Solar Energy Systems: How They Work. 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 Woody's Sudden Service Inc in Manassas Park, you can limit your dependence on oil and gas and see lower utility bills. But how does it change from sunlight to energy? The simplest 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 is used to power light, appliances and electrical devices in your home. Grid-tied PV systems This is the most common and least expensive residential solar system. 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 enables you to use your solar energy system to power your home. At times when the system isn’t producing electricity, your home will be able to use power through the utility grid. In addition, when your system produces enough to power your home and then some, 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 putting your SunSource System’s electricity back into the grid. *Note: Most rebates and incentives that make a solar energy system more affordable are only available when your system is grid-tied. Stand-alone PV systems are another option for those in remote areas without utility service, but they cost a lot more. A stand-alone system is not linked to a utility grid and provide for the entirety of a home’s energy consumption needs. Ready to go solar? Call Woody's Sudden Service Inc at 703-369-5528 or set up an appointment online. We’re able to help with all your Manassas Park area solar energy system needs.