North Carolina has good solar potential — 4.9 daily peak sun hours — but no state-level solar income tax credit since the program expired in 2015. Solar economics rely on the federal 30% ITC and net metering (where available). Duke Energy Carolinas and Dominion Energy NC offer net metering at retail rate; some utilities have shifted to less-favorable tariffs.
Use the calculator below — your state is already selected. Adjust your monthly electric bill and system cost for a North Carolina-specific payback estimate.
Solar Payback Calculator (by State)
Estimate your system size, total cost after incentives, and break-even year for residential solar.
Estimated payback period
—
Select your state to get a precise estimate.
System size
—
25-year savings
—
Net cost after credits
—
Year-1 savings
—
Cost breakdown
| Net out-of-pocket | $0 |
Estimates only. Real solar quotes depend on your roof, shading, local installer pricing, utility net-metering policy, and your specific tax situation for the federal credit. Not financial advice.
Cumulative savings vs. system cost
When the green line crosses the dashed cost line, you’ve broken even.
NC solar specifics
1. Federal 30% ITC
Standard.
2. No state income tax credit
The NC Renewable Energy Tax Credit expired in 2015 for residential. Solar economics depend on federal + NEM.
3. Net metering (varies)
Duke Energy Carolinas and Progress Energy: retail-rate net metering for systems under 20 kW. Dominion Energy NC: similar. Some smaller utilities have shifted to value-of-solar tariffs.
4. Property tax exemption
NC excludes 80% of added solar value from property tax assessment for residential systems.
5. Sales tax exemption
NC solar PV equipment is sales-tax-exempt.
2026 NC solar economics
- Gross system cost (7 kW): $19,600
- Federal 30% ITC: -$5,880
- Net cost: $13,720
- Annual production: ~12,200 kWh
- Annual savings at $0.135/kWh × 90% NEM: ~$1,482
- Simple payback: ~9.3 years
How to use the North Carolina solar calculator above
- The state is pre-selected. Adjust if needed.
- Enter your typical monthly electric bill (averaged across the year).
- The calculator auto-fills your state's average electricity rate and peak sun hours — override the electricity rate with your real $/kWh from your bill if you know it.
- Adjust the system cost per watt based on quotes from local installers. North Carolina averages are typically within the $2.50–$3.50/W range for cash installs.
- The output shows estimated system size, net cost after federal and state credits, year-1 savings, and 25-year cumulative savings.
Related
- Main Solar Payback Calculator (all 50 states)
- Solar Tax Credit 2026 — full explainer
- Heat Pump vs Gas Furnace Calculator
- All CalcCottage calculators
Reviewed by the CalcCottage editorial team. Updated May 14, 2026. Estimates only — not financial advice. Verify current incentives at DSIRE.org before installing.
Solar payback in other states
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming