New petition proposes rule that would require nuclear spent fuel pools to have emergency systems able to function for two years without operating grid

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The NRC requires U.S. nuclear power plants to be able to shut down safely in the face of many extreme events – tornados, hurricanes and earthquakes. But the NRC also takes into account far more unusual events, like solar flares and electromagnetic pulse (EMP) caused by a certain type of nuclear weapon. Both can affect generators, transformers and other parts of the electric grid – which in turn could affect nuclear power plants.



Earlier this year a citizen petitioned the NRC to revisit the issue of grid disruption, this time focusing on the spent fuel pools at U.S. nuclear power plants.

The petition calls for a new rule that would require nuclear power plant spent fuel pools to have emergency systems capable of functioning for two years in the absence of an operating electric grid. The NRC is currently analyzing dozens of public comments on the petition, and the agency expects to issue a decision on the petition in the middle of next year.


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