Solar Energy Systems: How They Work. The sun is already giving off incredible amounts of energy, which is exactly why you should put it to use in your home. With the Lennox® SunSource® Energy System we offer at White Mechanical, Inc. in Laguna Hills, you can cut down on your dependence on oil and gas and reduce your utility bills. So how exactly does it work? The most basic way to explain a solar energy system is that the system uses solar modules made of photovoltaic (PV) cells to take in energy from the sun and convert it to electricity. This electricity powers light, appliances and electrical devices in your home. Grid-tied PV systems Grid-tied PV systems are very common and the most affordable for residential applications. The SunSource Energy System we have available is grid-tied, and that means it’s connected to your utility company’s power grid or power stations. Grid-tied allows you to use your solar energy system to power your home. When the system isn’t creating electricity, your home will receive power through the utility grid. And, when your system produces enough to power your home and then some, it will be fed back into the grid through a process called net-metering. With net-metering, your meter spins forward if you’re using electricity from the grid and backward when you’re SunSource System’s electricity is going back into the grid. *Note: Most rebates and incentives that make a solar energy system easier to afford are only available when your system is grid-tied. Stand-alone PV systems are also available for those in remote areas without utility service, but they cost a lot more. A stand-alone system is not connected to a utility grid and provide for a home’s entire energy consumption. Ready to go solar? Call White Mechanical, Inc. at 949-716-8379 or set up a consultation online. We’re able to help with all your Laguna Hills area solar energy system needs.