National Library of Energy BETA

Sample records for annual geothermal heat

  1. Geothermal Heat Pump Manufacturing Activities

    Annual Energy Outlook

    8 Geothermal heat pump shipments by origin, 2008 and 2009 (rated capacity in tons) Origin ... Administration (EIA), Form EIA-902, "Annual Geothermal Heat Pump Manufacturers Survey

  2. Geothermal Heat Pump Manufacturing Activities

    Annual Energy Outlook

    0 Geothermal heat pump domestic shipments by customer type, 2008 and 2009 (rated capacity ... Administration (EIA), Form EIA-902, "Annual Geothermal Heat Pump Manufacturers Survey

  3. Geothermal Heat Pump Manufacturing Activities

    Gasoline and Diesel Fuel Update

    1 Geothermal heat pump domestic shipments by sector and model type, 2009 (rated capacity ... Administration (EIA), Form EIA-902, "Annual Geothermal Heat Pump Manufacturers Survey

  4. Geothermal Heat Pump Manufacturing Activities

    Annual Energy Outlook

    Geothermal heat pump shipments by model type, 2000 - 2009 (number of units) ARI-320 ... Administration (EIA), Form EIA-902, "Annual Geothermal Heat Pump Manufacturers Survey."

  5. Geothermal Heat Pump Manufacturing Activities

    Gasoline and Diesel Fuel Update

    Rated capacity of geothermal heat pump shipments by model type, 2000 - 2009 (tons) ARI-320 ... Administration (EIA), Form EIA-902, "Annual Geothermal Heat Pump Manufacturers Survey."

  6. Geothermal Heat Pump Manufacturing Activities

    Gasoline and Diesel Fuel Update

    6 Geothermal heat pump-related sales as a percentage of total company sales revenue, 2008 ... U.S. Energy Information Administration (EIA), Form EIA-902, "Annual Geothermal Heat Pump

  7. Geothermal Heat Pump Manufacturing Activities

    Annual Energy Outlook

    Type of Activity 2008 2009 Geothermal Heat Pump or System Design 17 17 Prototype Geothermal Heat Pump Development 12 13 Prototype Systems Geothermal Development 5 7 Wholesale ...

  8. Geothermal Heat Pump Manufacturing Activities

    Gasoline and Diesel Fuel Update

    defined as geothermal heat pump unit with all the necessary functional components, except for installation materials. These include geothermal heat pump, air handler, heat ...

  9. Geothermal Heat Pumps for Federal Buildings

    SciTech Connect

    1999-08-01

    OFFICE OF GEOTHERMAL TECHNOLOGIES Geothermal Heat Pumps for Federal Buildings The U.S. Government spends approximately $8 billion annually on its energy needs. To reduce energy use in Federal buildings, President Bill Clinton issued Executive Order 13123 in June 1999, which calls for a 35% reduction in Federal energy use from 1985 levels by 2010. Geothermal heat pumps--when installed in virtually any type of building--can help accomplish this goal with energy savings of up to 40%. Geothermal he.

  10. Geothermal Resources Council Annual Meeting

    Energy.gov [DOE]

    Reno, Nevada The 2015 Geothermal Resources Council (GRC) Annual Meeting and the Geothermal Energy Association (GEA) Geothermal Energy Expo will be held in Reno, Nevada, on September 20–23. As the world’s largest annual geothermal conference and expo, this year’s event will bring together leaders in the geothermal industry; showcase the latest in geothermal research, exploration, development, and utilization; and feature workshops on important industry topics and field trips to nearby geothermal sites. Register today to reserve your spot.

  11. Geothermal District Heating Economics

    Energy Science and Technology Software Center

    1995-07-12

    GEOCITY is a large-scale simulation model which combines both engineering and economic submodels to systematically calculate the cost of geothermal district heating systems for space heating, hot-water heating, and process heating based upon hydrothermal geothermal resources. The GEOCITY program simulates the entire production, distribution, and waste disposal process for geothermal district heating systems, but does not include the cost of radiators, convectors, or other in-house heating systems. GEOCITY calculates the cost of district heating basedmore » on the climate, population, and heat demand of the district; characteristics of the geothermal resource and distance from the distribution center; well-drilling costs; design of the distribution system; tax rates; and financial conditions.« less

  12. Geothermal Heat Pumps | Department of Energy

    Energy Saver

    Heat Pump Systems Geothermal Heat Pumps Geothermal Heat Pumps Watch how geothermal heat ... As with any heat pump, geothermal and water-source heat pumps are able to heat, cool, and, ...

  13. Stanford Geothermal Workshop 2012 Annual Meeting

    Energy.gov [DOE]

    Presentation slides for the Stanford Geothermal Workshop Annual Meeting presentation by Doug Hollett, Geothermal Technologies Program Manager

  14. Geothermal Technologies Office Annual Report 2012

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

    YEAR IN REVIEW Annual Report 2012 GEOTHERMAL TECHNOLOGIES OFFICE Energy Efficiency & Renewable Energy For more information about the Geothermal Technologies Office, visit www. geothermal. energy.gov. Contents 2 6 9 14 16 17 18 Hydrothermal Enhanced Geothermal Systems Systems Analysis GTO Team Meetings that Matter Acronym List Education and Outreach Program Updates www.geothermal.energy.gov / email geothermal@ee.doe.gov DOE/EE-0833 * December 2012 The Geothermal Technologies Office Annual

  15. 2014 Geothermal Resources Council Annual Meeting

    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.

  16. Kethcum District Heating District Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  17. Midland District Heating District Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  18. Philip District Heating District Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  19. Energy 101: Geothermal Heat Pumps

    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 ...

  20. Energy 101: Geothermal Heat Pumps

    ScienceCinema

    None

    2016-07-12

    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.

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

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

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

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

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

    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 on the numbers to see the sites. CLOSE About the Points About the Data What is Heat Flow? Heat Flow (mW/m^2) 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 150 250 View All Maps Addthis

  3. Lakeview Residences Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Lakeview Residences Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Lakeview Residences Space Heating Low Temperature Geothermal Facility...

  4. Manzanita Estates District Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  5. Geothermal Heat Pumps are Scoring High Marks

    SciTech Connect

    2000-08-01

    Geothermal Energy Program Office of Geothermal and Wind Technologies Geothermal Heat Pumps are Scoring High Marks Geothermal heat pumps, one of the clean energy technology stars Geothermal heat pumps (GHPs) are one of the most cost-effective heating, cooling, and water heating systems available for both residential and commercial buildings. GHPs extract heat from the ground during the heating season and discharge waste heat to the ground during the cooling season. The U.S. Environmental Protecti

  6. What's New in Geothermal Heat Pumps | Department of Energy

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

    What's New in Geothermal Heat Pumps What's New in Geothermal Heat Pumps This workshop was held on May 12, 2009, in Las Vegas, Nevada, at the Connect '09 Conference & Expo, the annual national conference for electric cooperative marketing, communication, and member service professionals. The workshop focused on how geothermal heat pump systems can meet the energy goals of electric cooperatives while building system load factor and revenue. The presentations included information about

  7. Welcome to the Geothermal Technologies Program 2012 Annual Peer...

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

    Welcome to the Geothermal Technologies Program 2012 Annual Peer Review Welcome to the Geothermal Technologies Program 2012 Annual Peer Review GTP Annual Peer Review presentation by ...

  8. Geothermal Heat Pumps | Department of Energy

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

    Pumps Geothermal Heat Pumps Two commercial 36-ton geothermal heat pumps being used at the College of Southern Idaho. The Geothermal Technologies Office focuses only on electricity generation. For additional information about geothermal heating and cooling and ground source heat pumps, please visit the U.S. Department of Energy (DOE)'s Buildings Technologies Office. The geothermal heat pump, also known as the ground source heat pump, is a highly efficient renewable energy technology that is

  9. Guide to Geothermal Heat Pumps

    SciTech Connect

    2011-02-01

    Geothermal heat pumps, also known as ground source heat pumps, geoexchange, water-source, earth-coupled, and earth energy heat pumps, take advantage of this resource and represent one of the most efficient and durable options on the market to heat and cool your home.

  10. Geothermal Technologies Office Annual Report 2012

    SciTech Connect

    none,

    2012-12-31

    This annual report for the U.S. Department of Energy’s Geothermal Technologies Office highlights program areas, special projects, and accomplishments in 2012.

  11. Geothermal Heat Pump Grant Program

    Energy.gov [DOE]

    The definition of geothermal heat pump property does not include swimming pools, hot tubs, or any other energy storage device that has a primary function other than storage. In addition, systems...

  12. Purchasing Energy-Efficient Geothermal Heat Pumps | Department...

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

    Geothermal Heat Pumps Purchasing Energy-Efficient Geothermal Heat Pumps The Federal Energy Management Program (FEMP) provides acquisition guidance for geothermal heat pumps, a ...

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

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

    CanGEA Fifth Annual Geothermal Conference Presentation - Mapping & Database Workshop CanGEA Fifth Annual Geothermal Conference Presentation - Mapping & Database Workshop Mapping ...

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

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

    Geothermal Resources Council Annual Meeting - Doug Hollett Presentation, October 2011 Keynote presentation by Doug Hollett at the Geothermal Resources Council 35th Annual Meeting ...

  15. Geothermal Technologies Office Annual Report 2012 | Department of Energy

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

    Annual Report 2012 Geothermal Technologies Office Annual Report 2012 This annual report for the U.S. Department of Energys Geothermal Technologies Office highlights program areas, special projects, and accomplishments in 2012. geothermalannualreport2012.pdf (9.52 MB) More Documents & Publications Geothermal Technologies Office 2012 Peer Review Report GTO 2013 GRC Keynote Stanford Geothermal Workshop - Geothermal Technologies Office

  16. Geothermal Heat Pump Benefits Webinar | Department of Energy

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

    Pump Benefits Webinar Geothermal Heat Pump Benefits Webinar

  17. Corral Space Heating Low Temperature Geothermal Facility | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Corral Space Heating Low Temperature Geothermal Facility Facility Corral Sector Geothermal energy...

  18. Melozi Space Heating Low Temperature Geothermal Facility | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Melozi Space Heating Low Temperature Geothermal Facility Facility Melozi Sector Geothermal energy...

  19. Baranof Space Heating Low Temperature Geothermal Facility | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Baranof Space Heating Low Temperature Geothermal Facility Facility Baranof Sector Geothermal...

  20. Olene Gap Space Heating Low Temperature Geothermal Facility ...

    OpenEI (Open Energy Information) [EERE & EIA]

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Olene Gap Space Heating Low Temperature Geothermal Facility Facility Olene Gap Sector Geothermal...

  1. YMCA Space Heating Low Temperature Geothermal Facility | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    YMCA Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name YMCA Space Heating Low Temperature Geothermal Facility Facility YMCA Sector Geothermal...

  2. Geothermal Heat Pumps | Department of Energy

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

    Heat Pump Systems » Geothermal Heat Pumps Geothermal Heat Pumps Watch how geothermal heat pumps heat and cool buildings by concentrating the naturally existing heat contained within the earth -- a clean, reliable, and renewable source of energy. Geothermal heat pumps (GHPs), sometimes referred to as GeoExchange, earth-coupled, ground-source, or water-source heat pumps, have been in use since the late 1940s. They use the constant temperature of the earth as the exchange medium instead of the

  3. Boise geothermal district heating system

    SciTech Connect

    Hanson, P.J.

    1985-10-01

    This document describes the Boise geothermal district heating project from preliminary feasibility studies completed in 1979 to a fully operational system by 1983. The report includes information about the two local governments that participated in the project - the City of Boise, Idaho and the Boise Warm Springs Water District. It also discusses the federal funding sources; the financial studies; the feasibility studies conducted; the general system planning and design; design of detailed system components; the legal issues involved in production; geological analysis of the resource area; distribution and disposal; the program to market system services; and the methods of retrofitting buildings to use geothermal hot water for space heating. Technically this report describes the Boise City district heating system based on 170/sup 0/F water, a 4000 gpm production system, a 41,000 foot pipeline system, and system economies. Comparable data are also provided for the Boise Warm Springs Water District. 62 figs., 31 tabs.

  4. Human Health Science Building Geothermal Heat Pump Systems (Technical...

    Office of Scientific and Technical Information (OSTI)

    The facility design is a geothermal solar-thermal hybrid building utilizing both ... 15 GEOTHERMAL ENERGY Geothermal; solar thermal; desiccant; heat pump; energy ...

  5. Choosing and Installing Geothermal Heat Pumps | Department of...

    Energy Saver

    When selecting and installing a geothermal heat pump, consider the heating and cooling ... Evaluating Your Site for a Geothermal Heat Pump Shallow ground temperatures are relatively ...

  6. Geothermal Heat Pump Benchmarking Report

    SciTech Connect

    1997-01-17

    A benchmarking study was conducted on behalf of the Department of Energy to determine the critical factors in successful utility geothermal heat pump programs. A Successful program is one that has achieved significant market penetration. Successfully marketing geothermal heat pumps has presented some major challenges to the utility industry. However, select utilities have developed programs that generate significant GHP sales. This benchmarking study concludes that there are three factors critical to the success of utility GHP marking programs: (1) Top management marketing commitment; (2) An understanding of the fundamentals of marketing and business development; and (3) An aggressive competitive posture. To generate significant GHP sales, competitive market forces must by used. However, because utilities have functioned only in a regulated arena, these companies and their leaders are unschooled in competitive business practices. Therefore, a lack of experience coupled with an intrinsically non-competitive culture yields an industry environment that impedes the generation of significant GHP sales in many, but not all, utilities.

  7. 2014 Annual Report, Geothermal Technologies Office | Department of Energy

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

    4 Annual Report, Geothermal Technologies Office 2014 Annual Report, Geothermal Technologies Office A DOE-funded EGS demonstration at Newberry Volcano, Oregon could help unlock 100+GW of geothermal energy nationwide. source: Elisabet Metcalfe A DOE-funded EGS demonstration at Newberry Volcano, Oregon could help unlock 100+GW of geothermal energy nationwide. source: Elisabet Metcalfe The Energy Department's 2014 Geothermal Technologies Office (GTO) Annual Report-a product of the Office of Energy

  8. Geothermal Technologies Program Annual Peer Review Presentation By Doug

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

    Hollett | Department of Energy Annual Peer Review Presentation By Doug Hollett Geothermal Technologies Program Annual Peer Review Presentation By Doug Hollett 2012 Peer Review presentation by Doug Hollett, Program Manager, Geothermal Technologies Program gtp_2012peerreview_dhollett.pdf (893.66 KB) More Documents & Publications Stanford Geothermal Workshop - Geothermal Technologies Office Stanford Geothermal Workshop 2012 Annual Meeting FORGE, 2015 Peer Review Plenary

  9. Stanford Geothermal Workshop 2012 Annual Meeting

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

    Technologies Program Stanford Geothermal Workshop 2012 Annual Meeting Jan 30-Feb 1, 2012 Doug Hollett, Program Manager Glass Buttes, OR (DOE) Energy Efficiency & Renewable Energy eere.energy.gov Accelerate Near Term Hydrothermal Growth * Lower hydrothermal exploration risks and costs. * Lower hydrothermal cost of electricity to 6 cents/kWh by 2020. * Accelerate the development of 30 GWe of undiscovered hydrothermal resources. Secure the Future with Enhanced Geothermal Systems (EGS) *

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

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

    October 2011 | Department of Energy Resources Council Annual Meeting - Doug Hollett Presentation, October 2011 Geothermal Resources Council Annual Meeting - Doug Hollett Presentation, October 2011 Keynote presentation by Doug Hollett at the Geothermal Resources Council 35th Annual Meeting on October 24, 2011 in San Diego, California. grc_keynote_hollett_10-24-2011.pdf (1.09 MB) More Documents & Publications Stanford Geothermal Workshop 2012 Annual Meeting Geothermal Technologies Program

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

    SciTech Connect

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

    2014-10-01

    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.

  12. Canon City Area Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Canon City Area Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Canon City Area Space Heating Low Temperature Geothermal Facility Facility Canon...

  13. Warren Estates District Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  14. Idaho Capitol Mall District Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Idaho Capitol Mall District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Idaho Capitol Mall District Heating Low Temperature Geothermal Facility...

  15. Klamath County Shops Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Shops Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Klamath County Shops Space Heating Low Temperature Geothermal Facility Facility Klamath...

  16. Hunters Hot Spring Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Hot Spring Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Hunters Hot Spring Space Heating Low Temperature Geothermal Facility Facility Hunters...

  17. Modoc High School Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    High School Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Modoc High School Space Heating Low Temperature Geothermal Facility Facility Modoc...

  18. Medical Center Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  19. The Wilderness Lodge Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name The Wilderness Lodge Space Heating Low Temperature Geothermal Facility Facility The Wilderness...

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  1. Manley Hot Springs Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  2. Jump Steady Resort Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Jump Steady Resort Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Jump Steady Resort Space Heating Low Temperature Geothermal Facility Facility...

  3. Circle Hot Springs Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  4. Klamath Schools (7) Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Schools (7) Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Klamath Schools (7) Space Heating Low Temperature Geothermal Facility Facility...

  5. Health Spa Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  6. Desert Hot Springs Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  7. Vale Residences Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Residences Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Vale Residences Space Heating Low Temperature Geothermal Facility Facility Vale...

  8. Twin Peaks Motel Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Peaks Motel Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Twin Peaks Motel Space Heating Low Temperature Geothermal Facility Facility Twin...

  9. Lava Hot Springs Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  10. Hot Sulphur Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  11. Medical Hot Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  12. Klamath Residence (500) Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Residence (500) Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Klamath Residence (500) Space Heating Low Temperature Geothermal Facility...

  13. Van Norman Residences Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Norman Residences Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Van Norman Residences Space Heating Low Temperature Geothermal Facility...

  14. Cottonwood Hot Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  15. Stroppel Hotel Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Stroppel Hotel Space Heating Low Temperature Geothermal Facility Facility Stroppel Hotel Sector...

  16. Tecopa Hot Springs Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

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

    OpenEI (Open Energy Information) [EERE & EIA]

    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...

  18. Vale Slaughter House Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Slaughter House Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Vale Slaughter House Space Heating Low Temperature Geothermal Facility Facility...

  19. Arrowhead Hot Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  20. Box Canyon Motel Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Canyon Motel Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Box Canyon Motel Space Heating Low Temperature Geothermal Facility Facility Box...

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  2. Lolo Hot Springs Resort Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  3. Henley High School Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Henley High School Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Henley High School Space Heating Low Temperature Geothermal Facility Facility...

  4. Vichy Hot Springs Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  5. Buckhorn Mineral Wells Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Buckhorn Mineral Wells Space Heating Low Temperature Geothermal Facility Facility Buckhorn...

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  7. White Sulphur Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Sulphur Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name White Sulphur Springs Space Heating Low Temperature Geothermal Facility Facility...

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  9. Twin Springs Resort Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  12. Homestead Resort Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Resort Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Homestead Resort Space Heating Low Temperature Geothermal Facility Facility Homestead...

  13. Chico Hot Springs Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  14. Bell Island Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Bell Island Space Heating Low Temperature Geothermal Facility Facility Bell Island Sector...

