the lower brine temperature will result in a 20-30% increase in power production from low temperature resources. A preliminary design of an abradable ball system (ABS) was done for the heat exchanger of the 1 megawatt VPC system at Coso resource. The ABS will be installed and demonstrated in Phase 2 of this project, increasing the power production above that possible with the present 175 șF brine outlet limit. A hermetic turbine generator (TGH) was designed and manufacturing drawings produced. This unit will use the working fluid (R134a) to lubricate the bearings and cool the generator. The 200 kW turbine directly drives the generator, eliminating a gearbox and lube oil system. Elimination of external seals eliminates the potential of leakage of the refrigerant or hydrocarbon working fluids, resulting in environmental improvement. A similar design has been demonstrated by Energent in an ORC waste heat recovery system. The existing VPC power plant at Coso was modified to enable the “piggyback” demonstration of the TGH. The existing heat exchanger, pumps, and condenser will be operated to provide the required process conditions for the TGH demonstration. Operation of the TGH with and without the ABS system will demonstrate an increase in geothermal resource productivity for the VPC from 1 MW/(million lb) of brine to 1.75 MW/(million lb) of brine, a 75% increase.

  16. Recovery act: development of design and simulation tool for hybrid geothermal heat pump system

    SciTech Connect (OSTI)

    Wang, Shaojie

    2014-05-29T23:59:59.000Z

    The ground source heat pump (GSHP) system is one of the most energy efficient HVAC technologies in the current market. However, the heat imbalance may degrade the ability of the ground loop heat exchanger (GLHX) to absorb or reject heat. The hybrid GSHP system, which combines a geothermal well field with a supplemental boiler or cooling tower, can balance the loads imposed on the ground loop heat exchangers to minimize its size while retaining superior energy efficiency. This paper presents a recent simulation-based study with an intention to compare multiple common control strategies used in hybrid GSHP systems, including fixed setpoint, outside air reset, load reset, and wetbulb reset. A small office in Oklahoma City conditioned by a hybrid GSHP system was simulated with the latest version of eQUEST 3.7[1]. The simulation results reveal that the hybrid GSHP system has the excellent capability to meet the cooling and heating setpoints during the occupied hours, balance thermal loads on the ground loop, as well as improve the thermal comfort of the occupants with the undersized well field.

  17. Hot-dry-rock geothermal-energy development program. Annual report, fiscal year 1981

    SciTech Connect (OSTI)

    Smith, M.C.; Ponder, G.M. (comps.)

    1981-01-01T23:59:59.000Z

    During fiscal year 1981, activities of the Hot Dry Rock Geothermal Energy Development Program were concentrated in four principal areas: (1) data collection to permit improved estimates of the hot dry rock geothermal energy resource base of various regions of the United States and of the United States as a whole, combined with detailed investigations of several areas that appear particularly promising either for further energy extraction experiments or for future commercial development; (2) successful completion of a 9-month, continuous, closed-loop, recirculating flow test in the enlarged Phase I System at Fenton Hill, New Mexico - a pressurized-water heat-extraction loop developed in low-permeability granitic rock by hydraulic fracturing; (3) successful completion at a depth of 4084 m (13,933 ft) of well EE-3, the production well of a larger, deeper, and hotter, Phase II System at Fenton Hill. Well EE-3 was directionally drilled with control of both azimuth and inclination. Its inclined section is about 380 m (1250 ft) vertically above the injection well, EE-2, which was completed in FY80; and (4) supporting activities included new developments in downhole instrumentation and equipment, geochemical and geophysical studies, rock-mechanics and fluid-mechanics investigations, computer analyses and modeling, and overall system design. Under an International Energy Agency agreement, the New Energy Development Organization, representing the Government of Japan has joined Kernforschungsanlage-Juelich GmbH, representing the Federal Republic of Germany, and the US Department of Energy as an active participant in the Fenton Hill Hot Dry Rock Project.

  18. Geothermal probabilistic cost study

    SciTech Connect (OSTI)

    Orren, L.H.; Ziman, G.M.; Jones, S.C.; Lee, T.K.; Noll, R.; Wilde, L.; Sadanand, V.

    1981-08-01T23:59:59.000Z

    A tool is presented to quantify the risks of geothermal projects, the Geothermal Probabilistic Cost Model (GPCM). The GPCM model is used to evaluate a geothermal reservoir for a binary-cycle electric plant at Heber, California. Three institutional aspects of the geothermal risk which can shift the risk among different agents are analyzed. The leasing of geothermal land, contracting between the producer and the user of the geothermal heat, and insurance against faulty performance are examined. (MHR)

  19. Using calibrated engineering models to predict energy savings in large-scale geothermal heat pump projects

    SciTech Connect (OSTI)

    Shonder, J.A.; Hughes, P.J. [Oak Ridge National Lab., TN (United States); Thornton, J.W. [Thermal Energy System Specialists, Madison, WI (United States)

    1998-10-01T23:59:59.000Z

    Energy savings performance contracting (ESPC) is now receiving greater attention as a means of implementing large-scale energy conservation projects in housing. Opportunities for such projects exist for military housing, federally subsidized low-income housing, and planned communities (condominiums, townhomes, senior centers), to name a few. Accurate prior (to construction) estimates of the energy savings in these projects reduce risk, decrease financing costs, and help avoid post-construction disputes over performance contract baseline adjustments. This paper demonstrates an improved method of estimating energy savings before construction takes place. Using an engineering model calibrated to pre-construction energy-use data collected in the field, this method is able to predict actual energy savings to a high degree of accuracy. This is verified with post-construction energy-use data from a geothermal heat pump ESPC at Fort Polk, Louisiana. This method also allows determination of the relative impact of the various energy conservation measures installed in a comprehensive energy conservation project. As an example, the breakout of savings at Fort Polk for the geothermal heat pumps, desuperheaters, lighting retrofits, and low-flow hot water outlets is provided.

  20. Using Calibrated Engineering Models To Predict Energy Savings In Large-Scale Geothermal Heat Pump Projects

    SciTech Connect (OSTI)

    Shonder, John A [ORNL; Hughes, Patrick [ORNL; Thornton, Jeff W. [Thermal Energy Systems Specialists, Inc.

    1998-01-01T23:59:59.000Z

    Energy savings performance contracting (ESPC) is now receiving greater attention as a means of implementing large-scale energy conservation projects in housing. Opportunities for such projects exist for military housing, federally subsidized low-income housing, and planned communities (condominiums, townhomes, senior centers), to name a few. Accurate prior (to construction) estimates of the energy savings in these projects reduce risk, decrease financing costs, and help avoid post-construction disputes over performance contract baseline adjustments. This paper demonstrates an improved method of estimating energy savings before construction takes place. Using an engineering model calibrated to pre-construction energy-use data collected in the field, this method is able to predict actual energy savings to a high degree of accuracy. This is verified with post-construction energy-use data from a geothermal heat pump ESPC at Fort Polk, Louisiana. This method also allows determination of the relative impact of the various energy conservation measures installed in a comprehensive energy conservation project. As an example, the breakout of savings at Fort Polk for the geothermal heat pumps, desuperheaters, lighting retrofits, and low-flow hot water outlets is provided.

  1. Geothermal Energy R&D Program: Annual Progress Report for Fiscal Year 1989

    SciTech Connect (OSTI)

    None

    1990-04-01T23:59:59.000Z

    This is an internal DOE Geothermal Program planning and control document. Many of these reports were issued only in draft form.

  2. Geothermal Energy R&D Program Annual Progress Report for Fiscal Year 1989 Draft

    SciTech Connect (OSTI)

    None

    1990-04-01T23:59:59.000Z

    This is an internal DOE Geothermal Program planning and control document. Many of these reports were issued only in draft form. (DJE -2005)

  3. Geothermal Energy R&D Program: Annual Progress Report for Fiscal Year 1991

    SciTech Connect (OSTI)

    None

    1992-03-01T23:59:59.000Z

    This is an internal DOE Geothermal Program planning and control document. Many of these reports were issued only in draft form.

  4. Hot Dry Rock Geothermal Energy Development Program Annual Report Fiscal Year 1988

    SciTech Connect (OSTI)

    Dash, Zora V.; Murphy, Hugh D.; Smith, Morton C.

    1988-01-01T23:59:59.000Z

    The complete list of HDR objectives is provided in Reference 10, and is tabulated below in Tables 1 and 2 for the reader's convenience. The primary, level 1, objective for HDR is ''to improve the technology to the point where electricity could be produced commercially from a substantial number of known HDR resource sites in a cost range of 5 to 8 cents/kWh by 1997''. A critically important milestone in attaining this cost target is the level II objective: ''Evaluate the performance of the Fenton Hill Phase II reservoir''. To appreciate the significance of this objective, a brief background is helpful. During the past 14 years the US DOE has invested $123 million to develop the technology required to make Hot Dry Rock geothermal energy commercially useful. The Governments of Japan and the Federal Republic of Germany have contributed an additional $32 million to the US program. The initial objectives of the program were met by the successful development and long-term operation of a heat-extraction loop in hydraulically-fractured hot dry rock. This Phase I reservoir produced pressurized hot water at temperatures and flow rates suitable for many commercial uses such as space heating and food processing. It operated for more than a year with no major problems or detectable environmental effect. With this accomplished and the technical feasibility of HDR energy systems demonstrated, the program undertook the more difficult task of developing a larger, deeper, hotter reservoir, called ''Phase II'', capable of supporting pilot-plant-scale operation of a commercial electricity-generating power plant. As described earlier in ''History of Research'', such a system was created and operated successfully in a preliminary 30-day flow test. However, to justify capital investment in HDR geothermal technology, industry now requires assurance that the reservoir can be operated for a long time without major problems or a significant decrease in the rate and quality of energy production. Industrial advisors to the HDR Program have concluded that, while a longer testing period would certainly be desirable, a successful and well-documented flow test of this high-temperature, Phase II reservoir lasting at least one year should convince industry that HDR geothermal energy merits their investment in its commercial development. This test is called the Long Term Flow Test (LTFT), and its completion will be a major milestone in attaining the Level 1 objective. However, before the LTFT could be initiated, well EE-2 had to be repaired, as also briefly described in the ''History of Research''. During this repair operation, superb progress was made toward satisfying the next most critically important Level II objective: Improve the Performance of HDR Drilling and Completion Technology. During the repair of EE-2, Los Alamos sidetracked by drilling out of the damaged well at 2.96 km (9700 ft), and then completed drilling a new-wellbore (EE-2A) to a total depth of 3.78 km (12,360 ft). As a consequence of this drilling experience, Los Alamos believes that if the original wells were redrilled today their combined cost would be only $8 million rather than the $18.8 million actually spent (a 60% cost saving). Further details, particularly of the completion of the well, can be found in the major section, ACCOMPLISHMENTS, but it can be seen that the second, Level II objective is already nearing attainment.

  5. Heat flow patterns of the North American continent: A discussion of the DNAG Geothermal Map of North America

    SciTech Connect (OSTI)

    Blackwell, David D.; Steele, John L.; Carter, Larry C.

    1990-01-01T23:59:59.000Z

    The large and small-scale geothermal features of the North American continent and surrounding ocean areas illustrated on the new 1:5,000,000 DNAG Geothermal Map of North America are summarized. Sources for the data included on the map are given. The types of data included are heat flow sites coded by value, contours of heat flow with a color fill, areas of major groundwater effects on regional heat flow, the top-of-geopressure in the Gulf Coast region, temperature on the Dakota aquifer in the midcontinent, location of major hot springs and geothermal systems, and major center of Quaternary and Holocene volcanism. The large scale heat flow pattern that is well known for the conterminous United States and Canada of normal heat flow east of the Cordillera and generally high heat flow west of the front of the Cordillera dominates the continental portion of the map. However, details of the heat flow variations are also seen and are discussed briefly in this and the accompanying papers.

  6. Industrial food processing and space heating with geothermal heat. Final report, February 16, 1979-August 31, 1982

    SciTech Connect (OSTI)

    Kunze, J.F.; Marlor, J.K.

    1982-08-01T23:59:59.000Z

    A competitive aware for a cost sharing program was made to Madison County, Idaho to share in a program to develop moderate-to-low temperature geothermal energy for the heating of a large junior college, business building, public shcools and other large buildings in Rexburg, Idaho. A 3943 ft deep well was drilled at the edge of Rexburg in a region that had been probed by some shallower test holes. Temperatures measured near the 4000 ft depth were far below what was expected or needed, and drilling was abandoned at that depth. In 1981 attempts were made to restrict downward circulation into the well, but the results of this effort yielded no higher temperatures. The well is a prolific producer of 70/sup 0/F water, and could be used as a domestic water well.

  7. GHPGHPGHPGHPGHPsPayforThemselvessPayforThemselvessPayforThemselvessPayforThemselvessPayforThemselves The world's largest installation of geothermal heat

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    federal agency facilities nation- wide for procuring GHP-centered energy-effi- ciency projects. The ESCOs measures: · EnergySavings · The energy retrofit reduced overall electrical consumption in Fort Polk familyThemselvessPayforThemselvessPayforThemselvessPayforThemselvessPayforThemselves The world's largest installation of geothermal heat pumps has proven that this technology can deliver big

  8. Feasibility of geothermal heat use in the San Bernardino Municipal Wastewater Treatment Plant. Final report, September 1980-June 1981

    SciTech Connect (OSTI)

    Racine, W.C.; Larson, T.C.; Stewart, C.A.; Wessel, H.B.

    1981-06-01T23:59:59.000Z

    The results of the feasibility study for utilizing low temperature geothermal heat in the City of San Bernardino Wastewater Treatment Plant are summarized. The study is presented in terms of preliminary engineering design, economic analysis, institutional issues, environmental impacts, resource development, and system implementation.

  9. OPTIMIZATION OF HYBRID GEOTHERMAL HEAT PUMP SYSTEMS Scott Hackel, Graduate Research Assistant; Gregory Nellis, Professor; Sanford Klein,

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    1 OPTIMIZATION OF HYBRID GEOTHERMAL HEAT PUMP SYSTEMS Scott Hackel, Graduate Research Assistant to complete a parametric study of optimal HyGCHP designs over a range of scenarios varying in climate with an optimization package to allow design and control parameters to be globally optimized in order to minimize

  10. Geothermal Energy

    SciTech Connect (OSTI)

    Steele, B.C.; Pichiarella, L.S. [eds.; Kane, L.S.; Henline, D.M.

    1995-01-01T23:59:59.000Z

    Geothermal Energy (GET) announces on a bimonthly basis the current worldwide information available on the technologies required for economic recovery of geothermal energy and its use as direct heat or for electric power production. This publication contains the abstracts of DOE reports, journal articles, conference papers, patents, theses, and monographs added to the Energy Science and Technology Database during the past two months.

  11. A COMPILATION OF DATA ON FLUIDS FROM GEOTHERMAL RESOURCES IN THE UNITED STATES

    E-Print Network [OSTI]

    Cosner, S.R.

    2010-01-01T23:59:59.000Z

    EXCHANGERS; GEOTHERMAL ENERGY: GEOTHERMAL SPACE HEATING;Well INFORMATION OWNER-- GEOTHERMAL ENERGY AND tUNERAL CORP.ION OhNEf. -- GEOTHERMAL ENERGY AND MINERAL CORP. DRILLING

  12. Feasibility of geothermal heat use in the San Bernardino Municipal Wastewater Treatment Plant. Final report, September 1980-June 1981

    SciTech Connect (OSTI)

    Racine, W.C.; Larson, T.C.; Stewart, C.A.; Wessel, H.B.

    1981-06-01T23:59:59.000Z

    A system was developed for utilizing nearby low temperature geothermal energy to heat two high-rate primary anaerobic digesters at the San Bernardino Wastewater Treatment Plant. The geothermal fluid would replace the methane currently burned to fuel the digesters. A summary of the work accomplished on the feasibility study is presented. The design and operation of the facility are examined and potentially viable applications selected for additional study. Results of these investigations and system descriptions and equipment specifications for utilizing geothermal energy in the selected processes are presented. The economic analyses conducted on the six engineering design cases are discussed. The environmental setting of the project and an analysis of the environmental impacts that will result from construction and operation of the geothermal heating system are discussed. A Resource Development Plan describes the steps that the San Bernardino Municipal Water Department could follow in order to utilize the resource. A preliminary well program and rough cost estimates for the production and injection wells also are included. The Water Department is provided with a program and schedule for implementing a geothermal system to serve the wastewater treatment plant. Regulatory, financial, and legal issues that will impact the project are presented in the Appendix. An outline of a Public Awareness Program is included.

  13. The Thirteenth Annual Interagency Geothermal Coordinating Council Report for Fiscal Year 1988

    SciTech Connect (OSTI)

    None

    1989-03-21T23:59:59.000Z

    The U.S. Interagency Geothermal Coordinating Council was a multi-agency group charged with identifying and reducing barriers to geothermal energy development in the U.S. Many of the issues covered related to regulations for and progress in the leasing of Federal lands in the West for power development. The IGCC reports are important sources of historical information. (DJE 2005)

  14. Geothermal energy

    SciTech Connect (OSTI)

    Renner, J.L. [Idaho National Engineering Laboratory, Idaho Fall, ID (United States); Reed, M.J. [Dept. of Energy, Washington, DC (United States)

    1993-12-31T23:59:59.000Z

    Use of geothermal energy (heat from the earth) has a small impact on the environmental relative to other energy sources; avoiding the problems of acid rain and greenhouse emissions. Geothermal resources have been utilized for centuries. US electrical generation began at The Geysers, California in 1960 and is now about 2300 MW. The direct use of geothermal heat for industrial processes and space conditioning in the US is about 1700 MW of thermal energy. Electrical production occurs in the western US and direct uses are found throughout the US. Typical geothermal power plants produce less than 5% of the CO{sub 2} released by fossil plants. Geothermal plants can now be configured so that no gaseous emissions are released. Sulfurous gases are effectively removed by existing scrubber technology. Potentially hazardous elements produced in geothermal brines are injected back into the producing reservoir. Land use for geothermal wells, pipelines, and power plants is small compared to land use for other extractive energy sources like oil, gas, coal, and nuclear. Per megawatt produced, geothermal uses less than one eighth the land that is used by a typical coal mine and power plant system. Geothermal development sites often co-exist with agricultural land uses like crop production or grazing.

  15. Geothermal Technologies Office Director Doug Hollett Keynotes...

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

    Director Doug Hollett Keynotes at Annual Technical Conference of the Geothermal Resources Council in September Geothermal Technologies Office Director Doug Hollett Keynotes at...

  16. Geothermal direct heat program: roundup technical conference proceedings. Volume II. Bibliography of publications. State-coupled geothermal resource assessment program

    SciTech Connect (OSTI)

    Ruscetta, C.A. (ed.)

    1982-07-01T23:59:59.000Z

    Lists of publications are presented for the Geothermal Resource Assessment Program for the Utah Earth Science Laboratory and the following states: Alaska, Arizona, California, Colorado, Hawaii, Idaho, Kansas, Montana, Nebraska, Nevada, New Mexico, New York, North Dakota, Oregon, Texas, Utah, and Washington.

  17. Mining earth's heat: development of hot-dry-rock geothermal reservoirs

    SciTech Connect (OSTI)

    Pettitt, R.A.; Becker, N.M.

