How a Solar Energy System Works. If you want a more environmentally responsible home, a natural step is to add a solar energy system. After all, the sun’s energy has been provided to us in Ontario for millions of years. Stan's Heating, Inc carries 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 harvest 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 Ontario, 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 lets you use solar energy from your system when the PVs are collecting energy and use electricity from the grid at times when the system isn’t gathering energy. Grid-tied systems also let your system feed additional energy back into the grid, causing your meter to spin backwards. This is the process of net-metering. The backward spin lets you save on utility expenses that are decided based on how far forward your meter has spun. You should note that most solar rebates and incentives are only available if your system is grid-tied. The second option is a stand-alone PV system, which is more costly. 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. Stan's Heating, Inc in Ontario is happy to help with your solar energy system questions. Give us a buzz at 541-889-3987 or set up an appointment online.