Solar Panel Cost per Watt by State: A Comprehensive Guide
The cost of solar panels has been on a steady decline in recent years, making renewable energy a more accessible and affordable option for homeowners across the United States. However, the cost of solar panels can vary significantly depending on the state, local incentives, and installation prices. In this article, we will provide a detailed breakdown of solar panel cost per watt by state, including average costs, installation prices, and expected payback periods.
Average Solar Panel Cost per Watt in the US
The average cost of solar panels in the US is around $2.50-$3.50 per watt before incentives. This translates to a total price of approximately $18,180 to $23,625 for a typical 6-kW solar system. However, with the 30% federal tax credit, the net cost can drop significantly to around $12,726.

Solar Panel Cost per Watt by State
While the national average cost of solar panels is around $2.50-$3.50 per watt, costs can vary significantly depending on the state and local incentives. Here's a snapshot of average solar panel cost per watt by state:
- Florida:** $2.40-$3.40 per watt, with a typical 6-9 kW system costing $8,000 to $20,000 before incentives.
- Rhode Island:** $2.90-$3.90 per watt, with a typical 4-10 kW system costing $10,000 to $28,000 before incentives.
- New York:** $2.80-$3.30 per watt, with a typical 6.5 kW system costing $16,000 to $18,000 before rebates or tax credits.
- California:** $2.60-$3.60 per watt, with a typical 6-10 kW system costing $12,000 to $20,000 before incentives.
- Nevada:** $2.50-$3.50 per watt, with a typical 6-10 kW system costing $9,000 to $17,000 before incentives.
- Arizona:** $2.40-$3.40 per watt, with a typical 6-10 kW system costing $8,000 to $16,000 before incentives.