THIS IS A LINK TO "GO SOLAR CALIFORNIA'S" ENERGY CALCULATORS. Both business and residential customers can calculate the cost, rate of return, and payback period for your system. We have been informed that the cost data on this site comes from a reporting system on all actual solar system installs. In order to run the calculations you need to have the size of your projected solar system--you can run different scenarios.
Granite not such a green option
Green homes are the future. Consider this when making improvements - San Francisco is!
I hope that all counties consider streamlining the building permit process as Sacramento is doing.