How a Solar Energy System Works. If you want a more eco-friendly home, a natural step is to add a solar energy system. After all, the sun’s energy has been cleanly shining down on us in Lawrence for millions of years. Scott Temperature sells 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 take in 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 in Lawrence, you will want a grid-tied PV system. These are the least expensive solar energy systems, and they’re tied 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 night, or when the system isn’t gathering energy. Grid-tied systems also let your system feed additional energy back into the grid, at which time your meter will spin backwards. This process is called 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. The other option is a stand-alone PV system, which is more costly. Stand-alone systems are not connected to the utility grid and are nice options when your home is in a remote location, not near a utility service or power lines. Scott Temperature in Lawrence is ready to help with your solar energy system questions. Give us a shout at 785-843-2244 or schedule an appointment online.