How a Solar Energy System Works. The sun is already giving off massive amounts of energy. Why not put it to work in your own home? With the Lennox® SunSource® Energy System we offer at Assured Appliance and Heating & Air in Genoa, you can limit your dependence on oil and gas and see lower utility bills. So how exactly does it work? The easiest way to explain a solar energy system is that the system uses solar modules, which are composed of photovoltaic (PV) cells, to gather energy from the sun and convert it to electricity. This electricity will then power 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 enables you to use your solar energy system to power your home. On occasions when the system isn’t producing electricity, your home will be able to use power through the utility grid. And, when your system produces an excess amount of electricity, it will be fed back into the grid through 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 an alternative for those in remote areas without utility service, however they’re much more expensive. A stand-alone system is not tied to a utility grid and provide for all of a home’s energy needs. Ready to go solar? Call Assured Appliance and Heating & Air at 847-306-8990 or schedule an appointment online. We’re ready to help with all your Dekalb County area solar energy system needs.