Solar Energy Systems: How They Work. If you want a more environmentally responsible home, a “green” step is to add a solar energy system. After all, the sun’s energy has been provided to us in Brea for thousands of years. Econo Air 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? 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 be used to 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 Brea, you will want a grid-tied PV system. These are the least costly solar energy systems, and they’re tied 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. 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 helps you save on utility expenses that are totaled 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. Another option is a stand-alone PV system, which is more expensive. Stand-alone systems are not connected 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. Econo Air in Brea is ready to help with your solar energy system questions. Give us a buzz at 714-695-6661 or book an appointment online.