I'm surprised this area of smart switches aren't more available or popular.

I've done a small amount of research because I could not find a smart charge controller with AC inputs and I was considering making one with a Raspberry pi.

I did however find a smart air conditioning split system that uses solar panels directly and gets any extra power from 120v ac plug: https://www.practicalpreppers.com/air-conditioning/ac-dc-air...

It's quite effective because when the sun is shining, that's when indoor cooling is needed the most.