How much money can I save?

Conservatively speaking, without hyping the performance of these systems, a 2 kilowatt system will generate (save) 200 kilowatt hours of electricity per month, a 5 kilowatt system will generate 500 kilowatt hours of electricity per month, and a 10 kilowatt system 1000 kilowatt hours of electricity per month. The figures reflect the average generation per month over a period of twelve months, and take into account lower winter and higher summer generation. You can use the Clean Power Estimator from the PG&E website to estimate the savings at your home.