  15. Mount Princeton Area Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Area Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Mount Princeton Area Space Heating Low Temperature Geothermal Facility Facility Mount...

  16. LDS Wardhouse Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Wardhouse Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name LDS Wardhouse Space Heating Low Temperature Geothermal Facility Facility LDS Wardhouse...

  17. Reno-Moana Area (300) Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Reno-Moana Area (300) Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Reno-Moana Area (300) Space Heating Low Temperature Geothermal Facility...

  18. Saratoga Springs Resort Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  20. Hillbrook Nursing Home Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Hillbrook Nursing Home Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Hillbrook Nursing Home Space Heating Low Temperature Geothermal Facility...

  1. Indian Valley Hospital Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Indian Valley Hospital Space Heating Low Temperature Geothermal Facility Facility Indian...

  2. Chena Hot Springs Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  3. Ft Bidwell Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Ft Bidwell Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Ft Bidwell Space Heating Low Temperature Geothermal Facility Facility Ft Bidwell...

  4. Breitenbush Hot Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  5. Bozeman Hot Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  6. Pinkerton Hot Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  9. Langel Valley Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Langel Valley Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Langel Valley Space Heating Low Temperature Geothermal Facility Facility Langel...

  10. LDS Church Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    LDS Church Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name LDS Church Space Heating Low Temperature Geothermal Facility Facility LDS Church...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    Jail Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Klamath County Jail Space Heating Low Temperature Geothermal Facility Facility Klamath...

  12. Jemez Springs Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Jemez Springs Space Heating Low Temperature Geothermal Facility Facility Jemez Springs Sector...

  13. Utah State Prison Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Prison Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Utah State Prison Space Heating Low Temperature Geothermal Facility Facility Utah State...

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  15. Surprise Valley Hospital Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Surprise Valley Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Surprise Valley Hospital Space Heating Low Temperature Geothermal...

  16. Del Rio Hot Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  17. Miracle Hot Spring Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Spring Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Miracle Hot Spring Space Heating Low Temperature Geothermal Facility Facility Miracle Hot...

  18. St. Mary's Hospital Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name St. Mary's Hospital Space Heating Low Temperature Geothermal Facility Facility St....

  19. Cotulla High School Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Cotulla High School Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Cotulla High School Space Heating Low Temperature Geothermal Facility...

  20. Ouray Municipal Pool Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Municipal Pool Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Ouray Municipal Pool Space Heating Low Temperature Geothermal Facility Facility...

  1. Miracle Hot Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  2. Marlin Hospital Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  3. Radium Hot Springs Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  4. Summer Lake Hot Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  5. Banbury Hot Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

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

    OpenEI (Open Energy Information) [EERE & EIA]

    Peppermill Hotel Casino Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Peppermill Hotel Casino Space Heating Low Temperature Geothermal Facility...

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  8. Indian Springs School Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    School Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Indian Springs School Space Heating Low Temperature Geothermal Facility Facility Indian...

  9. Geronimo Springs Museum Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Geronimo Springs Museum Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Geronimo Springs Museum Space Heating Low Temperature Geothermal Facility...

  10. Ophir Creek Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Ophir Creek Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Ophir Creek Space Heating Low Temperature Geothermal Facility Facility Ophir Creek...

  11. Burgdorf Hot Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  13. Jackson Well Springs Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

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

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  15. Klamath Churches (5) Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Churches (5) Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Klamath Churches (5) Space Heating Low Temperature Geothermal Facility Facility...

  16. Hi-Tech Fisheries Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Hi-Tech Fisheries Space Heating Low Temperature Geothermal Facility Facility Hi-Tech Fisheries...

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  18. Hot Lake RV Park Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  19. Geothermal Technologies Office Director Doug Hollett Keynotes at Annual

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

    Technical Conference of the Geothermal Resources Council in September | Department of Energy Director Doug Hollett Keynotes at Annual Technical Conference of the Geothermal Resources Council in September Geothermal Technologies Office Director Doug Hollett Keynotes at Annual Technical Conference of the Geothermal Resources Council in September GTO Director Doug Hollett took the stage this week at the Geothermal Resources Council industry meeting in Portland, Oregon to address barriers to

  20. Geothermal Heat Pump Basics | Department of Energy

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

    Geothermal Heat Pump Basics Geothermal Heat Pump Basics August 19, 2013 - 11:12am Addthis Text Version Geothermal heat pumps use the constant temperature of the earth as an exchange medium for heat. Although many parts of the country experience seasonal temperature extremes-from scorching heat in the summer to sub-zero cold in the winter-the ground a few feet below the earth's surface remains at a relatively constant temperature. Depending on the latitude, ground temperatures range from 45°F

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

    SciTech Connect

    Anderson, E. R.

    2010-12-14

    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.

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

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

    Geothermal Heat Pumps Energy 101: Geothermal Heat Pumps Addthis Description 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. Text Version Below is the text version for the Energy 101: Geothermal heat pumps

  3. GEOTHERMAL HEAT PUMP GROUTING MATERIALS

    SciTech Connect

    ALLAN,M.

    1998-04-01

    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.

  4. Geothermal Energy Production With Innovative Methods Of Geothermal Heat Recovery

    SciTech Connect

    Swenson, Allen; Darlow, Rick; Sanchez, Angel; Pierce, Michael; Sellers, Blake

    2014-12-19

    The ThermalDrive™ Power System (“TDPS”) offers one of the most exciting technological advances in the geothermal power generation industry in the last 30 years. Using innovations in subsurface heat recovery methods, revolutionary advances in downhole pumping technology and a distributed approach to surface power production, GeoTek Energy, LLC’s TDPS offers an opportunity to change the geothermal power industry dynamics.

  5. GRC Annual Meeting & GEA Geothermal Energy Expo | Department...

    Office of Environmental Management (EM)

    October 23, 2016 9:00AM EDT to October 26, 2016 5:00PM EDT GRC Annual Meeting & GEA Geothermal Energy Expo October 23-26, Sacramento, California, USA http:www.geothermal.org...

  6. Geothermal heat pumps for federal buildings

    SciTech Connect

    1999-09-02

    Geothermal heat pumps (GHPs) can provide significant energy savings to a wide range of Federal facilities. GHP equipment can be obtained and installed at no up-front cost through Energy Savings Performance Contracts (ESPCs) through energy service companies (ESCOs).

  7. Geothermal Heat Pumps | Department of Energy

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

    equipped, supply the house with hot water. Some models of geothermal systems are available with two-speed ... air-source system of the same heating and cooling capacity, the ...

  8. Gila Hot Springs District Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Low Temperature Geothermal Facility Facility Gila Hot Springs Sector Geothermal energy Type District Heating Location Gila Hot Springs, New Mexico Coordinates Show Map...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    Abstract The proposed project was to take the existing geothermal greenhouse and home heating systems, which consisted of pumping geothermal water and steam through passive...

  10. Welcome to the Geothermal Technologies Program 2012 Annual Peer Review |

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

    Department of Energy Welcome to the Geothermal Technologies Program 2012 Annual Peer Review Welcome to the Geothermal Technologies Program 2012 Annual Peer Review GTP Annual Peer Review presentation by Ava Coy gtp_2012peerreview_opening_acoy.pdf (164.51 KB) More Documents & Publications 2014 Advanced Grid Modeling Program Peer Review 2012 Smart Grid Peer Review 2013 Peer Review Agenda

  11. Annual US Geothermal Power Production and Development Report...

    OpenEI (Open Energy Information) [EERE & EIA]

    and Development Report Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Annual US Geothermal Power Production and Development Report Abstract To increase...

  12. Guide to Geothermal Heat Pumps

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

    among the most effcient and comfortable heating and cooling technologies available because they use the earth's natural heat to provide heating, cooling, and often, water heating. ...

  13. List of Geothermal Heat Pumps Incentives | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    using Renewable Fuels Geothermal Electric Ground Source Heat Pumps Hydroelectric energy Hydrogen Landfill Gas Methanol Passive Solar Space Heat Photovoltaics Solar Space Heat...

  14. Town of Pagosa Springs geothermal heating system

    SciTech Connect

    Garcia, M.B.

    1997-08-01

    The Town of Pagosa Springs has owned and operated a geothermal heating system since December 1982 to provide geothermal heating during the fall, winter and spring to customers in this small mountain town. Pagosa Springs is located in Archuleta County, Colorado in the southwestern corner of the State. The Town, nestled in majestic mountains, including the Continental Divide to the north and east, has an elevation of 7,150 feet. The use of geothermal water in the immediate area, however, dates back to the 1800`s, with the use of Ute Bands and the Navajo Nation and later by the U.S. Calvery in the 1880`s (Lieutenant McCauley, 1878). The Pagosa area geothermal water has been reported to have healing and therapeutic qualities.

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

    SciTech Connect

    Rosca, Marcel; Maghiar, Teodor

    1996-01-24

    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.

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

    SciTech Connect

    Rosca, M.; Maghiar, T.

    1996-12-31

    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.

  17. Fossil fuel-fired peak heating for geothermal greenhouses

    SciTech Connect

    Rafferty, K.

    1997-01-01

    Greenhouses are a major application of low-temperature geothermal resources. In virtually all operating systems, the geothermal fluid is used in a hot water heating system to meet 100% of both the peak and annual heating requirements of the structure. This strategy is a result of the relatively low costs associated with the development of most US geothermal direct-use resources and past tax credit programs which penalized systems using any conventional fuel sources. Increasingly, greenhouse operations will encounter limitations in available geothermal resource flow due either to production or disposal considerations. As a result, it will be necessary to operate additions at reduced water temperatures reflective of the effluent from the existing operations. Water temperature has a strong influence on heating system design. Greenhouse operators tend to have unequivocal preferences regarding heating system equipment. Many growers, particularly cut flower and bedding plant operators, prefer the {open_quotes}bare tube{close_quotes} type heating system. This system places small diameter plastic tubes under the benches or adjacent to the plants. Hot water is circulated through the tubes providing heat to the plants and the air in the greenhouse. Advantages include the ability to provide the heat directly to the plants, low cost, simple installation and the lack of a requirement for fans to circulate air. The major disadvantage of the system is poor performance at low (<140{degrees}F) water temperatures, particularly in cold climates. Under these conditions, the quantity of tubing required to meet the peak heating load is substantial. In fact, under some conditions, it is simply impractical to install sufficient tubing in the greenhouse to meet the peak heating load.

  18. Geothermal Heat Pumps - Heating Mode | Department of Energy

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

    Heating Mode Geothermal Heat Pumps - Heating Mode In winter, fluid passing through this vertical, closed loop system is warmed by the heat of the earth; this heat is then transferred to the building. Heating Mode Animated Slide (PowerPoint 493 KB) Note: To view this animation in PowerPoint use 'Slide Show' mode. Simple illustration showing the transfer of heat from the ground to a building space to provide space heating. Simple illustration showing the transfer of heat from the ground to a

  19. Geothermal Heat Pump Manufacturing Activities

    Gasoline and Diesel Fuel Update

    ARI-320 Water-Source Heat Pumps 10 ARI-325 Ground Water-Source Heat Pumps 13 ARI-330 Ground Source Closed-Loop Heat Pumps 11 ARI-870 Direct Geoexhange Heat Pumps 2 Other Non-ARI ...

  20. DOE Webinar … Residential Geothermal Heat Pump Retrofits (Presentation)

    Office of Energy Efficiency and Renewable Energy (EERE)

    DOE webinar, Residential Geothermal Heat Pump Retrofits presented at the DOE EERE Webinar Series on Dec. 14, 2010.

  1. Choosing and Installing Geothermal Heat Pumps | Department of Energy

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

    and Installing Geothermal Heat Pumps Choosing and Installing Geothermal Heat Pumps These geothermal heating and cooling units installed in the basement of a new home are tied to a complex array of underground coils to keep indoor temperatures comfortable. | Photo courtesy of ©iStockphoto/BanksPhotos These geothermal heating and cooling units installed in the basement of a new home are tied to a complex array of underground coils to keep indoor temperatures comfortable. | Photo courtesy of

  2. Measuring the Costs & Benefits of Nationwide Geothermal Heat Deployment

    SciTech Connect

    Battocletti, Elizabeth C.; Glassley, William E.

    2013-02-28

    Recovery Act: Measuring the Costs & Economic, Social, Environmental Benefits of Nationwide Geothermal Heat Deployment & the Potential Employment

  3. 2013 Annual Report -- Geothermal Technologies Office | Department...

    Energy.gov [DOE] (indexed site)

    Raft River Geothermal Plant in Idaho represents both a conventional hydrothermal setting and an EGS demonstration project. Raft River Geothermal Plant in Idaho represents both a...

  4. 2015 Annual Report - Geothermal Technologies Office (Program...

    Office of Scientific and Technical Information (OSTI)

    Research Org: EERE Publication and Product Library Sponsoring Org: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Office (EE-4G) (Geothermal ...

  5. Purchasing Energy-Efficient Geothermal Heat Pumps

    Energy.gov [DOE]

    FEMP provides acquisition guidance for geothermal heat pumps, a product category covered by ENERGY STAR. Federal laws and requirements mandate that agencies purchase ENERGY STAR-qualified products or FEMP-designated products in all product categories covered by these programs and in any acquisition actions that are not specifically exempted by law.

  6. Covered Product Category: Residential Geothermal Heat Pumps

    Energy.gov [DOE]

    FEMP provides acquisition guidance across a variety of product categories, including geothermal heat pumps, which are an ENERGY STAR-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.

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

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

    OpenEI (Open Energy Information) [EERE & EIA]

    Heat flow studies in the Coso Geothermal Area were conducted at China Lake, California. Temperature measurements were completed in nine of the heat flow boreholes. Temperatures...

  9. Blueprint for financing geothermal district heating in California

    Office of Scientific and Technical Information (OSTI)

    (Technical Report) | SciTech Connect Technical Report: Blueprint for financing geothermal district heating in California Citation Details In-Document Search Title: Blueprint for financing geothermal district heating in California The current legal and investment climate surrounding geothermal development is depicted. Changes that would make the climate more favorable to direct heat geothermal development are recommended. The Boise, Susanville, and Brady Hot Springs projects are analyzed.

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

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

    Geothermal Technologies Program Annual Peer Review May 7, 2012 Doug Hollett, Program Manager Geothermal Technologies Program Office of Energy Efficiency and Renewable Energy U.S. Department of Energy 2 Energy Efficiency & Renewable Energy eere.energy.gov Accelerate Near Term Hydrothermal Growth * Decrease exploration risks and costs. * Lower cost of electricity to 6 cents/kWh by 2020. * Development of 30 GWe of undiscovered resources. Secure the Future with Enhanced Geothermal Systems (EGS)

  11. Osmotic Heat Engine for Energy Production from Low Temperature Geothermal

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

    Resources | Department of Energy Osmotic Heat Engine for Energy Production from Low Temperature Geothermal Resources Osmotic Heat Engine for Energy Production from Low Temperature Geothermal Resources Project objective: to demonstrate the economic viability of an Osmotic Heat Engine for electricity production from extremely low-grade geothermal resources. low_mcginnis_osmotic_heat_engine.pdf (327.23 KB) More Documents & Publications Osmotic Heat Engine for Energy Production from Low

  12. Ground Source Geothermal District Heating and Cooling System (Technical

    Office of Scientific and Technical Information (OSTI)

    Report) | SciTech Connect Technical Report: Ground Source Geothermal District Heating and Cooling System Citation Details In-Document Search Title: Ground Source Geothermal District Heating and Cooling System Ball State University converted its campus from a coal-fired steam boiler district heating system to a ground source heat pump geothermal district system that produces simultaneously hot water for heating and chilled water for cooling. This system will include the installation of 3,600

  13. Property:Geothermal/AnnualGenGwhYr | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search This is a property of type Number. Pages using the property "GeothermalAnnualGenGwhYr" Showing 25 pages using this property. (previous 25) (next 25) 4 4 UR...

  14. Property:Geothermal/AnnualGenBtuYr | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search This is a property of type Number. Pages using the property "GeothermalAnnualGenBtuYr" Showing 25 pages using this property. (previous 25) (next 25) 4 4 UR...

  15. Imperial County geothermal development annual meeting: summary

    SciTech Connect

    Not Available

    1983-01-01

    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)

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

    OpenEI (Open Energy Information) [EERE & EIA]

    Research. () . Related Geothermal Exploration Activities Activities (5) Geothermal Literature Review At Geysers Area (Ranalli & Rybach, 2005) Geothermal Literature Review At...

  17. Geothermal Heat Pump Manufacturing Activities

    Gasoline and Diesel Fuel Update

    ARI-320 ARI-325330 ARI-870 Other Non-ARI Rated 2008 13.1 19.5 17.5 13.5 2009 14.6 20.4 18.2 14.3 ARI-320 Water-Source Heat Pumps. ARI-325 Ground Water-Source Heat Pumps. ...

  18. Geothermal Heat Pump Manufacturing Activities

    Gasoline and Diesel Fuel Update

    ARI-320 ARI-325330 ARI-870 Other Non-ARI Rated 2008 4.4 4.0 4.2 3.6 2009 3.9 4.1 4.3 3.8 ARI-320 Water-Source Heat Pumps. ARI-325 Ground Water-Source Heat Pumps. ARI-330 ...

  19. Geothermal Heat Pump Manufacturing Activities

    Gasoline and Diesel Fuel Update

    4 Employment in the geothremal heat pump industry, 2007 - 2009 2007 1,219 2008 1,537 2009 1,832 Year Person Years Source: U.S. Energy Information Administration (EIA), Form ...

  20. Alternative institutional vehicles for geothermal district heating

    SciTech Connect

    Bressler, S.; Gardner, T.C.; King, D.; Nimmons, J.T.

    1980-06-01

    The attributes of various institutional entities which might participate in various phases of geothermal heating applications are described. Public entities considered include cities, counties, and special districts. Private entities discussed include cooperative organizations and non-member-owned private enterprises. The powers, authority and manner of operation of each of the institutional entities are reviewed. Some of the public utility regulatory implications which may affect choices among available alternatives are considered. (MHR)

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

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

    Geothermal Heat Pumps Energy 101: Geothermal Heat Pumps January 4, 2011 - 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) 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. John Schueler John Schueler Former New Media Specialist, Office of

  2. Monitoring SERC Technologies -Geothermal/Ground Source Heat Pumps |

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

    Department of Energy Monitoring SERC Technologies -Geothermal/Ground Source Heat Pumps Monitoring SERC Technologies -Geothermal/Ground Source Heat Pumps On Nov. 3, 2011, Dave Peterson, a Project Leader at the National Renewable Energy Laboratory, presented a Webinar about Geothermal/Ground Source Heat Pumps and how to properly monitor their installation. View the webinar presentation or read the transcript. More Information Some resources and tools mentioned in the presentation include: U.S.

  3. Research and Development Roadmap. Geothermal (Ground-Source) Heat Pumps

    SciTech Connect

    Goetzler, William; Guernsey, Matt; Kar, Rahul

    2012-10-01

    Roadmap identifying potential activities and technical innovations that may enable substantial improvements in residential and commercial Geothermal Heat Pumps (GHP) installed cost and/or efficiency.

  4. Heat flow in the Coso geothermal area, Inyo County, California...

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Heat flow in the Coso geothermal area, Inyo County, California Abstract Obvious surface...

