What they don’t tell you is that it is illegal to be completely off grid in many states. They actually force you to use the local electric companies which forces you to have to pay the electric companies even if you don’t need them. I think that is called a monopoly.
People trying to lower their environmental impact by going solar are being punished for it, in some areas its illegal to collect rainwater to water your garden, to have large food gardens, to keep a couple of chickens. They don't want people to be at all self sufficient.
For decades we were told to cut our electricity usage: turn the lights off when you exit a room, buy energy efficient appliances, forced to buy LED lightbulbs, turn your thermostat up in the summer, on an on. Electric companies pushed the business model of "stop using so much of our product". Now that people have found a way to stop using so much of their product they have a minimum charge.
Simply report this extra fee(s) to the IRS on your taxes. If the IRS see this as a way the utilities are making extra money from you and they don’t report it, they will get audited. (You can do this with every bill you have to make sure companies don’t take advantage of you. Up to you to show how much money you send to each biller per year on your taxes. They do it to us.)
"It really doesn't generate much revenue at all" - Then, obviously, the reason for charging the fee is to discourage people from installing solar panels, not to make a profit.
When I was a kid (in the midwest), our electric company was a co=op. When they made too much money they had to give it back to their customers as a dividend.