Arctic Heat: Power from the Earth

Miriam HornThis post is by Miriam Horn, a writer at Environmental Defense Fund and co-author of the New York Times bestseller, Earth: The Sequel. It’s part of a video series on new energy technologies, Unleash the Future.

1. Introduction (YouTube)
2. Solar
3. Biofuels
4. Geothermal
5. Wave

While solar, wind and wave energy all originate with the Sun, the heat locked up in the Earth itself offers another huge potential energy resource. Historically, that “geothermal” power could be converted into electricity only in those rare locations where natural fissures allowed water to flow into deep hot rock and come to the surface at temperatures high enough to generate steam. Now an innovator in Alaska has developed the first low-temperature geothermal power plant, which United Technologies is commercializing for worldwide sale.

Take a look at my short video on geothermal power to learn more.

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If you have any questions or comments on geothermal energy, please post them here. I’ll do my best to answer.

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One Comment

  1. Posted June 26, 2008 at 5:57 pm | Permalink

    Here are some questions I received in email:


    Where do I find out more [about geothermal energy]?


    As part of this video series, we developed factsheets for each of the energy technologies. The geothermal factsheet has sources at the bottom.

    You also can visit to learn more about the Chena Hotsprings project. United Technologies also has lots of info on geothermal power. Jeff Tester at MIT has explored the possibilities for Enhanced Geothermal Systems and did an interesting presentation at the DOE Geothermal Program Workshop [PDF].

    And, of course, you can buy Earth: The Sequel to learn more.