Solar-Estimate
Solar panel cost by state December, 2025 Click on your state for solar panels cost localized to your city or use the solar calculator above to see the live prices from solar providers near you.
In 2025, an 8 kW solar panel system costs around $20,720 before incentives, based on real installation data from across the country. But your actual price will depend on factors like your roof's complexity, local labor costs, the equipment you choose, and what incentives are available in your area.
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).
If you've been considering solar, you're probably curious about costs —and maybe a little envious of neighbors who've already made the switch and are enjoying lower electric bills. An 8 kilowatt (kW) solar panel system can help power your home while reducing monthly utility costs.
An 8 kW solar panel system generates approximately 11,614 kWh of electricity each year. That's enough to keep 212 TVs running, power 8 refrigerators, or meet the energy needs of a smaller household (the average U.S. shopper on EnergySage needs about 12 kW of solar). But what else could it do?
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