Is solar worth it in North Carolina?

North Carolina gets good sunshine — about 4.7 peak sun hours a day — and residential electricity runs around $0.13/kWh. For a typical $150-a-month power bill, that points to roughly a 10.1-kW system costing about $30,267 — with no federal tax credit, which ended for installations completed after December 31, 2025 — paying for itself in about 16.8 years and netting on the order of $31,098 over 25 years. Your own numbers will differ — the calculator above uses your real bill.

North Carolina gets good sun and is a major solar state, though residential net metering terms have tightened. Lower rates, and the end of the federal credit, mean payback now leans entirely on right-sizing to your usage.

What changes the math in North Carolina

• Your electricity rate — the more you pay per kWh, the more each solar kWh saves you. North Carolina sits at about $0.13.
• Sun hours — more sun means a smaller, cheaper system covers the same usage. North Carolina averages ~4.7 hours.
• Net metering / buyback — how your utility credits power you export swings the payback; check your specific utility's current terms.
• Install cost — quotes vary by installer and roof; the calculator defaults to a typical $/watt you can override.

North Carolina: the rules that actually decide your payback

Who your utility is, and why it matters

Duke Energy Carolinas and Duke Energy Progress between them serve most of the state, with Dominion Energy North Carolina in the north-east, and a substantial number of electric membership cooperatives and municipal systems elsewhere. The Duke territories are regulated by the North Carolina Utilities Commission; the cooperatives set their own solar terms and often differ materially.

What your exported power is worth

North Carolina has moved off simple retail net metering for new residential solar. The structure approved by the Utilities Commission nets generation against consumption on a monthly basis and applies time-of-use periods, so what your solar is worth now depends on when it is produced relative to the utility's peak windows rather than simply on how much of it there is. Customers already on legacy net metering are grandfathered for a defined period. The practical consequence is that a savings estimate built on a flat annual offset will overstate what a new North Carolina system saves.

The North Carolina incentive layer

This is the thin part. North Carolina's renewable energy tax credit expired in 2015 and was not renewed, and Duke's residential rebate programme has run in limited annual blocks that have been heavily oversubscribed when open. There is a property-tax exclusion for most of the added value. With the federal credit also gone, North Carolina economics now rest almost entirely on the electricity rate and on production — which is why the payback here is longer than the state's good sunshine alone would suggest.

Battery and self-consumption

Monthly netting with time-of-use periods is precisely the structure that makes shifting output valuable: energy exported outside a peak window is worth less than energy you can hold and use inside one. That makes storage more relevant in North Carolina than it was under legacy net metering — though at current battery prices it is a decision to model on your actual rate schedule rather than to assume.

What to check on a North Carolina quote

• Ask which rate structure you would be placed on, whether any grandfathering applies to you, and for how long.
• Insist on a time-of-use-aware savings model. A flat annual offset is not how new North Carolina systems are billed.
• Confirm whether your provider is Duke, Dominion, a cooperative or a municipal system — the co-ops write their own rules.
• Do not count a Duke rebate until it is confirmed in writing; the blocks are limited and open only periodically.
• Because the incentive layer is thin, push hardest here on installed cost per watt — with fewer subsidies in play, price is most of the negotiation.

Programme and tariff detail above is summarised from North Carolina Utilities Commission — Duke Energy net metering. Last reviewed 20 August 2026 by SolarDime editorial. These rules change — confirm the current terms with your utility and the regulator before you sign.