So make or buy your own generator. Or better yet startup an energy supply company. That's the point of it never beeing monopoly. The market is ripe for entry.
So... the electric company can't become a monopoly because you can spend the money and effort to create your own electric company? How can that not be said for anything anywhere that becomes an obvious monopoly?
I think there are legal prohibitions on just putting up solar panels and going off the grid in CA. Like I said, it's the same cartel behavior over a different resource. You cannot start an energy supply company in California, only PG&E can supply power to people in California
So fix California's absurd energy policy. They "deregulated" by giving PG&E a monopoly, paid Enron an absurd ransom when Enron did what should have been considered fraud and made Californian's pay the state back, routinely harm individual solar owners, and refuse to give PG&E any reason to actually maintain their century old infrastructure that sits in a dry forest etc.
People repeatedly point at California fucking up "X" and then say "look how bad X is" ignoring that the other 48 states in the union (Texas also likes to find innovative ways to fuck things up) are doing various amounts of "alright" to "quite well actually" at "X".
For example, Maine also "deregulated" it's electricity sector in the 90s, and is only recently facing problems from the state sanctioned monopoly doing bullshit, and they have an actual excuse that we haven't built out new generation capacity since deregulation, and climate change means we have had an entire year of windstorms destroying the grid, including multiple storms taking out distribution to 1/3rd of the state.
So, if everyone switches from oil, guess where the price gouging and collusion will move to?