When the sun goes down or clouds roll in, or the wind stops blowing then CA has to buy the dirty oldd grid electrons.
They always buy the dirty electrons. They buy a lot from the Northwest. Now the northwest has about 30% hydro, plus LNG, Coal, Wind, Nuke. But a chunk is “dirty”. The CA proclamation is just BS PC garbage. We as a nation are trying to move to cleaner energy, but what CA did does nothing to speed that process.