As of 2026, the average cost of residential solar panels in the U. is between $15,000 and $25,000 before incentives. This typically translates to about $2. 50 per watt of installed capacity (more on price per watt below). Your actual cost depends on your home's energy needs, roof characteristics, location and other factors, all of which we'll break down in. . Average price of solar modules, expressed in US dollars per watt, adjusted for inflation. 5 kW system, but prices can vary from as little as $7,700 for smaller solar systems to upward of $34,700 for larger systems.
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