Solar Panel Cost in North Carolina: $2.35/W, 21.4-Yr Payback

Solar in North Carolina costs about $18,800 for 8 kW at $2.35/W and pays back in roughly 21.4 years at 15.2¢/kWh with the federal credit at $0.

Updated September 2026 · Source: EIA Electric Power Monthly Table 5.6.A (July 2026 data) · next EIA update ~Oct 23

By SolarCostData Data Desk · Reviewed September 2026 · Corrections log

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Why this number

Solar panels in North Carolina cost about $2.35 per watt — $18,800 for a typical 8 kW system — and pay back in roughly 21.4 years at the state’s 15.2¢/kWh average rate, with the 2026 federal credit at $0. Net billing pays exports below retail here.

Everything below uses North Carolina’s real average residential electricity rate (15.2¢/kWh, EIA) and a production band of about 1,375 kWh per kW per year. Both are stated openly because they are the two inputs that decide the answer. These are estimates for sanity-checking a quote, not a quote.

Run it with your own numbers

Why North Carolina’s payback lands where it does

North Carolina’s rate jumped about thirteen percent this year, from 13.37 cents per kilowatt-hour in July 2025 to 15.2 cents this July, though that still only lifts the state to rank 35 — one of the cheaper grids nationally. Good sun, with yield at 1,375 kilowatt-hours per installed kilowatt, isn’t enough to overcome such a low starting rate, and the payback comes in around 21.4 years. Duke Energy Carolinas, the largest utility with over 1.9 million residential customers, prices at 13.9 cents, well under the state average, so its customers should expect a payback longer than the statewide 21.4-year figure. North Carolina compensates exports under net billing rather than full retail, so the sharp year-over-year rate increase moves the economics mainly by raising the value of self-consumed power, not exported power, even from one of the lowest rate bases in the model.

Electric utilities in North Carolina

The state average hides real spreads between utilities. The largest residential utilities EIA-861 lists for North Carolina, with each one’s own average bundled residential price (2024 — revenue ÷ sales, the audited annual figure, not this month’s tariff):

Your utility decides North Carolina’s real number — the ZIP lookup finds it in three clicks; the 2024 annual utility averages above sit apart from the June-2026 monthly 15.2¢ state figure.

North Carolina’s rate, the last 24 months

July 2025 → July 2026: 13.37¢ → 15.16¢. The rate tracker has every month against the US average.

An 8 kW system in North Carolina, priced out

The $2.35/W used above comes from EnergySage marketplace quotes (August 2026). Those are quotes in a competitive online market, not signed contract prices.

Read that table with one caveat: $2.35/W is North Carolina’s market average, and it is the input most likely to differ for you. A quote $0.50 per watt above or below the $2.35 used here moves the payback by roughly a year and a half in either direction.

How much sun North Carolina actually gets

A kilowatt of panels in North Carolina produces about 1,375 kWh a year on an unshaded, south-facing roof at a 20-degree pitch. Sites that swap North Carolina’s 1,375 kWh for a single national average are how Arizona and Washington end up with identical paybacks despite a 1.6x real difference in output.

That figure is a five-point cluster around North Carolina’s largest metro area, which keeps it representative of where most people actually live rather than of the state’s best site.

City-level figures for North Carolina

We have separately modeled production for 2 North Carolina cities, and they are 0% apart — Raleigh at 1,424 kWh per kW against Charlotte at 1,431. Installed cost held at $2.35/W; paybacks use each city’s own utility tariff and export treatment where we have official EIA-861 data, which is why some differ sharply from this page’s state-average model.

• Charlotte — 1,431 kWh per kW, payback about 22.3 years (on its own utility’s tariff)
• Raleigh — 1,424 kWh per kW, payback about 20.3 years (on its own utility’s tariff)

Those are real PVGIS-NSRDB location points, not the state figure scaled by guesswork. All North Carolina and other city figures .

Two adjustments matter before you apply this to your own roof:

• Shading and orientation. The 1,375 kWh figure assumes an unobstructed south-facing array. A real North Carolina roof — its own azimuth and pitch, a tree or a chimney — typically produces 10-25% less; this page models 90% of the ideal, so the 9,900 kWh/year above is already derated from 11,000. A genuinely unshaded south roof can adjust upward in the calculator.
• Year-to-year weather moves output by roughly ±5% either way.

How North Carolina compares with the other 49

North Carolina ranks 35th of 50 on electricity price and 35th on annual output value per kW installed — close enough that its rate is a fair proxy for its solar case, which is not true everywhere. Its immediate neighbors on price are Kansas (15.3¢) just above and Florida (15.0¢) just below.

Kansas is North Carolina’s closest comparable-rate analogue — 15.3¢/kWh, roughly 1,455 kWh per kW, and a payback within about a year of this one (22.1 vs 21.4 years). If you find North Carolina quotes hard to sanity-check, Kansas numbers are broadly transferable.

Net billing: the rule that decides solar in North Carolina

North Carolina does not credit exports at the retail rate — this is net billing , not net metering. The program is Residential Solar Choice (RSC), in force since 2023-10-01, and it credits surplus power at an assumed 4.5¢/kWh, about 30% of retail, because no per-kWh figure is published — against a retail rate of 15.2¢.

