Solar panels in South Carolina
What a residential solar system actually costs in South Carolina in 2026 — plus incentives, payback, and how to pick a vetted installer.
The real cost of solar in South Carolina
A typical 10.5 kW rooftop system in South Carolina runs about $29,400 installed. The federal Residential Clean Energy Credit knocks 30% off — around $8,820 — bringing the net price to roughly $20,580.
South Carolina adds its own incentive: 25% state tax credit (carryover 10 yrs). Stack that on top of the federal credit.
What you'll produce — and save
- ~15,330 kWh/year from a 10.5 kW system at 5.0 peak sun hours.
- At 14.4¢/kWh that's $2,208/yr off your electric bill in year one.
- Estimated payback: 9.3 years.
- 25-year net savings (2.5% annual rate escalation): $54,840.
Estimates only. Actual production depends on roof orientation, shade, equipment and your utility's specific tariff.
Net metering in South Carolina
South Carolina operates under a net billing policy for residential solar exports. Exports are credited at a wholesale/avoided-cost rate rather than the retail rate. Batteries usually improve payback under this policy.
Top South Carolina metros we cover
FAQ
How much do solar panels cost in South Carolina?
A typical 10.5 kW residential system in South Carolina costs about $29,400 before incentives, or roughly $2.80 per watt installed. After the 30% federal tax credit that drops to about $20,580.
Is solar worth it in South Carolina?
With an average residential electricity rate of 14.4¢/kWh and 5.0 peak sun hours per day, a properly sized system typically pays for itself in about 9.3 years and saves roughly $54,840 over 25 years.
Does South Carolina have net metering?
South Carolina operates under a net billing policy for residential solar exports. Exact credit values vary by utility — always confirm with the specific utility serving your address.
What state incentives are available in South Carolina?
State incentive: 25% state tax credit (carryover 10 yrs). Property tax exemption: No. Sales tax exemption: No. The 30% federal Residential Clean Energy Credit also applies.
Get vetted South Carolina installer quotes.
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Sources: EIA average residential electricity rates, NREL PVWatts sun hour data, DSIRE state incentive database, LBNL "Tracking the Sun" installed-cost benchmarks. Figures are estimates for guidance only, not a binding quote.