There is only one nuclear plant operating in California, the twin reactor Diablo Canyon, owned by PG&E. They stated in 2016 it will close the first reactor in 2

There is only one nuclear plant operating in California, the twin reactor Diablo Canyon, owned by PG&E. They stated in 2016 it will close the first reactor in 2024 and the second in 2025. PG&E estimates the decommission will take twenty years and cost $4 billion. Of course, it will never be closed since the spent fuel will exist in concrete casks on the property. Since it was built in 1968, two faults were discovered, one a few miles offshore and another less than a mile inland. PG&E made structural changes to the plant in 1981. In 2011, PG&E told the NRC to hold the twenty year renewal permit until the company could do a seismic study in wake of the Fukushima disaster because coastal California suffers from both earthquakes and tsunamis. PG&E determined it was too expensive to continue to operate the plant and it could not take on the liability if a Fukushima type disaster happened at Diablo.