How Much Does Rooftop Solar Installation Cost? (in 2026)
Rooftop solar installation costs between $2.58 and $2.75 per watt in 2026, translating to a total investment of roughly $21,816 to $31,135 before incentives for most residential systems. If you’re budgeting for solar, that baseline gives you a realistic starting point, but the final number shifts depending on system size, equipment quality, roof characteristics, and where you live.
Key Takeaway: Expect to pay $2.58, $2.75 per watt for residential solar in 2026. A typical 7.2 kW system costs about $21,816 cash or $26,004 financed, while a larger 12 kW setup averages $31,135 before any …