  5. Low Temperature Direct Use Space Heating Geothermal Facilities...

    OpenEI (Open Energy Information) [EERE & EIA]

    Space Heating Geothermal Facilities Jump to: navigation, search Loading map... "format":"googlemaps3","type":"ROADMAP","types":"ROADMAP","SATELLITE","HYBRID","TERRAIN","limit":8...

  6. Oklahoma Municipal Power Authority - Geothermal Heat Pump Rebate...

    Energy.gov [DOE] (indexed site)

    < Back Eligibility Commercial Industrial Residential Agricultural Savings Category Geothermal Heat Pumps Commercial Refrigeration Equipment Maximum Rebate 1,000ton Program Info...

  7. Estimated Maintenance Cost Savings from a Geothermal Heat Pump...

    Office of Scientific and Technical Information (OSTI)

    Contract at Fort Polk, LA Citation Details In-Document Search Title: Estimated Maintenance Cost Savings from a Geothermal Heat Pump Energy Savings Performance Contract at ...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    to establish basic qualitative relationships between structure, heat input, and permeability distribution, and the resulting geothermal system. A series of steady state,...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    search Tool Summary LAUNCH TOOL Name: Geothermal Heat Pumps: Market Status, Barriers to Adoption, and Actions to Overcome Barriers AgencyCompany Organization: Oak Ridge...

  10. Avila Hot Springs Space Heating Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    Facility Facility Avila Hot Springs Sector Geothermal energy Type Space Heating Location San Luis Obispo, California Coordinates 35.2827524, -120.6596156 Show Map Loading...

  11. 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 ...

  12. CanGEA Fifth Annual Geothermal Conference Presentation - Mapping & Database

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

    Workshop | Department of Energy CanGEA Fifth Annual Geothermal Conference Presentation - Mapping & Database Workshop CanGEA Fifth Annual Geothermal Conference Presentation - Mapping & Database Workshop Mapping and database workshop presentation presented at the Canadian Geothermal Energy Association Fifth Annual Geothermal Conference on March 21, 2013 by Arlene Anderson, Physical Scientist Lead for Geothermal Data Provision, Resource Mapping and Energy and Water Life Cycle Analysis

  13. Welcome to the Geothermal Technologies Program 2012 Annual Peer Review

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

    Energy Efficiency & Renewable Energy eere.energy.gov Program Name or Ancillary Text eere.energy.gov Glass Buttes, OR (DOE) Welcome to the Geothermal Technologies Program 2012 Annual Peer Review Ava Coy, Project Officer Geothermal Technologies Program Office of Energy Efficiency and Renewable Energy U.S. Department of Energy 2 Energy Efficiency & Renewable Energy eere.energy.gov Program Name or Ancillary Text eere.energy.gov Presentation Overview HT Tools, Drilling Systems, Zonal

  14. Human Health Science Building Geothermal Heat Pumps | Department of Energy

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

    Human Health Science Building Geothermal Heat Pumps Human Health Science Building Geothermal Heat Pumps 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

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

    SciTech Connect

    Abel, Fred H.

    1981-07-07

    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%.

  16. 2013 Geothermal Technologies Office Annual Report

    SciTech Connect

    none,

    2014-02-01

    For the Geothermal Technologies Office (GTO), 2013 was a year of major achievements and repositioning to introduce major initiatives. Read all about our progress and successes this year, and as we look ahead, our new opportunities and initiatives.

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

    OpenEI (Open Energy Information) [EERE & EIA]

    Twenty-Nine Palms Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name City of Twenty-Nine Palms Space Heating Low Temperature Geothermal Facility...

  18. Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade

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

    | Department of Energy Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade 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. gshp_talley_flathead_electric.pdf (395.01 KB) More Documents & Publications Development of Design and Simulation Tool for

  19. Choosing and Installing Geothermal Heat Pumps | Department of...

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

    translates into a GHP using one unit of electricity to move three units of heat from the earth. According to the EPA, geothermal heat pumps can reduce energy consumption -- and...

  20. Enhanced Geothermal Systems: Comparing Water and CO2 as Heat...

    Office of Scientific and Technical Information (OSTI)

    ENHANCED GEOTHERMAL SYSTEMS (EGS): COMPARING WATER AND CO 2 AS HEAT TRANSMISSION FLUIDS ... with supercritical CO 2 instead of water as heat transmission fluid (D.W. Brown, 2000). ...

  1. Schutz's Hot Spring Space Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    of Technology's Geo-Heat Center Retrieved from "http:en.openei.orgwindex.php?titleSchutz%27sHotSpringSpaceHeatingLowTemperatureGeothermalFacility&oldid305547" ...

  2. Geothermal direct-heat utilization assistance

    SciTech Connect

    Not Available

    1992-12-01

    Progress on technical assistance, R D activities, technology transfer, and geothermal progress monitoring is summarized.

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

    ScienceCinema

    Pete McGrail

    2012-12-31

    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.

  4. Hawaiian direct-heat grants encourage geothermal creativity

    SciTech Connect

    Beck, A.G. )

    1988-12-01

    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.

  5. Increasing Confidence In Geothermal Heat Pump Design Methods

    SciTech Connect

    Shonder, John A; Hughes, Patrick

    1998-03-01

    Sizing the ground heat exchanger is one of the most important tasks in the design of a geothermal heat pump (GHP) system. Undersizing the heat exchanger can result in poor operating efficiency, reduced comfort, and nuisance heat pump lockouts on safety controls, while an oversized heat exchanger increases the installation cost of the system. The cost of ground loop installation may mean the difference between a feasible and an unfeasible project. Thus there are strong incentives to select heat exchanger lengths which allow satisfactory performance under all operating conditions within a feasible project budget. Sizing a ground heat exchanger is not a simple calculation. In the first place, there is usually some uncertainty in the peak block and annual space conditioning loads for the building to be served by the GHPs. The thermal properties of the soil formation may be unknown as well. Drilling logs and core samples can identify the soil type, but handbook values for the thermal properties of soils vary widely. Properly-done short-term on-site tests and data analysis to obtain thermal properties provide more accurate information, but since these tests are expensive they are usually only feasible in large projects. Given the uncertainties inherent in the process, if designers were truly working 'close to the edge' - selecting the absolute minimum heat exchanger length required to meet the predicted loads - one would expect to see more examples of undersized heat exchangers. Indeed there have been a few. However, over the past twenty years GHPs have been installed and successfully operated at thousands of locations all over the world. Conversations with customers and facility managers reveal a high degree of satisfaction with the technology, but studies of projects reveal far more cases of generously sized ground heat exchangers than undersized ones. This indicates that the uncertainties in space conditioning loads and soil properties are covered by a factor of

  6. 2014 Annual Report, Geothermal Technologies Office

    SciTech Connect

    none,

    2015-03-01

    In 2014, the Geothermal Technologies Office (GTO) made significant gains—increased budgets, new projects, key technology successes, and new staff. The Fiscal Year (FY) 2015 budget is at $55 million—roughly a 20% increase over FY 2014, and a strong vote of confidence in what the sector is doing to advance economically competitive renewable energy. GTO also remains committed to a balanced portfolio, which includes new hydrothermal development, EGS, and targeted opportunities in the low-temperature sector.

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

    SciTech Connect

    1995-05-01

    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.

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

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

    This project will impact the geothermal energy development market by showing that ground source heat pump systems using production and re-injection wells has the lowest total cost ...

  9. Electrical Energy and Demand Savings from a Geothermal Heat Pump...

    Office of Scientific and Technical Information (OSTI)

    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. ...

  10. Interpretive geothermal heat flow map of Colorado | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    geothermal heat flow map of ColoradoInfo GraphicMapChart Authors F.E. Berkman and C.J. Carroll Published Colorado Geological Survey Map Series, 2007 DOI Not Provided Check...

  11. District Wide Geothermal Heating Conversion Blaine County School District

    Energy.gov [DOE]

    This project will impact the geothermal energy development market by showing that ground source heat pump systems using production and re-injection wells has the lowest total cost of ownership of available HVAC replacement options.

  12. Geothermal Heating and Cooling Systems Featured on NBC Nightly News

    Energy.gov [DOE]

    NBC Nightly News recently featured a story on geothermal heating and cooling systems that are providing 30%-70% energy and cost savings for homeowners in Jordan, New York.

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

    SciTech Connect

    Not Available

    2011-02-01

    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.

  14. Geothermal Energy for Production of Heat and Electricity Economically Simulated

    Energy Science and Technology Software Center

    2015-02-28

    GEOPHIRES is a software tool to investigate technical and economic performance of a geothermal system. Possible end-use options are electricity, direct-use heat and co-generation.

  15. Geothermal Technologies Office Releases 2012 Annual Report |...

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

    FACTSHEET: THIRD ANNUAL ARPA-E ENERGY INNOVATION SUMMIT NETL's 2015 Carbon Storage Atlas Shows Increase in U.S. CO2 Storage Potential Obama Officials Announce Steps to Promote...

  16. Heat Flow And Geothermal Potential In The South-Central United...

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Heat Flow And Geothermal Potential In The South-Central United States Abstract Geothermal...

  17. Two 175 ton geothermal chiller heat pumps for leed platinum building...

    Office of Scientific and Technical Information (OSTI)

    Country of Publication: United States Language: English Subject: 15 GEOTHERMAL ENERGY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION geothermal; heat pump; chiller; ...

  18. CanGEA Fifth Annual Geothermal Conference Presentation - Mapping & Database Workshop

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

    (GTO) Arlene Anderson, Physical Scientist Lead for Geothermal Data Provision, Resource Mapping and Energy & Water Life Cycle Analysis http://www.eere.energy.gov/geothermal/ data_systems.html Enel Salt Wells - Courtesy of Enel Green Power - North America Canadian Geothermal Energy Association Fifth Annual Geothermal Conference, "Digging Deep" Mapping & Database Workshop March 21, 2013 Energy Efficiency & Renewable Energy eere.energy.gov National Geothermal Data System 2 U.S.

  19. Geothermal Technologies Office March

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

    Report Geothermal Technologies Office March 2015 The 2014 Annual Report of the Geothermal Technologies Office is a product of the United States Department of Energy, Office of Energy Efficiency and Renewable Energy. DOE/EERE-1160 * March 2015 This report spans calendar year 2014 achievements. Photographs are accredited herein. back cover photo: Geothermal heat at Pilgrim Hot Springs, Alaska. Source: C. Pike at the Alaska Center for Energy and Power 2014 Annual Report Geothermal Technologies

  20. Renewable energy technologies for federal facilities: Geothermal heat pump

    SciTech Connect

    1996-05-01

    This sheet summarizes information on geothermal heat pumps (GHPs), which extracts heat from the ground in the winter and transfers heat to the ground in the summer. More than 200,000 GHPs are operating in US; they can reduce energy consumption and related emissions by 23 to 44% compared to air-source heat pumps. Opportunities for use of GHPs, requirements, and cost are described. Important terms are defined.

  1. Residential Vertical Geothermal Heat Pump System Models: Calibration to Data:

    SciTech Connect

    Thornton, Jeff W.; McDowell, T. P.; Shonder, John A; Hughes, Patrick; Pahud, D.; Hellstrom, G.

    1997-06-01

    A detailed component-based simulation model of a geothermal heat pump system has been calibrated to monitored data taken from a family housing unit located at Fort Polk, Louisiana. The simulation model represents the housing unit, geothermal heat pump, ground heat exchanger, thermostat, blower, and ground-loop pump. Each of these component models was 'tuned' to better match the measured data from the site. These tuned models were then interconnect to form the system model. The system model was then exercised in order to demonatrate its capabilities.

  2. Residential vertical geothermal heat pump system models: Calibration to data

    SciTech Connect

    Thornton, J.W.; McDowell, T.P.; Shonder, J.A.; Hughes, P.J.; Pahud, D.; Hellstroem, G.A.J.

    1997-12-31

    A detailed component-based simulation model of a geothermal heat pump system has been calibrated to monitored data taken from a family housing unit located at Fort Polk, Louisiana. The simulation model represents the housing unit, geothermal heat pump, ground heat exchanger, thermostat, blower, and ground-loop pump. Each of these component models was tuned to better match the measured data from the site. These tuned models were then interconnected to form the system model. The system model was then exercised in order to demonstrate its capabilities.

  3. Geothermal Heat Pump Profitability in Energy Services

    SciTech Connect

    1997-11-01

    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.

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

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

    geothermal exploration at lower temperatures, thanks to a ... degrees Fahrenheit).This innovation increases the ... Hot Springs to reduce the cost of power from 0.30 per kWh ...

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

    DOEpatents

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

    2010-06-08

    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.

  6. Hybrid Geothermal Heat Pump System Research Geothermal Project...

    OpenEI (Open Energy Information) [EERE & EIA]

    are an innovation that has the potential to dramatically decrease this high first cost. HyGSHPs connect conventional ground-source heat pump (GSHP) equipment with...

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

    DOE Data Explorer

    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

  8. Geothermal district heating and cooling in Vicenza, Italy

    SciTech Connect

    Leoni, P.

    1995-06-01

    The discovery of a large low-enthalpy geothermal water reservoir under the city of Vicenza (110,000 people) in northern Italy, through an oil prospecting venture, opened up the opportunity to install a district heating system with low energy consumption. Although the geothermal water is at 67{degrees}C, this is insufficient for heating the city`s commercial and residential buildings using their existing high-temperature heat distribution systems. Heat pumps are, therefore, used to obtain optimum useful heat energy from the geothermal source. Experience so far suggests that the system can reduce energy consumption by up to 60%, or 3885 MWh/year. The 2000 m deep well was completed in 1983 and is the first such well in Italy to be located within an urban area, making it ideal as a heat source for a district heating system. It produces 100 m{sup 3}/h of low salt-content water. The {open_quotes}Vicenza{close_quotes} geothermal heating and cooling project was developed by {open_quotes}Aziende Industriali Muncipalizzate{close_quotes} from 1988 to 1991, a utility company owned by the city of Vicenza, with the purpose of distributing approximately 40,000 MWh year to residential and commercial buildings. The project includes the installation of a power plant, and a district heating and cooling network. A reduction in the consumption of conventional fuels both for heating and domestic water has been achieved through a highly-efficient thermodynamic system based on reversible heat pumps. The system provides heating in the winter and air conditioning in summer.

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

    SciTech Connect

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

    1982-10-01

    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.

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

    SciTech Connect

    1996-12-31

    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.

  11. Geothermal Heat Pump Manufacturing Activities - Energy Information...

    Gasoline and Diesel Fuel Update

    ARI-320, Water-Source Heat Pumps (WSHP). These systems are installed in commercial buildings, where a central chiller or boiler supplies chilled or heated water, respectively, to ...

  12. Geothermal heating facilities for Frontier Inn, Susanville, California

    SciTech Connect

    Not Available

    1982-03-01

    The Frontier Inn, located in Susanville, California, is a 38 unit motel composed of six major sections (coffee shop, A frame units, apartments, back units, two story units and office). These sections were built over a number of years and exhibit widely varying types of construction. Space heating is provided by primarily electric resistance equipment with some propane use. Domestic hot water is provided primarily by propane with some electric resistance. The coffee shop uses fuel oil for both space and domestic hot water heating. The City of Susanville is currently in the process of installing a geothermal district heating system. Although the motel site is not located in the area of present construction activity, it is expected that the pipeline will be extended in the near future. This study examines the potential of retrofitting the existing heating facilities at the Frontier Inn to geothermal.

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

    SciTech Connect

    1996-05-01

    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.

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

    SciTech Connect

    Not Available

    1980-12-31

    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.

  15. Method of extracting heat from dry geothermal reservoirs

    DOEpatents

    Potter, R.M.; Robinson, E.S.; Smith, M.C.

    1974-01-22

    Hydraulic fracturing is used to interconnect two or more holes that penetrate a previously dry geothermal reservoir, and to produce within the reservoir a sufficiently large heat-transfer surface so that heat can be extracted from the reservoir at a usefully high rate by a fluid entering it through one hole and leaving it through another. Introduction of a fluid into the reservoir to remove heat from it and establishment of natural (unpumped) convective circulation through the reservoir to accomplish continuous heat removal are important and novel features of the method. (auth)

  16. Geothermal Heat Pumps - Cooling Mode | Department of Energy

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

    Cooling Mode Geothermal Heat Pumps - Cooling Mode In summer, the fluid removes heat from the building and transfers it to the relatively cooler ground in order to cool the building. Cooling Mode Animated Slide (PowerPoint 493 KB) Note: To view this animation in PowerPoint use 'Slide Show' mode. Simple illustration showing the removal of heat from a building space and transfer to the ground to provide space cooling. Simple illustration showing the removal of heat from a building space and

  17. Community Geothermal Technology Program: Bottom heating system using geothermal power for propagation. Final report, Phases 1 and 2

    SciTech Connect

    Downing, J.C.

    1990-01-01

    The objective is to develop and study a bottom-heating system in a greenhouse utilizing geothermal energy to aid germination and speed growth of palms. Source of heat was geothermal brine from HGP-A well. The project was successful; the heat made a dramatic difference with certain varieties, such as Areca catechu (betelnut) with 82% germination with heat, zero without. For other varieties, germination rates were much closer. Quality of seed is important. Tabs, figs.

  18. Thermally conductive cementitious grout for geothermal heat pump systems

    DOEpatents

    Allan, Marita

    2001-01-01

    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.

  19. Department of Energy Announces $15 Million to Promote Innovative Geothermal Heat Recovery Methods and Technologies

    Energy.gov [DOE]

    The U.S. Department of Energy's (DOE) Geothermal Technologies Program today announced a $15 million funding opportunity to research and develop innovative methods to extract heat from geothermal resources from the Earth's crust to produce clean, renewable energy.

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

    SciTech Connect

    Not Available

    1993-08-01

    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.

  1. Fossil Fuel-fired Peak Heating for Geothermal Greenhouses | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    18(1):1-4. Related Geothermal Exploration Activities Activities (1) Geothermal Literature Review At Lightning Dock Geothermal Area (Rafferty, 1997) Areas (1) Lightning Dock...

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

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

    Sustainable Power | Department of Energy 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 Power April 12, 2013 - 11:17am Addthis Learn the basics of enhanced geothermal systems technology. I Infographic by <a href="http://energy.gov/contributors/sarah-gerrity">Sarah Gerrity</a>. Learn the basics of enhanced geothermal systems technology. I

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

    SciTech Connect

    Not Available

    1994-12-31

    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.

  4. Geothermal direct-heat utilization assistance. Quarterly project progress report, July 1994--September 1994

    SciTech Connect

    Not Available

    1994-10-01

    This paper is a third quarter 1994 report of activities of the Geo-Heat Center of Oregon Institute of Technology. It describes contacts with parties during this period related to assistance with geothermal direct heat applications. Areas dealt with include geothermal heat pumps, space heating, greenhouses, aquaculture, resources, and equipment. Research is also being conducted on failures of vertical lineshaft turbines in geothermal wells.

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

    SciTech Connect

    Not Available

    1981-01-01

    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.

