Why North Carolina Is a Top-5 Solar State in America
North Carolina ranks 4th in the United States for total installed solar capacity, according to the Solar Energy Industries Association (SEIA). As of 2026, the state has over 10,000 MW of installed solar capacity, enough to power more than 1.2 million homes.
The primary driver of North Carolina's solar success is not residential rooftop solar (though that market is growing), but rather large-scale utility solar farms. Companies like Duke Energy, Apple, Google, and Amazon have invested billions in solar projects across the state, particularly in rural areas where land is affordable and sunlight is abundant.
However, for homeowners, North Carolina remains highly attractive due to:
- Strong net metering policy – State law requires utilities to offer net metering, crediting solar exports at the full retail rate.
- 26% state tax credit – North Carolina offers a personal income tax credit of 26% of the cost of a solar system, up to $3,500 (DSIRE, 2026).
- 217 sunny days per year – Above the national average of 205 days.
- Reasonable installation costs – At $2.49/watt, NC is below the national average of $2.86/watt.
- Duke Energy's $0.13/kWh rates – Moderate electricity rates mean solar savings accumulate steadily over time.
Understanding North Carolina's Electricity Rates in 2026
North Carolina's electricity rates are moderate compared to the national average. As of 2026, the statewide average is approximately $0.13/kWh, according to the U.S. Energy Information Administration (EIA).
However, rates vary significantly depending on your utility and rate schedule:
1. Duke Energy Carolinas (Western & Central NC)
Duke Energy Carolinas serves approximately 1.8 million customers in North Carolina. Their 2026 residential rate is approximately $0.125/kWh (including generation, transmission, and distribution charges). A typical household using 1,100 kWh per month pays about $137.50 before taxes and fees.
Duke Energy Carolinas also offers time-of-use (TOU) rates in some areas, which can benefit solar owners who use electricity in the evening after solar production declines.
2. Duke Energy Progress (Eastern & Coastal NC)
Duke Energy Progress serves approximately 1.3 million customers in eastern North Carolina, including the Raleigh-Durham area and the Outer Banks. Their 2026 residential rate is approximately $0.135/kWh, slightly higher than Duke Energy Carolinas due to different infrastructure costs.
A typical household in the Duke Energy Progress territory using 1,100 kWh per month pays about $148.50 per month.
3. Dominion North Carolina Power (Northeastern NC)
Dominion Energy serves approximately 125,000 customers in northeastern North Carolina (Elizabeth City, Nags Head, Kill Devil Hills). Their 2026 residential rate is approximately $0.115/kWh, the lowest among North Carolina's major utilities.
4. Electric Cooperatives & Municipalities
Many rural areas in North Carolina are served by electric cooperatives (such as EnergyUnited, Randolph Electric, and Brunswick Electric) or municipal utilities (such as Fayetteville Public Works Commission and Greenville Utilities Commission). Rates vary but typically range from $0.11–$0.14/kWh.
North Carolina Net Metering Policy in 2026
North Carolina state law (NCUC Order) requires all electric utilities to offer net metering to customers with renewable energy systems up to 1 MW in capacity. This means:
- When your solar panels produce more electricity than your home uses, the excess is sent to the grid and your meter runs backward.
- When your panels aren't producing (at night), you draw electricity from the grid and your meter runs forward.
- At the end of the month, you are billed only for your net consumption (total consumption minus total solar production).
- If you produced more than you consumed, you receive a credit at the full retail rate (approximately $0.13/kWh for Duke Energy customers) that carries forward to the next month.
Important note about annual reconciliation: In North Carolina, net metering credits accumulate monthly but are reconciled annually (typically in March or April). If you have excess credits after 12 months, the utility buys them back at a wholesale rate (typically $0.03–$0.05/kWh), which is much lower than the retail rate. Therefore, it's important to size your system appropriately to avoid large annual payouts at wholesale rates.
Despite this limitation, North Carolina's net metering policy remains among the best in the Southeast, where many states (such as Alabama and Tennessee) offer no net metering at all or provide only minimal credits.
North Carolina Solar Incentives & Tax Credits in 2026
In addition to the 30% federal tax credit (which applies to all U.S. solar installations), North Carolina offers a state tax credit that significantly reduces the effective cost of solar:
1. North Carolina State Tax Credit (26%)
North Carolina offers a personal income tax credit equal to 26% of the cost of a solar system, up to a maximum credit of $3,500 per tax return. This is one of the most generous state-level solar incentives in the United States.
