Just read the same article about CA last week; too much solar to be used so the excess solar generated, get this, was sold-often at a loss--to Arizona(the fact AZ can't make it's own sufficient solar shows the willful neglect, economic and political nature of energy!) and it lowered AZ bills but not CA. We're back to energy traders and Enron price manipulations in the US after 20 years.
Batteries will fix much of it but until the grid has proper storage consumers getting fucked by businesses per usual.
What's also interesting to me is that we here in Utah used to (and maybe still do?) sell dirty electricity to CA (we produce a lot from coal and gas), because they didn't have sufficient base supply.
CA really needs effective base power supply, whether that's batteries or some other clean-ish energy source/storage solution. Meanwhile, electricity here in Utah is quite cheap at $0.12/kWh-ish, which is nice, and something like 1/3 of what CA charges.