Solar resource
Your solar production in Charlotte
4.63 avg peak sun hours/day
Monthly avg solar radiation (kWh/m²/day) — Austin, TX. Bars update to show estimated kWh production when you use the calculator above.
Utility rate
Duke Energy Carolinas electricity rate
$0.1187/kWh residential
- Utility
- Duke Energy Carolinas
- Residential rate
- $0.1187/kWh (blended)
Duke Energy Carolinas provides net metering for residential solar under NC Utilities Commission rules. Excess solar exported to the grid is credited at the full retail rate and rolls forward monthly, with an annual true-up. North Carolina is ranked #2 in the US for total installed solar capacity (SEIA 2024), driven in large part by Duke Energy's service territory.
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Incentives
Available solar incentives in Charlotte, NC
Federal + state + utility
| Incentive | Type | Value | Scope |
|---|---|---|---|
| Federal Solar Investment Tax Credit (ITC) | Tax Credit | 30% of system cost | Federal |
| Duke Energy Carolinas Net Metering | Net Metering | Retail-rate bill credit for exported solar (~$0.1187/kWh) | Utility |
| NC Solar Property Tax Exemption | Exemption | 100% of added home value from solar | State |
| NC Sales Tax Exemption for Solar Equipment | Exemption | Exempt from NC state and local sales tax (6.75–7.25%) | State |
Incentive amounts and eligibility rules change. Verify current terms with your installer and a tax professional before installation.
System cost
Cost breakdown (6 kW default)
- Gross system cost
- $22160
- Federal ITC (30%)
- −$6648
- Net system cost
- $15,512
- Installed cost per watt
- $2.77/W
Lawrence Berkeley National Laboratory Tracking the Sun 2024 — Southeast median installed cost for residential systems 3–10 kW
Payback & long-term value
25-year outlook
- Annual savings (yr 1)
- $1,282
- Simple payback period
- 12.1 years
- 25-year net savings
- $16538
- Assumed annual rate increase
- 2.0%/year
25-year estimate uses flat electricity rate for conservative baseline. Accounting for 2.0% annual rate increases, lifetime savings increase substantially.
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How it works
How solar savings work in Charlotte
- Your panels capture sunlight Solar panels convert sunlight into DC electricity. Charlotte averages 4.63 peak sun hours per day — meaning your panels produce at or near their rated capacity for about 4.6 hours each day on average. North Carolina ranks #2 in the US for installed solar capacity, so the grid infrastructure and installer ecosystem here are well-developed.
- An inverter converts DC to AC A solar inverter converts DC power from your panels into the AC electricity your home uses. Modern string inverters and microinverters achieve 96–99% conversion efficiency. Premium monocrystalline panels — the default for Charlotte estimates — offer higher efficiency per square foot than standard modules.
- You use solar power instead of buying from the grid Every kilowatt-hour (kWh) your system produces during daylight reduces what you buy from Duke Energy Carolinas at $0.1187/kWh. An 8 kW system produces about 10,800 kWh/year in Charlotte — enough to cover roughly 75–90% of a typical home's annual electricity use.
- Excess power flows back to Duke Energy's grid When your panels produce more than your home uses — common on sunny spring and summer afternoons — excess electricity flows to Duke Energy's grid. Under NC net metering rules, Duke Energy credits your bill at the full retail rate (~$0.1187/kWh), rolling those credits forward each month to offset higher-usage periods like summer.
- You claim the federal tax credit and state exemptions In the tax year your system is installed, you claim a 30% federal Investment Tax Credit on the full installed cost. On a $22,160 system, that's $6,648 off your federal taxes — reducing net cost to $15,512. NC's sales tax exemption on solar equipment and property tax exemption on added home value provide additional savings that aren't reflected in the headline payback number.
- Your savings grow over time As Duke Energy's rates rise (historically ~2%/year), your solar savings increase while your system cost stays fixed. Over 25 years, an 8 kW system in Charlotte nets roughly $16,500 after repaying the installation cost — while also protecting you from future rate increases.
FAQ
Common solar savings questions for Charlotte, NC
How much can I save with solar panels in Charlotte, NC?
