Pentagon energy planners cool on geothermal production

06/27/2013 |

Since the 1980s, the Pentagon has relied on geothermal sources to produce hundreds of megawatts of energy, making it the largest component of the Defense Department's clean-energy portfolio. That's changing, with solar and wind projects accounting for an increasing share of the department's energy planning. Officials say solar and wind projects are cheaper to build and carry fewer risks.

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