California still has an enormous quantity of untapped fossil fuel. While wind, solar and bio might provide some relief, there is so much oil still in the ground which can be extracted inexpensively. Now sure if people are aware but in LA/So Cal there are oil derricks downtown which are discussed as building.
The SF Bay Area has a rich supply of untapped oil. When the price of oil drops, the smaller oil companies go out of business and the wells sit idle.
Hydrocarbon fuel is so energy dense the only fuel which can and has repalced it has been nuclear. The two modes of transportation which nuclear, solar, wind, and bio can not replace hydrocarbon fules are rocekts and airplanes. We had nuclear powered aircraft, but we found hydrocarbon fuel was far safer for the crew and passenegers.
Bottom line, solar, wind, batteries and bio just don't have the energy density of hydrocarbons and nuclear. Only way to chage that is to change the laws of physics.