Solar cells convert solar energy into electricity. The process begins when light hits your roof’s solar panels with photons (particles of sunlight). The solar panel converts those photons into electrons of direct current (“DC”) electricity. The electrons flow out of the solar panel and into an inverter and other electrical safety devices. The inverter converts “DC” power (commonly used in batteries) into alternating current or “AC” power. AC power is the kind of electricity your home appliances use when plugged into the wall outlet. Any power generated by the PV system not used by you is exported to the utility grid.
BY California Energy Commission
