Solar Energy Systems: How They Work. If you want a more environmentally friendly home, one step is to purchase a solar energy system. After all, the sun’s energy has been provided to us in North East Texas for millions of years. Ken Parker Service Inc offers the Lennox® SunSource® Energy System to help you create a greener, less oil- and gas-dependent home. But how does this system work? 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 phone charger. Grid-tied PV systems If you’re located in or around Greenville, you will 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 enables you to 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. In addition, grid-tied systems allow your system to feed additional energy back into the grid, which will make your meter spin backwards. We call this process net-metering. The backward spin allows you to save on utility expenses that are totaled 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. Another 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. Ken Parker Service Inc in Greenville is eager to help with your solar energy system questions. Give us a buzz at 903-246-4877 or set up an appointment online.