I lived in Yolo county in the mid-aughts when there was a (unsuccessful) measure put to voters to expand SMUD into neighboring PGE territory. The amount of money time and favors PGE cashed in on FUD to defeat that measure was staggering. They were willing to spend literally whatever it took to win (and they did).
And the ratepayers covered these costs to prevent the ratepayers from having a choice on who they sourced energy from.
PG&E has lobbying arms paid by employee-sponsored PAC's. They also have the ability to manipulate their interests through direct operating expenses.