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Solar Panel Cost in South Carolina
6 kW system cost and incentives for South Carolina homeowners.
By Jessica Martinez · Updated June 20266 kW system cost and incentives for South Carolina homeowners.
By Jessica Martinez · Updated June 2026A 6 kW home solar system in South Carolina runs about $17,100 before incentives. For South Carolina homeowners, the 30% federal tax credit brings that to roughly $11,970 out of pocket, a difference of about $5,130.
South Carolina gets solid sun hours and installer competition has kept prices reasonably stable. South Carolina adds a state income tax credit of 25% of system cost, capped at $35,000. The solar cost calculator and system size calculator can turn that into a figure based on your actual South Carolina bill.
| System size | 6 kW |
|---|---|
| Price before incentives | $17,100 |
| 30% federal tax credit | -$5,130 |
| Price after credit | $11,970 |
System size in South Carolina should track your electricity use, not a flat 6 kW default. Run your zip code and monthly bill through the system size calculator to see how many panels your South Carolina home actually needs.
The 30% federal Residential Clean Energy Credit applies to any South Carolina homeowner who owns their system outright (see the tax credit calculator). Actual South Carolina pricing still comes down to your roof, your installer, and the quotes you collect. Model your full South Carolina picture in the savings calculator.
How much does a 6 kW solar system cost in South Carolina? A 6 kW residential system in South Carolina runs about $17,100 before incentives and about $11,970 after the 30% federal tax credit, a difference of roughly $5,130.
Does South Carolina have solar incentives beyond the federal credit? Local South Carolina installers can confirm what applies to your specific address and roof. Check the incentives section above for how that applies to your South Carolina system.
Is 6 kW the right system size for your South Carolina home? It depends on your bill and roof. Use the system size calculator to size a system around your actual South Carolina electricity use rather than a flat 6 kW figure.
run your own South Carolina numbers in the cost calculatorestimate South Carolina payback in the savings calculatorcheck your South Carolina federal credit amountsee installed prices in Rhode Islandcompare South Carolina costs to South Dakota