North Carolina has strong solar resources and a mature installer market, but the incentive and net metering rules have changed. Duke Energy customers now need to compare current net metering riders, confirm PowerPair eligibility before relying on it, and size systems around direct home use instead of assuming old full-retail export credits.
What residential solar installation involves
A solar company assesses your roof orientation, shading, and electricity use to size a system. Panels are mounted on your roof, wired to an inverter, and connected to your home's electrical system and the grid. Your county requires both an electrical permit and a building permit; your installer handles both.
The process from contract to system live typically takes four to eight weeks, mostly permit processing and utility interconnection paperwork. The installation itself usually takes one to two days.
Costs in North Carolina
The main cost variables:
- System size. Sized in kilowatts based on your electricity consumption, roof space, export rate, and whether you are adding a battery.
- Roof condition and complexity. Steep pitches, multiple angles, or roofs that need repair add cost. South-facing roofs with minimal shading are the most efficient.
- Inverter type. String inverters are less expensive. Microinverters and power optimizers are more expensive but perform better under partial shading.
- Battery storage. Adding a home battery changes the design and incentive picture. If you add solar and battery together, ask whether the project can qualify for Duke Energy PowerPair and whether capacity is available.
Incentives available for solar in NC
The federal residential clean energy credit (Section 25D) expired at the end of 2025 and is no longer available for new installations. The current incentives worth knowing about:
- Duke Energy PowerPair. Solar-plus-battery projects may qualify if they meet Duke Energy's equipment, Trade Ally, rider, and capacity rules.
- NC tax provisions. Solar equipment and residential solar property have specific treatment under NC tax law. Confirm how those rules apply to your quote and county.
For the full picture on current NC solar incentives, read the NC Solar Incentives guide. If you're wondering what happened to the 30% federal credit, see What happened to the federal solar tax credit?
Duke Energy net metering
Both Duke Energy Progress and Duke Energy Carolinas have revised net metering options for new residential solar customers. Exports are no longer a simple full-retail one-for-one credit for new systems, so your installer should model Rider NMB and Rider RSC for your address.
For a plain-English source on the current structure, see the NC Public Staff net metering summary.
HOA approval
About 26% of NC homeowners live under an HOA. NC law protects your right to install solar even if your HOA would prefer you didn't — any covenant that prohibits solar outright is void under G.S. § 22B-20. HOAs can require pre-approval and set placement rules, but they can't block solar entirely or require placement that prevents reasonable use. For a full walkthrough of the law, what HOAs can and can't require, and how to navigate the approval process, read the NC HOA solar guide.