    1983-01-01T23:59:59.000Z

    The energy-extraction concept of the Hot Dry Rock (HDR) Geothermal Program, as initially developed by the Los Alamos National Laboratory, is to mine this heat by creating a man-made reservoir in low-permeability, hot basement rock. This concept has been successfully proven at Fenton Hill in northern New Mexico by drilling two holes to a depth of approximately 3 km (10,000 ft) and a bottom temperature of 200/sup 0/C (392/sup 0/F), then connecting the boreholes with a large-diametervertical hydraulic fracture. Water is circulated down one borehole, heated by the hot rock, and rises up the second borehole to the surface where the heat is extracted and the cooled water is reinjected into the underground circulation loop. This system has operated for a cumulative 416 days during engineering and reservoir testing. An energy equivalent of 3 to 5 MW(t) was produced without adverse environmental problems. During one test, a generator was installed in the circulation loop and produced 60 kW of electricity. A second-generation system, recently drilled to 4.5 km (15,000 ft) and temperatures of 320/sup 0/C (608/sup 0/F), entails creating multiple, parallel fractures between a pair of inclined boreholes. This system should produce 5 to 10 MW(e) for 20 years. Significant contributions to underground technology have been made through the development of the program.

  18. San Bernardino District Heating District Heating Low Temperature...

    Open Energy Info (EERE)

    San Bernardino District Heating District Heating Low Temperature Geothermal Facility Facility San Bernardino District Heating Sector Geothermal energy Type District Heating...

  19. Geothermal technology development program. Annual progress report, October 1981-September 1982

    SciTech Connect (OSTI)

    Kelsey, J.R. (ed.)

    1983-08-01T23:59:59.000Z

    The status of ongoing Research and Development (R and D) within the Geothermal Technology Development Program is described. The program emphasizes research in rock penetration mechanics, fluid technology, borehole mechanics, diagnostics technology, and permeability enhancement.

  20. Energy Returned On Investment of Engineered Geothermal Systems Annual Report FY2010

    SciTech Connect (OSTI)

    Mansure, A.J.

    2010-12-31T23:59:59.000Z

    Energy Return On Investment (EROI) is an important figure of merit for assessing the viability of energy alternatives. EROI analyses of geothermal energy are either out of date or presented online with little supporting documentation. Often comparisons of energy systems inappropriately use 'efficiency' when EROI would be more appropriate. For geothermal electric power generation, EROI is determined by the electric energy delivered to the consumer compared to the energy consumed to build, operate, and decommission the facility.

  1. Geothermal drilling and completion technology development program. Annual progress report, October 1979-September 1980

    SciTech Connect (OSTI)

    Varnado, S.G. (ed.)

    1980-11-01T23:59:59.000Z

    The progress, status, and results of ongoing research and development (R and D) within the Geothermal Drilling and Completion Technology Development Program are described. The program emphasizes the development of geothermal drilling hardware, drilling fluids, completion technology, and lost circulation control methods. Advanced drilling systems are also under development. The goals of the program are to develop the technology required to reduce well costs by 25% by 1983 and by 50% by 1987.

  2. Geothermal Technology Development Program. Annual progress report, October 1983-September 1984

    SciTech Connect (OSTI)

    Kelsey, J.R. (ed.)

    1985-08-01T23:59:59.000Z

    This report describes the status of ongoing Research and Development (R and D) within the Geothermal Technology Development Program. The work reported is sponsored by the Department of Energy/Geothermal Hydropower Technology Division (DOE/GHTD), with program management provided by Sandia National Laboratories. The program emphasizes research in rock penetration mechanics, fluid technology, borehole mechanics, diagnostics technology, and permeability enhancement. 102 figs., 16 tabs.

  3. Geothermal drilling ad completion technology development program. Semi-annual progress report, April-September 1979

    SciTech Connect (OSTI)

    Varnado, S.G. (ed.)

    1980-05-01T23:59:59.000Z

    The progress, status, and results of ongoing Research and Development (R and D) within the Geothermal Drilling and Completion Technology Development Program are described. The program emphasizes the development of geothermal drilling hardware, drilling fluids, and completion technology. Advanced drilling systems are also under development. The goals of the program are to develop the technology required to reduce well costs by 25% by 1982 and by 50% by 1986.

  4. Using Thermally-Degrading, Partitioning, and Nonreactive Tracers to Determine Temperature Distribution and Fracture/Heat Transfer Surface Area in Geothermal Reservoirs

    Broader source: Energy.gov [DOE]

    DOE Geothermal Peer Review 2010 - Project Summary. The goal of this project is to provide integrated tracer and tracer interpretation tools to facilitate quantitative characterization of temperature distributions and surface area available for heat transfer in EGS.

  5. Temperature, Temperature, Earth, geotherm for

    E-Print Network [OSTI]

    Treiman, Allan H.

    Temperature, Temperature, Earth, geotherm for total global heat flow Venus, geotherm for total global heat flow, 500 Ma #12;Temperature, Temperature, #12;Earth's modern regional continental geotherms Venusian Geotherms, 500 Ma Temperature, Temperature, After Blatt, Tracy, and Owens Petrology #12;Ca2Mg5Si8

  6. Geothermal(Ground-Source)Heat Pumps: Market Status, Barriers to Adoption, and Actions to Overcome Barriers

    SciTech Connect (OSTI)

    Hughes, Patrick [ORNL

    2008-12-01T23:59:59.000Z

    More effective stewardship of our resources contributes to the security, environmental sustainability, and economic well-being of the nation. Buildings present one of the best opportunities to economically reduce energy consumption and limit greenhouse gas emissions. Geothermal heat pumps (GHPs), sometimes called ground-source heat pumps, have been proven capable of producing large reductions in energy use and peak demand in buildings. However, GHPs have received little attention at the policy level as an important component of a national strategy. Have policymakers mistakenly overlooked GHPs, or are GHPs simply unable to make a major contribution to the national goals for various reasons? This brief study was undertaken at DOE's request to address this conundrum. The scope of the study includes determining the status of global GHP markets and the status of the GHP industry and technology in the United States, assembling previous estimates of GHP energy savings potential, identifying key barriers to application of GHPs, and identifying actions that could accelerate market adoption of GHPs. The findings are documented in this report along with conclusions and recommendations.

  7. Interagency Geothermal Coordinating Council Annual Report for Fiscal Year 1989 Draft

    SciTech Connect (OSTI)

    None

    1989-11-21T23:59:59.000Z

    The U.S. Interagency Geothermal Coordinating Council was a multi-agency group charged with identifying and reducing barriers to geothermal energy development in the U.S. Many of the issues covered related to regulations for and progress in the leasing of Federal lands in the West for power development. The IGCC reports are important sources of historical information. Table 1 lists significant events in the history of use of geothermal energy in the U.S., starting in1884. That is useful for tracking which Federal departments and agencies managed aspects of this work over time. Table 2 gives a complete accounting for all Federal outlays for geothermal energy development for FY 1979 -1989, including non-DOE outlays. Table 3 shows the status of the U.S. Geothermal Loan Guarantee Program at end of FY 1989: of the $500 million authorized, $285 million was committed to eight projects, and about $40 million had been paid out on project defaults. An additional $101 million had been repaid by the borrowers. (DJE - 2005)

  8. Final Scientific/Technical Report [Recovery Act: Districtwide Geothermal Heating Conversion

    SciTech Connect (OSTI)

    Chatterton, Mike

    2014-02-12T23:59:59.000Z

    The Recovery Act: Districtwide Geothermal Heating Conversion project performed by the Blaine County School District was part of a larger effort by the District to reduce operating costs, address deferred maintenance items, and to improve the learning environment of the students. This project evaluated three options for the ground source which were Open-Loop Extraction/Re-injection wells, Closed-Loop Vertical Boreholes, and Closed-Loop Horizontal Slinky approaches. In the end the Closed-Loop Horizontal Slinky approach had the lowest total cost of ownership but the majority of the sites associated with this project did not have enough available ground area to install the system so the second lowest option was used (Open-Loop). In addition to the ground source, this project looked at ways to retrofit existing HVAC systems with new high efficiency systems. The end result was the installation of distributed waterto- air heat pumps with water-to-water heat pumps installed to act as boilers/chillers for areas with a high ventilation demand such as they gymnasiums. A number of options were evaluated and the lowest total cost of ownership approach was implemented in the majority of the facilities. The facilities where the lowest total cost of ownership approaches was not selected were done to maintain consistency of the systems from facility to facility. This project had a number of other benefits to the Blaine County public. The project utilizes guaranteed energy savings to justify the levy funds expended. The project also developed an educational dashboard that can be used in the classrooms and to educate the community on the project and its performance. In addition, the majority of the installation work was performed by contractors local to Blaine County which acted as an economic stimulus to the area during a period of recession.

  9. Enhanced Geothermal Systems (EGS) comparing water with CO2 as heat transmission fluids

    E-Print Network [OSTI]

    Pruess, Karsten

    2007-01-01T23:59:59.000Z

    for a hypothetical fractured reservoir with parametersfor the five-spot fractured reservoir problem (full wellSwelling in a Fractured Geothermal Reservoir, Transactions,

  10. Geothermal direct-heat utilization assistance. Quarterly report, July--September 1993

    SciTech Connect (OSTI)

    Not Available

    1993-11-01T23:59:59.000Z

    This report details activities from July through September 1993, Topics addressed are: Technical Assistance; Research and Development Activities; Technology Transfer; Geothermal Progress Monitor; and Personnel.

  11. Manual for the thermal and hydraulic design of direct contact spray columns for use in extracting heat from geothermal brines

    SciTech Connect (OSTI)

    Jacobs, H.R.

    1985-06-01T23:59:59.000Z

    This report outlines the current methods being used in the thermal and hydraulic design of spray column type, direct contact heat exchangers. It provides appropriate referenced equations for both preliminary design and detailed performance. The design methods are primarily empirical and are applicable for us in the design of such units for geothermal application and for application with solar ponds. Methods for design, for both preheater and boiler sections of the primary heat exchangers, for direct contact binary powers plants are included. 23 refs., 8 figs.

  12. Electrical Energy and Demand Savings from a Geothermal Heat Pump ESPC at Fort Polk, LA

    SciTech Connect (OSTI)

    Shonder, John A [ORNL; Hughes, Patrick [ORNL

    1997-06-01T23:59:59.000Z

    At Fort Polk, Louisiana, the space-conditioning systems of an entire city (4,003 military family housing units) have been converted to geothermal heat pumps (GHPs) under an energy savings performance contract. At the same time, other efficiency measures, such as compact fluorescent lights, low-flow hot water outlets, and attic insulation, were installed. Pre- and post-retrofit data were taken at 15-minute intervals on energy flows through the electrical distribution feeders that serve the family housing areas of the post. Fifteen-minute interval data were also taken on energy use from a sample of the residences. The analysis presented in this paper shows that for a typical meteorological year, the retrofits result in an electrical energy savings of approximately 25.6 million kWh, or 32.4% of the pre-retrofit electrical use in family housing. Peak electrical demand has also been reduced by about 6.8 MW, which is 40% of pre-retrofit peak demand. In addition, the retrofits save about 260,000 therms per year of natural gas. It should be noted that the energy savings presented in this document are the 'apparent' energy savings observed in the monitored data and are not to be mistaken for the 'contracted' energy savings used as the basis for payments. To determine the 'contracted' energy savings, the 'apparent' energy savings may require adjustments for such things as changes in indoor temperature performance criteri, addition of ceiling fans, and other factors.

  13. UVM Central Heating & Cooling Plant Annual Maintenance Shutdown 2013 Affected Buildings

    E-Print Network [OSTI]

    Hayden, Nancy J.

    UVM Central Heating & Cooling Plant Annual Maintenance Shutdown 2013 Affected Buildings Sunday 19 heating, hot water and critical air conditioning > NO CAGE WASHING > NO AUTOCLAVES > Given Boiler Plant will be in operation to provide heating, hot water and critical air conditioning > NO CAGE WASHING > NO AUTOCLAVES

  14. ENERGY & ENVIRONMENT DIVISION ANNUAL REPORT 1979

    E-Print Network [OSTI]

    Cairns, E.J.

    2010-01-01T23:59:59.000Z

    R. C. Robertson, "Waste heat rejection from geothermal powerexchanger to recover the waste heat from the exhausted air.water, indus- trial waste heat, geothermal brines, and ocean

  15. GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 16, doi:10.1002/grl.50640, 2013 The role of the geothermal heat flux in driving the abyssal

    E-Print Network [OSTI]

    Ferrari, Raffaele

    . Peltier1 Received 24 April 2013; revised 4 June 2013; accepted 5 June 2013. [1] The results presented-induced circulation and the Antarctic bottom water cell. The enhanced circulation ven- tilates the GHF derived heating. R. Peltier (2013), The role of the geothermal heat flux in driving the abyssal ocean circulation

  16. Development of Design and Simulation Tool for Hybrid Geothermal...

    Broader source: Energy.gov (indexed) [DOE]

    Development of Design and Simulation Tool for Hybrid Geothermal Heat Pump System Development of Design and Simulation Tool for Hybrid Geothermal Heat Pump System This project will...

  17. Geothermal heat pump energy savings performance contract at Fort Polk, LA: Lessons learned

    SciTech Connect (OSTI)

    Shonder, J.A.; Hughes, P.J. [Oak Ridge National Lab., TN (United States); Gordon, R. [Applied Energy Management Techniques, Corvallis, OR (United States); Giffin, T. [SAIC/The Fleming Group, East Syracuse, NY (United States)

    1997-08-01T23:59:59.000Z

    At Fort Polk, LA the space conditioning systems of 4,003 military family housing units have been converted to geothermal heat pumps (GHP) under an energy savings performance contract (ESPC). At the same time, other efficiency measures, such as compact fluorescent lights (CFLs), low-flow shower heads, and attic insulation, were installed. An independent evaluation of the Fort Polk ESPC was carried out. Findings indicate that the project has resulted in a 25.6 million kWh savings in electrical energy use, or 32.4% of the pre-retrofit electrical consumption in family housing, for a typical meteorological year. Peak electrical demand has also been reduced by 6,541 kW, which is 39.6% of the pre-retrofit peak demand. Natural gas savings are about 260,000 therms per year. In addition, the ESPC has allowed the Army to effectively cap its future expenditures for family housing HVAC maintenance at about 77% of its previous costs. Given these successful results, the Fort Polk ESPC can provide a model for other ESPCs in both the public and the private sectors. The purpose of this paper is to outline the method by which the ESPC was engineered and implemented, both from the standpoint of the facility owner (the US Army) and the energy services company (ESCO) which is carrying out the contract. The lessons learned from this experience should be useful to other owners, ESCOs and investors in the implementation of future ESPCs. It should be noted that the energy savings presented in this document are the apparent energy savings observed in the monitored data, and are not to be confused with the contracted energy savings used as the basis for payments. To determine the contracted energy savings, the apparent energy savings may require adjustments for such things as changes in indoor temperature performance criteria, additions of ceiling fans, and other factors.

  18. STANFORD GEOTHERMAL PROGRAM STANFORD UNIVERSITY

    E-Print Network [OSTI]

    Stanford University

    STANFORD GEOTHERMAL PROGRAM STANFORD UNIVERSITY Stanford Geothermal Program Interdisciplinary was provided through the Stanford Geothermal Program under Department of Energy Contract No. DE-AT03-80SF11459 heat sweep model for estimating energy recovery from fractured geothermal reservoirs based on early

  19. South Dakota geothermal handbook

    SciTech Connect (OSTI)

    Not Available

    1980-06-01T23:59:59.000Z

    The sources of geothermal fluids in South Dakota are described and some of the problems that exist in utilization and materials selection are described. Methods of heat extraction and the environmental concerns that accompany geothermal fluid development are briefly described. Governmental rules, regulations and legislation are explained. The time and steps necessary to bring about the development of the geothermal resource are explained in detail. Some of the federal incentives that encourage the use of geothermal energy are summarized. (MHR)

  20. Exploration and drilling for geothermal heat in the Capital District, New York. Volume 4. Final report

    SciTech Connect (OSTI)

    Not Available

    1983-08-01T23:59:59.000Z

    The Capital District area of New York was explored to determine the nature of a hydrothermal geothermal system. The chemistry of subsurface water and gas, the variation in gravity, magnetism, seismicity, and temperature gradients were determined. Water and gas analyses and temperature gradient measurements indicate the existence of a geothermal system located under an area from Ballston Spa, southward to Altamont, and eastward toward Albany. Gravimetric and magnetic surveys provided little useful data but microseismic activity in the Altamont area may be significant. Eight wells about 400 feet deep, one 600 feet and one 2232 feet were drilled and tested for geothermal potential. The highest temperature gradients, most unusual water chemistries, and greatest carbon dioxide exhalations were observed in the vicinity of the Saratoga and McGregor faults between Saratoga Springs and Schenectady, New York, suggesting some fault control over the geothermal system. Depths to the warm fluids within the system range from 500 meters (Ballston Spa) to 2 kilometers (Albany).

  1. Exploration and drilling for geothermal heat in the Capital District, New York. Final report

    SciTech Connect (OSTI)

    Not Available

    1983-08-01T23:59:59.000Z

    The Capital District area of New York was explored to determine the nature of a hydrothermal geothermal system. The chemistry of subsurface water and gas, the variation in gravity, magnetism, seismicity, and temperature gradients were determined. Water and gas analyses and temperature gradient measurements indicate the existence of a geothermal system located under an area from Ballston Spa, southward to Altamont, and eastware toward Albany. Gravimetric and magnetic surveys provided little useful data but microseismic activity in the Altamont area may be significant. Eight wells about 400 feet deep, one 600 feet and one 2232 feet were drilled and tested for geothermal potential. The highest temperature gradients, most unusual water chemistries, and greatest carbon dioxide exhalations were observed in the vicinity of the Saratoga and McGregor faults between Saratoga Springs and Schenectady, New York, suggesting some fault control over the geothermal system. Depths to the warm fluids within the system range from 500 meters (Ballston Spa) to 2 kilometers (Albany).

  2. HEAT AND MASS TRANSFER IN A FAULT-CONTROLLED GEOTHERMAL RESERVOIR CHARGED AT CONSTANT PRESSURE

    E-Print Network [OSTI]

    Goyal, K.P.

    2013-01-01T23:59:59.000Z

    Modelling Studies of the Cerro Prieto Reservoir, LawrenceBerkeley, LBL-9590, Cerro Prieto-14, 11, February 1980. 15.L. , "Geology of the Cerro Prieto Geothermal Field," in the

  3. Temperatures, heat flow, and water chemistry from drill holes in the Raft River geothermal system, Cassia County, Idaho

    SciTech Connect (OSTI)

    Nathenson, M.; Urban, T.C.; Diment, W.H.; Nehring, N.L.

