Solar Panels in South Carolina: Cost, Savings & Incentives (2026)
How much do solar panels cost in South Carolina in 2026? Typical 9.0 kW system: $18,900 after 30% ITC, 15.8-year payback, 5.3 sun hrs/day, 13.5¢/kWh. Free calculators.
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South Carolina solar decision guides
Data hub — jump to in-depth sizing, bill-based, or policy guides. This page stays focused on rates & incentives.
South Carolina solar snapshot (2026)
A 9 kW system in South Carolina produces roughly 13,928 kWh/year at 5.3 peak sun hours and 13.5¢/kWh — saving about $1,880/year with ~10-year payback after the 30% ITC.
| Cost item | Amount |
|---|---|
| System cost (9 kW) | $27,000 |
| Federal 30% ITC | −$8,100 |
| Net cost after ITC | $18,900 |
| Est. annual savings | $1,880/yr |
| 25-year net profit (est.) | $28,100 |
Get at least 3 installer quotes — pricing varies up to 30% within the same state.
South Carolina solar incentives
Federal ITC — 30%
All US homeowners qualify for the 30% federal Investment Tax Credit through 2032. On a $27,000 system, that's a $8,100 dollar-for-dollar tax credit.
South Carolina state programs
South Carolina offers a 25% state income tax credit on solar installation costs (up to $3,500 or 50% of tax liability). This stacks with the federal 30% ITC, making South Carolina one of the best states for combined incentives. Duke Energy and Dominion Energy South Carolina offer net metering programs.
Is solar worth it in South Carolina?
South Carolina combines strong sun hours (5.3/day) with moderate rates (13.5¢/kWh) — a solid case for residential solar in 2026. Use the calculators above for a bill-specific estimate, or open a decision guide below for sizing by monthly bill or home sq ft.
Frequently asked questions
Direct answers for US homeowners in South Carolina.