Climate change a big threat to nuclear reactors – as water supplies at risk

In August Moody’s Investors Service reported that 48 GW of nuclear capacity across the U.S. face elevated exposure to combined heat and water stress, including plants owned by Exelon Corp., Vistra Corp., Entergy Corp., and the Arizona Public Service Co.

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Climate change poses big water risks for nuclear, fossil-fueled plants, S and P Global, Esther Whieldon Taylor Kuykendall, 23 Oct 20,

Exelon Corp.’s Clinton Power Station nuclear plant in Illinois uses about 248.5 billion gallons of water annually, the utility said in its 2020 report to CDP.to CDP. The plant is in an area projected to face increased water stress by 2030.
As global warming climbs and humanity’s water consumption increases, nuclear and fossil-fueled power plants that rely on freshwater for cooling may not be able to perform at their peak capacity or could be forced to shut down temporarily even as demand for their supplies for indoor cooling and other uses increase, according to researchers and industry experts.
Climate change-exacerbated water shortage issues pose a near-term and longer-term performance risk to power plants, such as hydropower and nuclear, around the world. And in the Lower 48, more than…

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