Category Archives: Geothermal

Can Geothermal power make up for declining fossil fuels?

Posted on June 27, 2020 by

Preface. Geothermal power plants are cost justified only in places where volcanic or tectonic activity brings heat close to the surface, mainly in “ring of fire” nations and volcanic hot spots like Hawaii.   Even then drilling can only be done … Continue reading →

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Geothermal power is seasonal: more power in winter than summer

Posted on December 4, 2016 by

Eventually fossil fuels will decline to the point that renewables will have to replace them, and the electric grid become 100% renewable.  One of the factors that will make this difficult is that 50 to 90% will need to come … Continue reading →

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2006 Senate hearing on oil and gas, geothermal, and hydrogen fuel cells

Posted on November 26, 2016 by

Senate 109-503. June 27, July 11, July 17, 2006. Implementation of the provisions of the energy policy act of 2005. Enhancing oil and gas production; geothermal energy and other renewables; and hydrogen and fuel cell research and development.  U.S. Senate … Continue reading →

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NREL. April 2012. Geothermal power and interconnection. The Economics of Getting to Market.

Posted on June 4, 2015 by

Excerpts from 44 page: NREL. April 2012. Geothermal power and interconnection.  The Economics of Getting to Market. National Renewable Energy Laboratory.  Technical Report NREL/TP-6A20-54192  [My comment: this is an excellent paper for understanding how the grid works, and why so … Continue reading →

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Enhanced Geothermal Systems (EGS) have a long way to go

Posted on March 28, 2015 by

Geothermal plants such as the world’s largest “The Geysers” in California exist in the rare hot spots near the surface and also need to be near population centers so that the transmission lines don’t end up costing as much or … Continue reading →

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