Tag Archives: River Network

Nuclear and coal burning water: solar doesn’t

Solar power is the smart thing to do for jobs, energy independence, and profit. It’s also what we need to do to save water.

Julia Pyper and ClimateWire wrote for Scientific American 29 June 2012, Electricity Generation ‘Burning’ Rivers of Drought-Scorched Southeast: A new report reckons the water cost of electricity generation

Power plants are guzzling water across the United States and increasing the risk of blackouts in the Southeast, where the precious resource is drying up.

“Burning Our Rivers,” a new report by the River Network, found that it takes about 40,000 gallons of water to meet the average American household’s energy needs, which is five times more than the amount of water used directly in that home….

Table 3. Total Water Footprint of a Kilowatt-hour
(Gallons per kWh)
2009 U.S. Electric Grid
(National weighted average)
Hydroelectric 29.920
Coal 7.143
Natural Gas 1.512
Nuclear 2.995
Geothermal 0.002
Solar 0.002
Wind 0.001
Total 41.575

In the Southeast, which has been battling a drought for more than a year, the impact of power plants is especially worrisome and could lead to brownouts and blackouts throughout the summer and beyond.

“The conflicts between energy and water needs are ones we’ve seen before … and will only worsen as the frequency of drought increases and water temperatures rise driven in part by climate change,” said Ulla Reeves, regional program director at the Southern Alliance for Clean Energy.

The report’s number 1 recommendation:

1. As a nation, we should focus on renewable energy sources and low water technologies.

Why?

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