Broan Solar Powered Attic Ventilators use energy from the sun to operate and require no additional electricity, which means you save up to $180 per year that you might pay to operate an electric powered attic ventilator, depending on your local electric rates, size of attic, climate, etc… Plus, you can save even more with a 30% Federal Tax Credit on both the purchase price and installation costs of your Solar Powered Attic Ventilation. Because Broan Solar Powered Attic Ventilators operate without fuel, waste, or pollution, they earn points towards Green building. So you can save money on electricity without using any to do it, which is green for the environment, and puts some extra green in your wallet. For most roofs, our one piece Solar Powered Attic Ventilator is the perfect solution. Because our solar cells are highly efficient at capturing the sun’s energy, there is no need for unsightly raised panels or tracking systems. Instead, what you see is a low profile ventilator in a contoured design that integrates well with the roof.