How a Solar Energy System Works. If you want a more environmentally responsible home, a “green” step is to purchase a solar energy system. After all, the sun’s energy has been provided to us in Humble for millions of years. Arrings A/C & Heating sells the Lennox® SunSource® Energy System to help you create a greener, less oil- and gas-dependent home. Just 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. Then, 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’re in Humble, you’ll probably want a grid-tied PV system. These are the least costly solar energy systems, and they’re connected to your utility company’s power grid – hence the name grid-tied. This lets you use solar energy from your system when the PVs are collecting energy and use electricity from the grid at night, or when the system isn’t gathering energy. Additionally, grid-tied systems enable your system to feed extra energy back into the grid, which will make your meter 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. It’s important to 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 is more expensive. Stand-alone systems are not linked to the utility grid and are good options when your home is in a remote location, not near a utility service or power lines. Arrings A/C & Heating in Humble is ready to help with your solar energy system questions. Give us a shout at 281-713-8304 or schedule an appointment online.