Category Archives: Geothermal

Geothermal power is seasonal: more power in winter than summer

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

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.

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

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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Geothermal – can it make up for peak fossil fuels?

Geothermal provides less than half a percent of U.S. electric power. NREL (2016) recently looked at whether the current 3.8 GWe could be doubled to 7.6 GWe by 2020,  and found that only .784 GWe was likely, with another .856 … Continue reading

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