  6. Geothermal

    Office of Scientific and Technical Information (OSTI)

    Geothermal Geothermal Legacy Collection Search the Geothermal Legacy Collection Search For Terms: Find + Advanced Search Advanced Search All Fields: Title: Full Text: ...

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

    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.

  8. Advanced Heat/Mass Exchanger Technology for Geothermal and solar Renewable Energy Systems

    Office of Energy Efficiency and Renewable Energy (EERE)

    Advanced Heat/Mass Exchanger Technology for Geothermal and solar Renewable Energy Systems presentation at the April 2013 peer review meeting held in Denver, Colorado.

  9. Elko District Heat District Heating Low Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    Annual Generation 22.20x109 Btuyr 6.50 GWhyr Delat T 40.00 F Load Factor 0.19 Start Up Date 1981 Contact Mike Lattin; 775-738-2210 References Oregon Institute of...

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

    SciTech Connect

    1997-10-01

    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.

  11. Geothermal direct-heat utilization assistance. Quarterly report, January - March 1997

    SciTech Connect

    Lienau, P.

    1997-04-01

    This report summarizes geothermal technical assistance, R&D and technology transfer activities of the Geo-Heat Center at Oregon Institute of Technology for the second quarter of FY-97. It describes 176 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 well pumping in commercial groundwater heat pump systems. A memorandum of understanding between the GHC and EIA is described. Work accomplishments on the Guidebook are discussed. 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.

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

    SciTech Connect

    Lienau, P.

    1993-06-01

    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.

  13. Human Health Science Building Geothermal Heat Pump Systems

    SciTech Connect

    Leidel, James

    2014-12-22

    The grant objectives of the DOE grant funded project have been successfully completed. The Human Health Building (HHB) was constructed and opened for occupancy for the Fall 2012 semester of Oakland University. As with any large construction project, some issues arose which all were overcome to deliver the project on budget and on time. The facility design is a geothermal / solar-thermal hybrid building utilizing both desiccant dehumidification and variable refrigerant flow heat pumps. It is a cooling dominant building with a 400 ton cooling design day load, and 150 ton heating load on a design day. A 256 vertical borehole (320 ft depth) ground source heat pump array is located south of the building under the existing parking lot. The temperature swing and performance over 2013 through 2015 shows the ground loop is well sized, and may even have excess capacity for a future building to the north (planned lab facility). The HHB achieve a US Green Building Counsel LEED Platinum rating by collecting 52 of the total 69 available LEED points for the New Construction v.2 scoring checklist. Being Oakland's first geothermal project, we were very pleased with the building outcome and performance with the energy consumption approximately 1/2 of the campus average facility, on a square foot basis.

  14. A BLUEPRINT FOR FINANCING GEOTHERMAL IN CALIFORNIA IZSTRICT HEATING

    Office of Scientific and Technical Information (OSTI)

    t DE82 0 0 8 3 3 5 A BLUEPRINT FOR FINANCING GEOTHERMAL IN CALIFORNIA IZSTRICT HEATING b n DEPARTMENT OF CONSERVATION J a n D e n t o n , Director RESOURCES AGENCY Huey D. Johnson , S e c r e t a r y STATE OF CALIFORNIA Edmund G. Brown Jr., G o v e r n o r DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency Thereof, nor any of their employees, makes any warranty, express or implied,

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

    OpenEI (Open Energy Information) [EERE & EIA]

    66.20x109 Btuyr 19.40 GWhyr Delat T 53.00 F Load Factor 0.07 Contact Kent Johnson; 208-384-3926 References Oregon Institute of Technology's Geo-Heat Center1 Boise...

  16. Geothermal Technology Breakthrough in Alaska: Harvesting Heat below Boiling Temperatures

    Energy.gov [DOE]

    The Energy Department is supporting geothermal exploration at lower temperatures, thanks to a technology breakthrough that allows geothermal energy to be produced at temperatures below the boiling...

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

    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....

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

    SciTech Connect

    Lienau, P.

    1996-11-01

    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. Studies of geothermal power and process heat applications in St. Lucia and Guatemala

    SciTech Connect

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

    1986-01-01

    Many countries have the potential to use geothermal energy for both power production and process heat applications. Two Los Alamos programs have studied the most effective use of geothermal energy in St. Lucia and Guatemala. The general objectives are (1) to reduce oil imports; (2) develop employment opportunities; and (3) make products more competitive. The initial St. Lucia studies emphasized power generation but a number of applications for the power plant's residual heat were also found and costs and systems have been determined. The costs of geothermal heat compare favorably with heat from other sources such as oil. In Guatemala, the development of the nation's first geothermal field is well advanced. Process heat applications and their coordination with power generation plants are being studied at Los Alamos. Guatemala has at least two fields that appear suitable for power and heat production. These fields are close to urban centers and to many potential heat applications.

  20. Geothermal direct-heat utilization assistance. Quarterly project progress report, October--December 1997

    SciTech Connect

    1997-01-01

    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 first quarter of FY-98 (October--December 1997). It describes 216 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 and material for high school debates, and material on geothermal heat pumps, resource and well data, space heating and cooling, greenhouses, aquaculture, equipment, district heating, resorts and spas, industrial applications, electric power and snow melting. Research activities include work on model construction specifications of lineshaft submersible pumps and plate heat exchangers, a comprehensive aquaculture developer package and revisions to the Geothermal Direct Use Engineering and Design Guidebook. Outreach activities include the publication of the Quarterly Bulletin (Vol. 18, No. 4) which was devoted entirely to geothermal activities in South Dakota, dissemination of information mainly through mailings of publications, tours of local geothermal uses, geothermal library acquisition and use, participation in workshops, short courses and technical meetings by the staff, and progress monitor reports on geothermal activities.

  1. National Geothermal Summit

    Energy.gov [DOE]

    The Geothermal Energy Association hosts its annual National Geothermal Summit in Reno, Nevada, June 3-4, 2015.

  2. Geothermal

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

    utilization of geothermal energy. This focus in geothermal related drilling research is the search for practical ... Online Abstracts and Reports Water Power Personnel Natural Gas ...

  3. Geothermal technology transfer for direct heat applications: Final report, 1983--1988

    SciTech Connect

    Lienau, P.J.; Culver, G.

    1988-01-01

    This report describes a geothermal technology transfer program, performed by Oregon Institute of Technology's Geo-Heat Center, used to aid in the development of geothermal energy for direct heat applications. It provides a summary of 88 technical assistance projects performed in 10 states for space heating, district heating, green-houses, aquaculture, industrial processing, small scale binary electric power generation and heat pump applications. It describes an inventory compiled for over 100 direct heat projects that contains information on project site, resource and engineering data. An overview of information services is provided to users of the program which includes; advisory, referrals, literature distribution, geothermal technology library, quarterly Bulletin, training programs, presentations and tours, and reporting of activities for the USDOE Geothermal Progress Monitor.

  4. Feasibility study for geothermal-water space heating for the Safford Federal Prison Camp, Safford, Arizona

    SciTech Connect

    Not Available

    1981-07-01

    The results of an economic feasibility study for the Oregon Institute of Technology regarding a geothermal heating system for the Federal Prison Camp, Safford, Arizona are presented. The following aspects were examined: heat load calculations of the buildings involved; mechanical equipment retrofits necessary to accept geothermal water for the purpose of space heating; cost estimates for the equipment retrofit; and evaluation of the equipment retrofit to determine economic feasibility.

  5. Geothermal Injection Technology Program: Annual progress report, Fiscal Year 1986

    SciTech Connect

    Not Available

    1987-07-01

    This report summarizes the Geothermal Injection Technology Program major activities in fiscal year 1986. The Idaho Engineering Laboratory (INEL) and the University of Utah Research Institute (UURI) have been conducting injection research and testing for this program, which was initiated in 1983. Activities at the INEL, representative element nodeling of fracture systems based on stochastic analysis, dual permeability modeling of flow in a fractured geothermal reservoir, and dual permeability model - laboratory and FRACSL-validation studies, are presented first, followed by the University of Utah Research Institute tracer development - experimental studies, which includes a brief description of activities planned for FY-1987.

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

    SciTech Connect

    Nick Rosenberry, Harris Companies

    2012-05-04

    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.

  7. Papers Presented - Geothermal Resources Council 1980 Annual Meeting

    SciTech Connect

    1980-10-01

    This report contains preprints of papers pertaining to geothermal energy development in the Eastern United States written by members of the Center for Metropolitan Planning and Research (Metro Center) and by the Applied Physics Laboratory (APL) both of The Johns Hopkins University.

  8. The Energy Department's Geothermal Technologies Office Releases 2013 Annual Report

    Office of Energy Efficiency and Renewable Energy (EERE)

    The 2013 Annual Report: featuring highlights and accomplishments in the Office's portfolio of projects is now available!

  9. Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade

    SciTech Connect

    Liu, Xiaobing

    2014-06-01

    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.

  10. Geothermal/Solar Hybrid Designs: Use of Geothermal Energy for...

    Office of Scientific and Technical Information (OSTI)

    GeothermalSolar Hybrid Designs: Use of Geothermal Energy for CSP Feedwater Heating Citation Details In-Document Search Title: GeothermalSolar Hybrid Designs: Use of Geothermal ...

  11. Geothermal Technologies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Geothermal Technologies Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Geothermal Technologies Geothermal energy can be utilized for electricity or heating...

  12. Feasibility analysis of geothermal district heating for Lakeview, Oregon

    SciTech Connect

    Not Available

    1980-12-23

    An analysis of the geothermal resource at Lakeview, Oregon, indicates that a substantial resource exists in the area capable of supporting extensive residential, commercial and industrial heat loads. Good resource productivity is expected with water temperatures of 200{degrees}F at depths of 600 to 3000 feet in the immediate vicinity of the town. Preliminary district heating system designs were developed for a Base Case serving 1170 homes, 119 commercial and municipal buildings, and a new alcohol fuel production facility; a second design was prepared for a downtown Mini-district case with 50 commercial users and the alcohol plant. Capital and operating costs were determined for both cases. Initial development of the Lakeview system has involved conducting user surveys, well tests, determinations of institutional requirements, system designs, and project feasibility analyses. A preferred approach for development will be to establish the downtown Mini-district and, as experience and acceptance are obtained, to expand the system to other areas of town. Projected energy costs for the Mini-district are $10.30 per million Btu while those for the larger Base Case design are $8.20 per million Btu. These costs are competitive with costs for existing sources of energy in the Lakeview area.

  13. Utilization of geothermal heat in tropical fruit-drying process

    SciTech Connect

    Chen, B.H.; Lopez, L.P.; King, R.; Fujii, J.; Tanaka, M.

    1982-10-01

    The power plant utilizes only the steam portion of the HGP-A well production. There are approximately 50,000 pounds per hour of 360/sup 0/F water produced (approximately 10 million Btu per hour) and the water is currently not used and is considered a waste. This tremendous resource could very well be used in applications such as food processing, food dehydration and other industrial processing that requires low-grade heat. One of the applications is examined, namely the drying of tropical fruits particularly the papaya. The papaya was chosen for the obvious reason that it is the biggest crop of all fruits produced on the Big Island. A conceptual design of a pilot plant facility capable of processing 1000 pounds of raw papaya per day is included. This facility is designed to provide a geothermally heated dryer to dehydrate papayas or other tropical fruits available on an experimental basis to obtain data such as drying time, optimum drying temperature, etc.

  14. Two 175 ton geothermal chiller heat pumps for leed platinum building

    Office of Scientific and Technical Information (OSTI)

    technology demonstration project. Operation data, data collection and marketing (Technical Report) | SciTech Connect Two 175 ton geothermal chiller heat pumps for leed platinum building technology demonstration project. Operation data, data collection and marketing Citation Details In-Document Search Title: Two 175 ton geothermal chiller heat pumps for leed platinum building technology demonstration project. Operation data, data collection and marketing The activities funded by this grant

  15. Characterizing U.S. Heat Demand for Potential Application of Geothermal

    Office of Scientific and Technical Information (OSTI)

    Direct Use: Preprint (Conference) | SciTech Connect Characterizing U.S. Heat Demand for Potential Application of Geothermal Direct Use: Preprint Citation Details In-Document Search Title: Characterizing U.S. Heat Demand for Potential Application of Geothermal Direct Use: Preprint In this paper, we assess the U.S. demand for low-temperature thermal energy at the county resolution for four major end-use sectors: residential buildings, commercial buildings, manufacturing facilities, and

  16. Geothermal direct-heat utilization assistance: Federal assistance program. Quarterly project progress report, October--December 1995

    SciTech Connect

    1996-02-01

    The 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-96. It describes 90 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 and resources. Research activities are summarized on low-temperature resource assessment, geothermal district heating system cost evaluation and silica waste utilization project. Outreach activities include the publication of a geothermal direct use Bulletin, dissemination of information, geothermal library, technical papers and seminars, development of a webpage, and progress monitor reports on geothermal resources and utilization.

  17. Metal Organic Heat Carriers for Enhanced Geothermal Systems

    Energy.gov [DOE]

    DOE Geothermal Program Peer Review 2010 - Presentation. This project addresses Energy Conversion Barrier N -Inability to lower the temperature conditions under which EGS power generation is commercially viable.

  18. What's Next for Geothermal Heat Energy? | GE Global Research

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

    Research Center, we enjoy the challenge to improve and diversify the energy technology mix. ... history and rural charm - but not geothermal resources suitable for power generation. ...

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

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

    cooling systems that are providing 30%-70% energy and cost savings for homeowners in Jordan, New York. Demand for these systems is growing; nationally, shipments of geothermal...

  20. Policy Makers' Guidebook for Geothermal Heating and Cooling ...

    OpenEI (Open Energy Information) [EERE & EIA]

    Hide Map This tool is an interactive guide to the Policymakers' Guidebook for Geothermal Electricity Generation. Overview This tool is an interactive guide to the Policymakers'...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    2 Geothermal Energy Production from Low Temperature Resources, Coproduced Fluids from Oil and Gas Wells, and Geopressured Resources Project Type Topic 3 Low Temperature...

  2. Enhanced Geothermal Systems (EGS) with CO2 as Heat Transmission...

    OpenEI (Open Energy Information) [EERE & EIA]

    Fluid Project Type Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type Topic 2 Supercritical...

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

    SciTech Connect

    Not Available

    1993-12-31

    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.

  4. A man-made enhanced geothermal system (EGS) can extract the abundant heat resour

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

    man-made enhanced geothermal system (EGS) can extract the abundant heat resource tens of thousands of feet below the surface and put it to good use. This would require: With an enhanced geothermal reservoir, you can generate power anywhere with hot rocks at depth! What makes EGS? + + Small pathways to conduct fluid through the hot rocks Fluid to carry heat from the rocks Abundant heat found in rocks at depth Abundant heat found in rocks at depth Limited pathways to conduct fluid Insufficient

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

    SciTech Connect

    Not Available

    1994-05-01

    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.

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

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

    Project at the University at Albanys Main Campus | Department of Energy Heat Pump System for the New 500-bed 200,000 SF Student Housing Project at the University at Albanys Main Campus Geothermal Heat Pump System for the New 500-bed 200,000 SF Student Housing Project at the University at Albanys Main Campus This project proposes to heat and cool planned 500-bed apartment-style student housing with closed loop vertical bore geothermal heat pump system installation.

  7. Geothermal heat pumps at Fort Polk: Early results

    SciTech Connect

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

    1996-12-31

    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.

  8. Geothermal Energy Basics | NREL

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

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

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

    SciTech Connect

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

    1983-05-01

    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.

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

    SciTech Connect

    1994-04-01

    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)

  11. Geothermal energy | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Geothermal energy Jump to: navigation, search Dictionary.png Geothermal energy: Geothermal energy is heat extracted from the Earth ( Geo (Earth) + thermal (heat) ) Other...

  12. Office of Renewable Energy Technology Geothermal and Hydropower Technologies Division, FY 1983 Annual Operating Plan

    SciTech Connect

    1983-01-01

    There are between 700 and 3400 guads of recoverable geothermal energy in the US. Hydrothermal, geopressure and hot dry rock are the three principal types of geothermal resources (in order of technological readiness) which can supply large amounts of energy for electric power production and direct heat applications. Hydrothermal resources include water and steam trapped in fractured or porous rocks. A hydrothermal system is classified as either hot-water or vapor-dominated (steam), according to the principal physical state of the fluid. Geopressured resources consist of water at moderately high temperatures at pressures higher than normal hydrostatic pressure. This water contains dissolved methane. Geopressured sources in sedimentary formations along the Texas and Louisiana Gulf Coast are believed to be quite large. Geopressured formations also exist in sedimentary basins elsewhere in the US. Hot dry rock resources consist of relatively unfractured and unusually hot rocks at accessible depths that contain little or no water. To extract usable power from hot dry rock, the rock must be fractured and a confined fluid circulation system created. A heat transfer fluid is introduced, circulated, and withdrawn. The overall goal of the Geothermal Program is to build a technology base that will be used by the private sector to exploit geothermal resources which can supply large amounts of energy for electric power production and direct-heat applications.

  13. NREL: Geothermal Technologies - News

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

    Geothermal News Below are news stories involving geothermal research. May 16, 2016 NREL Helping the Bureau of Land Management Dive Further into Hot Water Geothermal program boosted by greater access to data. March 10, 2016 NREL's Geothermal Experts Present at the 41st Annual Stanford Geothermal Workshop NREL geothermal experts attend the 41st Annual Stanford Geothermal Workshop--one of the world's longest-running technical meetings on the topic of geothermal energy. March 2, 2016 U.S. Bureau of

  14. Engineering design for geothermal commerical and industrial direct heat applications in Salida, Colorado

    SciTech Connect

    Zocholl, J.R.; Meyer, R.T.

    1981-10-01

    The Salida Geothermal Prospect (Poncha Hot Springs) is being evaluated for commercial and industrial direct heat applications in Salida, Colorado, located approximately five miles east. The prospective energy use includes domestic space heating and hot water, commercial space heating and hot water for motels, restaurants, greenhouses, and swimming pools, and industrial space and process heat requirements for existing and future facilities. The objective of the engineering design is to use the full flow capacity of the resource and to provide for the future development of the commercial and industrial sectors of Salida. The engineering evaluation has included significant design features, including cascaded uses of the hot water, conversion of chicken waste, warm water fish hatching, pipeline crossing of a river, and geothermal fluid cooling and discharge to the Arkansas River. Engineering feasibility of the geothermal well supply and of selected user facility retrofits has been demonstrated.

