How a Solar Energy System Works. If you want a more environmentally friendly home, a natural step is to add a solar energy system. After all, the sun’s energy has been provided to us in Atlanta for hundreds of years. ACS Heating and Air Conditioning sells the Lennox® SunSource® Energy System to help you create a more efficient home that doesn’t heavily rely on oil and gas. So how does this system work? Put simply, the system uses solar modules, made up of photovoltaic (PV) cells, to take in energy from the sun and convert it to electricity. Afterwards, the electricity can be used to power appliances, lights and other electrical devices in your home – from your HVAC systems to your TV. Grid-tied PV systems If you’re located in or around Tucker, you’ll probably want a grid-tied PV system. These are the most affordable solar energy systems, and they’re linked 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 let your system feed additional 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 decided based on 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 expensive. Stand-alone systems are not tied 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. ACS Heating and Air Conditioning in Tucker is ready to help with your solar energy system questions. Give us a call at 770-450-1539 or schedule an appointment online.