How much does a solar panel system cost in 2026?

The average residential solar panel system in 2026 costs between $2.65 and $3.20 per watt before incentives. A standard 8kW system costs around $22,400 gross, but drops to $15,680 after applying the 30% Federal ITC tax credit.

How does the 30% Federal Solar Tax Credit (ITC) work?

The Federal Investment Tax Credit (ITC) allows U.S. homeowners to deduct 30% of their total solar system installation cost (including equipment, labor, and battery storage) directly from their federal income taxes.

2026 US & UK Solar Installation Pricing Model

Solar Panel Installation Cost Calculator

Calculate gross installation cost, 30% Federal Solar ITC tax credit deductions, battery backup storage add-ons, and net system payback period.

Solar System Estimate Generator

Adjust your home square footage, monthly electric bill, panel efficiency grade, and battery storage.

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Gross System Cost: $23,600
30% Federal ITC Credit: -$7,080
Net System Cost: $16,520

Estimated 25-Year Utility Bill Savings: $48,600 | Est. Payback: 6.2 Years