These panels measure approximately 65 inches by 39 inches (about 5. 25 feet), with a depth of 1. 5 square feet of surface area per panel. This format has remained remarkably consistent even as wattage has increased. Unlike solar panels, solar shingles are more incorporated with the roof itself—which makes for an aesthetically cohesive look and the protective benefits of roofing material. Some styles are placed. The average cost of solar roof shingles ranges between $25,000 to $60,000, or between $15 to $35 per square foot, for the average U. Adjust your electric bill to fine-tune your savings estimate and the recommended number of solar panels for your home. Compare loan, lease, and purchase options for your solar. Solar shingles, also called photovoltaic shingles, are solar panels designed to look like and function as conventional roofing materials, such as asphalt shingle or slate, while also producing electricity. Solar shingles are a type of solar energy solution known as building-integrated photovoltaics. Quick answer: A modern residential solar panel measures roughly 66–82 inches long, 40–45 inches wide, and 1. 6 inches thick, weighs 40–55 lb, and produces 350–460 watts.