Uprated 77 megawatt-electric reactor design becomes second SMR design approved by NRC.

Office of Nuclear Energy

The U.S. Nuclear Regulatory Commission (NRC) has approved NuScale Power’s 77 megawatt-electric (MWe) reactor design. The company’s uprated power module is now the second small modular reactor (SMR) design approved by the NRC—marking another major licensing milestone for the U.S. nuclear sector.   

NuScale Power submitted its standard design application to the NRC on New Year’s Day back in 2023 seeking a power uprate to 77 MWe for each power module, with a total plant power output of 462 MWe.  

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