    1980-01-01T23:59:59.000Z

    The Raft River area of Idaho contains a geothermal system of intermediate temperatures (approx. = 150/sup 0/C) at depths of about 1.5 km. Outside of the geothermal area, temperature measurements in three intermediate-depth drill holes (200 to 400 m) and one deep well (1500 m) indicate that the regional conductive heat flow is about 2.5 ..mu..cal/cm/sup 2/ sec or slightly higher and that temperature gradients range from 50/sup 0/ to 60/sup 0/C/km in the sediments, tuffs, and volcanic debris that fill the valley. Within and close to the geothermal system, temperature gradients in intermediate-depth drill holes (100 to 350 m) range from 120/sup 0/ to more than 600/sup 0/C/km, the latter value found close to an artesian hot well that was once a hot spring. Temperatures measured in three deep wells (1 to 2 km) within the geothermal area indicate that two wells are in or near an active upflow zone, whereas one well shows a temperature reversal. Assuming that the upflow is fault controlled, the flow is estimated to be 6 liter/sec per kilometer of fault length. From shut-in pressure data and the estimated flow, the permeability times thickness of the fault is calculated to be 2.4 darcy m. Chemical analyses of water samples from old flowing wells, recently completed intermediate-depth drill holes, and deep wells show a confused pattern. Geothermometer temperatures of shallow samples suggest significant re-equilibration at temperatures below those found in the deep wells. Silica geothermometer temperatures of water samples from the deep wells are in reasonable agreement with measured temperatures, whereas Na-K-Ca temperatures are significantly higher than measured temperatures. The chemical characteristics of the water, as indicated by chloride concentration, are extremely variable in shallow and deep samples. Chloride concentrations of the deep samples range from 580 to 2200 mg/kg.

  4. United States Gulf Coast geopressured-geothermal program. Annual report, 1 November 1980-31 October 1981

    SciTech Connect (OSTI)

    Dorfman, M.H.; Morton, R.A.; Dunlap, H.F.; Frederick, D.O.; Gray, K.E.; Peters, E.J.; Sepehrnoori, K.; Thompson, T.W.

    1982-07-01T23:59:59.000Z

    The following are included: objectives, overview, coordination assistance, compaction measurements on Texas Gulf Coast Sandstones and Shales; US Gulf Coast Geopressured-Geothermal Aquifer simulation, Preliminary Review of Subsidence Insurance Issues, Geopressured-Geothermal Information System, and Study of Log Derived Water Resistivity Values in Geopressured Geothermal Formations. (MHR)

  5. 7-88 A geothermal power plant uses geothermal liquid water at 160C at a specified rate as the heat source. The actual and maximum possible thermal efficiencies and the rate of heat rejected from this power plant

    E-Print Network [OSTI]

    Bahrami, Majid

    7-31 7-88 A geothermal power plant uses geothermal liquid water at 160șC at a specified rate and potential energy changes are zero. 3 Steam properties are used for geothermal water. Properties Using saturated liquid properties, the source and the sink state enthalpies of geothermal water are (Table A-4) k

  6. Thermal History of the Felsite Unit, Geysers Geothermal Field, From Thermal Modeling of 40Ar/39Ar Incremental Heating Data

    SciTech Connect (OSTI)

    T. M. Harrison (U of California); G. B. Dalrymple (Oregon State U); J. B. Hulen (U of Utah); M. A. Lanphere; M. Grove; O. M. Lovera

    1999-08-19T23:59:59.000Z

    An Ar-40/Ar-39 and U-Pb study was performed of the Geysers plutonic complex of the Geysers Geothermal Field in California. Sixty-nine ion microprobe spot analyses of zircons from four granite samples from the plutonic complex that underlies the Geysers geothermal field yielded Pb-207/Pb-206 vs. U-238/Pb-206 concordia ages ranging from 1.13 {+-} 0.04 Ma to 1.25 {+-} 0.04 Ma. The U-Pb ages coincide closely with Ar-40/Ar-39 age spectrum plateau and ''terminal'' ages from coexisting K-feldspars and with the eruption ages of overlying volcanic rocks. The data indicate that the granite crystallized at 1.18 Ma and had cooled below 350 C by {approximately}0.9-1.0 Ma. Interpretation of the feldspar Ar-40/Ar-39 age data using multi-diffusion domain theory indicates that post-emplacement rapid cooling was succeeded either by slower cooling from 350-300 C between 1.0 and 0.4 Ma or transitory reheating to 300-350 C at about 0.4-0.6 Ma. Heat flow calculations constrained with K-feldspar thermal histories and the pre sent elevated regional heal flow anomaly demonstrate that appreciable heat input from sources external to the known Geysers plutonic complex is required to maintain the geothermal system. This requirement is satisfied by either a large, underlying, convecting magma chamber (now solidified) emplaced at 1.2 Ma or episodic intrusion of smaller bodies from 1.2-0.6 Ma.

  7. Geothermal: Sponsored by OSTI -- Low-Temperature Enhanced Geothermal...

    Office of Scientific and Technical Information (OSTI)

    Low-Temperature Enhanced Geothermal System using Carbon Dioxide as the Heat-Transfer Fluid Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic...

  8. STANFORD GEOTHERMAL PROGRAM STANFORD UNIVERSITY

    E-Print Network [OSTI]

    Stanford University

    STANFORD GEOTHERMAL PROGRAM STANFORD UNIVERSITY STANFORD, CALIFORNIA 94305 SGP-TR-35 SECOND ANNUAL #12;INTRODUCTION The research e f f o r t of t h e Stanford Geothermal Program is focused on geothermal reservoir engineering. The major o b j e c t i v e of t h e protiram is t o develop techniques f o

  9. Susanville District Heating District Heating Low Temperature...

    Open Energy Info (EERE)

    Susanville District Heating District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Susanville District Heating District Heating Low Temperature...

  10. Heat powered refrigeration compressor. Semi-annual technical report

    SciTech Connect (OSTI)

    Goad, R.R.

    1981-01-01T23:59:59.000Z

    The objective of this program is to develop and improve the design of previously started prototypes of the Heat Powered Refrigeration Compressor. To build this prototype and ready it for testing by the University of Evansville is another goal. This prototype will be of similar capacity as the compressor that will eventually be commercially produced. This unit can operate on almost any moderate temperature water heat source. This heat source could include such applications as industrial waste heat, solar, wood burning stove, resistance electrical heat produced by a windmill, or even perhaps heat put out by the condenser of another refrigeration system. Work performed in the past four months has consisted of: engineering of HX-1; comparisons of specifications from different companies to ensure state of the art applications of parts for project; coordinating project requirements with machine shop; designing condenser; and partial assembly of HX-1.

  11. Geothermal space heating applications for the Fort Peck Indian Reservation in the vicinity of Poplar, Montana. Final report, August 20, 1979-May 31, 1980

    SciTech Connect (OSTI)

    Birman, J.H.; Cohen, J.; Spencer, G.J.

    1980-10-01T23:59:59.000Z

    The results of a first-stage evaluation of the overall feasibility of utilizing geothermal waters from the Madison aquifer in the vicinity of Poplar, Montana for space heating are reported. A preliminary assessment of the resource characteristics, a preliminary design and economic evaluation of a geothermal heating district and an analysis of environmental and institutional issues are included. Preliminary investigations were also made into possible additional uses of the geothermal resource, including ethanol production. The results of the resource analysis showed that the depth to the top of the Madison occurs at approximately 5,500 feet at Poplar, and the Madison Group is characterized by low average porosity (about 5 percent) and permeability (about 0.004 gal/day-ft), and by hot water production rates of a few tens of gallons per minute from intervals a few feet thick. The preliminary heating district system effort for the town of Poplar included design heat load estimates, a field development concept, and preliminary design of heat extraction and hot water distribution systems. The environmental analysis, based on current data, indicated that resource development is not expected to result in undue impacts. The institutional analysis concluded that a Tribal geothermal utility could be established, but no clear-cut procedure can be identified without a more comprehensive evaluation of legal and jurisdistional issues. The economic evaluation found that, if the current trend of rapidly increasing prices for fossil fuels continues, a geothermal heating district within Poplar could be a long-term, economically attractive alternative to current energy sources.

  12. City of Klamath Falls District Heating District Heating Low Temperatur...

    Open Energy Info (EERE)

    Geothermal Facility Jump to: navigation, search Name City of Klamath Falls District Heating District Heating Low Temperature Geothermal Facility Facility City of Klamath Falls...

  13. Cost benefits from applying advanced heat rejection concepts to a wet/dry-cooled binary geothermal plant

    SciTech Connect (OSTI)

    Faletti, D.W.

    1981-03-01T23:59:59.000Z

    Optimized ammonia heat rejection system designs were carried out for three water allocations equivalent to 9, 20, and 31% of that of a 100% wet-cooled plant. The Holt/Procon design of a 50-MWe binary geothermal plant for the Heber site was used as a design basis. The optimization process took into account the penalties for replacement power, gas turbine capital, and lost capacity due to increased heat rejection temperature, as well as added base plant capacity and fuel to provide fan and pump power to the heat rejection system. Descriptions of the three plant designs are presented. For comparison, a wet tower loop was costed out for a 100% wet-cooled plant using the parameters of the Holt/Procon design. Wet/dry cooling was found to increase the cost of electricity by 28% above that of a 100% wet-cooled plant for all three of the water allocations studied (9, 20, and 31%). The application selected for a preconceptual evaluation of the BCT (binary cooling tower) system was the use of agricultural waste water from the New River, located in California's Imperial Valley, to cool a 50-MWe binary geothermal plant. Technical and cost evaluations at the preconceptual level indicated that performance estimates provided by Tower Systems Incorporated (TSI) were reasonable and that TSI's tower cost, although 2 to 19% lower than PNL estimates, was also reasonable. Electrical cost comparisonswere made among the BCT system, a conventional 100% wet system, and a 9% wet/dry ammonia system, all using agricultural waste water with solar pond disposal. The BCT system cost the least, yielding a cost of electricity only 13% above that of a conventional wet system using high quality water and 14% less than either the conventional 100% wet or the 9% wet/dry ammonia system.

  14. The Earth-Coupled or Geothermal Heat Pump Air Conditioning System 

    E-Print Network [OSTI]

    Wagers, H. L.; Wagers, M. C.

    1985-01-01T23:59:59.000Z

    pump and the desuperheater as the latest developments in energy efficient air conditioning and water heating....

  15. Monitored energy use of homes with geothermal heat pumps: A compilation and analysis of performance. Final report

    SciTech Connect (OSTI)

    Stein, J.R.; Meier, A.

    1997-12-01T23:59:59.000Z

    The performance of residential geothermal heat pumps (GHPs) was assessed by comparing heating, ventilation, and air conditioning (HVAC) system and whole house energy use of GHP houses and control houses. Actual energy savings were calculated and compared to expected savings (based on ARI ratings and literature) and predicted savings (based on coefficient of performance - COP - measurements). Differences between GHP and control houses were normalized for heating degree days and floor area or total insulation value. Predicted savings were consistently slightly below expected savings but within the range of performance cited by the industry. Average rated COP was 3.4. Average measured COP was 3.1. Actual savings were inconsistent and sometimes significantly below predicted savings. No correlation was found between actual savings and actual energy use. This suggests that factors such as insulation and occupant behavior probably have greater impact on energy use than type of HVAC equipment. There was also no clear correlation between climate and actual savings or between climate and actual energy use. There was a trend between GHP installation date and savings. Newer units appear to have lower savings than some of the older units which is opposite of what one would expect given the increase in rated efficiencies of GHPs. There are a number of explanations for why actual savings are repeatedly below rated savings or predicted savings. Poor ground loop sizing or installation procedures could be an issue. Given that performance is good compared to ASHPs but poor compared to electric resistance homes, the shortfall in savings could be due to duct leakage. The takeback effect could also be a reason for lower than expected savings. Occupants of heat pump homes are likely to heat more rooms and to use more air-conditioning than occupants of electric resistance homes. 10 refs., 17 figs., 10 tabs.

  16. Enhanced Geothermal in Nevada: Extracting Heat From the Earth to Generate

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube|6721 FederalTexas Energyof 2005 atDepartmentEnhanced Geothermal

  17. Development of Design and Simulation Tool for Hybrid Geothermal Heat Pump

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOE Facility DatabaseMichigan: EnergyKansas:DetroitOpenSystem Geothermal Project

  18. Un Seminar On The Utilization Of Geothermal Energy For Electric...

    Open Energy Info (EERE)

    Un Seminar On The Utilization Of Geothermal Energy For Electric Power Production And Space Heating, Florence 1984, Section 2- Geothermal Resources Jump to: navigation, search...

  19. Geothermal: Sponsored by OSTI -- Microhole arrays for improved...

    Office of Scientific and Technical Information (OSTI)

    Microhole arrays for improved heat mining from enhanced geothermal systems Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About...

  20. State Regulatory Oversight of Geothermal

    E-Print Network [OSTI]

    State Regulatory Oversight of Geothermal Heat Pump Installations: 2012 Kevin McCray Executive of this project was to update previous research accomplished by the Geothermal Heat Pump Consortium (GHPC of ground-source heat pump (GSHP) systems. The work was to provide insight into existing and anticipated

  1. Geothermal Space Heating Applications for the Fort Peck Indian Reservation in the Vicinity of Poplar, Montana. Phase I Report, August 20, 1979--December 31, 1979

    SciTech Connect (OSTI)

    Spencer, Glenn J.; Cohen, M. Jane

    1980-01-04T23:59:59.000Z

    This engineering and economic study is concerned with the question of using the natural heat of the earth, or geothermal energy, as an alternative to other energy sources such as oil and natural gas which are increasing in cost. This document represents a quarterly progress report on the effort directed to determine the availability of geothermal energy within the Fort Peck Indian Reservation, Montana (Figure 1), and the feasibility of beneficial use of this resource including engineering, economic and environmental considerations. The project is being carried out by the Tribal Research office, Assinboine and Sioux Tribes, Fort Peck Indian Reservation, Poplar, Montana under a contract to the United States Department of Energy. PRC TOUPS, the major subcontractor, is responsible for engineering and economic studies and the Council of Energy Resource Tribes (CERT) is providing support in the areas of environment and finance, the results of which will appear in the Final Report. The existence of potentially valuable geothermal resource within the Fort Peck Indian Reservation was first detected from an analysis of temperatures encountered in oil wells drilled in the area. This data, produced by the Montana Bureau of Mines and Geology, pointed to a possible moderate to high temperature source near the town of Poplar, Montana, which is the location of the Tribal Headquarters for the Fort Peck Reservation. During the first phase of this project, additional data was collected to better characterize the nature of this geothermal resource and to analyze means of gaining access to it. As a result of this investigation, it has been learned that not only is there a potential geothermal resource in the region but that the producing oil wells north of the town of Poplar bring to the surface nearly 20,000 barrels a day (589 gal/min) of geothermal fluid in a temperature range of 185-200 F. Following oil separation, these fluids are disposed of by pumping into a deep groundwater aquifer. While beneficial uses may be found for these geothermal fluids, even higher temperatures (in excess of 260 F) may be found directly beneath the town of Poplar and the new residential development which is being planned in the area. This project is primarily concerned with the use of geothermal energy for space heating and domestic hot water for the town of Poplar (Figure 2 and Photograph 1) and a new residential development of 250 homes which is planned for an area approximately 4 miles east of Poplar along U.S. Route 2 (Figure 2 and Photograph 2). A number of alternative engineering design approaches have been evaluated, and the cost of these systems has been compared to existing and expected heating costs.

  2. National Geothermal Data System: Transforming the Discovery, Access, and Analytics of Data for Geothermal Exploration

    SciTech Connect (OSTI)

    Patten, Kim [Arizona Geological Survey

    2013-05-01T23:59:59.000Z

    Compendium of Papers from the 38th Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California February 11-13, 2013 The National Geothermal Data System (NGDS) is a distributed, interoperable network of data collected from state geological surveys across all fifty states and the nation’s leading academic geothermal centers. The system serves as a platform for sharing consistent, reliable, geothermal-relevant technical data with users of all types, while supplying tools relevant for their work. As aggregated data supports new scientific findings, this content-rich linked data ultimately broadens the pool of knowledge available to promote discovery and development of commercial-scale geothermal energy production. Most of the up-front risks associated with geothermal development stem from exploration and characterization of subsurface resources. Wider access to distributed data will, therefore, result in lower costs for geothermal development. NGDS is on track to become fully operational by 2014 and will provide a platform for custom applications for accessing geothermal relevant data in the U.S. and abroad. It is being built on the U.S. Geoscience Information Network (USGIN) data integration framework to promote interoperability across the Earth sciences community. The basic structure of the NGDS employs state-of-the art informatics to advance geothermal knowledge. The following four papers comprising this Open-File Report are a compendium of presentations, from the 38th Annual Workshop on Geothermal Reservoir Engineering, taking place February 11-13, 2013 at Stanford University, Stanford, California. “NGDS Geothermal Data Domain: Assessment of Geothermal Community Data Needs,” outlines the efforts of a set of nationwide data providers to supply data for the NGDS. In particular, data acquisition, delivery, and methodology are discussed. The paper addresses the various types of data and metadata required and why simple links to existing data are insufficient for promoting geothermal exploration. Authors of this paper are Arlene Anderson, US DOE Geothermal Technologies Office, David Blackwell, Southern Methodist University (SMU), Cathy Chickering (SMU), Toni Boyd, Oregon Institute of Technology’s GeoHeat Center, Roland Horne, Stanford University, Matthew MacKenzie, Uberity, Joe Moore, University of Utah, Duane Nickull, Uberity, Stephen Richard, Arizona Geological Survey, and Lisa Shevenell, University of Nevada, Reno. “NGDS User Centered Design: Meeting the Needs of the Geothermal Community,” discusses the user- centered design approach taken in the development of a user interface solution for the NGDS. The development process is research based, highly collaborative, and incorporates state-of-the-art practices to ensure a quality user interface for the widest and greatest utility. Authors of this paper are Harold Blackman, Boise State University, Suzanne Boyd, Anthro-Tech, Kim Patten, Arizona Geological Survey, and Sam Zheng, Siemens Corporate Research. “Fueling Innovation and Adoption by Sharing Data on the DOE Geothermal Data Repository Node on the National Geothermal Data System,” describes the motivation behind the development of the Geothermal Data Repository (GDR) and its role in the NGDS. This includes the benefits of using the GDR to share geothermal data of all types and DOE’s data submission process. Authors of this paper are Jon Weers, National Renewable Energy Laboratory and Arlene Anderson, US DOE Geothermal Technologies Office. Finally, “Developing the NGDS Adoption of CKAN for Domestic & International Data Deployment,” provides an overview of the “Node-In-A-Box” software package designed to provide data consumers with a highly functional interface to access the system, and to ease the burden on data providers who wish to publish data in the system. It is important to note that this software package constitutes a reference implementation and that the NGDS architecture is based on open standards, which means other server software can make resources available, a

  3. Hot dry rock geothermal energy development program: Annual report, Fiscal year 1986

    SciTech Connect (OSTI)

    Dash, Z.V.; Grant, T.; Jones, G.; Murphy, H.D.; Wilson, M.G.

    1989-02-01T23:59:59.000Z

    Preparation, execution, and analysis of a 30-day Initial Closed-Loop Flow Test (ICFT) of the Phase II reservoir were the primary objectives of the Hot Dry Rock Program in fiscal year 1986. The ICFT successfully tested the Phase II heat-extraction loop with the injection of 37,000 m/sup 3/ of cold water and production of 23,000 m/sup 3/ of hot water, extracting up to 10 MW/sub t/ when production reached 0.0139 m/sup 3//s at 192/degree/C. By the end of the test, water loss rate has decreased to 26% and a significant portion of the injected water had been recovered, 66% during the test and an additional 20% during subsequent venting. Geochemical, tracer, and seismic analyses suggest reservoir fracture volume was growing throughout the test. A new technique, the ''three-point'' method, was developed to determine locations and orientations of seismically active planes. Fault or joint planes are identified in what superficially appears to be an amorphous microearthquake location set. Five planes were determined when the three-point method was applied to a location data set for the massive hydraulic-fracturing experiment conducted in 1983. 23 refs., 19 figs., 3 tabs.

