This guy goes over the changes when NEM 3.0 takes effect in 2022. The smaller bill with lower solar power will be at a disadvantage and there will be a disincentive to get rooftop solar. In other words the owner will save minimal or no money over the lifetime of the system. Also the solar installation will require purchasing a battery storage. The only ones who will save a decent amount will be those whose bills are $200(?) or more.
Another video about this, he basically reads an article from ?? He talks about California imposing an 8% solar tax.