When the sun is shining, your solar system generates electricity, which means you will purchase less electricity from the local utility.
Over the course of one year, your utility will track the amount of electricity your system has fed into the grid and use this credit to offset the costs of power purchased from the utility when your system does not generate electricity, i.e. cloudy days or at night.
At the end of the year, the utility will "true up" how much electricity it provided to you, and compare it to how much your system fed back to the utility grid.
If you produced more than you consumed, your bill will be close to zero. If you used more electricity than you generated, you will only pay the difference. New Solar Homes Partnership Calculator - click here
This is a detailed hourly calculation tool based on the 5-parameter
model developed by the Solar Energy Laboratory at the University of
Wisconsin. The CECPV Calculator incorporates detailed inverter
performance modeling and uses weather data from the 16 climate zones in
California (as used by the Title 24 compliance calculations).
Solar energy is one of our state's most abundant - and least utilized - renewable resources. The California Solar Initiative offers cash incentives on solar systems - currently, $2.50 a watt for existing homes. California Solar Initiative incentives, combined with federal tax incentives, can cover up to 50 percent of the total cost of a solar system.
For your existing home and all nonresidential facilities, when you decide to go solar, a solar installer typically will contact a California Solar Incentive program administrator on your behalf to apply for an incentive and arrange for your system to be interconnected to your utility company's power grid.
How To Apply
Step 1. Find out if Your Home is Right for Solar Incentives
Documents for the California Solar Initiative - Click here
For Existing Homes & Solar on All Other Existing Properties
Performance-Based Incentives and New Incentive Levels -Click here
The California Public Utilities Commission (PUC) issued a decision that calls for a transition of the California Solar Initiative to Performance Based Incentives that reward properly installed and maintained solar systems.