The Forum will enlighten me: does the local power company have competition anywhere in the USA? I thought home solar or windmill provides real-time power plus a pittance for your contribution to the grid at that moment, but you pay for your nighttime/zero wind use since virtually no energy is stored. And the high ridge windmills One Town proposes will be linked to SCE, not "competition".
Once upon a time, you could buy power from anyone, and SCE would deliver it to you. You could buy cheaper power, or green power, or whatever.
I'm not sure that really survived California's deregulation.
SCE is in a very real sense a monopoly, and therefore subject to the will of the California Public Utilities Commission, which (theoretically) prevents them from running amok. Power and telephone companies are usually granted a monopoly so that there is one set of power lines and not several sets. Same for plain old telephone service and CATV. There are now exceptions, especially for telecoms.
Wes might say that the CPUC is in Edison's pocket, and I cannot argue that.
I'm doing this from memory, so feel free to double check.
SCE gets (according to my power bill) $0.03 per day and just under $0.12 per kilowatt to deliver energy to our homes. That covers the cost of running the grid, fixing outages, etc.
What we actually pay for power is supposed to be near break-even for SCE. They buy power on the open market, and sell it to us at their tariffed rate. If this part isn't break even, the tariff is adjusted.
The open market is managed by the California Independent System Operator (CAISO). Nearly all of the generators are owned by for-profit generating companies, exceptions being hydroelectric and nuclear.
Yes, there are times when SCE is buying power at more than their selling cost, but there are also times when they're paying a lot less and it's supposed to balance out.
Best place to read up on this is probably the CAISO web site.
I'm sure this is a gross oversimplification, and the whole system is even more bizarre and inexplicable.