Solar Energy Systems: How They Work. If you want a more environmentally responsible home, a natural step is to purchase a solar energy system. After all, the sun’s energy has been provided to us in Scottsboro for millions of years. Southern Heating & Cooling Inc. offers the Lennox® SunSource® Energy System to help you create a more efficient home that doesn’t heavily rely on oil and gas. So how does this system work? Put simply, the system uses solar modules, made up of photovoltaic (PV) cells, to collect energy from the sun and convert it to electricity. After this process, the electricity can power appliances, lights and other electrical devices in your home – from your HVAC systems to your phone charger. Grid-tied PV systems If you’re in Scottsboro, you’ll probably want a grid-tied PV system. These are the most affordable solar energy systems, and they’re connected to your utility company’s power grid – hence the name grid-tied. This enables you to use solar energy from your system when the PVs are collecting energy and use electricity from the grid when the system isn’t gathering energy. Additionally, grid-tied systems let your system feed additional energy back into the grid, which will make your meter spin backwards. This is the process of net-metering. The backward spin helps you save on utility expenses that are decided based on how far forward your meter has spun. Please note that most solar rebates and incentives are only available if your system is grid-tied. Another option is a stand-alone PV system, which is more expensive. Stand-alone systems are not tied to the utility grid and are fine options when your home is in a remote location, far away from a utility service or power lines. Southern Heating & Cooling Inc. in Scottsboro is happy to help with your solar energy system questions. Give us a buzz at 256-574-1300 or book an appointment online.