Tag Archives: hydropower

Climate change effects on hydropower in California

[ The main impact is on hydropower, the largest source of renewable electric power in California, and besides natural gas, the only other way to balance wind and solar power, (unless utility-scale energy storage batteries become available).  But hydropower is often … Continue reading

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Electric Cars and Biofuels switch dependence from foreign oil to domestic water and weather risks

  Figure 1. Energy/Water Nexus Amy Hardberger, Matthew E. Mantell, Michael Webber, Carey W. King, Karl Fennessey [ This Senate hearing covers a lot of ground. I found the most interesting testimony to be the intersection of water and energy, … Continue reading

Posted in Drought, Energy Production, Hydropower, Transportation, Water | Tagged , , , | 1 Comment

Hydropower dams and the ways they destroy the environment

[ This contains excerpts and paraphrasing of a 19 November 2014 NewScientist article by Peter Hadfield “River of the dammed“. Dams typically last 60 to 100 years, but whether Three Gorges can last this long is questionable given the unexpectedly … Continue reading

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Hydropower has a very low energy density

To store the energy contained in 1 gallon of gasoline requires over 55,000 gallons to be pumped up 726 feet (CCST 2012). As a thought experiment look at what it would take generate all of America’s 4,058 TWh electricity, where … Continue reading

Posted in Energy Storage, Hydropower, Pumped Hydro Storage (PHS) | Tagged , , , , | 1 Comment

Homeland Security and Dept of Energy: Dams and Energy Sectors Interdependency Study

[Below are excerpts from this 45 page document. Dams not only provide power but also water for agriculture, drinking water, cooling water for thermal power plants, ecosystem health, fisheries, and so on.  All dams have a finite lifespan of 50 … Continue reading

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