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Representing the industry's next wave, Calpine's enhanced geothermal systems project has tapped into heat stored in rock more than 11,000 feet beneath the surface.

Image credit: Nate Seltenrich

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Uploaded: Jul 25, 2012 | Post / Read Comments (1)

Image Archives: Stories: News & Opinion: Nate Seltenrich

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  • Nate Seltenrich
  • Jul 25, 2012
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