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What is geothermal energy?
Geothermal Resources Council
Encourages worldwide research and development on geothermal energy resources and utilisation.
Geothermal Energy Association
A trade association composed of U.S. companies who support the expanded use of geothermal energy for electrical power generation.
Geothermal Education Office
Education-related. Includes worldwide geothermal resources map, an energy scrapbook, and classroom materials.
Geothermal Power News
The latest information resources about geothermal heating and energy.
NREL: Geothermal Technologies Program
Describes the US Department of Energy (DOE) geothermal energy program. Includes facts and news.
Advantages and disadvantages of geothermal systems
Before you decide to invest in a geothermal system, you’ll want to know the pros and cons.
WaterFurnace - Geothermal Comfort Systems
WaterFurnace geothermal systems use the free, renewable energy found in your own backyard to save up to 70% on heating, cooling, and hot water costs.
Geothermal Heat Pumps
Geothermal or ground-source heat pumps use the natural heat storage capacity of the earth or ground water to provide energy efficient heating and cooling.