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Category 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
Posted in Energy, Hydropower
Tagged california, climate change, hydropower
Comments Off on Climate change effects on hydropower in California
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 hydropower, peak oil, peak water, water dependence
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
Posted in Dams, Hydropower
Tagged china, hydropower, Three Gorges dam
Comments Off on Hydropower dams and the ways they destroy the environment
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 electric, energy density, hydropower, PHS, pumped hydro
1 Comment
Hydropower is temporary. Dams silt up, limited rivers, long permitting process
1) Ultimately dams silt up, usually within 25 to 200 years, so hydro-power is not a renewable source of power. 2) We’ve already dammed up the best rivers. There are now more than 45,000 dams around the world, affecting more … Continue reading
Posted in Alternative Energy, Energy, Hydropower
Tagged bureaucracy, dams, permits
Comments Off on Hydropower is temporary. Dams silt up, limited rivers, long permitting process