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Is plug-in solar legal in North Carolina?
- Introduced
- Passed one chamber
- Passed both chambers
- Signed
- In effect
What this means for you
✓ What you can do
- Apply for interconnection like any small generator (Inverter Process <=20 kW), typical fee $100.
- Use portable panels with a power station, never connected to house wiring, with no permission at all.
- Install conventional rooftop or ground-mount solar through the standard interconnection process.
✕ Not yet / not allowed
- Plug a grid-tied kit into an outlet without an interconnection agreement; it can breach your service terms.
- Expect a permit or wiring exemption; none exists without a law.
- Count on HB 1129 this year: Filed 4/29/2026; House Rules 4/30/2026; no action.
What the rules say
North Carolina's bills remain in committee; Duke Energy interconnection rules apply.
Before you plug in: North Carolina checklist
- The rule that applies is North Carolina Utilities Commission's interconnection process: NC Interconnection Standard (Inverter Process / Fast Track / Study).
- A plug-in kit falls in the smallest tier (Inverter Process <=20 kW). $100 (<=20 kW; some forms $200).
- Permits: 2020 NEC; licensed contractor or owner-occupant with permit.
- Only consider kits with a UL 1741-listed inverter (UL 3700 preferred); a non-listed inverter will not be approved anywhere.
- What exports are worth: Bridge Rate net billing through 12/31/2026, then Residential Solar Choice (TOU-CPP).
- If approval is slow or costly, a portable panel and power station (never connected to house wiring) needs no permission.
- Watch HB 1129 / SB 957: Filed 4/29/2026; House Rules 4/30/2026; no action.
The rules in detail
North Carolina has no statute specific to plug-in solar (the only bill so far is H 1129 / S 957). Average residential electricity price: 15.16¢ per kWh (EIA, July 2026).
- Bill status: in committee.
- Utilities: Bright Saver: in progress; Solar.com: stalled.
Your utility's rules in North Carolina
No utility in North Carolina publishes a rule that specifically allows or bans outlet-connected generation, so the general interconnection agreement is what applies. Here is what the largest residential utilities say and require.
| Utility | Residential customers | Published position on plug-in kits |
|---|---|---|
| Duke Energy Carolinas | 1,919,372 | No specific statement. |
| Duke Energy Progress | 1,356,079 | No specific statement. |
| EnergyUnited EMC | 121,995 | No specific statement. |
| Dominion Energy NC | 108,656 | No specific statement. source |
Interconnection terms for a sub-1.2 kW system
| Regulator | North Carolina Utilities Commission. |
|---|---|
| Governing rule | NC Interconnection Standard (Inverter Process / Fast Track / Study). |
| Smallest tier | Inverter Process <=20 kW. |
| Application fee | $100 (<=20 kW; some forms $200). |
| Electrician / permit | 2020 NEC; licensed contractor or owner-occupant with permit. |
| Export compensation | Bridge Rate net billing through 12/31/2026, then Residential Solar Choice (TOU-CPP). |
| Electrical code | 2020 NEC (eff. 11/1/2021; 2023 pending). |
- SB 957 has Republican cosponsors and 1,920 W cap - likeliest 2027 vehicle.
- Bridge Rate closes 12/31/2026.
Plug-in solar bills in North Carolina, 2025–2026
| Bill | Sponsor | Status | What it would do |
|---|---|---|---|
| HB 1129 | Rep. Rubin (primary); Cook, Harrison, Cervania + 12 | Filed 4/29/2026; House Rules 4/30/2026; no action. | Balcony Solar, 1,200 W. |
| SB 957 | Sen. Mayfield (D) primary; Sens. Moffitt (R), Lazzara (R); cosponsors Adcock, Salvador | Filed 4/30/2026; Senate Rules 5/4/2026; no action. | Portable-Scale Solar Energy Devices; 1,920 W cap; 15-day NCUC notice form. |
State incentives
- Property-tax exclusion G.S. 105-275(45).
- No credit or sales-tax exemption.
Who is pushing for a law
- NC Sustainable Energy Association
- SELC
- Vote Solar
- SACE
- Bright Saver
Savings preview: 800 W kit in North Carolina
Adjust for your setup →≈ $136/year
Frequently asked questions
Is plug-in solar legal in North Carolina?
Not yet. A plug-in solar bill (H 1129 / S 957) has been introduced in North Carolina but has not become law.
Do I need a permit or electrician for plug-in solar in North Carolina?
Default. Check with your local building department before you plug in.
Do I have to tell my utility in North Carolina?
Default. Plugging in a grid-tied kit without following this can breach your service agreement.
What can an 800 W plug-in kit save in North Carolina?
Roughly 896 kWh and about $136 per year at North Carolina's average residential rate of 15.16¢/kWh, assuming a typical balcony or patio mount. See the calculator for your exact setup.