  4. South Dakota Geothermal Energy Handbook

    SciTech Connect (OSTI)

    Not Available

    1980-06-01T23:59:59.000Z

    The sources of geothermal fluids in South Dakota are described and some of the problems that exist in utilization and materials selection are detailed. Methods of heat extraction and the environmental concerns that accompany geothermal fluid development are briefly described. Governmental rules, regulations and legislation are explained. The time and steps necessary to bring about the development of the geothermal resources are explained in detail. Some of the federal incentives that encourage the use of geothermal energy are summarized.

  5. Geothermal Resources and Technologies | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    from heat and hot water found within the earth. Federal agencies can harness geothermal energy for heating and cooling air and water, as well as for electricity production....

  6. THE DEFINITION OF ENGINEERING DEVELOPMENT AND RESEARCH PROBLEMS RELATING TO THE USE OF GEOTHERMAL FLUIDS FOR ELECTRIC POWER GENERATION AND NONELECTRIC HEATING

    E-Print Network [OSTI]

    Apps, J.A.

    2011-01-01T23:59:59.000Z

    Geosciences relating to geothermal energy a. ThermodynamicsI 2omputer modeling of geothermal energy extraction systemstubes used. in geothermal energy plants Feasibility study of

  7. Enhanced geothermal systems (EGS) with CO2 as heat transmission fluid--A scheme for combining recovery of renewable energy with geologic storage of CO2

    E-Print Network [OSTI]

    Pruess, K.

    2010-01-01T23:59:59.000Z

    D.W. A Hot Dry Rock Geothermal Energy Concept UtilizingThe Future of Geothermal Energy, Massachusetts Institute ofcombine recovery of geothermal energy with simultaneous

  8. Enhanced geothermal systems (EGS) with CO2 as heat transmission fluid--A scheme for combining recovery of renewable energy with geologic storage of CO2

    E-Print Network [OSTI]

    Pruess, K.

    2010-01-01T23:59:59.000Z

    Interactions in Enhanced Geothermal Systems (EGS) with CO 2Fluid, Proceedings, World Geothermal Congress 2010, Bali,Remain? Transactions, Geothermal Resources Council, Vol. 17,

  9. THE DEFINITION OF ENGINEERING DEVELOPMENT AND RESEARCH PROBLEMS RELATING TO THE USE OF GEOTHERMAL FLUIDS FOR ELECTRIC POWER GENERATION AND NONELECTRIC HEATING

    E-Print Network [OSTI]

    Apps, J.A.

    2011-01-01T23:59:59.000Z

    public acceptance of geothermal energy and, for that matter,Geosciences relating to geothermal energy a. ThermodynamicsI 2omputer modeling of geothermal energy extraction systems

  10. MATHEMATICAL MODELING OF THE BEHAVIOR OF GEOTHERMAL SYSTEMS UNDER EXPLOITATION

    E-Print Network [OSTI]

    Bodvarsson, G.S.

    2010-01-01T23:59:59.000Z

    U. S. Department of Energy, Geothermal direct h e a t a p pU S Department of Energy, Geothermal Energy Division, 87,homes are heated by geothermal energy, and there are plans t

  11. to bring down the largest single cost associated with tapping geothermal heat,and conducting

    E-Print Network [OSTI]

    Gildor, Hezi

    expand production tax credits. Currently,the U.S.produces 2,800 megawatts of electricity annually from,Staff Writer The expected response of the Earth's cryo- sphere to global warming is a critical open research production tax credit of 1.8 cents per kilowatt hour for new production for wind facilities should also

  12. Geothermal Energy: Current abstracts

    SciTech Connect (OSTI)

    Ringe, A.C. (ed.)

    1988-02-01T23:59:59.000Z

    This bulletin announces the current worldwide information available on the technologies required for economic recovery of geothermal energy and its use as direct heat or for electric power production. (ACR)

  13. Geothermal: Sponsored by OSTI -- Trace metal characterization...

    Office of Scientific and Technical Information (OSTI)

    Trace metal characterization and speciation in geothermal effluent by multiple scanning anodic stripping voltammetry and atomic absorpotion analysis. Annual progress report...

  14. Geothermal Heat Pump System for the New 500-bed 200,000 SF Student...

    Broader source: Energy.gov (indexed) [DOE]

    Heat Pump System for the New 500-bed 200,000 SF Student Housing Project at the University at Albany's Main Campus Principal Investigator: Indumathi Lnu Presenters: Indumathi Lnu &...

  15. Litchfield Correctional Center District Heating Low Temperature...

    Open Energy Info (EERE)

    Correctional Center District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Litchfield Correctional Center District Heating Low Temperature Geothermal...

  16. Annual Energy Outlook 2012

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    consumption for geothermal heat pumps, buildings photovoltaic systems, and solar thermal water heaters. 14 Includes consumption of energy by electricity-only and combined heat and...

  17. Geothermal heating project at St. Mary's Hospital, Pierre, South Dakota. Final report

    SciTech Connect (OSTI)

    Not Available

    1984-12-01T23:59:59.000Z

    St. Mary's Hospital, Pierre, South Dakota, with the assistance of the US Department of Energy, drilled a 2176 ft well into the Madison Aquifer ot secure 108/sup 0/F artesian flow water at 385 gpm (475 psig shut-in pressure). The objective was to provide heat for domestic hot water and to space heat 163,768 sq. ft. Cost savings for the first three years were significant and, with the exception of a shutdown to replace some corroded pipe, the system has operated reliably and continuously for the last four years.

  18. Pagosa Springs District Heating District Heating Low Temperature...

    Open Energy Info (EERE)

    Pagosa Springs District Heating District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Pagosa Springs District Heating District Heating Low...

  19. ANNUAL HEATING AND COOLING REQUIREMENTS AND DESIGN DAY PERFORMANCE FOR A RESIDENTIAL MODEL IN SIX CLIMATES: A COMPARISON OF NBSLD, BLAST 2, AND DOE-2.1

    E-Print Network [OSTI]

    Carroll, William L.

    2011-01-01T23:59:59.000Z

    Lf.20 i 2.4E (1) Cumulative heating and cooling loads only.at the American Society of Heating, Refrigerating, and AirDecember 3-5, 1979 ANNUAL HEATING AND COOLING REQUIREMENTS

  20. GEOTHERMAL ENERGY DEVELOPMENT FROM THE SALTON TROUGH TO THE HIGH CASCADES

    E-Print Network [OSTI]

    Goldstein, N.E.

    2011-01-01T23:59:59.000Z

    785-805 Table 1 MT. HOOD GEOTHERMAL PROJECT Y A. GEOLOGY ai n Transactions o f the Geothermal Resource Council AnnualCAPTIONS Figure 1 of the LBL Geothermal Energy A simp1 i f i

  1. GEOTHERMAL ENERGY DEVELOPMENT FROM THE SALTON TROUGH TO THE HIGH CASCADES

    E-Print Network [OSTI]

    Goldstein, N.E.

    2011-01-01T23:59:59.000Z

    785-805 Table 1 MT. Y HOOD GEOTHERMAL PROJECT A. a GEOLOGYi n Transactions o f the Geothermal Resource Council AnnualCAPTIONS Figure 1 of the LBL Geothermal Energy A simp1 i f i

  2. SOLAR ENERGY PROGRAM. CHAPTER FROM THE ENERGY AND ENVIRONMENT ANNUAL REPORT 1978

    E-Print Network [OSTI]

    authors, Various

    2011-01-01T23:59:59.000Z

    energy sources such as solar heated industrial waste heat, geothermal water, brines, and ocean thermal

  3. SOLAR ENERGY PROGRAM: CHAPTER FROM THE ENERGY AND ENVIRONMENT ANNUAL REPORT 1979

    E-Print Network [OSTI]

    Authors, Various

    2010-01-01T23:59:59.000Z

    energy sources such as solar heated water, indus- trial waste heat, geothermal brines, and ocean thermal

  4. Imperial County geothermal development. Quarterly report, April 1-June 30, 1982

    SciTech Connect (OSTI)

    Not Available

    1982-06-30T23:59:59.000Z

    The activities of the Geothermal Office during the quarter are discussed, including: important geothermal events, geothermal waste disposal, a grant award by the California Energy Commission, the geothermal development meeting, and the current status of geothermal development in Imperial County. Activities of the Geothermal Planner are addressed, including permits, processing of EIR's, and other planning activities. Progress on the direct heat study is reported.

  5. Osmotic Heat Engine for Energy Production from Low Temperature Geothermal Resources

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOrigin of Contamination in ManyDepartment ofOil'sEnergy8OrganicOsmotic Heat Engine for Energy

  6. Appraisal of the use of geothermal energy in state-owned buildings in Colorado

    SciTech Connect (OSTI)

    Meyer, R.T.; Coe, B.A.; Dick, J.D.

    1981-01-30T23:59:59.000Z

    An appraisal of the use of geothermal energy for space heating requirements for selected state-owned buildings in six communities in Colorado is presented. The appraisal addresses several components of a feasibility study for geothermal applications, including resource assessment, pipeline rights-of-way, well design and drilling program, conceptual engineering designs for retrofits of building heating systems, evaluations of economic feasibility, institutional requirements, and environmental considerations. Economic feasibility is determined from evaluation of four economic measures: a simple payback period in years; twenty-year annualized system costs (geothermal system versus conventional system); total twenty-year undiscounted energy savings; and total twenty-year present value energy savings. The results of the analyses of each feasibility component are finally ranked, using a weighting system, to arrive at an order ranking of the eleven state-owned buildings for overall feasibility. The relative total feasibility rankings and the absolute evaluations of economic competitiveness with the existing conventional-fuel heating systems show that several of the state facilities are likely candidates for conversion to geothermal hot water heating systems. The best candidate by far is the Colorado State Reformatory at Buena Vista. The geothermal resource at Buena Vista (Cottonwood Canyon and Chalk Creek) is a high quality resource with high water temperatures and a water quality adequate for direct flow through the building heating units.

  7. Geothermal direct use developments in the United States

    SciTech Connect (OSTI)

    Lienau, P.J.; Culver, G.; Lund, J.W.

    1988-08-01T23:59:59.000Z

    Direct heat use of geothermal energy in the United States is recognized as one of the alternative energy resources that has proven itself technically and economically, and is commercially available. Developments include space conditioning of buildings, district heating, groundwater heat pumps, greenhouse heating, industrial processing, aquaculture, and swimming pool heating. Forty-four states have experienced significant geothermal direct use development in the last ten years. The total installed capacity is 5.7 billion Btu/hr (1700 MW/sub t/), with an annual energy use of nearly 17,000 billion Btu/yr (4.5 million barrels of oil energy equivalent). In this report we provide an overview of how and where geothermal energy is used, the extent of that use, the economics and growth trends. The data is based on an extensive site data gathering effort by the Geo-Heat Center in the spring of 1988, under contract to the US Department of Energy. 100 refs., 4 figs., 4 tabs.

  8. Electrical energy and demand savings from a geothermal heat pump energy savings performance contract at Ft. Polk, LA

    SciTech Connect (OSTI)

    Shonder, J.A.; Hughes, P.J.

    1997-06-01T23:59:59.000Z

    At Fort Polk, LA the space conditioning systems of an entire city (4,003 military family housing units) have been converted to geothermal heat pumps (GHP) under an energy savings performance contract. At the same time, other efficiency measures such as compact fluorescent lights (CFLs), low-flow hot water outlets, and attic insulation were installed. Pre- and post-retrofit data were taken at 15-minute intervals on energy flows through the electrical distribution feeders that serve the family housing areas of the post. 15-minute interval data was also taken on energy use from a sample of the residences. This paper summarizes the electrical energy and demand savings observed in this data. Analysis of feeder-level data shows that for a typical year, the project will result in a 25.6 million kWh savings in electrical energy use, or 32.4% of the pre-retrofit electrical consumption in family housing. Results from analysis of building-level data compare well with this figure. Analysis of feeder-level data also shows that the project has resulted in a reduction of peak electrical demand of 6,541 kW, which is 39.6% of the pre-retrofit peak electrical demand. In addition to these electrical savings, the facility is also saving an estimated 260,000 therms per year of natural gas. It should be noted that the energy savings presented in this document are the apparent energy savings observed in the monitored data, and are not to be confused with the contracted energy savings used as the basis for payments. To determine the contracted energy savings, the apparent energy savings may require adjustments for such things as changes in indoor temperature performance criteria, additions of ceiling fans, and other factors.

  9. Geothermal Energy Association Recognizes the National Geothermal...

    Energy Savers [EERE]

    Geothermal Energy Association Recognizes the National Geothermal Data System Geothermal Energy Association Recognizes the National Geothermal Data System July 29, 2014 - 8:20am...

  10. US Geothermal, Inc. | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    US Geothermal, Inc. US Geothermal, Inc. US Geothermal, Inc. US Geothermal, Inc. US Geothermal, Inc. US Geothermal, Inc. US Geothermal, Inc. US Geothermal, Inc. US Geothermal, Inc....

  11. Economic predictions for heat mining : a review and analysis of hot dry rock (HDR) geothermal energy technology

    E-Print Network [OSTI]

    Tester, Jefferson W.

    1990-01-01T23:59:59.000Z

    The main objectives of this study were first, to review and analyze several economic assessments of Hot Dry Rock (HDR) geothermal energy systems, and second, to reformulate an economic model for HDR with revised cost components.

  12. akutan geothermal prospects: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ground Source, GeoExchange. The feds call it geothermal heat pumps IS GEOTHERMAL HEAT PUMP TECHNOLOGY ??? Answer: It is a 60 year old technology 12;FACT GHP's were first...

  13. ahuachapan geothermal field: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ground Source, GeoExchange. The feds call it geothermal heat pumps IS GEOTHERMAL HEAT PUMP TECHNOLOGY ??? Answer: It is a 60 year old technology 12;FACT GHP's were first...

  14. azufres geothermal field: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ground Source, GeoExchange. The feds call it geothermal heat pumps IS GEOTHERMAL HEAT PUMP TECHNOLOGY ??? Answer: It is a 60 year old technology 12;FACT GHP's were first...

  15. altheim geothermal plant: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ground Source, GeoExchange. The feds call it geothermal heat pumps IS GEOTHERMAL HEAT PUMP TECHNOLOGY ??? Answer: It is a 60 year old technology 12;FACT GHP's were first...

  16. advanced geothermal primary: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Ground Source, GeoExchange. The feds call it geothermal heat pumps IS GEOTHERMAL HEAT PUMP TECHNOLOGY ??? Answer: It is a 60 year old technology 12;FACT GHP's were first...

  17. 2008 Geothermal Technologies Market Report

    SciTech Connect (OSTI)

    Cross, J.; Freeman, J.

    2009-07-01T23:59:59.000Z

    This report describes market-wide trends for the geothermal industry throughout 2008 and the beginning of 2009. It begins with an overview of the U.S. DOE's Geothermal Technology Program's (GTP's) involvement with the geothermal industry and recent investment trends for electric generation technologies. The report next describes the current state of geothermal power generation and activity within the United States, costs associated with development, financing trends, an analysis of the levelized cost of energy (LCOE), and a look at the current policy environment. The report also highlights trends regarding direct use of geothermal energy, including geothermal heat pumps (GHPs). The final sections of the report focus on international perspectives, employment and economic benefits from geothermal energy development, and potential incentives in pending national legislation.

  18. ANNUAL HEATING AND COOLING REQUIREMENTS AND DESIGN DAY PERFORMANCE FOR A RESIDENTIAL MODEL IN SIX CLIMATES: A COMPARISON OF NBSLD, BLAST 2, AND DOE-2.1

    E-Print Network [OSTI]

    Carroll, William L.

    2011-01-01T23:59:59.000Z

    BLAST DOE-2 (SWF) Annual Cooling Requirements (10 6 Btu)Btu) I'" I NBSLD III DOE-2 (SW'F) DOE-2 (CW'F) DOE-2 (CWF)Heating (1 Annual Total Btu) City Jan HINNEAPOLIS NBSLD

  19. Geothermal -- The Energy Under Our Feet: Geothermal Resource Estimates for the United States

    SciTech Connect (OSTI)

    Green, B. D.; Nix, R. G.

    2006-11-01T23:59:59.000Z

    On May 16, 2006, the National Renewable Energy Laboratory (NREL) in Golden, Colorado hosted a geothermal resources workshop with experts from the geothermal community. The purpose of the workshop was to re-examine domestic geothermal resource estimates. The participating experts were organized into five working groups based on their primary area of expertise in the following types of geothermal resource or application: (1) Hydrothermal, (2) Deep Geothermal Systems, (3) Direct Use, (4) Geothermal Heat Pumps (GHPs), and (5) Co-Produced and Geopressured. The workshop found that the domestic geothermal resource is very large, with significant benefits.

  20. Oregon Institute of Technology District Heating Low Temperature...

    Open Energy Info (EERE)

    District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Oregon Institute of Technology District Heating Low Temperature Geothermal Facility Facility...

  1. Steamboat Villa Hot Springs Spa Space Heating Low Temperature...

    Open Energy Info (EERE)

    Villa Hot Springs Spa Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Steamboat Villa Hot Springs Spa Space Heating Low Temperature Geothermal...

  2. Warm Springs Water District District Heating Low Temperature...

    Open Energy Info (EERE)

    Water District District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warm Springs Water District District Heating Low Temperature Geothermal...

  3. Wiesbaden Motel & Health Resort Space Heating Low Temperature...

    Open Energy Info (EERE)

    Motel & Health Resort Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Wiesbaden Motel & Health Resort Space Heating Low Temperature Geothermal...

  4. Fort Boise Veteran's Hospital District Heating Low Temperature...

    Open Energy Info (EERE)

    Veteran's Hospital District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Fort Boise Veteran's Hospital District Heating Low Temperature Geothermal...

  5. Geothermal Program Review XII: proceedings. Geothermal Energy and the President's Climate Change Action Plan

    SciTech Connect (OSTI)

    Not Available

    1994-12-31T23:59:59.000Z

    Geothermal Program Review XII, sponsored by the Geothermal Division of US Department of Energy, was held April 25--28, 1994, in San Francisco, California. This annual conference is designed to promote effective technology transfer by bringing together DOE-sponsored researchers; utility representatives; geothermal energy developers; suppliers of geothermal goods and services; representatives from federal, state, and local agencies; and others with an interest in geothermal energy. In-depth reviews of the latest technological advancements and research results are presented during the conference with emphasis on those topics considered to have the greatest potential to impact the near-term commercial development of geothermal energy.

  6. Geothermal: Sponsored by OSTI -- USER?S GUIDE of TOUGH2-EGS-MP...

    Office of Scientific and Technical Information (OSTI)

    Parallel Simulator with Coupled Geomechanics for Fluid and Heat Flow in Enhanced Geothermal Systems VERSION 1.0 Geothermal Technologies Legacy Collection HelpFAQ | Site Map |...

