You are probably going to get downvoted, but this is a legitimate issue, at least in some regions. Widespread use of solar has changed the dyamic. If we look at demand net of solar supply, the demand curve has changed in the following ways.
1) The lowest demand is lower. This has pushed baselod generation off grid
2) The rise in demand when the sun goes down is very steep. This creates challenges for the utility. They need to have a lot of generation (or batteries) available that can spool up fairly quickly.
As far as economics go, this means that the rapid spool up generators have to charge pretty high rates. They can't charge the low rates that baseload supply charges. Because many of the costs associated with generation do not depend on how much electricity you sell. There is infrastructure cost that is amortized over time, personnel cost, etc.
All of this has been anticipated for decades. So there was plenty of time to do something about it. But a lot of utilities spent all their effort trying to fight against it instead of figuring out how to make it work.