South Carolina vs North Carolina Solar Incentives: Which State Gets the Better Deal?
Side-by-side comparison of South Carolina and North Carolina solar incentive programs in 2026: state tax credits, net metering rules, exemptions, payback period, and projected 25-year savings.
| Metric | SC · South Carolina | NC · North Carolina |
|---|---|---|
| Avg Monthly Bill | $170 | $165 |
| Peak Sun Hours / Day | 5 | 5 |
| Avg $/Watt Installed | $2.85 | $2.85 |
| State Tax Credit | 25% / $3500 ◆ | None |
| Net Metering | retail | retail |
| SREC Market | No | No |
| Property Tax Exempt | No | Yes |
| Sales Tax Exempt | No | No |
| Payback, pre-credit model (yrs) | 7.9 ◆ | 8.1 |
| 25-yr savings, pre-credit model | $40,200 ◆ | $38,900 |
Payback and 25-year savings were modeled while the federal residential credit applied. They are not a 2026 quote. The calculator uses $0 federal credit and state incentives only.
State Tax Credit Comparison
South Carolina offers a 25% state income tax credit (capped at $3,500). North Carolina offers no state income tax credit.
Net Metering Policies
South Carolina: retail rate net metering active. North Carolina: retail rate net metering active.
Net metering is often the most economically significant solar policy because it determines how excess production is valued. Retail-rate states (where you receive full retail price for exported energy) have substantially better solar economics than avoided-cost or no-net-metering states.
Average 25-Year Savings
South Carolina: $40,200 over 25 years (avg payback 7.9 yrs). North Carolina: $38,900 over 25 years (avg payback 8.1 yrs).
Verdict: Which State Wins on Solar?
South Carolina edges out North Carolina on lifetime savings primarily due to more generous state tax credits.
Note: state averages mask significant within-state variation. Your specific utility, roof orientation, and household electricity profile drive your actual numbers — use the calculator to model your home directly.