Solar panel installation cost averages $27,172 for a standard home, with most homeowners spending between $18,351 and $36,399. Prices vary based on system size, panel type, and installation complexity. 50 per watt installed, with larger systems. . Solar panels generate “free” electricity, but installing a system still costs money. That price effectively drops to $19,873 after considering the full federal solar tax credit. . 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. This article was created using automation technology. . 3,372,403 online estimates since 2008! Enter your address and the cost of your most recent electric bill Our estimator shows how many solar panels your home needs We generate an online cost and savings estimate You choose how many solar companies send you an exact price by email or text Click on. .