Geothermal Energy Technology

Geothermal energy is heat energy from deep in the earth. Heat is brought to the near-surface by thermal conduction and by intrusion into the earth's crust of molten magma originating from great depth. Ground water is heated to form hydrothermal resources -- naturally occurring hot water and steam. Use of hydrothermal energy is economic today at a number of high-grade sites. Hydrothermal resources are tapped by existing well-drilling and energy-conversion technology to generate electricity or to produce hot water for direct use.

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• New Zealand Geothermal Association - Purposes include encouraging research, development and use of geothermal energy in New Zealand.
  
• Geothermal Energy Research and Application Center - This center at the Izmir Institute of Technology undertakes research into the science and technology of geothermal energy and encourages its use in Turkey.
  
• DOE: Geothermal Energy Program - Research and development projects of the U.S. Department of Energy (DOE). Includes insights, technical data and publications.
  
• Deep Heat Mining - Hot dry rock geothermal energy program in Switzerland. About the technology and the ongoing development program, including photos, maps, and diagrams.
  
• DOE: Geothermal Energy - Idaho National Laboratory of the U.S. Department of Energy (DOE). Includes information about use of geothermal energy, laws and standards, calendar of events and FAQ.
  
• Wikipedia: Geothermal Power - Free encyclopedia article describing the concept of geothermal power. Addresses technical aspects, type of sources, electrical generation and cost.
  
• Public Project: Geothermal Renewable Energy - Public project to establish a large scale renewable energy electricity generation facility at a low cost.
  
• European Geothermal Energy Council (EGEC) - Promotes geothermal energy research and development. Includes news, events, details on joining and board of directors.
  
• NEDO: Geothermal Energy Development Department - Department of the New Energy and Industrial Technology Development Organization (NEDO). Includes data about research and development activities.
  
• Geothermal Resources Council - Encourages worldwide research and development on geothermal energy resources and utilization. Calendar of events, workshops, membership information, publications, related links and other information.
  
• DOE: Geothermal Technologies Program - Program of the U.S. Department of Energy focusing on enhanced geothermal systems technology, hydrothermal power and technology validation.
  
• Energy Commission Geothermal Program - Promotes geothermal energy development in California. Includes fact sheets, documents and data.
  
• International Geothermal Association - Information on geothermal energy in use around the world, world conferences on geothermal, and links to related web sites.
  
• Geothermal Energy Technology (GET) - Document database. Includes bibliographic citations and publications.
  
  

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