Solar in North Carolina: A Top-Five State With a Catch

North Carolina consistently ranks in the top five states for installed solar capacity. That surprises people who assume solar is a California and Arizona story. NC's success was built on a strong renewable energy standard, utility-scale solar farms, and historically decent incentives.

But here is the catch — most of that top-five ranking comes from massive utility-scale installations in rural areas, not residential rooftops. And the residential incentive landscape has thinned considerably. Here is where things stand for homeowners in 2026.

The Good News

Good Solar Resource

North Carolina averages 4.5-5.2 peak sun hours per day. The coastal plain and Piedmont region (Raleigh, Charlotte, Fayetteville) get the best production. Even the western mountains average 4.3-4.6 hours. This is above the national average and puts NC in solid solar territory.

Net Metering (With Caveats)

Duke Energy Carolinas and Duke Energy Progress — the dominant utilities — offer net metering for residential systems up to 1 MW. You receive credit at the full retail rate for excess generation. Credits roll over month to month.

However, Duke has been pushing to modify net metering terms, and the NC Utilities Commission has approved time-of-use rate structures that can affect solar economics. The direction is toward more complex rate structures where the time you export matters as much as the volume. South-facing systems that produce peak power during midday still fare well, but the era of simple 1:1 net metering may evolve.

Property Tax Exemption

North Carolina exempts 80% of the appraised value added by a solar installation from property taxes. On a system that adds $20,000 in home value, you avoid property taxes on $16,000 of that amount. With NC property tax rates averaging 0.8-1.0%, this saves $128-$160 per year.

Strong Installer Market

NC's history as a top solar state means a deep installer market with competitive pricing. More competition means better quotes. The per-watt cost in NC tends to be $0.10-$0.20 lower than in states with fewer installers.

The Challenges

No State Tax Credit

North Carolina's state solar tax credit expired in 2016 and has not been renewed. That credit was 35% of system cost (capped at $10,500 for residential) and was one of the most generous in the country. Its absence, combined with the expired federal ITC, means homeowners pay full price in 2026.

The loss of the NC state credit is the single biggest change in the state's solar economics over the past decade.

Duke Energy Rate Complexity

Duke's evolving rate structures include time-of-use (TOU) plans, demand charges for some customers, and proposed solar-specific rates. Understanding which rate plan you are on — and which you should switch to before going solar — is critical. A bad rate plan can reduce your net metering value by 20-30%.

Ask your installer to model your savings under multiple Duke rate plans. If they cannot do this, find an installer who can.

No SREC Market

North Carolina does not have an SREC market. Unlike DC, New Jersey, or Maryland, you do not earn tradeable certificates for your solar production. Your financial return comes entirely from electricity bill savings.

The North Carolina Solar Math (2026)

Typical 8kW system:

• Installed cost: $24,000 ($3.00/watt — competitive NC market)
• Federal ITC: $0 (expired January 1, 2026)
• State tax credit: $0 (expired 2016)
• Sales tax: NC charges sales tax on solar equipment
• Net cost: ~$24,000

Annual production: ~10,800 kWh

Average Duke Energy rate: $0.13-$0.15/kWh

Annual savings: $1,404-$1,620

Payback period: 15-17 years at flat rates, 12-14 years with 4% annual rate increases

25-year savings: $16,000-$28,000

NC's competitive installation costs help offset the lack of incentives. The per-watt price here is lower than many states, which shortens the payback compared to what the incentive picture might suggest.

With no state or federal tax credit to lean on, getting the lowest possible per-watt price is the single most important factor in your payback. Comparing quotes from multiple NC installers is the best way to do that.

When Solar Makes Sense

Install if:

• Your Duke Energy bill is $140+ monthly
• You plan to stay in your home 10+ years
• Your roof has strong south-facing exposure
• You are in the Piedmont or coastal plain with 4.8+ peak sun hours
• You want to lock in energy costs before Duke's next rate increase

Wait or skip if:

• Your bill is under $90/month
• You plan to sell within 5 years
• Your roof needs replacement in the next few years
• You are in a heavily shaded mountain location
• You are waiting for a potential state credit reinstatement (do not hold your breath)

Key Takeaways

• NC ranks top five nationally in solar capacity, mostly from utility-scale projects
• Full retail net metering through Duke Energy is the primary economic driver for residential
• No state or federal tax credit in 2026 — the generous 35% NC credit expired in 2016
• Competitive installer market keeps per-watt costs lower than many states ($3.00/watt)
• Duke's evolving rate structures require careful analysis — model savings under multiple plans
• North Carolina averages 4.5-5.2 peak sun hours — above the national average
• Typical payback: 12-17 years with 25-year savings of $16,000-$28,000
• 80% property tax exemption provides modest ongoing savings

North Carolina solar in 2026 is not the no-brainer it was a decade ago with the 35% state credit. But the state's excellent installer competition keeps prices lower than most, and Duke Energy's full retail net metering still delivers real savings. If you are in the Piedmont or coastal plain with a south-facing roof and a meaningful electricity bill, the math works — you just need realistic expectations about a 12-17 year payback horizon.

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