Record Heat, Drought Pose Problems for U.S. Electric Power

Image: One of the reactors at the Millstone nuclear power station had to shut down when temperatures in the Long Island Sound, its source of cooling water, became too warm. (Roger Ressmeyer, Corbis)

news.nationalgeographic.com - August 17th, 2012 - Joe Eaton

Record heat and drought conditions across the United States this summer have plagued power plants that require cool water to produce electricity.

From Connecticut to California, high water temperatures and diminished access to water caused by drought have forced a number of power plants to ramp down production or acquire waivers to operate with cooling water above regulated temperatures. At least one plant has suspended operations.

Many nuclear plants have struggled this summer with cooling water sources that approached being too warm to generate power at full levels, said David McIntyre, spokesman for the U.S. Nuclear Regulatory Commission (NRC).

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