  15. Modeling of heat extraction from variably fractured porous media in Enhanced Geothermal Systems

    DOE PAGES [OSTI]

    Hadgu, Teklu; Kalinina, Elena Arkadievna; Lowry, Thomas Stephen

    2016-01-30

    Modeling of heat extraction in Enhanced Geothermal Systems is presented. The study builds on recent studies on the use of directional wells to improve heat transfer between doublet injection and production wells. The current study focuses on the influence of fracture orientation on production temperature in deep low permeability geothermal systems, and the effects of directional drilling and separation distance between boreholes on heat extraction. The modeling results indicate that fracture orientation with respect to the well-pair plane has significant influence on reservoir thermal drawdown. As a result, the vertical well doublet is impacted significantly more than the horizontal wellmore » doublet« less

  16. Geothermal

    Office of Scientific and Technical Information (OSTI)

    Geothermal Geothermal Legacy Collection Search the Geothermal Legacy Collection Search For Terms: Find + Advanced Search × Advanced Search All Fields: Title: Full Text: Bibliographic Data: Creator / Author: Name Name ORCID Search Authors Subject: Identifier Numbers: Research Org: Sponsoring Org: Publication Date: to Update Date: to Sort: Relevance (highest to lowest) Publication Date (newest first) Publication Date (oldest first) Legacy/Non-Legacy: All Legacy Non-Legacy Close Clear All Find

  17. Geothermal

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

    Geothermal Louise Vickery, General Manager, Renewable Futures at the Australian Renewable Energy Agency (ARENA). Permalink Gallery Australian Renewable-Energy Official Visits ...

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

    Office of Environmental Management (EM)

    The FOA also calls for the reduction of the levelized cost of electricity for new methods of geothermal energy production from 0.10 kWh to 0.06 kWh. Applicants must submit an ...

  19. Geothermal direct-heat utilization assistance. Quarterly progress report, January--March 1993

    SciTech Connect

    Lienau, P.

    1993-03-30

    CHC (Geo-Heated Center) staff provided assistance to 103 requests from 26 states, and from Canada, Egypt, Mexico, China, Poland and Greece. A breakdown of the requests according to application include: space and district heating (19), geothermal heat pumps (24), greenhouses (10), aquaculture (4), industrial (4), equipment (3), resources (27), electric power (2) and other (20). Progress is reported on: (1) evaluation of lineshaft turbine pump problems, (2) pilot fruit drier and (3) geothermal district heating marketing tools and equipment investigation. Four presentations and two tours were conducted during the quarter, GHC Quarterly Bulletin Vol. 14, No. 4 was prepared, 14 volumes were added to the library and information was disseminated to 45 requests. Progress reports are on: (1) GHP Teleconference 93, (2) California Energy Buys Glass Mountain Prospect from Unocal and Makes Deal for Newberry Caldera, (3) New Power Plant Planned, (4) Vale to Get Power Plant, (5) BPA Approves Geothermal Project, (6) Update: San Bernardino Reservoir Study, (7) Twenty-nine Palms Geothermal Resources, (8) Geo-Ag Heat Center, Lake County, and (9) Update: Geothermal Wells at Alturas.

  20. Designs for maximum utilization of district heating systems ...

    Office of Scientific and Technical Information (OSTI)

    AND UTILIZATION; DISTRICT HEATING; DESIGN; ECONOMIC ANALYSIS; GEOTHERMAL DISTRICT HEATING; COST; EFFICIENCY; SENSITIVITY; ECONOMICS; GEOTHERMAL HEATING; HEATING Geothermal ...

  1. Geothermal space heating for the Senior Citizens Center at Truth or Consequences, New Mexico. Final report

    SciTech Connect

    Mancini, T.R.; Chaturvedi, L.N.; Gebhard, T.G.

    1982-03-01

    A demonstration project to heat the Senior Citizens Center at Truth or Consequences, New Mexico with geothermal waters is described. There were three phases to the project: Phase I - design and permitting; Phase II - installation of the heating system and well drilling; and Phase III - operation of the system. All three phases went well and there was only one major problem encountered. This was that the well which was drilled to serve as the geothermal source was dry. This could not have been anticipated and there was, as a contingency plan, the option of using an existing sump in the Teen Center adjacent to the Senior Citizens Center as the geothermal source. The system was made operational in August of 1981 and has virtually supplied all of the heat to the Senior Citizens Center during this winter.

  2. Renewable Energy Technologies - Geothermal Energy

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

    Technologies Geothermal Energy Geothermal Energy Bruce Green, 303-275-3621, bruce_green@nrel.gov Geothermal Energy is Heat Geothermal Energy is Heat from the Earth. from the Earth. How Geothermal Energy is Used: *Electricity Generation *Direct Thermal Use *Geothermal Heat Pumps, also called Geoexchange Units or Ground-Coupled Heat Pumps. Courtesy of Geothermal Education Association Tectonic Plate Boundaries Tectonic Plate Boundaries Hottest Known Geothermal Hottest Known Geothermal Regions

  3. Generic Guide Specification for Geothermal Heat Pump Systems

    SciTech Connect

    Thomas, WKT

    2000-04-12

    The attached Geothermal (Ground-Source) Heat Pump (GHP) Guide Specifications have been developed by Oak Ridge National Laboratory (ORNL) with the intent to assist federal agency sites and engineers in the preparation of construction specifications for GHP projects. These specifications have been developed in the industry-standard Construction Specification Institute (CSI) format and cover several of the most popular members of the family of GHP systems. These guide specifications are applicable to projects whether the financing is with conventional appropriations, arranged by GHP specialty ESCOs under the U.S. Department of Energy's Technology-Specific GHP Super ESPCs, arranged by utilities under Utility Energy Service Contracts (UESCs) or arranged by generalist ESCOs under the various regional ESPCs. These specifications can provide several benefits to the end user that will help ensure successful GHP system installations. GHP guide specifications will help to streamline the specification development, review, and approval process because the architecture and engineering (AE) firm will be working from the familiar CSI format instead of developing the specifications from other sources. The guide specifications help to provide uniformity, standardization, and consistency in both the construction specifications and system installations across multiple federal sites. This standardization can provide future benefits to the federal sites in respect to both maintenance and operations. GHP guide specifications can help to ensure that the agency is getting its money's worth from the GHP system by preventing the use of marginal or inferior components and equipment. The agency and its AE do not have to start from scratch when developing specifications and can use the specification as a template and/or a checklist in developing both the design and the contract documents. The guide specifications can save project costs by reducing the engineering effort required during the

  4. NREL: Geothermal Technologies - NREL's Geothermal Experts Present at the

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

    41st Annual Stanford Geothermal Workshop NREL's Geothermal Experts Present at the 41st Annual Stanford Geothermal Workshop March 10, 2016 Six members of our geothermal community, accompanied by Bud Johnston, NREL's new geothermal laboratory program manager, attended the 41st Annual Stanford Geothermal Workshop--one of the world's longest-running technical meetings on the topic of geothermal energy. The Stanford Geothermal Workshop brings together engineers, scientists, and managers involved

  5. Lightning Dock Geothermal Area | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Review At Lightning Dock Geothermal Area (Rafferty, 1997) Geothermal Literature Review Fossil Fuel-fired Peak Heating for Geothermal Greenhouses Geothermal Literature Review At...

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

    SciTech Connect

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

    1988-08-01

    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.

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

    SciTech Connect

    1998-07-01

    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.

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

    SciTech Connect

    Mansure, A.J.

    2011-12-31

    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.

  9. Energy Department Addresses Largest Gathering of Geothermal Energy Stakeholders

    Energy.gov [DOE]

    U.S. Department of Energy investments are tapping a vast resource of clean, baseload energy from the earth's heat, according to Douglas Hollett, Program Manager for the Department's Geothermal Technologies Office. Hollett addressed over 1,000 this week at the annual conference of the Geothermal Resources Council (GRC) in Reno, Nevadathe industry's largest annual gathering of geothermal energy stakeholders in the nation.

  10. Making a Difference: Geothermal Heat Pumps | Department of Energy

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

    GHP is a highly efficient technology gaining wide acceptance for both residential and commercial buildings. GHPs are used for space heating and cooling, as well as water heating. ...

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

    SciTech Connect

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

    1998-11-01

    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.

  12. Geothermal Technologies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Geothermal Technologies Geothermal energy can be utilized for electricity or heating in more than one way....

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

    SciTech Connect

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

    1985-09-01

    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)

  14. Reservoir and injection technology: Geothermal reservoir engineering research at Stanford: Third annual report for the period October 1, 1986 through September 30, 1987: (Final report)

    SciTech Connect

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

    1988-02-01

    This paper discusses different aspects of geothermal reservoir engineering. General topics covered are: reinjection technology, reservoir technology, and heat extraction. (LSP)

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

    SciTech Connect

    1993-07-01

    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)

  16. Direct use of geothermal energy, Elko, Nevada district heating. Final report

    SciTech Connect

    Lattin, M.W.; Hoppe, R.D.

    1983-06-01

    In early 1978 the US Department of Energy, under its Project Opportunity Notice program, granted financial assistance for a project to demonstrate the direct use application of geothermal energy in Elko, Nevada. The project is to provide geothermal energy to three different types of users: a commercial office building, a commercial laundry and a hotel/casino complex, all located in downtown Elko. The project included assessment of the geothermal resource potential, resource exploration drilling, production well drilling, installation of an energy distribution system, spent fluid disposal facility, and connection of the end users buildings. The project was completed in November 1982 and the three end users were brought online in December 1982. Elko Heat Company has been providing continuous service since this time.

  17. Geothermal Energy: Clean Power from the Earth's Heat | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    from the Earth into the atmosphere is enormous-equivalent to ten times the annual energy consumption of the United States and more than that needed to power all nations of the...

  18. National Geothermal Summit

    Energy.gov [DOE]

    The Geothermal Energy Association (GEA) will be holding it’s fifth annual National Geothermal Summit on June 3-4 at the Grand Sierra Resort and Casino in Reno, NV. The National Geothermal Summit is...

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

    SciTech Connect

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

    1980-08-01

    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. GEOTHERMAL DISTRICT HEATING Dr. John W. Lund, PE Emeritus Director

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

    * Production wells * Injection wells * Peaking station 2. Transmissiondistribution system * Delivery of heat to consumers (water or steam) 3. Central pumping station, and ...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    The sites for ten heat flow boreholes were located primarily using the available seismic ground noise and electrical resistivity data. Difficulty was encountered in the drilling...

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

    Office of Scientific and Technical Information (OSTI)

    The evaluated performance metrics include energy efficiency of the heat pump equipment and the overall GSHP system, pumping performance, energy savings, carbon emission reductions, ...

  3. Increasing Confidence In Geothermal Heat Pump Design Methods...

    Office of Scientific and Technical Information (OSTI)

    ... rate in the ground heat exchangers, allowed us to determine the thermal properties of the soil formation being experienced by the operating GHP system. Outputs from the models ...

  4. Category:Geothermal Projects | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Each year different agencies report the upcoming geothermal developing projects. The Geothermal Energy Association (GEA) publishes their findings in their annual US Geothermal...

  5. Geothermal system saving money at fire station | Department of...

    Energy.gov [DOE] (indexed site)

    A geothermal heating and cooling system has enabled the substation to save taxpayers 15,000 annually when compared to a traditional system. The high temperature of the treatment...

  6. Marketing the Klamath Falls Geothermal District Heating system

    SciTech Connect

    Rafferty, K.

    1993-06-01

    The new marketing strategy for the Klamath Falls system has concentrated on offering the customer an attractive and easy to understand rate structure, reduced retrofit cost and complexity for his building along with an attractive package of financing and tax credits. Initial retrofit costs and life-cycle cost analysis have been conducted on 22 buildings to date. For some, the retrofit costs are simply too high for the conversion to make sense at current geothermal rates. For many, however, the prospects are good. At this writing, two new customers are now connected and operating with 5 to 8 more buildings committed to connect this construction season after line extensions are completed. This represents nearly a 60% increase in the number of buildings connected to the system and a 40% increase in system revenue.

  7. Colorado Geothermal Commercialization Program. Semi-annual report, January-June 1980

    SciTech Connect

    Healy, F.C.

    1980-07-01

    Progress is reported on the following: geothermal leasing, outreach activities, and updating resource information. (MHR)

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

    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.

  9. Low Temperature Direct Use District Heating Geothermal Facilities...

    OpenEI (Open Energy Information) [EERE & EIA]

    >

    Temperature: 79.0u00b0C, 174.0u00b0FnFlow: 4,000 gpm, 15,160 LminnAnnual Generation: 66.2 x109 Btuyrn

    ","title":"Boise City...

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

    Energy.gov [DOE] (indexed site)

    The heated water is then pumped back to the surface and the resulting steam is used to power a turbine to generate electricity. The water is cooled back into a liquid and injected ...

  11. Recovery Act-Funded Geothermal Heat Pump projects

    Energy.gov [DOE]

    The U.S. Department of Energy (DOE) was allocated funding from the American Recovery and Reinvestment Act to conduct research into ground source heat pump technologies and applications. Projects...

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

    SciTech Connect

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

    1998-03-01

    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.

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

    SciTech Connect

    Hughes, P.J.

    1998-11-06

    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.

  14. Geothermal Resource/Reservoir Investigations Based on Heat Flow and Thermal Gradient Data for the United States

    SciTech Connect

    D. D. Blackwell; K. W. Wisian; M. C. Richards; J. L. Steele

    2000-04-01

    Several activities related to geothermal resources in the western United States are described in this report. A database of geothermal site-specific thermal gradient and heat flow results from individual exploration wells in the western US has been assembled. Extensive temperature gradient and heat flow exploration data from the active exploration of the 1970's and 1980's were collected, compiled, and synthesized, emphasizing previously unavailable company data. Examples of the use and applications of the database are described. The database and results are available on the world wide web. In this report numerical models are used to establish basic qualitative relationships between structure, heat input, and permeability distribution, and the resulting geothermal system. A series of steady state, two-dimensional numerical models evaluate the effect of permeability and structural variations on an idealized, generic Basin and Range geothermal system and the results are described.

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

    SciTech Connect

    Eastman, Alan D.

    2014-07-24

    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.

  16. Reference book on geothermal direct use

    SciTech Connect

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

    1994-08-01

    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.

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

    DOEpatents

    Poppendiek, Heinz F.

    1982-01-01

    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.

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

    SciTech Connect

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

    1998-03-01

    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.

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

    SciTech Connect

    Cremer, G.M.

    1981-07-01

    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.

  20. Fort Bidwell Indian Community - Geothermal District Heating and Power Production

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

    DISTRICT HEATING STUDY JOHN R. VASS TRIBAL ADMINISTRATOR FORT BIDWELL INDIAN COMMUNITY NOVEMBER 2008 OUTLINE * Summary of Ft. Bidwell Tribe * Project Location * Objectives of Project * Project Participants * Outcome of Project * New Projects - Background Information - Technical Support * On-going Projects Status - Accomplishments - Lessons Learned - Upcoming Activities * Future Projects FORT BIDWELL PAIUTE TRIBE * 1865 established as a military outpost then in1934 dedicated as a Native American

  1. Method for evaluating the potential of geothermal energy in industrial process heat applications

    SciTech Connect

    Packer, M.B.; Mikic, B.B.; Meal, H.C., Guillamon-Duch, H.

    1980-05-01

    A method is presented for evaluating the technical and economic potential of geothermal energy for industrial process heat applications. The core of the method is a computer program which can be operated either as a design analysis tool to match energy supplies and demands, or as an economic analysis tool if a particular design for the facility has already been selected. Two examples are given to illustrate the functioning of the model and to demonstrate that results reached by use of the model closely parallel those that have been determined by more traditional techniques. Other features of interest in the model include: (1) use of decision analysis techniques as well as classical methods to deal with questions relating optimization; (2) a tax analysis of current regulations governing percentage depletion for geothermal deposits; and (3) development of simplified correlations for the thermodynamic properties of salt solutions in water.

  2. The direct application of geothermal energy to provide process heat in Guatemala

    SciTech Connect

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

    1987-09-01

    One part of an energy and resource development program in Central America is a geothermal process heat project in Guatemala. The feasibility of the direct heat application depends upon the production characteristics and reliability of the geothermal source. Other factors are the distance from the heat source, quantity of use, and capacity factor of the use facilities. Favorable conditions would be distances of under 5 km, heat requirements approximately equal to the well capacity, and high capacity factors (say 60% or higher) in the industrial plants. Depending upon the values of these factors, energy costs of less than $1.00/million Btus to greater than $5.00/million Btus have been estimated. This can be compared to about $5.00/million Btus for petroleum-based fuels in Guatemala in mid 1987. A survey was made of existing industries in the Amatitlan and Zunil geothermal areas. In both Amatitlan and Zunil the existing industries are spread out over an area too large to be called an optimum. The most promising situation for an industrial park development is at Amatitlan, except that proven production wells are not yet available. At Zunil, production wells exist, but a diverse nearby industrial base does not. However, both of these two areas are sufficiently promising to merit further development. Consequently, a demonstration project is underway aimed at the ultimate establishment of an agricultural processing center at Zunil. This center would have the capability to process agricultural products by dehydration, freezing, and cold storage. 2 refs., 4 figs., 2 tabs.

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

    SciTech Connect

    1997-10-01

    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.

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

    SciTech Connect

    Not Available

    1986-01-01

    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.

  5. Imperial County geothermal development. Quarterly report, April 1, 1980-June 30, 1981

    SciTech Connect

    Not Available

    1981-01-01

    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. Field inspections will cover the four new wells drilled by Magma at the Salton Sea in preparation for 28 MW power plant, the progress at Sperry at East Mesa, and the two on-line power plants in East Mesa and North Brawley. Evaluation of cooperative efforts will cover the Geothermal Subsidence Detection Network Resurvey, Master EIR for the Salton Sea and the Annual Imperial County Geothermal meeting. The status of Geothermal development throughout the County will cover existing proposed facilities. The summary of the Geothermal meeting (Appendix A) will also provide the status of several projects. Geothermal Planning addresses the EIR Notice of Exemption from CEQA, progress on the Master EIR for the Salton Sea, and the EIR for Phillips Petroleum for 6 exploratory wells in the Truckhaven area. Other Geothermal Activity addresses the Department of Energy Region IX meeting hosted by Imperial County, the Annual Imperial County Geothermal meeting, Class II-1 geothermal hazardous waste disposal siting study, and Imperial County Geothermal Direct Heat Study.

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

    SciTech Connect

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

    2009-10-06

    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.

  7. Elimination of Heat-Shielding for Geothermal Tools Operating Up To 300 Degress Celsius

    SciTech Connect

    HENFLING,JOSEPH A.; NORMANN,RANDY A.

    1999-10-07

    This report focuses Sandia National Laboratories' effort to create high-temperature logging tools for geothermal applications not requiring heat-shielding. Tool electronics can operate up to 300 C with a few limiting components operating to 250 C. Second generation electronics are needed to increase measurement accuracy and extend the operating range to 300 and then 350 C are identified. Custom development of high-temperature batteries and assembling techniques are touched on. Outcomes of this work are discussed and new directions for developing high-temperature industry are suggested.

  8. National Geothermal Data System Demo 01-28-14

    Energy.gov [DOE] (indexed site)

    Reservoir Geologic Units Geothermal Area Geothermal Metadata Compilation Geothermal Power Plant Facility Gravity Stations Heat Flow Heat Pump Facility Hydraulic Properties ...

  9. EERE Success Story—Geothermal Technology Breakthrough in Alaska: Harvesting Heat below Boiling Temperatures

    Energy.gov [DOE]

    The Energy Department is supporting geothermal exploration at lower temperatures, thanks to a technology breakthrough that allows geothermal energy to be produced at temperatures below the boiling...