  7. The Buck Institute Turned to Geothermal

    E-Print Network [OSTI]

    The Buck Institute Turned to Geothermal Heating and Cooling for Significant Savings on Energy with the goal of sustaining the healthy years of life... #12;Geothermal Exchange #12;§ Cooling Tower: One. Other Challenges to the Original Central Plant: #12;The geothermal well field replaces the cooling tower

  8. STIMULATION AND RESERVOIR ENGINEERING OF GEOTHERMAL RESOURCES

    E-Print Network [OSTI]

    Stanford University

    STIMULATION AND RESERVOIR ENGINEERING OF GEOTHERMAL RESOURCES Paul Kruger and Henry J . Ramey, Jr . . . . . . . . . . . . . . . . . . . . . . 61 Mass Transfer i n Porous and Fractured Media . . . . . . . . . 61 Heat Transfer i n Fractun3d Rock . . . . . . . . . . . . . . . 67 Geothermal Reservoir Phy.Sica1 PIodels . . . . . . . . . . . . 73 RAD3N I N GEOTHERMAL RESERVOIRS

  9. Consolidated Electric Cooperative- Heat Pump and Water Heating Rebates

    Broader source: Energy.gov [DOE]

    Consolidated Electric Cooperative provides rebates to residential customers who install electric water heaters, dual-fuel heating system or geothermal heat pumps. A dual-fuel heating systems...

  10. Enhanced Geothermal Systems Technologies

    Broader source: Energy.gov [DOE]

    Geothermal Energy an?d the Enhanced Geothermal Systems Concept The Navy 1 geothermal power plant near Coso Hot Springs, California, is applying EGS technology. Heat is naturally present everywhere in the earth. For all intents and purposes, heat from the earth is inexhaustible. Water is not nearly as ubiquitous in the earth as heat. Most aqueous fluids are derived from surface waters that have percolated into the earth along permeable pathways such as faults. Permeability is a measure of the ease of fluid flow through rock. The permeability of rock results from pores, fractures, joints, faults, and other openings which allow fluids to move. High permeability implies that fluids can flow rapidly through the rock. Permeability and, subsequently, the amount of fluids tend to decrease with depth as openings in the rocks compress from the weight of the overburden.

  11. Oregon Underground Injection Control Registration Geothermal...

    Open Energy Info (EERE)

    Oregon Underground Injection Control Registration Geothermal Heating Systems (DEQ Form UICGEO-1004(f)) Jump to: navigation, search OpenEI Reference LibraryAdd to library Form:...

  12. Enhanced Geothermal Systems | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    surface, the water flashes to steam, or it heats a working fluid that produces vapor. The steamvapor turns a turbine to create electricity. The original geothermal water is...

  13. Geothermal energy for the increased recovery of copper by flotation enhancement

    SciTech Connect (OSTI)

    White, D.H.; Goldstone, L.A.

    1982-08-01T23:59:59.000Z

    The possible use of geothermal energy (a) to speed the recovery of copper from ore flotation and/or leaching of flotation tailings and (b) to utilize geothermal brines to replace valuable fresh water in copper flotation operations was evaluated. Geothermal energy could be used to enhance copper and molybdenum recovery in mineral flotation by increasing the kinetics of the flotation process. In another approach, geothermal energy could be used to heat the leaching solution which might permit greater copper recovery using the same residence time in a tailings leach facility. Since there is no restriction on the temperature of the leaching fluid, revenues generated from the additional copper recovered would be greater for tailings leach operations than for other types of leach operations (for example, dump leaching operation) for which temperature restrictions exist. The estimated increase in total revenues resulting from two percent increase copper recovery in a 50,000 tons ore/day plant was estimated to be over $2,000,000 annually. It would require an estimated geothermal investment of about $2,130,000 for a geothermal well and pumping system. Thus, the capital investment would be paid out in about one year. Furthermore, considerable savings of fresh waters and process equipment are possible if the geothermal waters can be used directly in the mine-mill operations, which is believed to be practical.

  14. ENERGY & ENVIRONMENT DIVISION. ANNUAL REPORT FY 1980

    E-Print Network [OSTI]

    Authors, Various

    2010-01-01T23:59:59.000Z

    water, indus- trial waste heat, geothermal brines, and oceansources as industrial waste heat, low-temperature geothermalenergy from low-grade or waste heat can be constructed;

  15. USER’S GUIDE of TOUGH2-EGS: A Coupled Geomechanical and Reactive Geochemical Simulator for Fluid and Heat Flow in Enhanced Geothermal Systems Version 1.0

    SciTech Connect (OSTI)

    Fakcharoenphol, Perapon [Colorado School of Mines; Xiong, Yi [Colorado School of Mines; Hu, Litang; Winterfeld, Philip H. [Colorado School of Mines; Xu, Tianfu [Lawrence Berkeley National Laboratory; Wu, Yu-Shu [Colorado School of Mines

    2013-05-01T23:59:59.000Z

    TOUGH2-EGS is a numerical simulation program coupling geomechanics and chemical reactions for fluid and heat flows in porous media and fractured reservoirs of enhanced geothermal systems. The simulator includes the fully-coupled geomechanical (THM) module, the fully-coupled geochemical (THC) module, and the sequentially coupled reactive geochemistry (THMC) module. The fully-coupled flow-geomechanics model is developed from the linear elastic theory for the thermo-poro-elastic system and is formulated with the mean normal stress as well as pore pressure and temperature. The chemical reaction is sequentially coupled after solution of flow equations, which provides the flow velocity and phase saturation for the solute transport calculation at each time step. In addition, reservoir rock properties, such as porosity and permeability, are subjected to change due to rock deformation and chemical reactions. The relationships between rock properties and geomechanical and chemical effects from poro-elasticity theories and empirical correlations are incorporated into the simulator. This report provides the user with detailed information on both mathematical models and instructions for using TOUGH2-EGS for THM, THC or THMC simulations. The mathematical models include the fluid and heat flow equations, geomechanical equation, reactive geochemistry equations, and discretization methods. Although TOUGH2-EGS has the capability for simulating fluid and heat flows coupled with both geomechanical and chemical effects, it is up to the users to select the specific coupling process, such as THM, THC, or THMC in a simulation. There are several example problems illustrating the applications of this program. These example problems are described in details and their input data are presented. The results demonstrate that this program can be used for field-scale geothermal reservoir simulation with fluid and heat flow, geomechanical effect, and chemical reaction in porous and fractured media.

  16. Geothermal Orientation Handbook

    SciTech Connect (OSTI)

    None

    1984-07-01T23:59:59.000Z

    This is a useful overview of the Department of Energy's outlook on geothermal energy development in the U.S. as of late 1983. For example, Exhibit 4 shows how electric utility planners' estimates of likely amounts of geothermal power on line for 1990 and 2000 first increased and then declined over time as they were surveyed in 1977 through 1983 (date are from the EPRI Survey). Additions to direct heat uses in 1979 through 1981 are in Exhibit 7. A Table (not numbered) at the back of the report "Historical Development of Geothermal Power ..." shows world installed geothermal capacity by nation at decadal intervals from 1950 to 1980, and the first year of power production for each country. (DJE 2005)

  17. PROCEEDINGS, Thirty-Fourth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 9-11, 2009

    E-Print Network [OSTI]

    Stanford University

    physics. Nowadays geothermal resources are used to get heat supply, produce electric power, and extract

  18. GEOTHERMAL EXPLORATION ASSESSMENT AND INTERPRETATION, KLAMATH BASIN, OREGON-SWAN LAKE AND KLAMATH HILLS AREA

    E-Print Network [OSTI]

    Stark, M.

    2011-01-01T23:59:59.000Z

    review, 1977 outlook: Geothermal Energy Magazine, v.5, no.6,Oklahoma City, Oklahoma. Geothermal Energy, 1974, Heat mineKlamath Falls). ; Geothermal Energy, v.2, no.10, pp. 32-33.

  19. GRC Workshop: The Power of the National Geothermal Data System

    Office of Energy Efficiency and Renewable Energy (EERE)

    Drilling Down: How Legacy and New Research Data Can Advance Geothermal Development—The Power of the National Geothermal Data System (NGDS) A workshop at the Geothermal Resources Council Annual Meeting in Las Vegas, Nevada Abstract: The National Geothermal Data System's (NGDS) launch in 2014 will provide open access to millions of datasets, sharing technical geothermal-relevant data across the geosciences to propel geothermal development and production forward. By aggregating findings from the Energy Department's RD&D projects and consistent, reliable geological and geothermal information from all 50 states, this free, interactive tool can shorten project development timelines and facilitate scientific discovery and best practices. Stop by our workshop for an overview of how your company can benefit from implementing, and participating in this open-source based, distributed network. To register for the GRC Annual Meeting, visit the GRC Annual Meeting and GEA Geothermal Energy Expo event website.

  20. Geothermal reservoir engineering research at Stanford University. Third annual report for the period October 1, 1982-September 30, 1983

    SciTech Connect (OSTI)

    Ramey, H.J. Jr.; Kruger, P.; Horne, R.N.; Brigham, W.E.; Miller, F.G.

    1983-09-01T23:59:59.000Z

    Progress is reported in the following areas: heat extraction from hydrothermal reservoirs; radon reservoir engineering; well test analysis and bench scale experiments; field applications; workshop, seminars, and technical information; reinjection technology; and seismic monitoring of vapor/liquid interfaces. (MHR)

  1. Energy Department Addresses Largest Gathering of Geothermal Energy...

    Broader source: Energy.gov (indexed) [DOE]

    Resources Council (GRC) in Reno, Nevada-the industry's largest annual gathering of geothermal energy stakeholders in the nation. In his keynote address, Hollett discussed...

  2. Changes in Surficial Features Associated with Geothermal Development...

    Open Energy Info (EERE)

    existing and future resource developments. Authors Michael L. Sorey and Christopher D. Farrar Conference GRC Annual Meeting; San Diego, CA; 09201998 Published Geothermal...

  3. Utilization of geothermal energy in the mining and processing of tungsten ore. Final report

    SciTech Connect (OSTI)

    Erickson, M.V.; Lacy, S.B.; Lowe, G.D.; Nussbaum, A.M.; Walter, K.M.; Willens, C.A.

    1981-01-01T23:59:59.000Z

    The engineering, economic, and environmental feasibility of the use of low and moderate temperature geothermal heat in the mining and processing of tungsten ore is explored. The following are covered: general engineering evaluation, design of a geothermal energy system, economics, the geothermal resource, the institutional barriers assessment, environmental factors, an alternate geothermal energy source, and alternates to geothermal development. (MHR)

  4. Idaho Geothermal Commercialization Program. Idaho geothermal handbook

    SciTech Connect (OSTI)

    Hammer, G.D.; Esposito, L.; Montgomery, M.

    1980-03-01T23:59:59.000Z

    The following topics are covered: geothermal resources in Idaho, market assessment, community needs assessment, geothermal leasing procedures for private lands, Idaho state geothermal leasing procedures - state lands, federal geothermal leasing procedures - federal lands, environmental and regulatory processes, local government regulations, geothermal exploration, geothermal drilling, government funding, private funding, state and federal government assistance programs, and geothermal legislation. (MHR)

  5. Geothermal energy: tomorrow's alternative today. A handbook for geothermal-energy development in Delaware

    SciTech Connect (OSTI)

    Mancus, J.; Perrone, E.

    1982-08-01T23:59:59.000Z

    This is a general procedure guide to various technical, economic, and institutional aspects of geothermal development in Delaware. The following are covered: geothermal as an alternative, resource characteristics, geology, well mechanics and pumping systems, fluid disposal, direct heat utilization-feasibility, environmental and legal issues, permits and regulations, finance and taxation, and steps necessary for geothermal development. (MHR)

  6. Project Title: Small Scale Electrical Power Generation from Heat Co-Produced in Geothermal Fluids: Mining Operation

    SciTech Connect (OSTI)

    Clark, Thomas M [Principal Investigator; Erlach, Celeste [Communications Mgr.

    2014-12-30T23:59:59.000Z

    Demonstrate the technical and economic feasibility of small scale power generation from low temperature co-produced fluids. Phase I is to Develop, Design and Test an economically feasible low temperature ORC solution to generate power from lower temperature co-produced geothermal fluids. Phase II &III are to fabricate, test and site a fully operational demonstrator unit on a gold mine working site and operate, remotely monitor and collect data per the DOE recommended data package for one year.

  7. Stanford Geothermal Workshop - Geothermal Technologies Office...

    Broader source: Energy.gov (indexed) [DOE]

    by Geothermal Technologies Director Doug Hollett at the Stanford Geothermal Workshop on February 11-13, 2013. stanford2013hollett.pdf More Documents & Publications Geothermal...

  8. Conceptual design study of geothermal district heating of a thirty-house subdivision in Elko, Nevada, using existing water-distribution systems, Phase III. Final technical report, October 1, 1979-September 30, 1980

    SciTech Connect (OSTI)

    Pitts, D.R.

    1980-09-30T23:59:59.000Z

    A conceptual design study for district heating of a 30-home subdivision located near the southeast extremity of the city of Elko, Nevada is presented. While a specific residential community was used in the study, the overall approach and methodologies are believed to be generally applicable for a large number of communities where low temperature geothermal fluid is available. The proposed district heating system utilizes moderate temperature, clean domestic water and existing community culinary water supply lines. The culinary water supply is heated by a moderate temperature geothermal source using a single heat exchanger at entry to the subdivision. The heated culinary water is then pumped to the houses in the community where energy is extracted by means of a water supplied heat pump. The use of heat pumps at the individual houses allows economic heating to result from supply of relatively cool water to the community, and this precludes the necessity of supplying objectionably hot water for normal household consumption use. Each heat pump unit is isolated from the consumptive water flow such that contamination of the water supply is avoided. The community water delivery system is modified to allow recirculation within the community, and very little rework of existing water lines is required. The entire system coefficient of performance (COP) for a typical year of heating is 3.36, exclusive of well pumping energy.

  9. Energy 101: Geothermal Energy

    SciTech Connect (OSTI)

    None

    2014-05-27T23:59:59.000Z

    See how we can generate clean, renewable energy from hot water sources deep beneath the Earth's surface. The video highlights the basic principles at work in geothermal energy production, and illustrates three different ways the Earth's heat can be converted into electricity.

  10. Energy 101: Geothermal Energy

    ScienceCinema (OSTI)

    None

    2014-06-23T23:59:59.000Z

    See how we can generate clean, renewable energy from hot water sources deep beneath the Earth's surface. The video highlights the basic principles at work in geothermal energy production, and illustrates three different ways the Earth's heat can be converted into electricity.

  11. ENERGY & ENVIRONMENT DIVISION. ANNUAL REPORT FY 1980

    E-Print Network [OSTI]

    Authors, Various

    2010-01-01T23:59:59.000Z

    MSW) and 40 MWe of ocean thermal energy conversion (OTEC)ocean thermal, Ruderman wind, solar, and geothermal energy,energy sources, such as solar-heated water, indus- trial waste heat, geothermal brines, and ocean thermal

  12. Geothermal Energy Summary

    SciTech Connect (OSTI)

    J. L. Renner

    2007-08-01T23:59:59.000Z

    Following is complete draft.Geothermal Summary for AAPG Explorer J. L. Renner, Idaho National Laboratory Geothermal energy is used to produce electricity in 24 countries. The United States has the largest capacity (2,544 MWe) followed by Philippines (1,931 MWe), Mexico (953 MWe), Indonesia (797 MWe), and Italy (791 MWe) (Bertani, 2005). When Chevron Corporation purchased Unocal Corporation they became the leading producer of geothermal energy worldwide with projects in Indonesia and the Philippines. The U. S. geothermal industry is booming thanks to increasing energy prices, renewable portfolio standards, and a production tax credit. California (2,244 MWe) is the leading producer, followed by Nevada (243 MWe), Utah (26 MWe) and Hawaii (30 MWe) and Alaska (0.4 MWe) (Bertani, 2005). Alaska joined the producing states with two 0.4 KWe power plants placed on line at Chena Hot Springs during 2006. The plant uses 30 liters per second of 75°C water from shallow wells. Power production is assisted by the availability of gravity fed, 7°C cooling water (http://www.yourownpower.com/) A 13 MWe binary power plant is expected to begin production in the fall of 2007 at Raft River in southeastern Idaho. Idaho also is a leader in direct use of geothermal energy with the state capital building and several other state and Boise City buildings as well as commercial and residential space heated using fluids from several, interconnected geothermal systems. The Energy Policy Act of 2005 modified leasing provisions and royalty rates for both geothermal electrical production and direct use. Pursuant to the legislation the Bureau of Land management and Minerals Management Service published final regulations for continued geothermal leasing, operations and royalty collection in the Federal Register (Vol. 72, No. 84 Wednesday May 2, 2007, BLM p. 24358-24446, MMS p. 24448-24469). Existing U. S. plants focus on high-grade geothermal systems located in the west. However, interest in non-traditional geothermal development is increasing. A comprehensive new MIT-led study of the potential for geothermal energy within the United States predicts that mining the huge amounts of stored thermal energy in the Earth’s crust not associated with hydrothermal systems, could supply a substantial portion of U.S. electricity with minimal environmental impact (Tester, et al., 2006, available at http://geothermal.inl.gov). There is also renewed interest in geothermal production from other non-traditional sources such as the overpressured zones in the Gulf Coast and warm water co-produced with oil and gas. Ormat Technologies, Inc., a major geothermal company, recently acquired geothermal leases in the offshore overpressured zone of Texas. Ormat and the Rocky Mountain Oilfield Testing Center recently announced plans to jointly produce geothermal power from co-produced water from the Teapot Dome oilfield (Casper Star-Tribune, March 2, 2007). RMOTC estimates that 300 KWe capacity is available from the 40,000 BWPD of 88°C water associated with oil production from the Tensleep Sandstone (Milliken, 2007). The U. S. Department of Energy is seeking industry partners to develop electrical generation at other operating oil and gas fields (for more information see: https://e-center.doe.gov/iips/faopor.nsf/UNID/50D3734745055A73852572CA006665B1?OpenDocument). Several web sites offer periodically updated information related to the geothermal industry and th

  13. Nevada's Beowawe Geothermal Plant Begins Generating Clean Energy...

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

    years." The new low-temperature, binary cycle plant uses waste heat from the geothermal brine of an existing geothermal plant at the facility. The new plant will add approximately...

  14. Pinpointing America's Geothermal Resources with Open Source Data...

    Energy Savers [EERE]

    January 7, 2013 - 4:04pm Addthis When it comes to harnessing America's vast geothermal energy resources, knowing where to look is half the battle. Geothermal energy-the heat...

  15. THE DEFINITION OF ENGINEERING DEVELOPMENT AND RESEARCH PROBLEMS RELATING TO THE USE OF GEOTHERMAL FLUIDS FOR ELECTRIC POWER GENERATION AND NONELECTRIC HEATING

    E-Print Network [OSTI]

    Apps, J.A.

