The only argument against that makes any sense is distrust in PG&E, though I can't say I'd have any more faith in it being in the hands of our government...
Decommissioning the nuclear titties seems extremely short sighted. We don't know wtf the weather is going to be doing tomorrow, let alone in 5-10 years and renewables rely so much on the weather it's a bit of a crapshoot. Also renewables mean more batteries and such a large footprint that it seems like it would negate any environmental impact that a nuclear plant has.
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