Solar Panels in Knightdale, NC: Cost, Payback & Savings
A typical 9.2 kW home solar system in Knightdale costs about $37,720 and pays for itself in about 16.9 years, saving roughly $23,026 over 25 years at North Carolina's average electricity price of 14.9¢/kWh.
Monthly solar production in Knightdale
Estimated output of a 9.2 kW south-facing roof system. Jun is the strongest month (1,258 kWh); Dec the weakest (736 kWh).
Solar production (kWh) Typical home use, 1,015 kWh/month
Solar payback calculator for Knightdale
Pre-filled with Knightdale's sunshine and North Carolina's average electricity price. Enter your own bill and an installer's price per watt to see your payback.
Leave export credit blank where the utility offers full net metering. Where exports earn less, solar used at home as it's produced is worth the full price and the rest earns the export credit.
How Knightdale compares
- Each kW of panels here produces about 1,382 kWh a year — 4% less than the North Carolina median and about the same as the US median city (1,371 kWh).
- Payback ranks #82 of 95 North Carolina places we cover.
- Sunshine varies little across a state; electricity price, installed cost and how utilities credit exported power drive most of the difference between states.
Net metering, tax credits and incentives in 2026
North Carolina offers net metering: power you send to the grid is credited at or near the retail price, so every solar kWh is valued at 14.9¢ here.
There is no federal tax credit for buying home solar installed in 2026. The 30% Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, so the costs and paybacks on this page include no federal credit.
North Carolina and local utilities may still offer rebates, performance payments, property-tax or sales-tax exemptions. Search the DSIRE incentives database for North Carolina and ask installers which programs they apply for you.
Frequently asked questions
Is solar worth it in Knightdale, NC?
For a typical home, a solar system pays for itself in about 16.9 years and then keeps saving money. Over 25 years the estimated net savings are $23,026. Verdict: slow payback. Your own payback depends on your roof, your bill and the quotes you get.
How many solar panels do I need in Knightdale, NC?
A home using 1,015 kWh a month (the North Carolina average) needs about 23 panels of 400 W — a 9.2 kW system — to cover its annual use. Divide your own yearly kWh by 1,382 to get the kW you need.
How much do solar panels cost in Knightdale, NC?
At 4.10 dollars per watt, a 9.2 kW system costs about $37,720 before any state or utility incentives. There is no federal tax credit for systems installed in 2026.
How much sun does Knightdale get?
Knightdale averages 5.2 peak sun hours per day, so each kilowatt of panels produces about 1,382 kWh a year.
Does North Carolina have net metering?
Yes. Power sent back to the grid is credited at or near the retail price (14.9¢ per kWh on average).
How much does electricity cost in North Carolina?
Residential electricity in North Carolina averages 14.9¢ per kWh, and a typical home uses 1,015 kWh a month (EIA).
Solar payback in nearby places
- Raleigh16.9 yrs
- Garner16.3 yrs
- Clayton16.4 yrs
- Wake Forest17.0 yrs
- Cary17.2 yrs
- Morrisville17.0 yrs
- Smithfield16.2 yrs
- Apex16.5 yrs