    2011-01-01T23:59:59.000Z

    cooling can be an important requirement for any geothermalGeothermal fluid, liquid state Steam (both'wet and dry) Secondary (usually a hydrocarbon or mixture of hydrocarbons) Condensate Cooling

  16. Geothermal Case Studies

    SciTech Connect (OSTI)

    Young, Katherine

    2014-09-30T23:59:59.000Z

    The US Geological Survey (USGS) resource assessment (Williams et al., 2009) outlined a mean 30GWe of undiscovered hydrothermal resource in the western US. One goal of the Geothermal Technologies Office (GTO) is to accelerate the development of this undiscovered resource. The Geothermal Technologies Program (GTP) Blue Ribbon Panel (GTO, 2011) recommended that DOE focus efforts on helping industry identify hidden geothermal resources to increase geothermal capacity in the near term. Increased exploration activity will produce more prospects, more discoveries, and more readily developable resources. Detailed exploration case studies akin to those found in oil and gas (e.g. Beaumont, et al, 1990) will give operators a single point of information to gather clean, unbiased information on which to build geothermal drilling prospects. To support this effort, the National Renewable Energy laboratory (NREL) has been working with the Department of Energy (DOE) to develop a template for geothermal case studies on the Geothermal Gateway on OpenEI. In fiscal year 2013, the template was developed and tested with two case studies: Raft River Geothermal Area (http://en.openei.org/wiki/Raft_River_Geothermal_Area) and Coso Geothermal Area (http://en.openei.org/wiki/Coso_Geothermal_Area). In fiscal year 2014, ten additional case studies were completed, and additional features were added to the template to allow for more data and the direct citations of data. The template allows for: Data - a variety of data can be collected for each area, including power production information, well field information, geologic information, reservoir information, and geochemistry information. Narratives ? general (e.g. area overview, history and infrastructure), technical (e.g. exploration history, well field description, R&D activities) and geologic narratives (e.g. area geology, hydrothermal system, heat source, geochemistry.) Exploration Activity Catalog - catalog of exploration activities conducted in the area (with dates and references.) NEPA Analysis ? a query of NEPA analyses conducted in the area (that have been catalogued in the OpenEI NEPA database.) In fiscal year 2015, NREL is working with universities to populate additional case studies on OpenEI. The goal is to provide a large enough dataset to start conducting analyses of exploration programs to identify correlations between successful exploration plans for areas with similar geologic occurrence models.

  17. abstract accepted for the 34th Geothermal Resources Council Annual Meeting, Sacramento Convention Center, Sacramento, California, October 24-27, 2010

    E-Print Network [OSTI]

    Foulger, G. R.

    scientists working in the geothermal, mining, petroleum and other industries must address. We present a brief been further related to geomechanical parameters such as changes of injection pressure, injected volume. Engineered Geothermal Systems (EGS) have the potential to expand clean renewable, baseload energy beyond

  18. Geothermal Progress Monitor: Report No. 14

    SciTech Connect (OSTI)

    Not Available

    1992-12-01T23:59:59.000Z

    This issue of the Geothermal Progress Monitor, the 14th since its inception in 1980, highlights the anticipated rapid growth in the use of geothermal heat pumps and documents the continued growth in the use of geothermal energy for power generation, both in this country and abroad. In countries with a relatively large demand for new generation capacity, geothermal, if available, is being called on as a preferable alternative to the use of domestic or imported oil. On the other hand, in this country where current demand for new capacity is less, geothermal energy is commonly being put to use in small power generation units operating on the hot water resource.

  19. THE DEFINITION OF ENGINEERING DEVELOPMENT AND RESEARCH PROBLEMS RELATING TO THE USE OF GEOTHERMAL FLUIDS FOR ELECTRIC POWER GENERATION AND NONELECTRIC HEATING

    E-Print Network [OSTI]

    Apps, J.A.

    2011-01-01T23:59:59.000Z

    the geothermal field at Cerro Prieto is producing electricYellowstone Mex i co ;‘:Cerro Prieto I numerous wells yes

  20. Geothermal | ornl.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField8,Dist.NewofGeothermal Heat Pump Basics Geothermal

  1. Geothermal program overview: Fiscal years 1993--1994

    SciTech Connect (OSTI)

    NONE

    1995-11-01T23:59:59.000Z

    The DOE Geothermal Energy Program is involved in three main areas of research: finding and tapping the resource; power generation; and direct use of geothermal energy. This publication summarizes research accomplishments for FY 1993 and 1994 for the following: geophysical and geochemical technologies; slimhole drilling for exploration; resource assessment; lost circulation control; rock penetration mechanics; instrumentation; Geothermal Drilling Organization; reservoir analysis; brine injection; hot dry rock; The Geysers; Geothermal Technology Organization; heat cycle research; advanced heat rejection; materials development; and advanced brine chemistry.

  2. Geothermal direct use engineering and design guidebook

    SciTech Connect (OSTI)

    Lienau, P.J.; Lunis, B.C. (eds.)

    1991-01-01T23:59:59.000Z

    The Geothermal Direct Use Engineering and Design Guidebook is designed to be a comprehensive, thoroughly practical reference guide for engineers and designers of direct heat projects. These projects could include the conversion of geothermal energy into space heating and cooling of buildings, district heating, greenhouse heating, aquaculture and industrial processing. The Guidebook is directed at understanding the nature of geothermal resources and the exploration of the resources, fluid sampling techniques, drilling, and completion of geothermal wells through well testing, and reservoir evaluation. It presents information useful to engineers on the specification of equipment including well pumps, piping, heat exchangers, space heating equipment, heat pumps and absorption refrigeration. A compilation of current information about greenhouse aquaculture and industrial applications is included together with a discussion of engineering cost analysis, regulation requirements, and environmental consideration. The purpose of the Guidebook is to provide an integrated view for the development of direct use projects for which there is a very large potential in the United States.

  3. Geothermal direct use engineering and design guidebook

    SciTech Connect (OSTI)

    Bloomquist, R.G.; Culver, G.; Ellis, P.F.; Higbee, C.; Kindle, C.; Lienau, P.J.; Lunis, B.C.; Rafferty, K.; Stiger, S.; Wright, P.M.

    1989-03-01T23:59:59.000Z

    The Geothermal Direct Use Engineering and Design Guidebook is designed to be a comprehensive, thoroughly practical reference guide for engineers and designers of direct heat projects. These projects could include the conversion of geothermal energy into space heating cooling of buildings, district heating, greenhouse heating, aquaculture and industrial processing. The Guidebook is directed at understanding the nature of geothermal resources and the exploration of these resources, fluid sampling techniques, drilling, and completion of geothermal wells through well testing, and reservoir evaluation. It presents information useful to engineers on the specification of equipment including well pumps, piping, heat exchangers, space heating equipment, heat pumps and absorption refrigeration. A compilation of current information about greenhouse, aquaculture and industrial applications is included together with a discussion of engineering cost analysis, regulation requirements, and environmental considerations. The purpose of the Guidebook is to provide an integrated view for the development of direct use projects for which there is a very potential in the United States.

  4. Environmental Assessment Lakeview Geothermal Project

    SciTech Connect (OSTI)

    Treis, Tania

    2012-04-30T23:59:59.000Z

    The Town of Lakeview is proposing to construct and operate a geothermal direct use district heating system in Lakeview, Oregon. The proposed project would be in Lake County, Oregon, within the Lakeview Known Geothermal Resources Area (KGRA). The proposed project includes the following elements: � Drilling, testing, and completion of a new production well and geothermal water injection well � Construction and operation of a geothermal production fluid pipeline from the well pad to various Town buildings (i.e., local schools, hospital, and Lake County Industrial Park) and back to a geothermal water injection well This EA describes the proposed project, the alternatives considered, and presents the environmental analysis pursuant to the National Environmental Policy Act. The project would not result in adverse effects to the environment with the implementation of environmental protection measures.

  5. PROCEEDINGS, Thirty-Fourth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 9-11, 2009

    E-Print Network [OSTI]

    Stanford University

    air pollution and save conventional energy, geothermal energy as a heat source for district heating on some typical geothermal wells. 1.2 Cliamte Air temperature affects the indoor temperature through heat

  6. Geothermal Basics

    Broader source: 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.

  7. GEOTHERMAL POWER GENERATION PLANT

    SciTech Connect (OSTI)

    Boyd, Tonya

    2013-12-01T23:59:59.000Z

    Oregon Institute of Technology (OIT) drilled a deep geothermal well on campus (to 5,300 feet deep) which produced 196oF resource as part of the 2008 OIT Congressionally Directed Project. OIT will construct a geothermal power plant (estimated at 1.75 MWe gross output). The plant would provide 50 to 75 percent of the electricity demand on campus. Technical support for construction and operations will be provided by OIT’s Geo-Heat Center. The power plant will be housed adjacent to the existing heat exchange building on the south east corner of campus near the existing geothermal production wells used for heating campus. Cooling water will be supplied from the nearby cold water wells to a cooling tower or air cooling may be used, depending upon the type of plant selected. Using the flow obtained from the deep well, not only can energy be generated from the power plant, but the “waste” water will also be used to supplement space heating on campus. A pipeline will be construction from the well to the heat exchanger building, and then a discharge line will be construction around the east and north side of campus for anticipated use of the “waste” water by facilities in an adjacent sustainable energy park. An injection well will need to be drilled to handle the flow, as the campus existing injection wells are limited in capacity.

  8. Geothermal: News

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    News Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search About Publications Advanced Search New Hot Docs News Related Links News DOE...

  9. Geothermal: Publications

    Office of Scientific and Technical Information (OSTI)

    Influences on Geochemical Temperature Indicators: Final Report Earl Mattson ; Robert Smith ; Yoshiko Fujita ; et.al. INLEXT-14-33959 2015 04 07 2015 Mar 01 Deep Geothermal:...

  10. Geothermal energy for American Samoa

    SciTech Connect (OSTI)

    Not Available

    1980-03-01T23:59:59.000Z

    The geothermal commercialization potential in American Samoa was investigated. With geothermal energy harnessed in American Samoa, a myriad of possibilities would arise. Existing residential and business consumers would benefit from reduced electricity costs. The tuna canneries, demanding about 76% of the island's process heat requirements, may be able to use process heat from a geothermal source. Potential new industries include health spas, aquaculture, wood products, large domestic and transhipment refrigerated warehouses, electric cars, ocean nodule processing, and a hydrogen economy. There are no territorial statutory laws of American Samoa claiming or reserving any special rights (including mineral rights) to the territorial government, or other interests adverse to a land owner, for subsurface content of real property. Technically, an investigation has revealed that American Samoa does possess a geological environment conducive to geothermal energy development. Further studies and test holes are warranted.

  11. Geothermal Permeability Enhancement - Final Report

    SciTech Connect (OSTI)

    Joe Beall; Mark Walters

    2009-06-30T23:59:59.000Z

    The overall objective is to apply known permeability enhancement techniques to reduce the number of wells needed and demonstrate the applicability of the techniques to other undeveloped or under-developed fields. The Enhanced Geothermal System (EGS) concept presented in this project enhances energy extraction from reduced permeability zones in the super-heated, vapor-dominated Aidlin Field of the The Geysers geothermal reservoir. Numerous geothermal reservoirs worldwide, over a wide temperature range, contain zones of low permeability which limit the development potential and the efficient recovery of heat from these reservoirs. Low permeability results from poorly connected fractures or the lack of fractures. The Enhanced Geothermal System concept presented here expands these technologies by applying and evaluating them in a systematic, integrated program.

  12. Direct contact, binary fluid geothermal boiler

    DOE Patents [OSTI]

    Rapier, Pascal M. (Richmond, CA)

    1982-01-01T23:59:59.000Z

    Energy is extracted from geothermal brines by direct contact with a working fluid such as isobutane which is immiscible with the brine in a geothermal boiler. The geothermal boiler provides a distributor arrangement which efficiently contacts geothermal brine with the isobutane in order to prevent the entrainment of geothermal brine in the isobutane vapor which is directed to a turbine. Accordingly the problem of brine carry-over through the turbine causes corrosion and scaling thereof is eliminated. Additionally the heat exchanger includes straightening vanes for preventing startup and other temporary fluctuations in the transitional zone of the boiler from causing brine carryover into the turbine. Also a screen is provided in the heat exchanger to coalesce the working fluid and to assist in defining the location of the transitional zone where the geothermal brine and the isobutane are initially mixed.

  13. ANNUAL HEATING AND COOLING REQUIREMENTS AND DESIGN DAY PERFORMANCE FOR A RESIDENTIAL MODEL IN SIX CLIMATES: A COMPARISON OF NBSLD, BLAST 2, AND DOE-2.1

    E-Print Network [OSTI]

    Carroll, William L.

    2011-01-01T23:59:59.000Z

    Comparison of NBSLD, BLAST 2. and Effect of Selected Changessignificant effect on annual heating loads, BLAST 2 predictsComparison of NBSLD, BLAST 2, and DOE~2.1 Effect of Climate

  14. Sandia National Laboratories: Geothermal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Geothermal Sandia Wins DOE Geothermal Technologies Office Funding Award On December 15, 2014, in Advanced Materials Laboratory, Capabilities, Energy, Facilities, Geothermal,...

  15. -Injection Technology -Geothermal Reservoir Engineering

    E-Print Network [OSTI]

    Stanford University

    Investigator: Roland N. Home September 1985 First Annual Report Department of Energy Contract Number, and the forecasting of field behavior with time. Injection I I Tec hnology is a research area receiving special on geothermal energy. The Program publishes technical reports on all of its research projects. Research findings

  16. Geothermal high temperature instrumentation applications

    SciTech Connect (OSTI)

    Normann, R.A. [Sandia National Labs., Albuquerque, NM (United States); Livesay, B.J. [Livesay Consultants (United States)

    1998-06-11T23:59:59.000Z

    A quick look at the geothermal industry shows a small industry producing about $1 billion in electric sales annually. The industry is becoming older and in need of new innovative solutions to instrumentation problems. A quick look at problem areas is given along with basic instrumentation requirements. The focus of instrumentation is on high temperature electronics.

  17. Sustaining the National Geothermal Data System: Considerations for a System Wide Approach and Node Maintenance, Geothermal Resources Council 37th Annual Meeting, Las Vegas, Nevada, September 29-October 2, 2013

    SciTech Connect (OSTI)

    Allison, Lee [Arizona Geological Survey; Chickering, Cathy [Southern Methodist University; Anderson, Arlene [U. S. Department of Energy, Geothermal Technologies Office; Richard, Stephen M. [Arizona Geological Survey

    2013-10-01T23:59:59.000Z

    Since the 2009 American Recovery and Reinvestment Act the U.S. Department of Energy’s Geothermal Technologies Office has funded $33.7 million for multiple data digitization and aggregation projects focused on making vast amounts of geothermal relevant data available to industry for advancing geothermal exploration. These projects are collectively part of the National Geothermal Data System (NGDS), a distributed, networked system for maintaining, sharing, and accessing data in an effort to lower the levelized cost of electricity (LCOE). Determining “who owns” and “who maintains” the NGDS and its data nodes (repositories in the distributed system) is yet to be determined. However, the invest- ment in building and populating the NGDS has been substantial, both in terms of dollars and time; it is critical that this investment be protected by ensuring sustainability of the data, the software and systems, and the accessibility of the data. Only then, will the benefits be fully realized. To keep this operational system sustainable will require four core elements: continued serving of data and applications; maintenance of system operations; a governance structure; and an effective business model. Each of these presents a number of challenges. Data being added to the NGDS are not strictly geothermal but data considered relevant to geothermal exploration and develop- ment, including vast amounts of oil and gas and groundwater wells, among other data. These are relevant to a broader base of users. By diversifying the client base to other users and other fields, the cost of maintaining core infrastructure can be spread across an array of stakeholders and clients. It is presumed that NGDS will continue to provide free and open access to its data resources. The next-phase NGDS operation should be structured to eventually pursue revenue streams to help off-set sustainability expenses as necessary and appropriate, potentially including income from: grants and contracts (agencies, foundations, pri- vate sector), membership, fees for services (consulting, training, customization, ‘app’ development), repository services (data, services, apps, models, documents, multimedia), advertisements, fees for premier services or applications, subscriptions to value added services, licenses, contributions and donations, endow- ments, and sponsorships.

  18. Colorado Geothermal Commercialization Program

    SciTech Connect (OSTI)

    Healy, F.C.

    1980-04-01T23:59:59.000Z

    Chaffee County, located in central Colorado, has immense potential for geothermal development. This report has been prepared to assist residents and developers in and outside the area to develop the hydrothermal resources of the county. Data has been collected and interpreted from numerous sources in order to introduce a general description of the area, estimate energy requirements, describe the resources and postulate a development plan. Electric power generation and direct heat application potential for the region are described.

  19. Fluid Imaging of Enhanced Geothermal Systems through Joint 3D...

    Open Energy Info (EERE)

    defined as enhanced reservoirs that have been created to extract economical amounts of heat from low permeability andor porosity geothermal resources. Critical to the success...

  20. CNCC Craig Campus Geothermal Program: 82-well closed loop GHP...

    Open Energy Info (EERE)

    Milestones Geothermal energy provided by a ground source heat pump system will reduce consumption of electricity (60% is from coal) and natural gas resources compared to...

  1. Harford County- Property Tax Credit for Solar and Geothermal Devices

    Broader source: Energy.gov [DOE]

    Harford County offers a tax credit from real property taxes imposed on residential buildings, nonresidential buildings, or other structures that use solar or geothermal devices for heating, cooling...

  2. Climate Change Update: Baseload Geothermal is One of the Lowest...

    Broader source: Energy.gov (indexed) [DOE]

    Geothermal energy - energy derived from the heat of the earth - has the ability to produce electricity consistently around the clock, draws a small environmental footprint, and...

  3. Advances in Geothermal Direct Use Workshop | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    a new technology called Deep Direct Use, which optimizes the value stream of geothermal brines through large-scale lower temperature cascaded use, including direct heating...

  4. aapg geothermal survey: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engineering Websites Summary: Measuring the Costs & Benefits of Nationwide Geothermal Heat Pump (GHP) Deployment - A Progress to measure the costs and benefits of nationwide...

  5. agency geothermal project: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and Utilization Websites Summary: State Regulatory Oversight of Geothermal Heat Pump Installations: 2012 Kevin McCray Executive of this project was to update previous...

  6. California Geothermal Energy Collaborative

    E-Print Network [OSTI]

    California Geothermal Energy Collaborative Geothermal Education and Outreach Guide of California Davis, and the California Geothermal Energy Collaborative. We specifically would like to thank support of the California Geothermal Energy Collaborative. We also thank Charlene Wardlow of Ormat for her

  7. Geothermal Progress Monitor. Report No. 15

    SciTech Connect (OSTI)

    Not Available

    1993-12-01T23:59:59.000Z

    Two themes dominate this issue of the Geothermal Progress Monitor, the 15th since its inception in 1980. The first of these is the significance of the government/industry partnership role in geothermal development. This joint effort is reflected in the continued, measured growth in the use of geothermal energy, for both power generation and direct use applications, in this country and abroad, as well as in the development of new, innovative technologies to ensure a bright future for the resource. The second theme is the growing popularity of geothermal heat pumps (GHPs) among utilities, their customers, and federal agencies, all with disparate interests in the technology.

  8. Geothermal Data Systems

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy (DOE) Geothermal Technologies Office (GTO) has designed and tested a comprehensive, federated information system that will make geothermal data widely available. This new National Geothermal Data System (NGDS) will provide access to all types of geothermal data to enable geothermal analysis and widespread public use, thereby reducing the risk of geothermal energy development.

