How Much Do Solar Panels Cost?
Solar panel installation costs vary depending on system size, brand, labor, and additional features like energy storage. On average, solar panels cost between $2.50 to $3.50
The price per watt for solar panels can range from $2.50 to $3.50 and largely depends on the home's geographical area. Residential solar panels are usually sized between 3 kW and 8 kW and can cost anywhere from $7,500 to $28,000 in total installation costs. See average solar panel system costs by size (before tax credits or discounts).
In 2024, the average cost for a solar panel installation is about $2.50 to $3.50 per watt. For example, a 6 kW system might cost between $15,000 and $21,000 before any tax credits or incentives. Cost After Incentives: Federal and state incentives can significantly reduce the cost of your solar project.
The industry standard measurement for comparing solar costs is price per watt ($/W). According to the National Renewable Energy Laboratory's Spring 2025 Solar Industry Update, residential solar costs average around $2.56 per watt before incentives, with most systems ranging from $2.56 to $3.03 per watt. Factors affecting cost per watt include:
Solar panel costs have reached historic lows in 2025, making home solar more affordable than ever before. With the average residential solar system costing between $20,000 and $30,000 before incentives, and the federal 30% tax credit scheduled to step down after 2025, now is an optimal time to invest in solar energy.
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