DOE Geothermal Energy Program. John T. Finger Geothermal Research Department Sandia National Laboratories 1
John T. Finger
Geothermal Research Department
Sandia National Laboratories1
1Sandia National Laboratories is a multi-program laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the U. S. Department of Energy under contract DE-ACO4-94AL85000.
1. United States: 2850 MWe
2. Philippines: 1909 MWe
3. Italy: 785 MWe
4. Mexico: 755 MWe
5. Japan: 547 MWe
World Total: 8500 MW
(30-acre Greenhouse, NM)
(The Geysers, CA)Two Kinds of Geothermal Application
Less than 20 MWHeat and Power for the 21st Century
Over 2800 MW (electric)
Over 500 MW (heat)
- Balance national energy portfolio
- Capture domestic and international markets
- Limit impacts of power production
Mission: To work in partnership with U.S. industry to establish geothermal energy as an economically competitive contributor to the U.S. energy supply.
Geoscience and Supporting Technologies
Diagnostics while drilling
GeoPowering the West
Advanced Plant Systems
Energy Systems Research
Near-term technology development
U.S. IndustryProgram Structure
GeoPowering the West
Double the number of States with geothermal electric power facilities to eight by 2006.
Reduce the levelized cost of generating geothermal power to 3-5 cents/kWh by 2007.
Supply the electrical power or heat energy needs of 7 million homes and businesses in the United States by 2010.
Supply 10%of electricity used in the western states by 2020.
Focus on Priority Areas
Leverage Resources and Replicate Results
Coordinated ActivitiesGuiding Principles
NREL aims to make geothermal power plants, primarily using low- to moderate-temperature resources, operate more efficiently and with less maintenance. This effort includes development of different power-cycle technologies and new materials.
INEEL work in geophysics and geoscience is directed toward improved location and definition of geothermal reservoirs. It is particularly important to understand orientation of and flow patterns through large fracture systems in the reservoir.
PDC Bitsreduced drilling costs
HT Electronics better measurements for
drilling and reservoir evaluation
Develop downhole logging and drilling tools that provide reliable, accurate data under geothermal conditions
Slimhole Drillinglower exploration costs
Lost Circulation Controlsafe, efficient drilling
Advanced Direct Contact Condensers (FY1999) Improves efficiency of flashed and dry steam power plants by as much as 5%
CaP Cement (FY2000) Used in harsh, hostile environments (hypersaline brine, high CO2 content, high acidity, up to 320°C)Program Accomplishments
R&D 100 Awards
Southeast Geysers Effluent Pipeline
Electric Generation Potential
uses the Earth’s
natural heat for some
Because the center
of the Earth is so hot, almost any location could provide energy if we drill deep enough, but there are only limited locations where hot rock comes near enough the surface for this to be economical.