Google to Invest in Geothermal

The company is investing a little over $10 million in the development of Enhanced Geothermal Systems
by By Tom Zeller Jr.
New York Times Science

Google.org, the public-spirited division of Google.com, charged with addressing “climate change, poverty and emerging disease,” is using the backdrop of the National Clean Energy Summit here in Las Vegas to announce a new round of clean energy financing.

In a nutshell, the company is investing an arguably modest sum — a little over $10 million — in the development of Enhanced Geothermal Systems, or EGS. The technology differs from “traditional” geothermal in that rather than exploiting existing wells of earthbound steam and hot water, EGS drills deep — miles down — to access layers of heated granite that exist underfoot everywhere on the planet. Water can be circulated downward for heating, and then upward to drive turbines and generate electricity.

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