Recent calculations for measuring energy outputs of geothermal systems show that "if properly designed, [geothermal power] plants are sustainable."
- Take our poll and let us know what you think. Do you agree that these power plants are sustainable?
- Download a pdf of "Geothermal—The Energy Under Our Feet: Geothermal Resource Estimates for the United States" a technical report published in November 2006 by the National Renewable Energy Laboratory; see page 16.
