Welcome to the Northern California Rooftop Photovoltaic Cost/Benefit Calculator. Unlike most other similar calculators on the internet, this runs against an accurate model of your utility rate structure, including correct modeling of Time-Of-Use (TOU) rates as well as an accurate model of solar insolation in your area. Electric load (your use) is estimated from one of two sources. The first is the dynamic residential load averages available on the PG&E website, the second is a 24-hour model that you can configure with your own particular load curve.
Please fill in all the questions, the click the submit button. The analysis will take several secdons, and you will be presented with statistics on cost, generated power, etc.