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

    SciTech Connect

    1992-03-01

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

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

    SciTech Connect

    1990-04-01

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

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

    SciTech Connect

    1990-04-01

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

  13. Scale Resistant Heat Exchanger for Low Temperature Geothermal Binary Cycle Power Plant

    SciTech Connect

    Hays, Lance G.

    2014-11-18

    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 ºF. 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 ºF, 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 ºF 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

  14. Recovery act. Development of design and simulation tool for hybrid geothermal heat pump system

    SciTech Connect

    Wang, Shaojie; Ellis, Dan

    2014-05-29

    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.

  15. Thermal conductivity of cementitious grouts for geothermal heat pumps. Progress report FY 1997

    SciTech Connect

    Allan, M.L.

    1997-11-01

    Grout is used to seal the annulus between the borehole and heat exchanger loops in vertical geothermal (ground coupled, ground source, GeoExchange) heat pump systems. The grout provides a heat transfer medium between the heat exchanger and surrounding formation, controls groundwater movement and prevents contamination of water supply. Enhanced heat pump coefficient of performance (COP) and reduced up-front loop installation costs can be achieved through optimization of the grout thermal conductivity. The objective of the work reported was to characterize thermal conductivity and other pertinent properties of conventional and filled cementitious grouts. Cost analysis and calculations of the reduction in heat exchanger length that could be achieved with such grouts were performed by the University of Alabama. Two strategies to enhance the thermal conductivity of cementitious grouts were used simultaneously. The first of these was to incorporate high thermal conductivity filler in the grout formulations. Based on previous tests (Allan and Kavanaugh, in preparation), silica sand was selected as a suitable filler. The second strategy was to reduce the water content of the grout mix. By lowering the water/cement ratio, the porosity of the hardened grout is decreased. This results in higher thermal conductivity. Lowering the water/cement ratio also improves such properties as permeability, strength, and durability. The addition of a liquid superplasticizer (high range water reducer) to the grout mixes enabled reduction of water/cement ratio while retaining pumpability. Superplasticizers are commonly used in the concrete and grouting industry to improve rheological properties.

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

    SciTech Connect

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

    1998-10-01

    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.

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

    SciTech Connect

    Shonder, John A; Hughes, Patrick; Thornton, Jeff W.

    1998-01-01

    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.

  18. Estimated Maintenance Cost Savings from a Geothermal Heat Pump Energy Savings Performance Contract at Fort Polk, LA

    SciTech Connect

    Shonder, John A; Hughes, Patrick

    1997-06-01

    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. These retrofits were performed by an energy services company at no up-front cost to the Army. The company has also assumed responsibility for maintenance of all equipment installed. In return, it receives a percentage of the energy and maintenance savings realized by the Army. In developing the energy savings performance contract, the Army estimated its pre-retrofit maintenance costs from bids received on a request for proposals. In this paper, a more rigorous cost estimate is developed, based on a survey of maintenance records for the pre-retrofit HVAC equipment. The reliability of the equipment is also estimated using an actuarial method to determine the number of units requiring replacement each year and the effect of these replacements on annual maintenance costs.

  19. Estimated maintenance cost savings from a geothermal heat pump energy savings performance contract at Fort Polk, Louisiana

    SciTech Connect

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

    1997-12-31

    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. These retrofits were performed by an energy services company at no up-front cost to the Army. The company has also assumed responsibility for maintenance of all the equipment installed. In return, it receives a percentage of the energy and maintenance savings realized by the Army. In developing the energy savings performance contract, the Army estimated its pre-retrofit maintenance costs from bids received on a request for proposals. In this paper, a more rigorous cost estimate is developed, based on a survey of maintenance records for the pre-retrofit HVAC equipment. The reliability of the equipment is also estimated using an actuarial method to determine the number of units requiring replacement each year and the effect of these replacements on annual maintenance costs.

  20. Geothermal probabilistic cost study

    SciTech Connect

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

    1981-08-01

    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)

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

    SciTech Connect

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

    1990-01-01

    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.

  2. OIT geothermal system improvements

    SciTech Connect

    Lienau, P.J.

    1996-08-01

    Three geothermal wells drilled during the original campus construction vary from 396 m (1,300 ft) to 550 m (1,800 ft). These wells supply all of the heating and part of the cooling needs of the 11-building, 62,200 m{sup 2} (670,000 ft{sup 2}) campus. The combined capacity of the well pumps is 62 L/s(980 gpm) of 89{degrees}C (192{degrees}F) geothermal fluids. Swimming pool and domestic hot water heating impose a small but nearly constant year-round flow requirement. In addition to heating, a portion of the campus is also cooled using the geothermal resource. This is accomplished through the use of an absorption chiller. The chiller, which operates on the same principle as a gas refrigerator, requires a flow of 38 L/s (600 gpm) of geothermal fluid and produces 541 kW (154 tons) of cooling capacity (Rafferty, 1989). The annual operating costs for the system is about $35,000 including maintenance salary, equipment replacement and cost of pumping. This amounts to about $0.05 per square foot per year.

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

    SciTech Connect

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

    1981-06-01

    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.

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

    SciTech Connect

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

    1981-06-01

    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.

  5. Direct utilization of geothermal heat in cascade application to aquaculture and greenhouse systems at Navarro College. Final report, March 1, 1979-September 30, 1984

    SciTech Connect

    Smith, K.

    1984-09-01

    This final report documents the Navarro College geothermal use project, which is one of nineteen direct-use geothermal projects funded principally by DOE. The six-year project encompassed a broad range of technical, institutional, and economic activities including: resource and environmental assessment; well drilling and completion; system design, construction, and monitoring; economic analysis; and public awareness programs. Some of the project conclusions are that: (1) the 130/sup 0/F Central Texas geothermal resource can support additional geothermal development; (2) private sector economic incentives currently exist which encourage commercial development of this geothermal resource; (3) potential uses for this geothermal resource include water and space heating, aquacultural and agricultural heating uses, and fruit and vegetable dehydration; (4) high maintenance costs arising from the geofluids' scaling and corrosion characteristics can be avoided through proper analysis and design.

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

    SciTech Connect

    Mansure, A.J.

    2010-12-31

    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.

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

    SciTech Connect

    Varnado, S.G.

    1980-05-01

    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.

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

    SciTech Connect

    Kelsey, J.R.

    1985-08-01

    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.

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

    SciTech Connect

    Varnado, S.G.

    1980-11-01

    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.

  10. Geothermal Energy

    SciTech Connect

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

    1995-01-01

    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. Category:Geothermal Technologies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    out of 7 total. C Co-Produced Geothermal Systems E Enhanced Geothermal Systems (EGS) G Geothermal Direct Use G cont. GeothermalExploration Ground Source Heat Pumps H...

  12. American Geothermal Systems | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Systems Place: Austin, Texas Sector: Geothermal energy Product: Installer of geothermal heating and cooling technologies, also has a patented water to air heat pump system....

  13. A Roadmap for Strategic Development of Geothermal Exploration...

    Energy.gov [DOE] (indexed site)

    an EGS demonstration project. 2013 Annual Report -- Geothermal Technologies Office Geothermal Technologies Office Annual Report 2012 2013 Peer Review Opening Plenary Presentation...

  14. SMU Geothermal Conference 2011 - Geothermal Technologies Program

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

    eere.energy.gov Timothy Reinhardt Geothermal Technologies Program Office of Energy Efficiency and Renewable Energy U.S. Department of Energy timothy.reinhardt@ee.doe.gov Geothermal Technologies Program 2011 SMU Geothermal Conference Energy Efficiency & Renewable Energy eere.energy.gov * Program's past * Present status of ARRA projects * Program's near future Presentation Outline Energy Efficiency & Renewable Energy eere.energy.gov The Geothermal Technologies Program annual budget peaked

  15. Geopressured-geothermal well activities in Louisiana. Annual report, 1 January 1991--31 December 1991

    SciTech Connect

    John, C.J.

    1992-10-01

    Since September 1978, microseismic networks have operated continuously around US Department of Energy (DOE) geopressured-geothermal well sites to monitor any microearthquake activity in the well vicinity. Microseismic monitoring is necessary before flow testing at a well site to establish the level of local background seismicity. Once flow testing has begun, well development may affect ground elevations and/or may activate growth faults, which are characteristic of the coastal region of southern Louisiana and southeastern Texas where these geopressured-geothermal wells are located. The microseismic networks are designed to detest small-scale local earthquakes indicative of such fault activation. Even after flow testing has ceased, monitoring continues to assess any microearthquake activity delayed by the time dependence of stress migration within the earth. Current monitoring shows no microseismicity in the geopressured-geothermal prospect areas before, during, or after flow testing.

  16. 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 ...

  17. Australia's Geothermal Developments | Department of Energy

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

    Australia's Geothermal Developments Australia's Geothermal Developments Australia presentation at the 2012 Annual Peer Review Meeting. PDF icon gtp2012peerreviewaustralia.pdf More ...

  18. Geothermal Case Study Challenge

    Energy.gov [DOE]

    The Energy Department's Geothermal Technologies Office hosts an annual student competition in exploration research to engage students pursuing STEM careers and, ultimately, to aid in the next...

  19. Thermally conductive cementitious grouts for geothermal heat pumps. Progress report FY 1998

    SciTech Connect

    Allan, M.L.; Philippacopoulos, A.J.

    1998-11-01

    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. The developed thermally conductive grout consists of cement, water, a particular grade of silica sand, superplasticizer and a small amount of bentonite. While the primary function of the grout is to facilitate heat transfer between the U-loop and surrounding formation, it is also essential that the grout act as an effective borehole sealant. Two types of permeability (hydraulic conductivity) tests was conducted to evaluate the sealing performance of the cement-sand grout. Additional properties of the proposed grout that were investigated include bleeding, shrinkage, bond strength, freeze-thaw durability, compressive, flexural and tensile strengths, elastic modulus, Poisson`s ratio and ultrasonic pulse velocity.

  20. Numerical Modeling Of Basin And Range Geothermal Systems | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    for extensional geothermal systems that include structure, heat input, and permeability distribution have been established using numerical models. Extensional geothermal...

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

    SciTech Connect

    Chatterton, Mike

    2014-02-12

    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.

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

    SciTech Connect

    Not Available

    1993-11-01

    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.

  3. Agriculture, greenhouse, wetland and other beneficial uses of geothermal fluids and heat

    SciTech Connect

    Schmitt, R.C.

    1981-04-05

    The status for related beneficial uses including agriculture, greenhousing, and geothermal wetlands is presented. Data published for the geothermal fluids found in areas of China have been examined and compared with the geothermal fluids used in the agriculture evaluations in the United States. This comparison indicates that the geothermal fluids found in parts of China are similar to those used in the US agriculture experiments. Greenhousing is addressed largely from the standpoint of hardware systems and technology being employed or being proposed in the United States.

  4. Thermal studies in a geothermal area: Report I. Thermal studies at Roosevelt Hot Springs, Utah; Report II. Heat flow above an arbitrarily dipping plane of heat sources; and Report III. A datum correction for heat flow measurements made on an arbitrary surface

    SciTech Connect

    Wilson, W.R.; Chapman, D.S.

    1980-10-01

    Separate abstracts were prepared for the three reports included in this volume on the interpretation of heat flow data in a geothermal area. (MHR)

  5. Planned Geothermal Capacity | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Map of Development Projects Planned Geothermal Capacity in the U.S. is reported by the Geothermal Energy Association via their Annual U.S. Geothermal Power Production and...

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

    SciTech Connect

    Shonder, John A; Hughes, Patrick

    1997-06-01

    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.

  7. Geothermal Heat Pump System for New Student Housing Project at the University at Albany Main Campus

    SciTech Connect

    Lnu, Indumathi

    2015-08-27

    University at Albany successfully designed, constructed and is operating a new student housing building that utilizes ground source heat pump (GSHP) for heating and cooling the entire 191,500SF building. The installed system consists of a well field with 150 bores, 450 feet deep and (189) terminal heat pump units for a total capacity of 358 Tons cooling and 4,300 MBtu/h heating. The building opened in Fall 2012. The annual energy use and cost intensity of the building, after the changes made during the first 2 years’ of operation is 57kBtu/SF/Year and $1.30/SF/Year respectively. This is approximately 50% lower than the other residential quads on campus, despite the fact that the quads are not air-conditioned. The total project cost from design through 3-years of operations is approximately $6 Million, out of which $5.7 Million is for construction of the GSHP system including the well field. The University received a $2.78 Million grant from the Department of Energy. The estimated utility cost savings, compared to a baseline building with conventional HVAC system, is approximately $185,000. The estimated simple payback, after grant incentives, is 15 years. Additionally, the project has created 8.5FTE equivalent jobs.

  8. Geothermal Power and Interconnection: The Economics of Getting to Market

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

    Geothermal Heat Pumps Geothermal Heat Pumps Two commercial 36-ton geothermal heat pumps being used at the College of Southern Idaho. The Geothermal Technologies Office focuses only on electricity generation. For additional information about geothermal heating and cooling and ground source heat pumps, please visit the U.S. Department of Energy (DOE)'s Buildings Technologies Office. The geothermal heat pump, also known as the ground source heat pump, is a highly efficient renewable energy

  9. Heat flow and geothermal gradients of Irian Jaya-Papua New Guinea: Implications for regional hydrocarbon exploration

    SciTech Connect

    Bettis, P.K. ); Pigott, J.D. )

    1990-06-01

    Compilation of published and unpublished bottom hole temperatures (corrected for circulation times) obtained from open files and reports of the Indonesian Petroleum Association, Papua Geologic Survey, and the Southeast Asia Petroleum Society, together with published oceanographic heat flow analyses from the surrounding seas, allow an analysis of the regional heat flow and geothermal gradients of New Guinea. In two dimensions the thermal trends may be described as a pervasive west-northwest striking Cordilleran core of cool (<1 HFU-<2{degree}C/ 100 m) strata surrounded by warm to hotter regions (>2 HFU->4{degree}C/100 m) on the northwest, northeast, east, and southwest. As a first approximation, the heat flow may be viewed as directly proportional to the crustal thickness (as demonstrated from north-south transects across the Central Cordillera), inversely proportional to the age of the ocean crust (offshore), and perturbed by crustal heterogeneities proximal to plate boundaries (e.g., the Northern New Guinea Fault System). As a result, the heat flow distribution affords a record of post-Cretaceous tectonic activities of New Guinea. Using the spatial distribution of geothermal gradients and specific source rock ages, kinetic calculations of hydrocarbon maturities confirmed by recent drilling results suggest thermal variations through space and time that cannot be modeled simply as a function of present day static temperatures. Therefore, in terms of utilizing the present thermal information, hydrocarbon basin exploration strategies must also take into account the tectonically perturbed heat flow history of the region.

  10. Heat Transfer and Fluid Transport of Supercritical CO2 in Enhanced Geothermal System with Local Thermal Non-equilibrium Model

    DOE PAGES [OSTI]

    Zhang, Le; Luo, Feng; Xu, Ruina; Jiang, Peixue; Liu, Huihai

    2014-12-31

    The heat transfer and fluid transport of supercritical CO2 in enhanced geothermal system (EGS) is studied numerically with local thermal non-equilibrium model, which accounts for the temperature difference between solid matrix and fluid components in porous media and uses two energy equations to describe heat transfer in the solid matrix and in the fluid, respectively. As compared with the previous results of our research group, the effect of local thermal non-equilibrium mainly depends on the volumetric heat transfer coefficient ah, which has a significant effect on the production temperature at reservoir outlet and thermal breakthrough time. The uniformity of volumetricmore » heat transfer coefficient ah has little influence on the thermal breakthrough time, but the temperature difference become more obvious with time after thermal breakthrough with this simulation model. The thermal breakthrough time reduces and the effect of local thermal non-equilibrium becomes significant with decreasing ah.« less

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

    SciTech Connect

    Shonder, J.A.; Hughes, P.J.; Gordon, R.; Giffin, T.

    1997-08-01

    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.

  12. Geothermal Heat Pump Energy Savings Performance Contract at Fort Polk, LA: Lessons Learned

    SciTech Connect

    Hughes, Patrick; Shonder, John A; Gordon, Richard; Giffin, Tom

    1997-06-01

    At Fort Polk, Louisiana, the space-conditioning systems of 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 fluorecent lights, low-flow shower heads, and attic insulation, were installed. An independent evaluation of the Fort Polk energy savings performance contract 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 about 6,761 kW, which is 40.2% of the pre-retrofit peak demand. Natural gas savings are about 260,000 therms per year. In addition, the energy savings performance contract 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 performance contract can provide a model for other contracts in both the public and private sectors. The purpose of this paper is to outline the method by which the contract was engineed and implemented, both from the standpoint of the facility owner (the U.S. Army) and the energy services company that is carrying out the contract. The lessons learned from this experience should be useful to other owners, service companies, and investors in the implementation of future service contracts. It should be noted that the energy savings presented in this document are the 'apparent' energy savings observed in the monitored data and not to be mistaken for the 'contract' 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 the indoor temperature performance criteria, additions of ceiling fans, and other factors.

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

    SciTech Connect

    Not Available

    1983-08-01

    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).

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

    SciTech Connect

    Not Available

    1983-08-01

    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).

  15. Rural Cooperative Geothermal Development Electric & Agriculture...

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

    More Documents & Publications Southwest Alaska Regional Geothermal Energy Project District Wide Geothermal Heating Conversion Blaine County School District Novel Energy Conversion ...

  16. Sedimentary Geothermal Systems | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Heat Pumps Sedimentary Geothermal Links Related documents and websites Estimate of the Geothermal Energy Resource in the Major Sedimentary Basins in the United States...

  17. Residential Geothermal Systems Credit | Department of Energy

    Energy.gov [DOE] (indexed site)

    Residential Low Income Residential Savings Category Geothermal Heat Pumps Geothermal Direct-Use Maximum Rebate 1,500 Program Info Sector Name State Administrator Montana...

  18. Geothermal Properties Measurement Tool | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Measurement tool was developed at Oak Ridge National Laboratory for geothermal heat pump (GHP) designers and installers to better determine the geothermal properties of a...

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

    SciTech Connect

    Goad, R.R.

    1981-01-01

    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.

  20. NREL Geothermal Policymakers' Guidebooks Web site (Fact Sheet)

    SciTech Connect

    Not Available

    2010-10-01

    This document highlights the NREL Geothermal Policymakers' Guidebooks Web site, including the five steps to effective geothermal policy development for geothermal electricity generation and geothermal heating and cooling technologies.

  1. Purchase and Installation of a Geothermal Power Plant to Generate...

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

    feasibility of the use of an existing low-temperature geothermal resource for combined heat and power; and Maintain and enhance existing geothermal district heating operation. ...

