Solar Panel Cost in South Carolina (2026)
Solar panel costs in South Carolina depend on system size, roof type, local labor rates, and your utility's net metering rules. In South Carolina, a typical 6 kW residential system runs $11,550–$20,440 before incentives, with 30% federal tax credit reducing net cost to about $8,080–$14,310. Average electricity rate: 13.5¢/kWh.
Quick answer
In South Carolina, a 6 kW solar panel system costs about $14,850 installed (8.6-year payback). After the 30% federal tax credit, net cost is roughly $10,400. Annual savings: ~$1,210/year at 13.5¢/kWh.
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Estimate for South Carolina
$6,900 net after tax credit
~4 kW system · $9,900 before 13.5¢/kWh incentives
Annual savings
$804
Payback
8.6 years
30-year savings
$21,708
South Carolina vs US Average
| Metric | SC | US avg |
|---|---|---|
| 6 kW system (before credit) | $14,850 | $16,271 |
| Net cost after 30% ITC | $10,400 | $11,390 |
| Cost per watt | $2.48/W | — |
| Annual electricity savings | $1,210 | $1,335 |
| Payback period (years) | 8.6 yrs | 9 yrs |
| Electricity rate | 13.5¢/kWh | — |
Updated 2026-07-07. Estimates only.
What affects solar costs in South Carolina?
- Installer pricing in South Carolina averages $2.48/watt — below the US median
- 4.8 peak sun hours/day drives production and payback speed
- Federal Investment Tax Credit (ITC) covers 30% of system cost through 2032 for qualifying homeowners
- South Carolina utility rates at 13.5¢/kWh affect monthly bill savings
Solar installation costs in South Carolina reflect local labor rates, permit fees, and utility interconnection rules. A typical 6 kW system runs $11,550–$20,440 before the 30% federal tax credit, with net cost around $8,080–$14,310.
South Carolina averages 13.5¢/kWh and 4.8 peak sun hours per day — moderate solar production potential for rooftop systems.
Incentives in South Carolina
South Carolina homeowners may qualify for the 30% federal ITC plus any active state or utility rebates. Verify current programs at dsireusa.org before signing a contract.
How to maximize solar ROI in South Carolina
- Compare at least three installer quotes in South Carolina
- Model payback using your actual utility rate and usage
- Ask whether net metering or buyback rates apply in your utility territory
- Confirm ITC eligibility with a tax professional
South Carolina install costs average $2.48/W with estimated 8.6-year payback on a 6 kW system — below US national averages.
Cost snapshot — SC
- 6 kW system
- $11,550 – $20,440
- After 30% tax credit
- $8,080 – $14,310
- Annual savings
- $990 – $1,390
- Battery add-on
- $6,080 – $10,940
Frequently Asked Questions
How much do solar panels cost in South Carolina?
A 6 kW solar system in South Carolina typically costs $11,550–$20,440 installed. After the 30% federal tax credit, net cost is about $8,080–$14,310. Cost per watt ranges from $2.1–$2.92.
What is the solar payback period in South Carolina?
In South Carolina, estimated payback is 6.4–12.1 years for a 6 kW system, with an average around 8.6 years. Higher electricity rates and sun exposure shorten payback.
How much can I save on electricity in South Carolina?
A 6 kW system in South Carolina may save $990–$1,390 per year on electricity, depending on usage, shading, and net metering. Over 25–30 years, cumulative savings can reach $24,750–$41,700.
Is solar worth it in South Carolina in 2026?
Solar in South Carolina is worth evaluating if you pay 13.5¢/kWh or more, have a south-facing roof with minimal shade, and plan to stay in your home past the payback period (~8.6 years). Use our calculator for a personalized estimate.
Related solar resources
How We Calculate Solar Costs
MySunROI estimates combine NREL residential PV installed-price benchmarks, EIA state electricity rates, and regional labor modifiers — updated 2026-07-07.
Estimates for informational purposes only. Last updated 2026-07-07. Estimates based on NREL PV cost benchmarks, EIA electricity rates, and 2026 installer pricing surveys.