Because a typical North Carolina home uses only about 40% of its generation as it is produced, most of what the panels make is sold at 4.5¢. That is why the payback above is 21.4 years rather than the 12.3 years the same hardware would return under full-retail net metering. Raising self-consumption — a battery (worth its own arithmetic: is a home battery worth it? ), an EV charged in daylight, daytime occupancy — is the lever that closes the gap. Whether a North Carolina buyer should own a battery or take a lease/TPO deal is priced in the battery buy vs. TPO calculator .

One limit worth knowing: this reflects investor-owned, state-regulated utilities; North Carolina’s municipal utilities and co-ops are exempt in most cases and set their own terms.

What is actually left in North Carolina

The 30% federal credit ended for systems completed after December 31, 2025, so it is $0 here as everywhere. What remains is state, utility and local — and it varies far more than the federal rule ever did.

Do not budget for Residential solar tax credit. Expired.

Tax exemptions

Property tax is fully exempt on the added value, so the system does not raise your assessment.

If that list looks thin, it is — the solar incentives hub shows which states still put real money on the table, and where North Carolina sits among them.

Is solar worth it in North Carolina at 15.2¢/kWh?

North Carolina is close to the national middle on both inputs, which makes it the state where the quote matters most. At 15.2¢ and 1,375 kWh per kW there is no margin from geography to absorb an expensive installer.

At a horizon that long, owning the roof is not the only route to cheaper power. Community solar versus rooftop walks through the subscription alternative — no roof, no loan, and no 21.4-year wait — which is worth reading before committing capital in a market like North Carolina’s.

If you want a fast gut check before running the numbers above, the should-I-go-solar screener asks the four questions that matter most in a mid-rate state like North Carolina.

Two numbers put that in context. At North Carolina’s rate, the electricity an 8 kW system would produce is worth about $870 a year, so the system costs roughly 21.6 years of that output to buy outright — a simple division, before costs. The headline 21.4-year figure above is the full model: it additionally counts 2.5%/yr rate inflation, $150/yr of running costs and one inverter replacement, which is why the two differ slightly. And doing nothing is not free: 25 years of that same electricity, with rates rising at 2.5% a year, comes to about $51,271.

For a 15-year payback in North Carolina — given its sunshine rather than a national average — the electricity rate would need to be about 13.2¢/kWh. North Carolina is at 15.2¢, which is above that line.

Sources and method

• Electricity rate: U.S. Energy Information Administration, average price by state — EIA Table 5.6.A, July 2026 data (released Sep 2026). Rate shown is North Carolina’s residential average.
• Production: PVGIS v5.2 with the PVGIS-NSRDB radiation database, 1,375 kWh/kW for a five-point cluster around North Carolina’s largest metro, then the 90% real-roof factor; the assumptions, the ERA5 cross-check and the attribution are on the methodology page .
• Incentives: DSIRE — Database of State Incentives for Renewables & Efficiency, NC Clean Energy Technology Center. Verify current amounts and fund status before relying on them.
• Federal credit status: IRS, Residential Clean Energy Credit . See our 2026 energy tax credit guide .
• Payback model: shared with the solar savings calculator — 2.5%/yr utility inflation, 0.5%/yr degradation, federal credit $0.

North Carolina’s rate (15.2¢, EIA Table 5.6.A, July 2026 data (released Sep 2026)), export regime, production factor, installed cost and programs were last verified on 25 September 2026; North Carolina’s export credit resets on its tariff cycle and incentive budgets run out mid-year, so confirm current terms before acting. Not tax or financial advice.

Frequently asked questions

How we calculated this

Worked for North Carolina: 8 kW × 1,000 × $2.35/W = $18,800 gross (federal credit $0, so net before state incentives); 9,900 kWh a year × the blended kWh value at 15.2¢ retail and 4.5¢ export ≈ $870 year-1 saving; payback ≈ $18,800 ÷ $870 = 21.4 years with 2.5%/yr rate growth, 0.5%/yr degradation and one inverter replacement in the 25-year model.

Sources: U.S. Energy Information Administration (EIA) electricity rates · DSIRE incentive records · public IRS/OBBBA guidance. Figures are modeled estimates, not quotes or tax advice. See our methodology.

States with a comparable tariff picture

• Why is my electric bill so high? — Splits a bill jump into weather, rate and usage — with North Carolina’s own EIA rate history built in.
• Electricity rate tracker — North Carolina’s last 24 months of EIA rates, charted against the US average.
• Find your rate by ZIP — North Carolina averages hide utility gaps — look yours up from EIA-861 in three clicks.
• Net metering by state (2026 table) — Every state’s export regime with program, date and source — the rule behind North Carolina’s payback.
• Solar panel cost in Kansas — Same export regime at 15.3¢/kWh and a 22.1-year payback — the closest tariff comparison to North Carolina.
• Solar panel cost in Arizona — Same export regime at 15.4¢/kWh and a 16.9-year payback — the closest tariff comparison to North Carolina.
• Solar panel cost in South Carolina — Same export regime at 15.5¢/kWh and a 22.6-year payback — the closest tariff comparison to North Carolina.