Example calculation:
- 7 kW system at $2.49/watt = $17,430 total cost
- Federal tax credit (30%) = $5,229
- NC state tax credit (26%, capped at $3,500) = $3,500
- Net cost after incentives = $8,701
This combination of federal and state incentives reduces the effective cost of solar in North Carolina by more than 50%, making payback periods as short as 9–12 years realistic for many homeowners.
2. Property Tax Exemption
North Carolina provides a property tax exemption for solar energy equipment. This means that the added value of a solar system will not increase your property tax assessment. For a typical system that adds $15,000 to your home's value, this exemption saves approximately $150–$300 per year in property taxes (assuming a 1–2% property tax rate).
3. Sales Tax Exemption
Solar energy equipment purchased for use in North Carolina is exempt from state sales tax (currently 4.75%, plus local sales taxes that can bring the total to 6.75–7.5%). This saves approximately $1,000–$1,300 on a typical 7 kW system.
4. Duke Energy Solar Rebate Program
Duke Energy previously offered a solar rebate program that provided up to $1,000 for residential solar installations. As of 2026, this program has expired for new applicants, but customers who applied before the deadline may still be eligible for rebates. Check with Duke Energy for the latest information.
Real-World Case Study: David's 7 kW System in Cary, NC
To illustrate what a typical North Carolina solar installation looks like, here's a case study based on a real homeowner (name changed for privacy):
David's situation (Cary, NC – Duke Energy Progress territory):
- Home: 2,200 sq ft single-family home built in 2005
- Monthly electricity bill: $145 (1,070 kWh per month)
- Roof: South-facing, 8/12 pitch, no shading from trees
- System installed (March 2026): 7 kW (20 × 350W panels)
- Total cost: $17,430 ($2.49/watt)
- After federal tax credit (30%): $12,201
- After NC state tax credit (26%, capped at $3,500): $8,701
First 3 months of production (March–May 2026):
| Month | Solar Production (kWh) | Electricity Usage (kWh) | Net Grid Draw (kWh) | Bill After Solar |
|---|---|---|---|---|
| March 2026 | 820 | 950 | 130 | $17.55 |
| April 2026 | 950 | 1,020 | 70 | $9.45 |
| May 2026 | 1,050 | 1,100 | 50 | $6.75 |
David's savings in the first 3 months:
- Without solar: $145 × 3 = $435
- With solar: $17.55 + $9.45 + $6.75 = $33.75
- Net savings: $401.25 in 3 months ($1,605/year projected)
David's system is on track to pay for itself in approximately 5.4 years ($8,701 net cost ÷ $1,605 annual savings), after which all solar production is essentially free electricity.
David's advice for North Carolina homeowners: "Don't wait for prices to drop further. The 30% federal tax credit and 26% state tax credit are too good to pass up. My system will pay for itself in 5 years, and after that, it's pure savings for 20+ years."
Factors That Affect Your Solar Savings in North Carolina
1. Roof Orientation & Shade
North Carolina's latitude (34–36°N) means that south-facing panels with a 30–40° tilt angle capture the maximum annual sunlight. However, east- or west-facing panels can still produce 80–85% of south-facing output, which may be acceptable depending on your electricity usage patterns.
Shade from trees, chimneys, or neighboring buildings can significantly reduce production. In North Carolina, where summer air conditioning loads are high, losing 20% of production to shade can cost you $200–$300 per year in lost savings.
2. Duke Energy Rate Schedules
Duke Energy offers several rate schedules, some of which may affect your solar savings:
- Residential Service (default) – Flat rate, approximately $0.13/kWh. Best for most solar owners.
- Time-of-Use (TOU) – Higher rates during peak hours (2–6 PM weekdays), lower rates at night and on weekends. Can benefit solar owners who use electricity in the evening.
- Electric Vehicle (EV) Rate – Lower off-peak rates for EV charging. If you have an EV and charge at night, this rate may be advantageous even with solar.
3. System Size & Net Metering Reconciliation
As mentioned earlier, North Carolina's annual net metering reconciliation means that excess credits are paid out at wholesale rates. To maximize savings, size your system to cover 90–100% of your annual consumption, but not significantly more. Oversizing your system may result in giving away free electricity to the utility at the end of the year.
4. Panel Degradation & Warranty
Most solar panels sold in North Carolina come with a 25-year performance warranty that guarantees at least 80–85% of original production in year 25. Premium panels (such as those from SunPower, LG, or REC) degrade at 0.3% per year, while standard panels degrade at 0.5% per year. Over 25 years, the difference in total production can be 5–10%, which translates to $1,500–$3,000 in additional savings for premium panels.