  2. South Dakota geothermal handbook

    SciTech Connect

    Not Available

    1980-06-01

    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)

  3. Energy Department Forecasts Geothermal Achievements in 2015 | Department of

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

    Energy Forecasts Geothermal Achievements in 2015 Energy Department Forecasts Geothermal Achievements in 2015 The 40th annual Stanford Geothermal Workshop in January featured speakers in the geothermal sector, including Jay Nathwani, Acting Director of the Energy Department's Geothermal Technologies Office. Nathwani shared achievements and challenges in the program's technical portfolio. The 40th annual Stanford Geothermal Workshop in January featured speakers in the geothermal sector,

  4. Geothermal Energy News | Department of Energy

    Energy.gov [DOE] (indexed site)

    RSS February 7, 2014 The Energy Department's Geothermal Technologies Office Releases 2013 Annual Report The 2013 Annual Report: featuring highlights and accomplishments in the...

  5. SMU Geothermal Conference 2011 - Geothermal Technologies Program...

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

    SMU Geothermal Conference 2011 - Geothermal Technologies Program SMU Geothermal Conference 2011 - Geothermal Technologies Program DOE Geothermal Technologies Program presentation ...

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

    OpenEI (Open Energy Information) [EERE & EIA]

    Heating Low Temperature Geothermal Facility Facility Wiesbaden Motel & Health Resort Sector Geothermal energy Type Space Heating Location Ouray, Colorado Coordinates...

  7. Deep Production Well for Geothermal Direct-Use Heating of A Large Commercial Greenhouse, Radium Springs, Rio Grande Rift, New Mexico

    SciTech Connect

    James C. Witcher

    2002-01-02

    Expansion of a large commercial geothermally-heated greenhouse is underway and requires additional geothermal fluid production. This report discusses the results of a cost-shared U.S. Department of Energy (DOE) and A.R. Masson, Inc. drilling project designed to construct a highly productive geothermal production well for expansion of the large commercial greenhouse at Radium Springs. The well should eliminate the potential for future thermal breakthrough from existing injection wells and the inducement of inflow from shallow cold water aquifers by geothermal production drawdown in the shallow reservoir. An 800 feet deep production well, Masson 36, was drilled on a US Bureau of Land Management (BLM) Geothermal Lease NM-3479 at Radium Springs adjacent to the A. R. Masson Radium Springs Farm commercial greenhouse 15 miles north of Las Cruces in Dona Ana County, New Mexico just west of Interstate 25 near the east bank of the Rio Grande. The area is in the Rio Grande rift, a tectonically-active region with high heat flow, and is one of the major geothermal provinces in the western United State.

  8. Geothermal Technology Basics | Department of Energy

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

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

  9. Geothermal direct-heat utilization assistance. Federal Assistance Program: Quarterly project progress report, October--December 1992

    SciTech Connect

    Not Available

    1992-12-31

    Progress on technical assistance, R&D activities, technology transfer, and geothermal progress monitoring is summarized.

  10. Heating the New Mexico Tech Campus with geothermal energy. Final report, July 1, 1978-October 31, 1979

    SciTech Connect

    LeFebre, V.; Miller, A.

    1980-01-01

    An area between the base of Socorro Peak and the New Mexico Tech Campus (located in central New Mexico) has been proposed as a site for geothermal exploratory drilling. The existing site environment is summarized, a program for site monitoring is proposed, impacts of geothermal production and reinjection are listed, and problems associated with geothermal development are examined. The most critical environmental impact is the increased seismic activity that may be associated with geothermal fluid migration resulting from geothermal production and reinjection.

  11. Susanville District Heating District Heating Low Temperature...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  12. NREL: Learning - Geothermal Energy Basics

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

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

  13. 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

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

    1980-10-01

    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.

  14. Geothermal Energy Retrofit

    SciTech Connect

    Bachman, Gary

    2015-07-28

    The Cleary University Geothermal Energy Retrofit project involved: 1. A thermal conductivity test; 2. Assessment of alternative horizontal and vertical ground heat exchanger options; 3. System design; 4. Asphalt was stripped from adjacent parking areas and a vertical geothermal ground heat exchanger system installed; 5. the ground heat exchanger was connected to building; 6. a system including 18 heat pumps, control systems, a manifold and pumps, piping for fluid transfer and ductwork for conditioned air were installed throughout the building.

  15. NREL GHP [Geothermal Heat Pump] Showcase: GHP Installation and Intensive in situ and Performance Monitoring at NREL's Solar Radiation and Research Laboratory; Preprint

    SciTech Connect

    Anderson, E. R.

    2010-07-01

    This document provides an overview of the geothermal heat pump (GHP) showcase at NREL and how it will help the SRRL site move forward with the goal of being a model of sustainability within the NREL campus, providing an effective demonstration of GHP systems and needed space conditioning for laboratory expansion.

  16. Overview of direct use R&D at the Geo-Heat Center

    SciTech Connect

    Lienau, P.J.

    1997-12-31

    Geo-Heat Center research, during the past year, on geothermal district heating and greenhouse projects is intended to improve the design and cost effectiveness of these systems. The largest geothermal district heating system in the U.S., proposed at Reno, is describe and is one of 271 collocated sites in western states could benefit from the research. The geothermal district heating research investigated a variety of factors that could reduce development cost for residential areas. Many greenhouse operators prefer the {open_quotes}bare tube{close_quotes} type heating system. As facilities using these types of heating systems expand they could benefit from peaking with fossil fuels. It is possible to design a geothermal heating system for only 60% of the peak heat loss of a greenhouse and still meet over 90% of the annual heat energy needs of the structure. The design and cost effectiveness of this novel approach is summarized.

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

    SciTech Connect

    Clark, Thomas M.; Erlach, Celeste

    2014-12-30

    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.

  18. Geothermal Technologies Program GRC Presentation, 10/1/2012 | Department of

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

    Energy GRC Presentation, 10/1/2012 Geothermal Technologies Program GRC Presentation, 10/1/2012 Doug Hollett's presentation at the Geothermal Resources Council (GRC) Annual Meeting on October 1, 2012 in Reno, Nevada. geothermal_grc_hollett_10-1-2012.pdf (1.76 MB) More Documents & Publications Stanford Geothermal Workshop - Geothermal Technologies Office Stanford Geothermal Workshop 2012 Annual Meeting Iceland Geothermal Conference 2013 - Geothermal Policies and Impacts in the U.S.

  19. Geothermal direct heat use: market potential/penetration analysis for Federal Region IX (Arizona, California, Hawaii, Nevada)

    SciTech Connect

    Powell, W.; Tang, K.

    1980-05-01

    A preliminary study was made of the potential for geothermal direct heat use in Arizona, California, Hawaii, and Nevada (Federal Region IX). The analysis for each state was performed by a different team, located in that state. For each state, the study team was asked to: (1) define the resource, based on the latest available data; (2) assess the potential market growth for geothermal energy; and (3) estimate the market penetration, projected to 2020. Each of the four states of interest in this study is unique in its own way. Rather than impose the same assumptions as to growth rates, capture rates, etc. on all of the study teams, each team was asked to use the most appropriate set of assumptions for its state. The results, therefore, should reflect the currently accepted views within each state. The four state reports comprise the main portion of this document. A brief regional overview section was prepared by the Jet Propulsion Laboratory, following completion of the state reports.

  20. Geothermal resources of Montana

    SciTech Connect

    Metesh, J.

    1994-06-01

    The Montana Bureau of Mines and Geology has updated its inventory of low and moderate temperature resources for the state and has assisted the Oregon Institute of Technology - GeoHeat Center and the University of Utah Research Institute in prioritizing and collocating important geothermal resource areas. The database compiled for this assessment contains information on location, flow, water chemistry, and estimated reservoir temperatures for 267 geothermal well and springs in Montana. For this assessment, the minimum temperature for low-temperature resource is defined as 10{degree} C above the mean annual air temperature at the surface. The maximum temperature for a moderate-temperature resource is defined as greater than 50{degree} C. Approximately 12% of the wells and springs in the database have temperatures above 50{degree} C, 17% are between 30{degree} and 50{degree} C, 29% are between 20{degree} and 30{degree}C, and 42% are between 10{degree} and 20{degree} C. Low and moderate temperature wells and springs can be found in nearly all areas of Montana, but most are in the western third of the state. Information sources for the current database include the MBMG Ground Water Information Center, the USGS statewide database, the USGS GEOTHERM database, and new information collected as part of this program. Five areas of Montana were identified for consideration in future investigations of geothermal development. The areas identified are those near Bozeman, Ennis, Butte, Boulder, and Camas Prairie. These areas were chosen based on the potential of the resource and its proximity to population centers.

  1. Geothermal Regulatory Roadmap | Department of Energy

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

    Regulatory Roadmap Geothermal Regulatory Roadmap Geothermal Regulatory Roadmap presentation at the April 2013 peer review meeting held in Denver, Colorado. grr_peer2013.pdf (1.04 MB) More Documents & Publications track 1: systems analysis | geothermal 2015 peer review Geothermal Technologies Program Annual Peer Review Presentation By Doug Hollett Validation of Innovation Exploration Technologies for Newberry Volcano

  2. Geothermal Prospects in Colorado | Department of Energy

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

    Prospects in Colorado Geothermal Prospects in Colorado Geothermal Prospects in Colorado presentation at the April 2013 peer review meeting held in Denver, Colorado. garrett_peer2013.pdf (2 MB) More Documents & Publications Geothermal Prospects in Colorado Stanford Geothermal Workshop 2012 Annual Meeting Fiscal Year 2013 Budget Request Briefing

  3. Geothermal Research Department Presentation

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

    page 1 Geothermal Research April 8, 2008 Geothermal Research Department Sandia National Laboratories Geothermal Energy Overview Ref: Tapping the Earth's Natural Heat, USGS Circular 1125, 1997. Moderate Vapor-dominated temperature binary hydrothermal system system Geysers, Santa Rosa, CA page 2 Geothermal Energy Installed Capacity 60 MWt 2500 MWe 114 MWt 28 MWt 30 MWt 54 MWt 40 MWe 51 MWt 200 MWe 69 MWt 102 MWt 22 MWt 30 MWe Installed: Over 2800 MW (electric) Over 500 MW (heat) Greater Than 20 MW

  4. Hot Dry Rock Geothermal Energy Development Program. Annual report, fiscal year 1983

    SciTech Connect

    Smith, M.C.; Nunz, G.J.; Wilson, M.G.

    1985-02-01

    Emphasis was on hydraulic-fracturing experiments at depths around 3.5 km (11,473 ft) in the two inclined wells of the Phase II system at Fenton Hill, New Mexico; on improved facilities and techniques for mapping the source locations of acoustic signals generated by the fracturing events; on mathematical modeling of the fracture systems produced in these and earlier experiments; and on development of a family of slimline high-temperature downhole instruments that can be used within or through relatively small-diameter pressure tubing. Hydraulic fracturing at a vertical depth of approximately 3500 m (11,500 ft) in well EE-2, the deeper well, produced fractures that, in acoustic maps, appear to occupy a large, roughly ellipsoidal volume whose major axis is directed to the north of the other well, EE-3. Hydraulic fracturing from EE-3 at a similar depth produced another set of fractures that appear to be approximately parallel to and centered about 180 m (600 ft) east of the earlier set. Subsequent fluid injections reduced the distance between the two sets, but no hydraulic connection between them was established. Modeling the silica concentrations of fluid circulated through the earlier Phase I system indicates that this type of permeation also contributes significantly to heat extraction during system operation. The precision and accuracy of locating the sources of acoustic signals detected during hydraulic-fracturing operations have been increased by improvements in equipment, drilling of another deep hole for geophone emplacement, and additional station calibrations. Analysis of the signals has also been improved and broadened. Development of slimline downhole instruments has included a detonator tool, a geophone package, and final design of a high-temperature borehole acoustic televiewer. A crosswell acoustic transceiver has also been developed for investigating rock type and structure between wellbores. 32 refs., 35 figs.

  5. National Geothermal Academy. Geo-Heat Center Quarterly Bulletin, Vol. 31 No. 2 (Complete Bulletin). A Quarterly Progress and Development Report on the Direct Utilization of Geothermal Resources

    SciTech Connect

    Boyd, Tonya; Maddi, Phillip

    2012-08-01

    The National Geothermal Academy (NGA) is an intensive 8-week overview of the different aspects involved in developing a geothermal project, hosted at University of Nevada, Reno. The class of 2012 was the second graduating class from the academy and included 21 students from nine states, as well as Saudi Arabia, Dominica, India, Trinidad, Mexico. The class consisted of people from a wide range of scholastic abilities from students pursuing a Bachelor’s or Master’s degrees, to entrepreneurs and professionals looking to improve their knowledge in the geothermal field. Students earned 6 credits, either undergraduate or graduate, in engineering or geology. Overall, the students of the NGA, although having diverse backgrounds in engineering, geology, finance, and other sciences, came together with a common passion to learn more about geothermal.

  6. Energy 101: Geothermal Energy | Department of Energy

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

    Geothermal Energy Energy 101: Geothermal Energy Addthis Description 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. Topic Geothermal Text Version Below is the text version for the Energy 101: Geothermal Energy video. The words "Energy 101: Geothermal Energy"

  7. Enhanced Geothermal System Basics | Department of Energy

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

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

  8. Geothermal Resource Basics | Department of Energy

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

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

  9. Use of geothermal heat for sugar refining in Imperial County. Pilot Plant Implementation

    SciTech Connect

    Not Available

    1984-09-01

    This report summarizes activities carried out during phase two of a program aimed at replacing fossil fuels with geothermal energy for the processing of sugar beets. Drilling of an exploratory production well was carried out. The well reached a total depth of about 10,000 feet. Static hole bottom temperatures as high as 393/sup 0/F were calculated. However, the well did not produce a free flow of more than 2-3 barrels of brine per hour. Attempts were made to stimulate the well by gas lift and circulation. These procedures were unsuccessful in promoting flow, and the well was shut in. 2 refs., 7 figs., 2 tabs.

  10. Sustainable Energy Resources for Consumers (SERC) -Geothermal...

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

    This presentation, aimed at Sustainable Energy Resources for Consumers (SERC) grantees, ... DOE Webinar Residential Geothermal Heat Pump Retrofits (Presentation) Sustainable ...

  11. Stanford Geothermal Workshop - Geothermal Technologies Office...

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

    - Geothermal Technologies Office Stanford Geothermal Workshop - Geothermal Technologies Office Presentation by Geothermal Technologies Director Doug Hollett at the Stanford ...

  12. Geothermal Today - 2001

    SciTech Connect

    2001-08-01

    U.S. Department of Energy Geothermal Energy Program Highlights Partnering with Industry A New Power Source for Nevada Drilling Research Finding Geothermal Resources Small-Scale Geothermal Power Plants The Heat Beneath Your Feet R&D 100 Award Program in Review Milestones January 2000 The U.S. Department of Energy GeoPowering the West initiative was launched. February 2000 Grants totaling $4.8 million were awarded in six western states, primarily for development of reservoir exploration, character

  13. Geothermal | Department of Energy

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

    Geothermal Geothermal See how we can generate clean, renewable energy from hot water sources deep beneath the Earth's surface. Geothermal energy is heat derived below the earth's surface which can be harnessed to generate clean, renewable energy. This vital, clean energy resource supplies renewable power around the clock and emits little or no greenhouse gases -- all while requiring a small environmental footprint to develop. The Energy Department is committed to responsibly developing,

  14. Evidence for a Crustal Heat Source for Low-Temperature Geothermal...

    OpenEI (Open Energy Information) [EERE & EIA]

    is anomalously high due to significant concentrations ofradioactive elements U, Th and K. High heat production in granitesmay be responsiblehfor local elevation of the...

  15. Geothermal Energy Association Honors Two NRELians with Top Recognition...

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

    association that supports the expanded use of geothermal energy and the development of geothermal resources worldwide for electrical power generation and direct-heat uses. More...

  16. Chapter 4: Advancing Clean Electric Power Technologies | Geothermal...

    Energy.gov [DOE] (indexed site)

    Assessments Introduction Geothermal power taps into earth's internal heat as an energy source. While geothermal currently constitutes less than 1% of total U.S....

  17. 2008 Geothermal Technologies Market Report | Department of Energy

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

    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 ...

  18. First Google.Org-Funded Geothermal Mapping Report Confirms Vast...

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

    ... Addthis Related Articles Geothermal, the 'undervalued' renewable resource, sees surging interest Mapping Geothermal Heat Flow and Existing Plants DOE Awards 20 Million to Develop ...

  19. Geothermal Analysis | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Measuring the Costs and Economic, Social, and Environmental Benefits of Nationwide Geothermal Heat Pump Deployment And The Potential Employment, Energy, and Environmental...

  20. Enhanced Geothermal Systems Subprogram Overview

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

    Ground Source Heat Pumps, 61.9 Geothermal Data, Development, Collection and Maintenance, ... Composite Technology Development The Regents of the University of CA Draka Cableteq USA, ...

  1. Geothermal Energy (5 Activities)

    Education - Teach & Learn

    Geothermal energy is one of the components of the National Energy Policy: “Reliable, Affordable, and Environmentally Sound Energy for America’s Future.” This lesson includes five activities that will give your students information on the principles of heat transfer and the technology of using geothermal energy to generate electricity.

  2. The Heat Output of the Waimangu, Waiotapu-Waikite and Reporoa Geothermal Systems (NZ): Do Chloride Fluxes Provide an Accurate Measure?

    SciTech Connect

    Bibby, H.M.; Glover, R.B.; Whiteford, P.C.

    1995-01-01

    Geothermal waters from the Waimangu, Waiotapu-Waikite and Reporoa geothermal systems find their way into three separate watersheds. The heat flow data from each of these drainage areas have been assessed making it possible to compare the heat outputs from two independent methods: direct heat measurements and the chloride flux method. For both the Waiotapu/Reporoa Valley drainage and the Waikite drainage a discrepancy exists between the two assessments, with the heat output observed at the surface (Waiotapu-540 {+-} 110 MW; Waikite-80 MW) nearly double of that calculated from the chloride flux (300 MW; 36 MW respectively). It appears that much of the throughput of chloride does not reach the surface within the area which was monitored and the basic assumption on which the method is based has been violated. For Waimangu the direct heat output is assessed as 510 {+-} 60 MW. However the ratio of enthalpy to chloride concentration of the source fluid is not well determined. Depending on the ratio chosen the heat output could lie between 360 and 800 MW. Although the chloride flux is accurately known, the heat output cannot be measured accurately without well determined data on the source fluid at depth.

  3. Purchase and Installation of a Geothermal Power Plant to Generate Electricity Using Geothermal Water Resources

    Office of Energy Efficiency and Renewable Energy (EERE)

    Project objectives: Demonstrate technical and financial feasibility of the use of an existing low-temperature geothermal resource for combined heat and power; and Maintain and enhance existing geothermal district heating operation.

  4. Iceland Geothermal Conference 2013 - Geothermal Policies and...

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

    Iceland Geothermal Conference 2013 - Geothermal Policies and Impacts in the U.S. Iceland Geothermal Conference 2013 - Geothermal Policies and Impacts in the U.S. Iceland Geothermal ...

