North Carolina Solar Statistics and Market Data

North Carolina ranks among the top five states in the United States for installed solar capacity, a position driven by a combination of state-level policy mandates, utility-scale procurement, and a growing residential market. This page covers the key metrics, market structure, and regulatory context that define the North Carolina solar landscape, including capacity figures, installation trends, economic output, and the policy framework that shapes market behavior. Understanding these data points helps property owners, project developers, and policymakers situate individual decisions within the broader state market.

Definition and scope

Solar market data for North Carolina encompasses installed capacity (measured in megawatts, MW), number of installations by sector, employment figures, investment flows, and policy-driven targets. The Solar Energy Industries Association (SEIA) tracks these figures at the state level in its annual and quarterly market reports, serving as the primary public source for state-level benchmarks.

North Carolina's solar market is segmented into three primary sectors:

Utility-scale solar — Ground-mounted systems typically exceeding 1 MW, procured through utility integrated resource plans (IRPs) or competitive solicitations. Duke Energy Carolinas and Duke Energy Progress are the dominant utilities in this segment.
Commercial and industrial solar — Rooftop or ground-mount systems serving businesses, institutions, and government facilities, generally ranging from 25 kilowatts (kW) to several MW.
Residential solar — Rooftop systems on single-family and multi-family homes, typically ranging from 5 kW to 20 kW.

Scope of this page: This page covers solar market data and statistics applicable to the state of North Carolina. It does not address federal policy mechanisms in detail beyond their interaction with state rules, and it does not cover solar markets in adjacent states such as South Carolina, Virginia, or Tennessee. North Carolina-specific statutes and the rules of the North Carolina Utilities Commission (NCUC) govern the regulatory environment described here. Situations where federal law preempts state authority — such as FERC jurisdiction over wholesale electricity markets — fall outside the coverage of this page.

For a foundational explanation of how solar energy systems function in North Carolina's climate and grid, see How North Carolina Solar Energy Systems Work: Conceptual Overview.

How it works

North Carolina's solar market operates within a policy structure anchored by the state's Renewable Energy and Energy Efficiency Portfolio Standard (REPS), established under North Carolina General Statute § 62-133.8. REPS requires investor-owned utilities to meet 12.5% of retail electricity sales from eligible renewable energy sources by 2021 and thereafter (NC General Statutes § 62-133.8). This mandate has been one of the primary structural drivers of utility-scale solar procurement in the state.

The North Carolina Utilities Commission solar rules govern interconnection standards, net metering caps, and rate structures that directly affect market economics. As of SEIA's 2023 state data, North Carolina had installed more than 8,200 MW of solar capacity, ranking it 4th nationally (SEIA, North Carolina Solar). That capacity is sufficient to power approximately 1.1 million homes, according to SEIA's standard equivalency metrics.

The state's solar irradiance profile — averaging roughly 4.5 to 5.5 peak sun hours per day depending on region — supports viable economics across the piedmont, coastal plain, and portions of the mountain region. For region-specific irradiance data, the solar irradiance and sun hours in North Carolina reference provides detailed breakdowns.

The North Carolina renewable energy portfolio standard page covers the REPS framework and its compliance mechanics in depth.

Common scenarios

North Carolina solar market data intersects with practical decisions in the following scenarios:

Residential market entry: A homeowner evaluating residential solar system sizing in North Carolina will find that the average residential installation in the state has historically ranged between 7 kW and 10 kW. The state's net metering policy, administered through the NCUC and subject to ongoing docket proceedings, affects the financial return on excess generation sent to the grid. See net metering policy in North Carolina for current rules.

Commercial and institutional projects: Businesses, nonprofits, and agricultural operators represent a distinct market segment. Commercial solar systems in North Carolina and agricultural solar in North Carolina outline the scale, permitting, and interconnection considerations relevant to non-residential buyers. Solar for nonprofits in North Carolina addresses the specific incentive structures available to tax-exempt entities.

Incentive stacking: North Carolina property owners can access the federal Investment Tax Credit (ITC), currently set at 30% of eligible system costs under the Inflation Reduction Act (Pub. L. 117-169), alongside a state property tax exemption for the added value of solar equipment (NC General Statute § 105-275(45)) and a sales tax exemption on solar equipment purchases. The North Carolina solar incentives and tax credits page and federal ITC application in North Carolina provide structured breakdowns of these mechanisms. The North Carolina solar property tax exemption and North Carolina solar sales tax exemption pages address each exemption separately.

Workforce and economic output: North Carolina solar employment exceeded 7,000 jobs as of the most recent SEIA/The Solar Foundation data period. The North Carolina solar jobs and workforce page contextualizes employment trends within the broader state energy economy.

Storage integration: The addition of battery storage to solar systems affects both market economics and grid interconnection requirements. Battery storage integration in North Carolina and solar energy storage incentives in North Carolina cover the technical and financial dimensions.

Decision boundaries

Market data functions differently depending on the type of decision being made. The following distinctions define where statistics and benchmarks are most and least applicable:

Utility-scale vs. distributed generation: Utility-scale projects are subject to FERC-regulated wholesale market rules and Duke Energy's competitive procurement processes, making SEIA capacity rankings and MW targets the relevant benchmarks. Distributed generation projects — residential and commercial — are governed by NCUC interconnection rules and net metering tariffs. These two segments should not be analyzed with the same metric set.

State incentive vs. federal incentive eligibility: State exemptions (property tax, sales tax) apply to installations within North Carolina's taxing jurisdiction and are administered by the NC Department of Revenue. Federal incentives such as the ITC apply to federal tax liability and are governed by IRS guidance independent of state rules. A project may qualify for state exemptions but not the federal ITC (for example, a tax-exempt nonprofit entity), or vice versa.

Grid-tied vs. off-grid systems: Market capacity statistics reported by SEIA reflect grid-connected systems only. Off-grid installations, which do not require NCUC interconnection approval, are not captured in standard market data. Grid-tied vs. off-grid solar in North Carolina outlines the technical and regulatory distinction.

Regional performance variation: Market averages mask significant regional variation. Systems in the coastal plain typically outperform mountain installations by 10–15% on an annual energy yield basis due to differences in irradiance and cloud cover. North Carolina coastal solar considerations and North Carolina mountain region solar address these regional factors.

For the full regulatory context governing North Carolina's solar market — including NCUC dockets, interconnection standards, and utility program rules — the regulatory context for North Carolina solar energy systems page provides a structured overview. A complete introduction to the North Carolina solar energy landscape, including market positioning and system types, is available at the North Carolina Solar Authority home.

References

📜 4 regulatory citations referenced · ✅ Citations verified Feb 26, 2026 · View update log