North Carolina Solar Installers: What to Look For
North Carolina has a thriving solar installation market, with over 400 licensed solar contractors operating in the state (NC Licensing Board for General Contractors, 2026). However, not all installers are equal. Here are key factors to consider:
- NC Licensing Board certification – Ensure your installer has a valid NC contractor license and is certified for solar PV installation.
- Experience with local utilities – An installer familiar with Duke Energy's interconnection process can save you weeks of delays.
- Workmanship warranty – At least 10 years on labor and roof penetrations. Panels and inverters have manufacturer warranties, but you need protection against installation defects.
- Local presence – Choose an installer with a physical office in North Carolina, not a traveling sales team from out of state. You want someone local who will be available for warranty service and maintenance.
Environmental Impact: North Carolina's Solar Transformation
Beyond financial savings, installing solar in North Carolina contributes to the state's transition away from coal and natural gas. As of 2026:
- North Carolina's solar farms have displaced approximately 8 million metric tons of CO₂ emissions per year, equivalent to taking 1.7 million cars off the road (NREL, 2026).
- The solar industry employs over 10,000 North Carolinians, from manufacturing to installation to operations and maintenance (SEIA, 2026).
- Duke Energy has committed to net-zero carbon emissions by 2050, and residential solar is a key part of that strategy. By installing solar, you're helping North Carolina meet its clean energy goals.
Data Sources & Methodology
This North Carolina solar calculator and article are based on the following authoritative sources:
- U.S. Energy Information Administration (EIA) – North Carolina electricity rates (2026)
- Solar Energy Industries Association (SEIA) – North Carolina solar market data (2026)
- Database of State Incentives for Renewables & Efficiency (DSIRE) – North Carolina tax credits and net metering policy
- National Renewable Energy Laboratory (NREL) – PVWatts solar production estimates for North Carolina locations
- Duke Energy – Residential rate schedules and net metering policy (2026)
- NC Licensing Board for General Contractors – Solar contractor licensing requirements
Calculator Methodology: Our savings estimates use the 25-year cash flow model with the following assumptions: 3.5% annual electricity inflation, 0.5% annual panel degradation, $500/year maintenance costs (inverter replacement in year 15), and North Carolina's 26% state tax credit (capped at $3,500). Your actual savings may vary depending on your specific utility rates, roof characteristics, and equipment choices.
Frequently Asked Questions About Solar in North Carolina
It depends on your priorities. North Carolina has reliable grid infrastructure compared to other states, so backup power is less critical than in California or Texas. However, battery storage (such as the Tesla Powerwall or Enphase IQ) can provide peace of mind during rare outages and allow you to maximize self-consumption if Duke Energy changes its net metering policy in the future. As of 2026, batteries add $10,000–$15,000 to system cost but may become more economical as prices decline.
Yes, but there are additional considerations. Manufactured homes often have older electrical panels that may need upgrading to handle solar. Additionally, if your manufactured home is in a park where you don't own the land, you'll need written permission from the park owner. Some North Carolina installers specialize in manufactured home solar and can help navigate these requirements.
North Carolina law (N.C. Gen. Stat. § 105-277.21) exempts 100% of the appraised value of a solar energy system from property taxation. This applies to both residential and commercial systems. To claim the exemption, you must file Form AV-10 with your county tax assessor by January 31 of the tax year. The exemption applies to the solar equipment only, not to any increase in home value due to solar.
Studies show that homes with solar panels sell for 4–6% more than comparable homes without solar (Lawrence Berkeley National Laboratory, 2026). In North Carolina's hot housing market, solar can be a significant selling point. If you still owe money on a solar loan, you'll typically need to pay off the loan at closing or transfer it to the buyer (with lender approval). Leased systems are more complicated and may require buying out the lease or finding a buyer willing to assume the lease.
Explore Solar Calculators for Other States
Every state has different electricity rates, incentives, and net metering policies. Compare your North Carolina savings with neighboring states:
- South Carolina Solar Calculator – Compare Duke Energy Progress rates across state lines
- Georgia Solar Calculator – See how Georgia Power's rates compare to NC
- Tennessee Solar Calculator – Tennessee has no state tax credit
- Virginia Solar Calculator – Virginia's net metering policy differs from NC
Or view our complete list of solar calculators by state to find your location.