Update a few hours later: the whole grid right now is renewables+nuclear, all 26GW of demand. The only bit of fossil fuel generation (2GW of co-generation, waste-to-energy and gas turbines) is being exported by interconnection to France and Portugal.

But the moan that 'yeah, EVs don't pollute out of an exhaust pipe - but where's the power coming from?' seldom applies here to any great extent, and should be an irrelevance within a few years.