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
- Geothermal Electricity Production
- Geothermal Heat Pumps
- Geothermal Resources
Or read more about EERE's geothermal technologies research.