Geothermal energy is clean, but requires high startup costs, experts say

12/10/2008 | LiveScience.com

Geothermal energy captures heat below the surface of the Earth to generate electricity, and 8,000 megawatts of geothermal electricity now are produced around the world. California currently has more geothermal power online than any other state, with geothermal energy accounting for about 5% of its electricity. Experts note that geothermal energy is very clean and abundant, but requires high startup costs.

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