They need to be careful with how high these charges are. Replacing their grid connection with an oversized solar-battery system combined with a propane backup generator might be more attractive to rich folks.
And with the legislature having full freedom to shift subsidies according to current direction of the political breeze, power charges are effectively integrated into the California tax code, not to be analyzed apart from it:
> The utilities commission has $280 million in an “equity fund” to assist low-income consumers.