There are quite a few solar plants being built on the US/Mexico border in CA right now. The new CA carbon offset program has pushed generating costs up a lot. But solar and wind are still smaller and unpredictable percentages in the southern CA power market. Hydro is big up north and should be higher this year thanks to the higher rain and snowfalls.
Warren Buffet's Mid-American Energy is getting involved.
http://www.midamericanrenewablesllc....tus_solar.aspx
Even our state has started tapping into it's wind potential (thanks for the all the fucking cold wind Canada). But mostly for the PR and to sell it to someone else as there are no requirements for renewable energy in the state. Two large wind farms are done and another one was announced this week. They'll proabably need to spend some serious money on a new transmission line to get the added power to the people. Especially if they keep adding more wind farms.