How a Solar Energy System Works. If you want a more eco-friendly home, a natural step is to purchase a solar energy system. After all, the sun’s energy has been provided to us in Indian River County for thousands of years. Custom Air Systems Inc offers the Lennox® SunSource® Energy System to help you create a home that relies more on natural energy and less on oil and gas. But how does this system work? Put simply, the system uses solar modules, made up of photovoltaic (PV) cells, to harvest 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 computer. Grid-tied PV systems If you live in Indian River County, you’ll probably want a grid-tied PV system. These are the least costly solar energy systems, and they’re linked to your utility company’s power grid – hence the name grid-tied. This allows you to use solar energy from your system when the PVs are collecting energy and use electricity from the grid at times when the system isn’t gathering energy. Additionally, grid-tied systems enable your system to feed extra energy back into the grid, causing your meter to spin backwards. This process is called net-metering. The backward spin helps you save on utility expenses that are determined by how far forward your meter has spun. Please note that most solar rebates and incentives are only available if your system is grid-tied. The other option is a stand-alone PV system, which costs more. Stand-alone systems are not connected to the utility grid and are nice options when your home is in a remote location, far away from a utility service or power lines. Custom Air Systems Inc in Indian River County is ready to help with your solar energy system questions. Give us a shout at 772-571-1080 or set up an appointment online.