  9. Federal Geothermal Research Program Update - Fiscal Year 2004

    SciTech Connect (OSTI)

    Patrick Laney

    2005-03-01T23:59:59.000Z

    The Department of Energy (DOE) and its predecessors have conducted research and development (R&D) in geothermal energy since 1971. The Geothermal Technologies Program (GTP) works in partnership with industry to establish geothermal energy as an economically competitive contributor to the U.S. energy supply. Geothermal energy production, a $1.5 billion a year industry, generates electricity or provides heat for direct use applications. The technologies developed by the Geothermal Technologies Program will provide the Nation with new sources of electricity that are highly reliable and cost competitive and do not add to America's air pollution or the emission of greenhouse gases. Geothermal electricity generation is not subject to fuel price volatility and supply disruptions from changes in global energy markets. Geothermal energy systems use a domestic and renewable source of energy. The Geothermal Technologies Program develops innovative technologies to find, access, and use the Nation's geothermal resources. These efforts include emphasis on Enhanced Geothermal Systems (EGS) with continued R&D on geophysical and geochemical exploration technologies, improved drilling systems, and more efficient heat exchangers and condensers. The Geothermal Technologies Program is balanced between short-term goals of greater interest to industry, and long-term goals of importance to national energy interests. The program's research and development activities are expected to increase the number of new domestic geothermal fields, increase the success rate of geothermal well drilling, and reduce the costs of constructing and operating geothermal power plants. These improvements will increase the quantity of economically viable geothermal resources, leading in turn to an increased number of geothermal power facilities serving more energy demand. These new geothermal projects will take advantage of geothermal resources in locations where development is not currently possible or economical.

  10. Federal Geothermal Research Program Update Fiscal Year 2004

    SciTech Connect (OSTI)

    Not Available

    2005-03-01T23:59:59.000Z

    The Department of Energy (DOE) and its predecessors have conducted research and development (R&D) in geothermal energy since 1971. The Geothermal Technologies Program (GTP) works in partnership with industry to establish geothermal energy as an economically competitive contributor to the U.S. energy supply. Geothermal energy production, a $1.5 billion a year industry, generates electricity or provides heat for direct use applications. The technologies developed by the Geothermal Technologies Program will provide the Nation with new sources of electricity that are highly reliable and cost competitive and do not add to America's air pollution or the emission of greenhouse gases. Geothermal electricity generation is not subject to fuel price volatility and supply disruptions from changes in global energy markets. Geothermal energy systems use a domestic and renewable source of energy. The Geothermal Technologies Program develops innovative technologies to find, access, and use the Nation's geothermal resources. These efforts include emphasis on Enhanced Geothermal Systems (EGS) with continued R&D on geophysical and geochemical exploration technologies, improved drilling systems, and more efficient heat exchangers and condensers. The Geothermal Technologies Program is balanced between short-term goals of greater interest to industry, and long-term goals of importance to national energy interests. The program's research and development activities are expected to increase the number of new domestic geothermal fields, increase the success rate of geothermal well drilling, and reduce the costs of constructing and operating geothermal power plants. These improvements will increase the quantity of economically viable geothermal resources, leading in turn to an increased number of geothermal power facilities serving more energy demand. These new geothermal projects will take advantage of geothermal resources in locations where development is not currently possible or economical.

  11. Annual Energy Consumption Analysis and Energy Optimization of a Solar-Assisted Heating Swimming Pool 

    E-Print Network [OSTI]

    Zuo, Z.; Hu, W.; Meng, O.

    2006-01-01T23:59:59.000Z

    This paper is concerned with the energy efficiency calculations and optimization for an indoor solar-assisted heating swimming pool in GuangZhou. The heating energy requirements for maintaining the pool constant temperature were investigated, which...

  12. Annual Energy Consumption Analysis and Energy Optimization of a Solar-Assisted Heating Swimming Pool

    E-Print Network [OSTI]

    Zuo, Z.; Hu, W.; Meng, O.

    2006-01-01T23:59:59.000Z

    This paper is concerned with the energy efficiency calculations and optimization for an indoor solar-assisted heating swimming pool in GuangZhou. The heating energy requirements for maintaining the pool constant temperature were investigated, which...

  13. Geothermal br Resource br Area Geothermal br Resource br Area...

    Open Energy Info (EERE)

    Zone Mesozoic granite granodiorite Aurora Geothermal Area Aurora Geothermal Area Walker Lane Transition Zone Geothermal Region MW Beowawe Hot Springs Geothermal Area Beowawe Hot...

  14. Earth Sciences Division. Annual report 1979

    SciTech Connect (OSTI)

    Not Available

    1980-07-01T23:59:59.000Z

    This annual report contains articles describing the research programs conducted during the year. Major areas of interest include geothermal exploration technology, geothermal energy conversion technology, reservoir engineering, geothermal environmental research, basic geosciences studies, applied geosciences studies, nuclear waste isolation, and marine sciences. (ACR)

  15. Geothermal Resource Analysis and Structure of Basin and Range Systems, Especially Dixie Valley Geothermal Field, Nevada

    SciTech Connect (OSTI)

    David Blackwell; Kenneth Wisian; Maria Richards; Mark Leidig; Richard Smith; Jason McKenna

    2003-08-14T23:59:59.000Z

    Publish new thermal and drill data from the Dizie Valley Geothermal Field that affect evaluation of Basin and Range Geothermal Resources in a very major and positive way. Completed new geophysical surveys of Dizie Valley including gravity and aeromagnetics and integrated the geophysical, seismic, geological and drilling data at Dizie Valley into local and regional geologic models. Developed natural state mass and energy transport fluid flow models of generic Basin and Range systems based on Dizie Valley data that help to understand the nature of large scale constraints on the location and characteristics of the geothermal systems. Documented a relation between natural heat loss for geothermal and electrical power production potential and determined heat flow for 27 different geothermal systems. Prepared data set for generation of a new geothermal map of North American including industry data totaling over 25,000 points in the US alone.

  16. Geothermal: Sponsored by OSTI -- State geothermal commercialization...

    Office of Scientific and Technical Information (OSTI)

    State geothermal commercialization programs in seven Rocky Mountain states. Semiannual progress report, July-December 1980 Geothermal Technologies Legacy Collection HelpFAQ | Site...

  17. Iceland Geothermal Conference 2013 - Geothermal Policies and...

    Broader source: Energy.gov (indexed) [DOE]

    Iceland Geothermal Conference presentation on March 7, 2013 by Chief Engineer Jay Nathwani of the U.S. Department of Energys Geothermal Technologies Office. icelandgeothermalco...

  18. SMU Geothermal Conference 2011 - Geothermal Technologies Program...

    Broader source: Energy.gov (indexed) [DOE]

    DOE Geothermal Technologies Program presentation at the SMU Geothermal Conference in June 2011. gtpsmuconferencereinhardt2011.pdf More Documents & Publications Low Temperature...

  19. Geothermal evaluation of Kansas: preliminary results

    SciTech Connect (OSTI)

    Steeples, D.W.; Ruscetta, C.A.; Foley, D. (eds.)

    1981-05-01T23:59:59.000Z

    Information from the literature and from four drill holes in Kansas is presented. Geothermal gradients and heat flow measurements are presented. An aeromagnetic map of Kansas is included. (MHR)

  20. Bibliography of the geological and geophysical aspects of hot dry rock geothermal resources

    SciTech Connect (OSTI)

    Heiken, G.; Sayer, S.

    1980-02-01T23:59:59.000Z

    This is the first issue of an annual compilation of references that are useful to the exploration, understanding and development of the hot dry rock geothermal resource.

  1. Earthquake and Geothermal Energy

    E-Print Network [OSTI]

    Kapoor, Surya Prakash

    2013-01-01T23:59:59.000Z

    The origin of earthquake has long been recognized as resulting from strike-slip instability of plate tectonics along the fault lines. Several events of earthquake around the globe have happened which cannot be explained by this theory. In this work we investigated the earthquake data along with other observed facts like heat flow profiles etc... of the Indian subcontinent. In our studies we found a high-quality correlation between the earthquake events, seismic prone zones, heat flow regions and the geothermal hot springs. As a consequence, we proposed a hypothesis which can adequately explain all the earthquake events around the globe as well as the overall geo-dynamics. It is basically the geothermal power, which makes the plates to stand still, strike and slip over. The plates are merely a working solid while the driving force is the geothermal energy. The violent flow and enormous pressure of this power shake the earth along the plate boundaries and also triggers the intra-plate seismicity. In the light o...

  2. Annual DOE active solar heating and cooling contractors' review meeting. Premeeting proceedings and project summaries

    SciTech Connect (OSTI)

    None,

    1981-09-01T23:59:59.000Z

    Ninety-three project summaries are presented which discuss the following aspects of active solar heating and cooling: Rankine solar cooling systems; absorption solar cooling systems; desiccant solar cooling systems; solar heat pump systems; solar hot water systems; special projects (such as the National Solar Data Network, hybrid solar thermal/photovoltaic applications, and heat transfer and water migration in soils); administrative/management support; and solar collector, storage, controls, analysis, and materials technology. (LEW)

  3. Estimating the Energy, Demand and Cost Savings from a Geothermal Heat Pump ESPC Project at Fort Polk, LA Through Utility Bill Analysis.

    SciTech Connect (OSTI)

    Shonder, John A [ORNL; Hughes, Patrick [ORNL

    2006-01-01T23:59:59.000Z

    Energy savings performance contracts (ESPCs) are a method of financing energy conservation projects using the energy cost savings generated by the conservation measures themselves. Ideally, reduced energy costs are visible as reduced utility bills, but in fact this is not always the case. On large military bases, for example, a single electric meter typically covers hundreds of individual buildings. Savings from an ESPC involving only a small number of these buildings will have little effect on the overall utility bill. In fact, changes in mission, occupancy, and energy prices could cause substantial increases in utility bills. For this reason, other, more practical, methods have been developed to measure and verify savings in ESPC projects. Nevertheless, increasing utility bills--when ESPCs are expected to be reducing them--are problematic and can lead some observers to question whether savings are actually being achieved. In this paper, the authors use utility bill analysis to determine energy, demand, and cost savings from an ESPC project that installed geothermal heat pumps in the family housing areas of the military base at Fort Polk, Louisiana. The savings estimates for the first year after the retrofits were found to be in substantial agreement with previous estimates that were based on submetered data. However, the utility bills also show that electrical use tended to increase as time went on. Since other data show that the energy use in family housing has remained about the same over the period, the authors conclude that the savings from the ESPC have persisted, and increases in electrical use must be due to loads unassociated with family housing. This shows that under certain circumstances, and with the proper analysis, utility bills can be used to estimate savings from ESPC projects. However, these circumstances are rare and over time the comparison may be invalidated by increases in energy use in areas unaffected by the ESPC.

  4. Annual Energy Outlook 2012

    Gasoline and Diesel Fuel Update (EIA)

    9 U.S. Energy Information Administration | Annual Energy Outlook 2012 Table G1. Heat rates Fuel Units Approximate heat content Coal 1 Production . . . . . . . . . . . . . . . . . ....

  5. Geothermal program review 16: Proceedings. A strategic plan for geothermal research

    SciTech Connect (OSTI)

    NONE

    1998-12-31T23:59:59.000Z

    The proceedings contain 21 papers arranged under the following topical sections: Exploration technology (4 papers); Reservoir technology (5 papers); Energy conversion technology (8 papers); Drilling technology (2 papers); and Direct use and geothermal heat pump technology (2 papers). An additional section contains a report on a workshop on dual-use technologies for hydrothermal and advanced geothermal reservoirs.

  6. Geothermal Technologies Program Overview Presentation at Stanford...

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

    Overview Presentation at Stanford Geothermal Workshop Geothermal Technologies Program Overview Presentation at Stanford Geothermal Workshop General overview of Geothermal...

  7. National Conference of State Legislatures Geothermal Project. Final report, February 1978--September 1982

    SciTech Connect (OSTI)

    None

    1983-01-31T23:59:59.000Z

    The principal objectives of the NCSL Geothermal Project was to stimulate and assist state legislative action to encourage the efficient development of geothermal resources, including the use of groundwater heat pumps. The project had the following work tasks: (1) initiate state geothermal policy reviews; (2) provide technical assistance to state geothermal policy reviews; (3) serve as liaison with geothermal community; and (4) perform project evaluation.

  8. Factors controlling reservoir quality in tertiary sandstones and their significance to geopressured geothermal production. Annual report, May 1, 1979-May 31, 1980

    SciTech Connect (OSTI)

    Loucks, R.G.; Richmann, D.L.; Milliken, K.L.

    1980-07-01T23:59:59.000Z

    Differing extents of diagenetic modification is the factor primarily responsible for contrasting regional reservoir quality of Tertiary sandstones from the Upper and Lower Texas Gulf Coast. Detailed comparison of Frio sandstones from the Chocolate Bayou/Danbury Dome area, Brazoria County, and Vicksburg sandstones from the McAllen Ranch Field area, Hidalgo County, reveals that extent of diagenetic modification is most strongly influenced by (1) detrital mineralogy and (2) regional geothermal gradients. Vicksburg sandstones from the McAllen Ranch Field area are less stable, chemically and mechanically, than Frio sandstones from the Chocolate Bayou/Danbury dome area. Vicksburg sandstones are mineralogically immature and contain greater proportions of feldspars and rock fragments than do Frio sandstones. Thr reactive detrital assemblage of Vicksubrg sandstones is highly susceptible to diagenetic modification. Susceptibility is enhanced by higher than normal geothermal gradients in the McAllen Ranch Field area. Thus, consolidation of Vicksburg sandstones began at shallower depth of burial and precipitation of authigenic phases (especially calcite) was more pervasive than in Frio sandstones. Moreover, the late-stage episode of ferroan calcite precipitation that occluded most secondary porosity in Vicksburg sandstones did not occur significantly in Frio sandstones. Therefore, regional reservoir quality of Frio sandstones from Brazoria County is far better than that characterizing Vicksburg sandstones from Hidalgo County, especially at depths suitable for geopressured geothermal energy production.

  9. Anne Arundel County- Solar and Geothermal Equipment Property Tax Credit

    Broader source: Energy.gov [DOE]

    This is a one-time credit from county property taxes on residential structures that use solar and geothermal energy equipment for heating and cooling and solar energy equipment for water heating...

  10. DOE Awards $20 Million to Develop Geothermal Power Technologies...

    Energy Savers [EERE]

    fluid will then be used as the heat source for a heating system, a greenhouse, and a fish farm. This "cascading" use of the geothermal resource is meant to improve the economics...

  11. Hydrogeological model of a high energy geothermal field (Bouillante area, Guadeloupe, French West Indies)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Hydrogeological model of a high energy geothermal field (Bouillante area, Guadeloupe, French West, France 3. BRGM, Department of Geothermal Energy 3, Av. Claude Guillemin - 45060 Orléans Cedex 2, France Abstract The Bouillante geothermal field presently provides about 8% of the annual electricity needs

  12. Ball State Completes Largest U.S. Ground-Source Geothermal System...

    Broader source: Energy.gov (indexed) [DOE]

    ground-source geothermal system, the nation's largest geothermal heating and cooling system, DOE announced on March 20. DOE played a part in the project by providing a 5 million...

  13. The influence of geothermal sources on deep ocean temperature, salinity, and flow fields

    E-Print Network [OSTI]

    Speer, Kevin G. (Kevin George)

    1988-01-01T23:59:59.000Z

    This thesis is a study of the effect of geothermal sources on the deep circulation, temperature and salinity fields. In Chapter 1 background material is given on the strength and distribution of geothermal heating. In ...

  14. Dual-temperature Kalina cycle for geothermal-solar hybrid power systems

    E-Print Network [OSTI]

    Boghossian, John G

    2011-01-01T23:59:59.000Z

    This thesis analyzes the thermodynamics of a power system coupling two renewable heat sources: low-temperature geothermal and a high-temperature solar. The process, referred to as a dual-temperature geothermal-solar Kalina ...

  15. SOLAR ENERGY PROGRAM: CHAPTER FROM THE ENERGY AND ENVIRONMENT ANNUAL REPORT 1979

    E-Print Network [OSTI]

    Authors, Various

    2010-01-01T23:59:59.000Z

    water, indus- trial waste heat, geothermal brines, and oceansources as industrial waste heat, low-temperature geothermalenergy from low-grade or waste heat can be constructed;

  16. PROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 31 -February 2, 2011

    E-Print Network [OSTI]

    Stanford University

    OF THE GEOTHERMAL PARAMETERS OF THE GROUND IN CYPRUS FOR THE EXPLOITATION OF GEOTHERMAL ENERGY AND THE IMPACT aware of the benefits of geothermal energy and in order to increase the share of energy from renewable sources consumed in heating and cooling in 2020, promotes the geothermal energy systems through a Scheme

  17. Deep geothermal reservoirs evolution: from a modeling perspective BRGM, 3 Avenue Claude Guillemin, BP 36009 -45060 Orlans Cedex 2, France

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Deep geothermal reservoirs evolution: from a modeling perspective S. Lopez1 1 BRGM, 3 Avenue Claude deep geothermal reservoirs evolution and management based on examples ranging from direct use of geothermal heat to geothermal electricity production. We will try to focus on French experiences

  18. Red River Valley REA- Heat Pump Loan Program

    Broader source: Energy.gov [DOE]

    The Red River Valley Rural Electric Association (RRVREA) offers a loan program to its members for air-source and geothermal heat pumps. Loans are available for geothermal heat pumps at a 5% fixed...

  19. Heat Supply Who What Where and -Why

    E-Print Network [OSTI]

    Columbia University

    ................................................. 6 District-heating (DH) supply: key figures .............................. 6 What is biomass Geothermics ..........................................................................11 Waste for heat supplyHeat Supply in Denmark Who What Where and - Why #12;Title: Heat Supply in Denmark - Who What Where

  20. Geothermal Money Book [Geothermal Outreach and Project Financing

    SciTech Connect (OSTI)

    Elizabeth Battocletti

    2004-02-01T23:59:59.000Z

    Small business lending is big business and growing. Loans under $1 million totaled $460 billion in June 2001, up $23 billion from 2000. The number of loans under $100,000 continued to grow at a rapid rate, growing by 10.1%. The dollar value of loans under $100,000 increased 4.4%; those of $100,000-$250,000 by 4.1%; and those between $250,000 and $1 million by 6.4%. But getting a loan can be difficult if a business owner does not know how to find small business-friendly lenders, how to best approach them, and the specific criteria they use to evaluate a loan application. This is where the Geothermal Money Book comes in. Once a business and financing plan and financial proposal are written, the Geothermal Money Book takes the next step, helping small geothermal businesses locate and obtain financing. The Geothermal Money Book will: Explain the specific criteria potential financing sources use to evaluate a proposal for debt financing; Describe the Small Business Administration's (SBA) programs to promote lending to small businesses; List specific small-business friendly lenders for small geothermal businesses, including those which participate in SBA programs; Identify federal and state incentives which are relevant to direct use and small-scale (< 1 megawatt) power generation geothermal projects; and Provide an extensive state directory of financing sources and state financial incentives for the 19 states involved in the GeoPowering the West (GPW). GPW is a U.S. Department of Energy-sponsored activity to dramatically increase the use of geothermal energy in the western United States by promoting environmentally compatible heat and power, along with industrial growth and economic development. The Geothermal Money Book will not: Substitute for financial advice; Overcome the high exploration, development, and financing costs associated with smaller geothermal projects; Remedy the lack of financing for the exploration stage of a geothermal project; or Solve financing problems that are not related to the economic soundness of your project or are caused by things outside of your control.

