Category Archives: Hydropower

Hydropower dams and the ways they destroy things

[ 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

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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

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