Electrical, Mechanical & Sustainable Engineers
Photovoltaic Solar Power Design-Build Package
Education Center

How does a PV Solar System Work?

A PV solar system is made of three key components:


1. PV Solar Modules (Panels)

Solar electricity is produced when sunlight strikes the surface of the panels. The electricity is produced in DC form, much like a car battery.

2. Inverter

Converts the DC power produced by the panels into AC power. This is used by your home or business and by the PG&E grid.

3. PG&E Grid Interconnection

Your system is physically connected to your PG&E meter to provide excess power for sale back to the utility. When it’s making more power than you are using (mid-day or late night) your meter will spin backwards, which reduces your bill. And if your system produces enough power your PG&E electric bill will be ZERO!

NOTE: additional equipment is needed to mount the panels to a fixed surface, concentrate the electricity coming from the modules, and control the interactions of the inverter and the utility grid.

For a more detailed look at how Commercial or Residential PV systems work click on the link.

For more Education Center information:

What is a solar electric or photovoltaic (PV) system?
How does PV technology work?
Is my home or Business a good place for a PV system?
Do I have a good roof?
What are the different types Of Mountings?
How much electricity will a PV system produce?
How big should my PV system be?
What features should my PV system have?
How affordable is a PV Solar System?