An 8 kW system — typical for a Charlotte home — produces about 10,800 kWh/year and saves approximately $1,282/year at Duke Energy Carolinas' current blended rate of $0.1187/kWh. After the 30% federal tax credit, the net system cost is around $15,512, with a payback period of about 12 years and 25-year net savings near $16,500.
Is North Carolina a good state for solar?
Yes — North Carolina ranks #2 in the US for total installed solar capacity, behind only California (SEIA 2024). Charlotte averages 4.63 peak sun hours per day, and the state offers strong incentives: the 30% federal ITC, a property tax exemption on solar-added home value, a sales tax exemption on solar equipment, and Duke Energy Carolinas' retail-rate net metering program.
Does North Carolina have a state solar tax credit?
No. North Carolina's 35% state solar tax credit expired in 2015 and was not renewed. However, NC residents still benefit from the 30% federal Investment Tax Credit (ITC), a property tax exemption on the increased home value from solar (NC G.S. § 105-277.3), and a sales tax exemption on solar equipment (NC G.S. § 105-164.13). Combined, these incentives meaningfully reduce the net cost.
How does Duke Energy net metering work in Charlotte?
Duke Energy Carolinas offers net metering for residential solar systems up to 1,000 kW under NC Utilities Commission rules. When your panels produce more power than your home uses, the excess flows to the grid and Duke Energy credits your bill at the full retail rate (~$0.1187/kWh). Credits roll forward monthly and are reconciled annually. You must apply for interconnection through Duke Energy before installation.
How much does a solar system cost in Charlotte?
An 8 kW system in Charlotte costs approximately $22,160 before incentives ($2.77/watt installed, per Lawrence Berkeley Lab 2024 Southeast data). After the 30% federal Investment Tax Credit ($6,648), the net cost is about $15,512. NC's sales tax exemption on solar equipment provides an additional reduction not included in this estimate. Prices vary by installer, equipment tier, and roof complexity.
Does solar add value to my home in Charlotte?
Yes. Studies consistently show solar adds 3–4% to home resale value. In Charlotte, an 8 kW premium system typically adds $20,000–$28,000 in appraised value. Under NC G.S. § 105-277.3, that entire added value is exempt from Mecklenburg County property taxes — so you gain the home value benefit without the ongoing tax cost.
How many solar panels do I need for my Charlotte home?
A typical Charlotte home using 900–1,200 kWh/month needs a 7–10 kW system (roughly 18–25 premium panels at 375–400 W each). Use the calculator above to enter your monthly bill and get a system size estimate tailored to your usage. Duke Energy's average residential customer in NC uses about 1,100 kWh/month.
How does the federal solar tax credit work?
The federal Investment Tax Credit (ITC) lets you deduct 30% of your total solar installation cost from your federal income taxes in the year the system is installed and placed in service. It's a dollar-for-dollar reduction in taxes owed — not a refund — so you need sufficient tax liability to use it. Any unused credit can carry forward to the following year. The 30% rate applies through 2032 under the Inflation Reduction Act.
Do I need a permit to install solar panels in Charlotte?
Yes. Solar installations in Charlotte require an electrical permit and typically a building permit from Charlotte-Mecklenburg Building Standards. Your solar installer will usually pull the required permits as part of the installation process and coordinate the required inspections. Duke Energy's interconnection application is a separate step that must be completed before grid tie-in.
Sources
Data sources and freshness
- https://pvwatts.nrel.gov/
- https://openei.org/apps/USURDB/
- https://www.duke-energy.com/home/products/solar-energy/solar-for-your-home
- https://www.ncleg.gov/EnactedLegislation/Statutes/HTML/BySection/Chapter_105/GS_105-277.3.html
- https://www.ncleg.gov/EnactedLegislation/Statutes/HTML/BySection/Chapter_105/GS_105-164.13.html
- https://emp.lbl.gov/tracking-the-sun
- https://www.energy.gov/eere/solar/homeowners-guide-federal-tax-credit-solar-photovoltaics
- https://www.seia.org/state-solar-policy/north-carolina-solar
- https://dsireusa.org/
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Disclaimer: This calculator provides estimates for informational purposes only — not financial or investment advice. Solar savings depend on actual shading, roof orientation, energy usage patterns, rate changes, and equipment performance. Consult a licensed installer and a tax professional before making purchasing decisions. Verify incentive eligibility with official sources. Data last verified 2026-04-16.