Solar Thermal
There are 4243 megaWatts approved, and 1500 megaWatts under review. 1164 megaWatts are installed, and an average cost of $7.08 per Watt, for projects greater than 10 kiloWatt.
Solar Photovoltaic and the California Solar Initiative
As of 4/4/12, there are 1858 megaWatts in some form of completion. They are broken down by utility as PG&E 800 megaWatts, SC Edison 886 megaWatts, and CCSE (California Center for Sustainable Energy) 172 megaWatts.
Adding both categories gives 7600 megaWatts of solar power.