  5. Geothermal International Ltd | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Ltd Place: Coventry, United Kingdom Zip: CV5 6ND Product: Coventry-based, provider of ground source heat pumps for heating and cooling. References: Geothermal International...

  6. Property:Geothermal/DOEFundingLevel | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Geothermal Exploration Geothermal Project + 4,040,375 + B BSU GHP District Heating and Cooling System (PHASE I) Geothermal Project + 5,000,000 + Base Technologies and Tools for...

  7. Iowa: Geothermal System Creates Jobs, Reduces Emissions in Rural...

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

    geothermal wells in order to install a closed-loop geothermal heating and cooling system. ... The district geothermal system is designed to be scalable, so that more buildings can be ...

  8. Preliminary conceptual design for geothermal space heating conversion of school district 50 joint facilities at Pagosa Springs, Colorado. GTA Report No. 6

    SciTech Connect

    Engen, I.A.

    1981-11-01

    This feasibility study and preliminary conceptual design effort assesses the conversion of Colorado School District 50 facilities - a high school and gym, and a middle school building - at Pagosa Springs, Colorado to geothermal space heating. A preliminary cost-benefit assessment made on the basis of estimated costs for conversion, system maintenance, debt service, resource development, electricity to power pumps, and savings from reduced natural gas consumption concluded that an economic conversion depended on development of an adequate geothermal resource (approximately 150/sup 0/F, 400 gpm). Material selection assumed that the geothermal water to the main supply system was isolated to minimize effects of corrosion and deposition, and that system-compatible components would be used for the building modifications. Asbestos-cement distribution pipe, a stainless steel heat exchanger, and stainless steel lined valves were recommended for the supply, heat transfer, and disposal mechanisms, respectively. A comparison of the calculated average gas consumption cost, escalated at 10% per year, with conversion project cost, both in 1977 dollars, showed that the project could be amortized over less than 20 years at current interest rates. In view of the favorable economics and the uncertain future availability and escalating cost of natural gas, the conversion appears economicaly feasible and desirable.

  9. Geothermal Energy: Current abstracts

    SciTech Connect

    Ringe, A.C.

    1988-02-01

    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)

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

    SciTech Connect

    Not Available

    1984-12-01

    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.

  11. Mise-A-La-Masse Mapping of the HGP-A Geothermal Reservoir, Hawaii...

    OpenEI (Open Energy Information) [EERE & EIA]

    confine geothermal fluids at depth. Authors James Kauahikaua, Mark Mattice and Dallas Jackson Conference GRC Annual Meeting; unknown; 19800901 Published Geothermal Resources...

  12. Technical support for geopressured-geothermal well activities in Louisiana: Annual report for the period 1 November 1984 to 31 December 1986

    SciTech Connect

    Groat, C.G.

    1987-09-01

    This report describes environmental monitoring activities carried out by Louisiana State University (LSU) under US Department of Energy Contract FC07-85NV10425 for the period 1 November 1984 through 31 December 1986. Other aspects of the LSU technical support program completed under prior contracts were covered in final form in reports preceding this one. During the contract period, the Louisiana Geological Survey, aided by subcontractors, monitored microseismic activity, land-surface subsidence, and surface and ground-water quality at three designed geopressured-geothermal test well sites in Louisiana and Texas. Don Stevenson supervised microseismic monitoring activities, and Drukell Trahan coordinated water quality and land-surface subsidence studies. This is a progress report in the sense that it discusses program components, provides raw data, and presents preliminary interpretations. The environmental monitoring program continues and will be the subject of subsequent annual reports.

  13. Pagosa Springs District Heating District Heating Low Temperature...

    OpenEI (Open Energy Information) [EERE & EIA]

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

  14. Geothermal Energy Featured on NBC's Today Show

    Energy.gov [DOE]

    In Iceland, there are five major geothermal power plants which produce about 26% (2006) of the country's electricity. In addition, geothermal heating meets the heating and hot water requirements for around 87% of the nation's buildings. As part of its "Ends of the Earth" series, NBC's Today Show presented a feature on the use of geothermal energy in Iceland.

  15. Enhanced Geothermal Systems Subprogram Overview | Department of Energy

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

    Systems Subprogram Overview Enhanced Geothermal Systems Subprogram Overview This overview of GTP's Enhanced Geothermal Systems subprogram was given at the GTP Program Peer Review on May 18, 2010. overview_egs.pdf (681.23 KB) More Documents & Publications Stanford Geothermal Workshop - Geothermal Technologies Office Geothermal Technologies Program Annual Peer Review Presentation By Doug Hollett Geothermal Technologies Program Peer Review Program June 6 - 10, 2011

  16. Technological Advancements Paving the Way for Geothermal Growth |

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

    Department of Energy Technological Advancements Paving the Way for Geothermal Growth Technological Advancements Paving the Way for Geothermal Growth February 12, 2013 - 2:47pm Addthis Preliminary results show an increase in 2012 year-end geothermal capacity Washington, D.C. (Geothermal Energy Association) - As the Geothermal Energy Association (GEA) prepares to release its annual development report at the State of the Geothermal Energy Industry Briefing on February 26 in Washington,

  17. Rural Cooperative Geothermal Development Electric & Agriculture |

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

    Department of Energy Rural Cooperative Geothermal Development Electric & Agriculture Rural Cooperative Geothermal Development Electric & Agriculture DOE 2010 Geothermal Program Peer Review; Low Temperature Demonstration Projects low_silveria_rural_electric_coop.pdf (557.69 KB) More Documents & Publications Southwest Alaska Regional Geothermal Energy Project District Wide Geothermal Heating Conversion Blaine County School District Novel Energy Conversion Equipment for Low

  18. Grouting for vertical geothermal heat pump systems: Engineering design and field procedures manual. Final report

    SciTech Connect

    1997-12-01

    Grouting of the vertical ground heat exchanger is important for environmental and heat transfer reasons, and is generally accomplished by the placement of a low permeability material into the annular space between the borehole wall and the pipes suspended in the borehole. Backfilling is the practice of placing drill cuttings or other materials into the annular volume, with no specific effort directed toward creating a hydraulic seal. State and local regulations dictate the need for grouting versus backfilling. This manual concentrates on the technical aspects of grouting, including the environmental issues related to grouting, the thermal characteristics of different grouting materials and how the design must account for those, and the practical aspects of grouting for the field technician. Formation conditions are presented where grouting is necessary to assure the quality of the potable water source, while other conditions are cited where only portions of the borehole need to be grouted. Thermal properties of several grouting materials, both bentonite-based and cement-based, are provided as input data to the calculation of borehole thermal resistance. A procedure is provided for the designer of a vertical ground heat exchanger to calculate borehole thermal resistance, and techniques are described to utilize those values in commonly used commercial design software packages. Several sets of field verification data are presented which indicate that the borehole thermal resistance design data are relevant and important in the performance of the vertical u-bend heat exchanger. Finally, procedures are described for the field technician for mixing equipment, pump, and tremie pipe selection. Methods to estimate the volume of grout required for a job are provided. Recommended field procedures for tremie installation and the grouting process are also provided.

  19. Heat Transfer and Fluid Transport of Supercritical CO2 in Enhanced Geothermal System with Local Thermal Non-equilibrium Model

    SciTech Connect

    Zhang, Le; Luo, Feng; Xu, Ruina; Jiang, Peixue; Liu, Huihai

    2014-12-31

    The heat transfer and fluid transport of supercritical CO2 in enhanced geothermal system (EGS) is studied numerically with local thermal non-equilibrium model, which accounts for the temperature difference between solid matrix and fluid components in porous media and uses two energy equations to describe heat transfer in the solid matrix and in the fluid, respectively. As compared with the previous results of our research group, the effect of local thermal non-equilibrium mainly depends on the volumetric heat transfer coefficient ah, which has a significant effect on the production temperature at reservoir outlet and thermal breakthrough time. The uniformity of volumetric heat transfer coefficient ah has little influence on the thermal breakthrough time, but the temperature difference become more obvious with time after thermal breakthrough with this simulation model. The thermal breakthrough time reduces and the effect of local thermal non-equilibrium becomes significant with decreasing ah.

  20. H. R. 843: a bill to amend the Internal Revenue Code of 1954 to clarify the definition of geothermal energy, and for other purposes. Introduced in the US House of Representatives, Ninety-Nineth Congress, First Session, January 30, 1985

    SciTech Connect

    Not Available

    1985-01-01

    A proposed amendment to the Internal Revenue Code of 1954 defines geothermal energy as the natural heat of the Earth (at any temperature) which is stored in rocks, an aqueous liquid or vapor (whether or not under pressure), or any other medium. The clarification also defines the application of tax incentives to business or residential property, specifying the percentage of annual energy that must be derive from geothermal sources to qualify when equipment is also used which draws on other energy sources. Other changes include the substitution of geothermal wells for geothermal deposits and of properties for deposits in the original legislation.

  1. Geothermal Energy Projects | Department of Energy

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

    Geothermal Energy Projects Geothermal Energy Projects Geothermal Energy Projects Geothermal Energy Projects Geothermal Energy Projects Geothermal Energy Projects Geothermal Energy ...

  2. Pagosa Springs geothermal project. Final technical report

    SciTech Connect

    Not Available

    1984-10-19

    This booklet discusses some ideas and methods for using Colorado geothermal energy. A project installed in Pagosa Springs, which consists of a pipeline laid down 8th street with service to residences retrofitted to geothermal space heating, is described. (ACR)

  3. Geothermal Electricity Production Basics | Department of Energy

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

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

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

    SciTech Connect

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

    1997-06-01

    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.

  5. Geothermal Literature Review At International Geothermal Area...

    OpenEI (Open Energy Information) [EERE & EIA]

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal Literature Review At International Geothermal Area, Iceland (Ranalli & Rybach, 2005)...

  6. Geothermal Literature Review At International Geothermal Area...

    OpenEI (Open Energy Information) [EERE & EIA]

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal Literature Review At International Geothermal Area, New Zealand (Ranalli & Rybach, 2005)...

  7. Geothermal Literature Review At International Geothermal Area...

    OpenEI (Open Energy Information) [EERE & EIA]

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal Literature Review At International Geothermal Area, Italy (Ranalli & Rybach, 2005) Exploration...

  8. Geothermal Energy Association Recognizes the National Geothermal...

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

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

  9. Geothermal Energy and FORGE Program Current Outlook

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

    Geothermal Technologies Office Current Outlook Courtesy Ben Phillips Geothermal Resource Council Annual Meeting September 2015 2 Energy Efficiency & Renewable Energy eere.energy.gov GTO Major Initiatives EGS HRC SALT Accelerate EGS * Build upon R&D and demonstration project successes * EGS Integrated R&D FOA * Frontier Observatory for Research in Geothermal Energy (FORGE) FOA kicked off New Geothermal Opportunities * Play Fairway Analysis * Pathway to next-step drilling validation

  10. Geothermal Technologies Office Current Outlook | Department of Energy

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

    Current Outlook Geothermal Technologies Office Current Outlook 2015 GRC GTO Current Outlook final.pdf (3.38 MB) More Documents & Publications GRC Annual Meeting 2015 Presentation: GTO Current Outlook Geothermal Technologies Office Current Outlook 2015 Annual Report, Geothermal Technologies Office FORGE, 2015 Peer Review Plenary

  11. How a Geothermal Power Plant Works (Simple) | Department of Energy

    Energy.gov [DOE] (indexed site)

    Heat from the Earth, or geothermal - Geo (Earth) + thermal (heat) - energy is accessed by drilling water or steam wells in a process similar to drilling for oil. Geothermal power ...

  12. 2008 Geothermal Technologies Market Report

    Office of Energy Efficiency and Renewable Energy (EERE)

    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.

  13. 2008 Geothermal Technologies Market Report

    SciTech Connect

    Cross, J.; Freeman, J.

    2009-07-01

    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.

  14. Ionic Liquids for Utilization of Geothermal Energy | Department of Energy

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

    Ionic Liquids for Utilization of Geothermal Energy Ionic Liquids for Utilization of Geothermal Energy DOE Geothermal Program Peer Review 2010 - Presentation. Project objective: to develop ionic liquids for two geothermal energy related applications. specialized_brennecke_ionic_liquids.pdf (316.21 KB) More Documents & Publications Novel Multidimensional Tracers for Geothermal Inter-Well Diagnostics track 1: Low Temp | geothermal 2015 peer review Metal Organic Heat Carriers for

  15. NREL: Geothermal Technologies - News Release Archives

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

    8 December 18, 2008 GRC 2009 Annual Meeting Announced, Call for Abstracts Issued The Geothermal Resources Council (GRC) issued a call for abstracts today with the announcement of the world's largest geothermal event taking place October 4-7, 2009, in Reno, Nevada, at the Peppermill Resort Spa Casino. Themed "Geothermal 2009: Making Renewable Energy Hot," the GRC is the sponsor of the annual meeting. Archives Current News

  16. Geothermal direct use developments in the United States

    SciTech Connect

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

    1988-08-01

    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.

  17. Numerical studies of fluid-rock interactions in EnhancedGeothermal...

    Office of Scientific and Technical Information (OSTI)

    Subject: 15; CARBON; DISSOLUTION; ENERGY RECOVERY; GEOTHERMAL SYSTEMS; HEAT EXTRACTION; HEAT TRANSFER; POWER GENERATION; PRECIPITATION; RESERVOIR ENGINEERING; STORAGE; TRANSPORT; ...

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

    SciTech Connect

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

    2006-11-01

    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.

  19. DOE Office of Indian Energy Foundational Course on Geothermal

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

    Present foundational information on strategic energy planning, grid basics, and ... Yes Electrical Generation Geo Exchange Systems (Geothermal Heat Pumps) Residential ...

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  1. Roosevelt Warm Springs Institute for Rehab. Space Heating Low...

    OpenEI (Open Energy Information) [EERE & EIA]

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Roosevelt Warm Springs Institute for Rehab. Space Heating Low Temperature Geothermal Facility...

  2. Klamath Apartment Buildings (13) Space Heating Low Temperature...

    OpenEI (Open Energy Information) [EERE & EIA]

    (13) Space Heating Low Temperature Geothermal Facility Facility Klamath Apartment Buildings (13) Sector Geothermal energy Type Space Heating Location Klamath Falls, Oregon...

  3. New Mexico State University District Heating Low Temperature...

    OpenEI (Open Energy Information) [EERE & EIA]

    Heating Low Temperature Geothermal Facility Jump to: navigation, search Name New Mexico State University District Heating Low Temperature Geothermal Facility Facility New...

  4. Osmotic Heat Engine for Energy Production from Low Temperature...

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

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

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

    OpenEI (Open Energy Information) [EERE & EIA]

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

  6. Geothermal Exploration Policy Mechanisms: Lessons for the United States from International Applications

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

    Geothermal Energy News Geothermal Energy News RSS November 15, 2016 Geothermal Energy News Heat from Beneath the Ground - Working to Advance Deep Direct-Use Geothermal Beneath our feet lies a source of geothermal heat that can be tapped to provide heating and cooling to both residential and commercial buildings, manufacturing processes, greenhouses and aquaculture ponds. November 2, 2016 Geothermal Energy News GTO Announces Topics under SBIR/STTR The U.S. Department of Energy (DOE) has announced

  7. Geothermal Technologies Program Fact Sheet

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

    Domestic Power The U.S. Department of Energy's (DOE's) Geothermal Technologies Program (GTP) is committed to developing and deploying a port- folio of innovative technologies for clean, domestic power generation. GTP conducts research, promotes development, and builds partnerships to establish geothermal energy as a significant contributor to America's fu- ture electricity generation. Geothermal energy, a virtually untapped energy resource from the heat of the earth, is more important than ever

  8. Low-Temperature Geothermal Photo Library | Department of Energy

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

    Low-Temperature Geothermal Photo Library Low-Temperature Geothermal Photo Library Addthis America&#039;s First Geothermally Heated Campus adds 3.5 MW of Clean, Domestic Electricity Generation 1 of 2 America's First Geothermally Heated Campus adds 3.5 MW of Clean, Domestic Electricity Generation With Energy Department support, the Klamath Falls campus will utilize 1.5 megawatts (MW) of newly installed geothermal capacity combined with a 2 MW solar array, making OIT the first university in

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

    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. Geothermal Energy at the U.S. Department of Energy | Department...

    Energy Saver

    Geothermal Basics Geothermal technologies dig deep in the earth, an average of two to five kilometers, to access the heat resource naturally found in the subsurface. Multimedia and ...

  11. Senate Energy Committee Passes New Geothermal Legislation

    Energy.gov [DOE]

    Senate Energy Committee moved the ball forward for geothermal energy by passing two important geothermal measures, S. 1142 and S. 1149, on December 15. "These two measures will support exploration drilling, expand geothermal research into heating uses, and expedite leasing and development," remarked GEA Executive Director Karl Gawell.

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

    SciTech Connect

    Not Available

    1994-12-31

    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.

  13. 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

    Xiong, Yi; Fakcharoenphol, Perapon; Wang, Shihao; Winterfeld, Philip H.; Zhang, Keni; Wu, Yu-Shu

    2013-12-01

    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.

  14. 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

    Fakcharoenphol, Perapon; Xiong, Yi; Hu, Litang; Winterfeld, Philip H.; Xu, Tianfu; Wu, Yu-Shu

    2013-05-01

    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.

  15. OSTI highlights first-time electronic availability of geothermal documents

    Office of Scientific and Technical Information (OSTI)

    at San Diego Geothermal Conference | OSTI, US Dept of Energy Office of Scientific and Technical Information first-time electronic availability of geothermal documents at San Diego Geothermal Conference Back to the OSTI News Listing for 2006 The Geothermal Technologies Subject Portal, providing first-time availability of searchable, downloadable historical reports as well as a new look, was highlighted at the Geothermal Resources Council 2006 Annual Meeting in San Diego, September, 10-13.

  16. New Geothermal Prospects in the Western United States Show Promise |

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

    Department of Energy Geothermal Prospects in the Western United States Show Promise New Geothermal Prospects in the Western United States Show Promise February 27, 2013 - 2:21pm Addthis New geothermal prospects in the western United States show promise, according to the new 2013 Annual U.S. Geothermal Power Production and Development Report, published by the Geothermal Energy Association this week. With an estimate of more than 500 Megawatts of new potential in Oregon alone, industry leader

  17. Enhanced Geothermal Systems Technologies

    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.

  18. Edward's Greenhouses Greenhouse Low Temperature Geothermal Facility...

    OpenEI (Open Energy Information) [EERE & EIA]

    of Technology's Geo-Heat Center Retrieved from "http:en.openei.orgwindex.php?titleEdward%27sGreenhousesGreenhouseLowTemperatureGeothermalFacility&oldid305261" ...

  19. Geothermal greenhouse development | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    LibraryAdd to library Journal Article: Geothermal greenhouse development Author P. J. Lienau Published Journal Geo-Heat Center, 1990 DOI Not Provided Check for DOI...

  20. Geothermal Direct Use Technology & Marketplace Workshop Summary

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

    ... * Production of hot water or steam at a ...manageable water losses * manageable induced seismicity * net heat extraction achieved ... energy supply based on geothermal and ...