Solar panels can produce between 1 and 300kw of energy. The average return on investment (ROI) is 7 to 9 years, but can be as little as 2½ years and up to 15 years. Solar panels can be installed as awnings on a building, on roofs, as pavilions or carports. Both flat roof and pitched roof mounts are available. We use solar panels manufactured by Michigan companies, made in Michigan by Michiganders.