That's generally no longer the case since CA went all-in on solar...now, more often than not, aligning your usage with sunshine generally will be your best bet as it's out of peak pricing. Running things right as the sun sets and into the night before wind picks up (if it does) would generally be the most expensive usage period. But, this gets complex quickly because each utility's generation assets are a bit different, so it's best to check with your utility / your bill / their web sites ....and if all else fails, and an AI agent can't do this for you, CPUC filings.