Utility Watchdog in San Diego

How Solar Works

A residential photovoltaic (PV) system is relatively simple. There are solar panels, usually mounted on your roof, that generate DC current. An inverter converts the DC current to AC current, which is what we use in our homes. This system is connected to the utility grid at your service panel and the meter measures the amount of electricity coming from or going out to the grid.

During the daytime, the PV system will generate more electricity than we use and the extra will flow out to the grid. Our meter spins backward. When the sun goes down our PV production stops, but we still need electricity and we get it from the grid. Our meter spins forward. Net Metering is the accounting of electricity that flows in and out from the grid.

About UCAN

UCAN has represented the interests of San Diego County utility customers since 1983. UCAN focuses its efforts on the rates and services of San Diego Gas and Electric Company, telecommunications utilities and the City of San Diego Water Department.