>>bookof+(OP)
"That is because these systems use the central power grid, which largely runs on fossil fuels, as a kind of battery to cope with power shortages." - not according to PG&E reports from Sonoma County, California, where less than 5% is fossil (natural gas) for 2022.
PG&E Generation Mix:
5% Biomass & Biowaste,
1% Geothermal,
2% Eligible Hydroelectric,
22% Solar,
9% Wind,
8% Large Hydroelectric,
5% Natural Gas,
49% Nuclear.