As of 2025, the average cost to install solar shingles is $21 to $25 per square foot, or $2,100 to $2,500 per roofing square (100 square feet), including installation and labor. For a standard-size single-family home with a 2,000-square-foot roof, you can expect to pay. . Installing solar panels costs $2. 50 per watt and can increase your home's value, making it more appealing to future buyers. Always check for available incentives or tax credits, which can significantly reduce your out-of-pocket costs. is between $15,000 and $25,000 before incentives. This typically translates to about $2. In 2025, the costs for solar panels continue to trend downward due to technological advances. . The average cost of solar roof system is $49,700, but the cost typically varies from $40,000 and $60,000.