  1. Postdoctoral Research Awards Annual Research Meeting: John Shelton...

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

    Documents & Publications EERE Postdoctoral Research Awards Annual Meeting Posters A History or Geothermal Energy Research and Development in the United States: Drilling 1976-2006...

  2. Geothermal Resources and Technologies

    Broader source: Energy.gov [DOE]

    This page provides a brief overview of geothermal energy resources and technologies supplemented by specific information to apply geothermal systems within the Federal sector.

  3. Geothermal Technologies Legacy Collection

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    programmatic reports Geothermal resource maps International journal citations DOEOSTI--C126 0811 A valuable source of DOE-sponsored geothermal information at your fingertips...

  4. Director, Geothermal Technologies Office

    Broader source: Energy.gov [DOE]

    The mission of the Geothermal Technologies Office (GTO) is to accelerate the development and deployment of clean, domestic geothermal resources that will promote a stronger, more productive economy...

  5. Geothermal Technologies Subject Portal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Programmatic Reports Geothermal Resource Maps International journal citations DOEOSTI--C126 1008 A valuable source of DOE-sponsored geothermal information at your fingertips Hot...

  6. Geothermal Technologies Program Overview

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

    Jay Nathwani Acting Program Manager Geothermal Technologies Program Office of Energy Efficiency and Renewable Energy The Geothermal Technologies Program Overview May 18 2010 Energy...

  7. The Earth Institute, Columbia University14 Annual Donor Report 2009 15 Heat waves are on the rise as the climate changes and average temperatures increase.

    E-Print Network [OSTI]

    The Earth Institute, Columbia University14 Annual Donor Report 2009 15 Heat waves are on the rise University and Barnard College. Known as the Columbia Green Roof Consortium, it is led by a team of two Earth solutions in a responsible and scientific way--and Columbia had plenty of roof space to work with. "They

  8. Geothermal Program Review XVII: proceedings. Building on 25 years of Geothermal Partnership with Industry

    SciTech Connect (OSTI)

    NONE

    1999-10-01T23:59:59.000Z

    The US Department of Energy's Office (DOE) of Geothermal Technologies conducted its annual Program Review XVII in Berkeley, California, on May 18--20, 1999. The theme this year was "Building on 25 Years of Geothermal Partnership with Industry". In 1974, Congress enacted Public Law 93-410 which sanctioned the Geothermal Energy Coordination and Management Project, the Federal Government's initial partnering with the US geothermal industry. The annual program review provides a forum to foster this federal partnership with the US geothermal industry through the presentation of DOE-funded research papers from leaders in the field, speakers who are prominent in the industry, topical panel discussions and workshops, planning sessions, and the opportunity to exchange ideas. Speakers and researchers from both industry and DOE presented an annual update on research in progress, discussed changes in the environment and deregulated energy market, and exchanged ideas to refine the DOE Strategic Plan for research and development of geothermal resources in the new century. A panel discussion on Climate Change and environmental issues and regulations provided insight into the opportunities and challenges that geothermal project developers encounter. This year, a pilot peer review process was integrated with the program review. A team of geothermal industry experts were asked to evaluate the research in progress that was presented. The evaluation was based on the Government Performance and Results Act (GPRA) criteria and the goals and objectives of the Geothermal Program as set forth in the Strategic Plan. Despite the short timeframe and cursory guidance provided to both the principle investigators and the peer reviewers, the pilot process was successful. Based on post review comments by both presenters and reviewers, the process will be refined for next year's program review.

  9. 18512004 annual heat budget of the continental landmasses Shaopeng Huang1

    E-Print Network [OSTI]

    Huang, Shaopeng

    to 2000 a total of 10.4 ZJ (Zetta-Joules or 1021 J) of thermal energy had been absorbed by Africa, Asia to 2004 for Asia, Europe, North America, Africa, Australia, and South America. 2. Method [3] The heat climate is accompanied by changing energy in various climate system components including the continental

  10. Sinterable ceramic powders from laser heated gas phase reactions and rapidly solidified ceramic materials : annual report.

    E-Print Network [OSTI]

    Haggerty, John Scarseth

    1984-01-01T23:59:59.000Z

    CO[subscript 2] lasers have been employed to heat reactant gases to synthesize Si, Si[subscript 3] N[subscript 4] and SiC powders. The powders are small, uniform in size, nonagglomerated, highly pure and of controlled ...

  11. USER’S GUIDE of TOUGH2-EGS-MP: A Massively Parallel Simulator with Coupled Geomechanics for Fluid and Heat Flow in Enhanced Geothermal Systems VERSION 1.0

    SciTech Connect (OSTI)

    Xiong, Yi [Colorado School of Mines; Fakcharoenphol, Perapon [Colorado School of Mines; Wang, Shihao [Colorado School of Mines; Winterfeld, Philip H. [Colorado School of Mines; Zhang, Keni [Lawrence Berkeley National Laboratory; Wu, Yu-Shu [Colorado School of Mines

    2013-12-01T23:59:59.000Z

    TOUGH2-EGS-MP is a parallel numerical simulation program coupling geomechanics with fluid and heat flow in fractured and porous media, and is applicable for simulation of enhanced geothermal systems (EGS). TOUGH2-EGS-MP is based on the TOUGH2-MP code, the massively parallel version of TOUGH2. In TOUGH2-EGS-MP, the fully-coupled flow-geomechanics model is developed from linear elastic theory for thermo-poro-elastic systems and is formulated in terms of mean normal stress as well as pore pressure and temperature. Reservoir rock properties such as porosity and permeability depend on rock deformation, and the relationships between these two, obtained from poro-elasticity theories and empirical correlations, are incorporated into the simulation. This report provides the user with detailed information on the TOUGH2-EGS-MP mathematical model and instructions for using it for Thermal-Hydrological-Mechanical (THM) simulations. The mathematical model includes the fluid and heat flow equations, geomechanical equation, and discretization of those equations. In addition, the parallel aspects of the code, such as domain partitioning and communication between processors, are also included. Although TOUGH2-EGS-MP has the capability for simulating fluid and heat flows coupled with geomechanical effects, it is up to the user to select the specific coupling process, such as THM or only TH, in a simulation. There are several example problems illustrating applications of this program. These example problems are described in detail and their input data are presented. Their results demonstrate that this program can be used for field-scale geothermal reservoir simulation in porous and fractured media with fluid and heat flow coupled with geomechanical effects.

  12. Hot Dry Rock; Geothermal Energy

    SciTech Connect (OSTI)

    None

    1990-01-01T23:59:59.000Z

    The commercial utilization of geothermal energy forms the basis of the largest renewable energy industry in the world. More than 5000 Mw of electrical power are currently in production from approximately 210 plants and 10 000 Mw thermal are used in direct use processes. The majority of these systems are located in the well defined geothermal generally associated with crustal plate boundaries or hot spots. The essential requirements of high subsurface temperature with huge volumes of exploitable fluids, coupled to environmental and market factors, limit the choice of suitable sites significantly. The Hot Dry Rock (HDR) concept at any depth originally offered a dream of unlimited expansion for the geothermal industry by relaxing the location constraints by drilling deep enough to reach adequate temperatures. Now, after 20 years intensive work by international teams and expenditures of more than $250 million, it is vital to review the position of HDR in relation to the established geothermal industry. The HDR resource is merely a body of rock at elevated temperatures with insufficient fluids in place to enable the heat to be extracted without the need for injection wells. All of the major field experiments in HDR have shown that the natural fracture systems form the heat transfer surfaces and that it is these fractures that must be for geothermal systems producing from naturally fractured formations provide a basis for directing the forthcoming but, equally, they require accepting significant location constraints on HDR for the time being. This paper presents a model HDR system designed for commercial operations in the UK and uses production data from hydrothermal systems in Japan and the USA to demonstrate the reservoir performance requirements for viable operations. It is shown that these characteristics are not likely to be achieved in host rocks without stimulation processes. However, the long term goal of artificial geothermal systems developed by systematic engineering procedures at depth may still be attained if high temperature sites with extensive fracturing are developed or exploited. [DJE -2005

  13. Geothermal Tomorrow

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), Geothermal Technologies ProgramDemonstration

  14. Great Western Malting Company geothermal project, Pocatello, Idaho. Final report

    SciTech Connect (OSTI)

    Christensen, N.T.; McGeen, M.A.; Corlett, D.F.; Urmston, R.

    1981-12-23T23:59:59.000Z

    The Great Western Malting Company recently constructed a barley malting facility in Pocatello, Idaho, designed to produce 6.0 million bushels per year of brewing malt. This facility uses natural gas to supply the energy for germination and kilning processes. The escalating cost of natural gas has prompted the company to look at alternate and more economical sources of energy. Trans Energy Systems has investigated the viabiity of using geothermal energy at the new barley processing plant. Preliminary investigations show that a geothermal resource probably exists, and payback on the installation of a system to utilize the resource will occur in under 2 years. The Great Western Malting plant site has geological characteristics which are similar to areas where productive geothermal wells have been established. Geological investigations indicate that resource water temperatures will be in the 150 to 200/sup 0/F range. Geothermal energy of this quality will supply 30 to 98% of the heating requirements currently supplied by natural gas for this malting plant. Trans Energy Systems has analyzed several systems of utilizing the geothermal resource at the Great Western barley malting facility. These systems included: direct use of geothermal water; geothermal energy heating process water through an intermediary heat exchanger; coal or gas boosted geothermal systems; and heat pump boosted geothermal system. The analysis examined the steps that are required to process the grain.

  15. Geothermal energy production with supercritical fluids

    DOE Patents [OSTI]

    Brown, Donald W.

    2003-12-30T23:59:59.000Z

    There has been invented a method for producing geothermal energy using supercritical fluids for creation of the underground reservoir, production of the geothermal energy, and for heat transport. Underground reservoirs are created by pumping a supercritical fluid such as carbon dioxide into a formation to fracture the rock. Once the reservoir is formed, the same supercritical fluid is allowed to heat up and expand, then is pumped out of the reservoir to transfer the heat to a surface power generating plant or other application.

  16. Erosion of heat exchanger tubes in fluidized beds. Annual report, 1990

    SciTech Connect (OSTI)

    Johnson, E.K.; Flemmer, R.L.C.

    1991-01-01T23:59:59.000Z

    This final report describes the activities of the 3-year project entitled ``Erosion of Heat Exchanger Tubes In Fluidized Beds.`` which was completed at the end of 1990. Project accomplishments include the collection of a substantial body of wear data In a 24in. {times} 24in. fluidized bed, comparative wear results In a 6in. {times} 6in. fluidized bed, the development of a dragometer and the collection of a comprehensive set of drag force data in the 24in. {times} 24in. bed, Fast Fourier Transform (FFT) analysis of bubble probe data to establish dominant bubble frequencies in the 24in. {times} 24in. bed, the use of a heat flux gauge for measurement of heat transfer coefficients in the 24in. {times} 24in. bed and the modeling of the tube wear in the 24in. {times} 24in. bed. Analysis of the wear data from the 24in. square bed indicates that tube wear increases with increase in superficial velocity, and with increase in tube height. The latter effect is a result of the tubes higher up in the bed seeing greater movement of dense phase than tubes lower down In the bed. In addition, tube wear was found to decrease with increase in particle size, for constant superficial velocity. Three models of tube wear were formulated and provided acceptable prediction of wear when compared with the experimental data.

  17. Geothermal Today: 2005 Geothermal Technologies Program Highlights

    SciTech Connect (OSTI)

    Not Available

    2005-09-01T23:59:59.000Z

    This DOE/EERE Geothermal Technologies Program publication highlights accomplishments and activities of the program during the last two years.

  18. Guide to Geothermal Heat Pumps

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To: CongestionDevelopment ofofthe PublicDocument providesDeployment

  19. Geothermal: Sponsored by OSTI -- National Geothermal Data System...

    Office of Scientific and Technical Information (OSTI)

    National Geothermal Data System: Case Studies on Exploration and Development of Potential Geothermal Sites Through Distributed Data Sharing Geothermal Technologies Legacy...

  20. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Home Exploration Activity: Geothermal Literature Review At Lightning Dock Geothermal Area (Lienau, 1990) Exploration Activity Details Location Lightning Dock Geothermal Area...

  1. Geothermal: Sponsored by OSTI -- Development of a geothermal...

    Office of Scientific and Technical Information (OSTI)

    Development of a geothermal resource in a fractured volcanic formation: Case study of the Sumikawa Geothermal Field, Japan Geothermal Technologies Legacy Collection HelpFAQ | Site...

  2. Geothermal: Sponsored by OSTI -- Recovery Act: Geothermal Data...

    Office of Scientific and Technical Information (OSTI)

    Recovery Act: Geothermal Data Aggregation: Submission of Information into the National Geothermal Data System, Final Report DOE Project DE-EE0002852 June 24, 2014 Geothermal...

  3. Geothermal: Sponsored by OSTI -- Calpine geothermal visitor center...

    Office of Scientific and Technical Information (OSTI)

    Calpine geothermal visitor center upgrade project An interactive approach to geothermal outreach and education at The Geysers Geothermal Technologies Legacy Collection HelpFAQ |...

  4. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Lightning Dock Geothermal Area (Smith, 1978) Exploration Activity Details Location Lightning Dock Geothermal Area Exploration Technique Geothermal Literature Review Activity Date...

  5. Geothermal: Sponsored by OSTI -- A study of geothermal drilling...

    Office of Scientific and Technical Information (OSTI)

    A study of geothermal drilling and the production of electricity from geothermal energy Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search...

  6. National Geothermal Data System (NGDS) Geothermal Data Domain...

    Open Energy Info (EERE)

    NGDS) Geothermal Data Domain: Assessment of Geothermal Community Data Needs Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: National Geothermal...

  7. Geothermal: Sponsored by OSTI -- The Preston Geothermal Resources...

    Office of Scientific and Technical Information (OSTI)

    The Preston Geothermal Resources; Renewed Interest in a Known Geothermal Resource Area Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us HomeBasic Search...

  8. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Rafferty, 1997) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal Literature Review At Lightning Dock Geothermal Area (Rafferty, 1997)...

  9. Geothermal publications list for Geopowering the West States

    SciTech Connect (OSTI)

    None

    2004-12-01T23:59:59.000Z

    A list of geothermal publications is provided for each of the states under the ''GeoPowering the West'' program. They are provided to assist the various states in developing their geothermal resources for direct-use and electric power applications. Each state publication list includes the following: (1) General papers on various direct-uses and electric power generation available from the Geo-Heat Center either by mail or on-line at: http://geoheat.oit.edu. (2) General Geo-Heat Center Quarterly Bulletin articles related to various geothermal uses--also available either by mail or on-line; (3) Publications from other web sites such as: Geothermal-Biz.com; NREL, EGI, GEO and others ; and (4) Geothermal Resources Council citations, which are available from their web site: www.geothermal.org.

  10. Assessment of the geothermal resources of Carson-Eagle valleys and Big Smoky Valley, Nevada. First annual report, May 1, 1979-May 30, 1980

    SciTech Connect (OSTI)

    Trexler, D.T.; Koenig, B.A.; Flynn, T.; Bruce, J.L.

    1980-01-01T23:59:59.000Z

    Two geothermal investigations were completed in three Nevada locations. The regions studied were selected from areas outlined as having direct utilization potential (Trexler and others, 1979) and included the Carson-Eagle Valley, Bis Smoky Valley and Caliente. Studies were organized around the completion of a group of tasks in each area. These tasks included: geologic reconnaissance, gravity surveys, aerial photography, fluid sampling and analysis, shallow depth temperature probe surveys, soil mercury surveys, shallow electrical resistivity measurements, and temperature gradient hole drilling. Goals of the project were to provide regional information about the nature and extent of the resources and to offer a critical evaluation of the techniques employed. Results from the work in the Carson-Eagle Valley and Big Smoky Valley are presented. (MHR)

  11. THE DEFINITION OF ENGINEERING DEVELOPMENT AND RESEARCH PROBLEMS RELATING TO THE USE OF GEOTHERMAL FLUIDS FOR ELECTRIC POWER GENERATION AND NONELECTRIC HEATING

    E-Print Network [OSTI]

    Apps, J.A.

    2011-01-01T23:59:59.000Z

    GENERATION AND NONELECTRIC HEATING I J. A. Apps I NTRODUCT IGENERATION AND NONELECTRIC HEATING li I J. A. Apps NovemberGENERATION AND NONELECTRIC HEATING J. A. Apps Earth Sciences

  12. Enhanced geothermal systems (EGS) with CO2 as heat transmission fluid--A scheme for combining recovery of renewable energy with geologic storage of CO2

    E-Print Network [OSTI]

    Pruess, K.

    2010-01-01T23:59:59.000Z

    effects on heat extraction rates and the water content ofof heat extraction for CO 2 and water- based systems, we hadover water-based systems, including larger heat extraction

  13. Alaska geothermal bibliography

    SciTech Connect (OSTI)

    Liss, S.A.; Motyka, R.J.; Nye, C.J. (comps.)

    1987-05-01T23:59:59.000Z

    The Alaska geothermal bibliography lists all publications, through 1986, that discuss any facet of geothermal energy in Alaska. In addition, selected publications about geology, geophysics, hydrology, volcanology, etc., which discuss areas where geothermal resources are located are included, though the geothermal resource itself may not be mentioned. The bibliography contains 748 entries.

  14. Geothermal Tomorrow 2008

    SciTech Connect (OSTI)

    Not Available

    2008-09-01T23:59:59.000Z

    Brochure describing the recent activities and future research direction of the DOE Geothermal Program.

  15. Geothermal Prospects in Colorado

    Broader source: Energy.gov [DOE]

    Geothermal Prospects in Colorado presentation at the April 2013 peer review meeting held in Denver, Colorado.

  16. Geothermal Technologies Newsletter

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy's (DOE) Geothermal Technologies Newsletter features the latest information about its geothermal research and development efforts. The Geothermal Resources Council (GRC)— a tax-exempt, non-profit, geothermal educational association — publishes quarterly as an insert in its GRC Bulletin.

  17. GEOTHERMAL SUBSIDENCE RESEARCH PROGRAM PLAN

    E-Print Network [OSTI]

    Lippmann, Marcello J.

    2010-01-01T23:59:59.000Z

    Administration, Division of Geothermal Energy. Two teams ofassociated with geothermal energy development. These g o a lthe division of Geothermal Energy. TASK 1 Identify Areas for

  18. GEOTHERMAL SUBSIDENCE RESEARCH PROGRAM PLAN

    E-Print Network [OSTI]

    Lippmann, Marcello J.

    2010-01-01T23:59:59.000Z

    associated with geothermal energy development. These g o a lthe division of Geothermal Energy. TASK 1 Identify Areas forLaboratory, NSF Geothermal Energy Conference, Pasadena,

  19. GEOTHERMAL SUBSIDENCE RESEARCH PROGRAM PLAN

    E-Print Network [OSTI]

    Lippmann, Marcello J.

    2010-01-01T23:59:59.000Z

    of Subsiding Areas and Geothermal Subsidence Potential25 Project 2-Geothermal Subsidence Potential Maps . . . . .Subsidence Caused by a Geothermal Project and Subsidence Due

  20. Video Resources on Geothermal Technologies

    Broader source: Energy.gov [DOE]

    Geothermal video offerings at the Department of Energy include simple interactive illustrations of geothermal power technologies and interviews on initiatives in the Geothermal Technologies Office.