Solar Energy Systems: How They Work. The sun is already generating incredible amounts of energy, which is exactly why you should put it to use in your home. With the Lennox® SunSource® Energy System we have available at Red Dog Cooling, Heating, & Plumbing in Selbyville, you can limit 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 is used to power light, appliances and electrical devices in your home. Grid-tied PV systems Grid-tied PV systems are the most common and least expensive for residential solar systems. The SunSource Energy System we offer is grid-tied, and that means it’s connected to your utility company’s power grid or power stations. Grid-tied lets you 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. Additionally, when your system produces more electricity than you will use, it will be fed back into the grid through the process of 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 Red Dog Cooling, Heating, & Plumbing at 302-436-2922 or set up an appointment online. We’re able to help with all your Selbyville area solar energy system needs.