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Updated / NC residential estimate

North Carolina solar panel cost calculator

Estimate system size, panel count, gross cost, annual production, and savings using defaults for North Carolina. Enter an address or ZIP Code below to replace them with live location data.

Moderate solar resource and cooling demand can work well, while tree shading and changing net metering rules deserve close review.

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State data baseline

Planning sun hours
4.7 hours/dayState planning default used when API data is unavailable.
PVWatts annual yield
1,282 kWhPer 1 kW system at 20% loss. Solar resource: 5.16 kWh/m²/day; 14.6% capacity factor.
EIA residential rate
$0.1474/kWhLatest state average: 2026-06.
API baseline location
Raleigh, NC 27601, USA35.7744, -78.6314
Location APIGoogle Geocoding API
Electricity APIEIA Open Data API v2
Production APINLR PVWatts v8

Server-side API snapshot, refreshed monthly. All three providers returned external data.Data sources and update notes

Decision brief

What changes the decision in North Carolina

These state-specific checks are not included in a generic national quote. Resolve them before comparing payback claims. Supporting rules and official references are collected at the end of this page.

  1. 01Before you sign

    Start with the serving utility class

    Duke Energy, Dominion, a municipal utility, and an electric cooperative may not offer the same solar tariff. Confirm jurisdiction and schedule before modeling exports.

  2. 02Before you sign

    Apply for the 80% property exclusion

    The statute excludes 80% rather than 100% of qualifying appraised value, and § 105-282.1 lists the application requirement for this class.

  3. 03Before you sign

    Treat tree shading as a site variable

    The statewide PVWatts baseline assumes an unshaded array. Ask for a roof-plane shade report and the production impact by month.

Verified state policy

What can reduce your cost in North Carolina

Review these 3 statewide or utility-level policy signals before comparing net cost. They are not automatically applied because eligibility, tax liability, utility territory, equipment, and program capacity can change.

Policy configuration verified .

Policy sources
Eligibility applies01
Duke Energy PowerPair pilot

Up to $9,000

This is not statewide: it is limited to eligible Duke Energy Carolinas and Duke Energy Progress customers installing approved solar plus battery equipment, subject to pilot capacity.

Eligibility applies02
Solar property-value exclusion

80% of appraised solar value

The owner generally must apply for the exclusion. The remaining 20% of qualifying solar equipment value can remain taxable.

Eligibility applies03
Utility-specific solar tariff

No single statewide export percentage

Investor-owned, municipal, and cooperative utilities use different residential solar schedules. The serving utility determines the credit method.

Calculation walkthrough

How we calculate for North Carolina

A worked example using this page's baseline assumptions. Calculator results above change when you edit the inputs.

Baseline inputs

Illustrative 1,000 kWh/month household

Solar resource
4.390 peak sun hours/day
Modeled system loss
20% loss / 80% delivered
Household electricity use
12,000 kWh/year
Energy value
$0.1474 retail / $0.04 export
  1. 01

    Annual output per 1 kW

    Location and production losses

    4.390 h/day × 365 days × 80% delivered

    1,282 kWh/year

  2. 02

    Required system capacity

    Annual demand divided by output

    12,000 kWh ÷ 1,282 kWh per kW

    9.36 kW

  3. 03

    Energy-based panel count

    Rounded up; entered usable roof area can cap the result

    9.36 kW ÷ 0.4 kW per panel → round up

    24 panels

    9.6 kW

  4. 04

    Estimated first-year value

    Retail offset plus export credit

    12,000 kWh × $0.1474 + 306 kWh × $0.04

    $1,781/year

Model notes and limitationsSources and scope

Production baseline

NLR PVWatts v8 modeled a 1 kW array at 20° tilt and 180° azimuth for Raleigh, NC 27601, USA.

Energy valuation

Self-consumed production offsets the retail rate. Production above annual use is valued at the configured export rate; utility tariffs may use different timing or settlement rules.

Not included

Roof shading, structural conditions, hourly tariffs, financing, maintenance, incentives, and tax eligibility require separate verification.

North Carolina FAQ

Data updated: 2026-08-11. API baseline: Google Geocoding API, EIA Open Data API v2, and NLR PVWatts v8. Policy assumptions should be verified before purchase using the sources below.

Sources & verification

Review the original API, statute, regulator, or program documentation before relying on an estimate for a purchase, tax filing, or contract.

Data sources

Geocoding, residential electricity rates, and solar production inputs.

3 sources · Updated 2026-08-11

State rules

Official references behind the state-specific decision checks.

3 primary references

Incentives

Tax, rebate, and compensation sources used for policy summaries.

3 policy sources · Reviewed Aug 11, 2026