Ohio Solar Energy Statistics and Market Data
Ohio's solar energy sector has expanded considerably over the past decade, driven by falling installation costs, federal incentive structures, and evolving state policy. This page covers measurable indicators of Ohio's solar market — installed capacity, job figures, cost benchmarks, and policy-linked data — drawing on named public sources to establish a factual baseline for residential, commercial, and utility-scale decision-making.
Definition and scope
Ohio solar energy statistics encompass quantified data points describing the state's photovoltaic (PV) and concentrating solar capacity, workforce, economic contribution, and policy environment. The scope includes residential rooftop installations, commercial and industrial arrays, community solar subscriptions, and utility-scale projects interconnected with the grid operated under Public Utilities Commission of Ohio (PUCO) oversight.
These figures are compiled and published by agencies including the U.S. Energy Information Administration (EIA), the Solar Energy Industries Association (SEIA), the Interstate Renewable Energy Council (IREC), and the National Renewable Energy Laboratory (NREL). For a broader orientation to the state's solar landscape, the Ohio Solar Authority index provides structured entry points to all major topic areas.
Scope limitations: This page addresses Ohio-specific data only. Federal aggregate statistics, neighboring-state comparisons, and offshore or wind-energy data fall outside the coverage boundaries. Legal interpretations of Ohio Revised Code provisions, PUCO tariff filings, and investment advice are not addressed here.
How it works
Solar market data is collected through a layered reporting system. Installers report interconnection applications to Ohio's investor-owned utilities (AEP Ohio, FirstEnergy, Duke Energy Ohio, Dayton Power and Light). Those utilities file interconnection data with PUCO. EIA aggregates state-level generation and capacity figures through its Form EIA-860 (annual generator survey) and Form EIA-923 (power plant operations report), both publicly available.
The principal metrics tracked in Ohio's solar market include:
- Installed capacity (megawatts-DC and megawatts-AC): Total nameplate generating capacity of all operational PV systems in the state.
- Annual generation (megawatt-hours): Electricity produced by solar assets, reported monthly by EIA.
- Number of installations: Total system count segmented by sector (residential, non-residential, utility).
- Average system cost (dollars per watt-DC): Benchmarked quarterly by NREL's U.S. Solar Photovoltaic System and Energy Storage Cost Benchmarks.
- Solar jobs: Employment headcount by county and specialty, published annually by IREC in the National Solar Jobs Census.
- Solar Renewable Energy Certificates (SRECs): Certificate volumes tracked through the PJM-Environmental Information Services (PJM-EIS) Generation Attribute Tracking System (GATS).
Understanding how these metrics interrelate is foundational to interpreting any single data point. Installed capacity does not equal generation; Ohio's latitude, average cloud cover, and seasonal snowfall all create a capacity factor typically ranging from 13% to 17% for fixed-tilt residential systems (NREL PVWatts Calculator). For a deeper technical explanation of how Ohio solar systems convert irradiance to usable power, see How Ohio Solar Energy Systems Work: Conceptual Overview.
Common scenarios
Scenario 1 — Residential capacity benchmarking: A homeowner evaluating a 10 kW rooftop system can compare the proposed cost per watt against NREL's benchmark. As of NREL's Q1 2024 benchmark report, the median residential PV system installed cost in the United States was approximately $3.00 per watt-DC before incentives (NREL Solar PV Cost Benchmarks). Ohio-specific pricing from Solar Panel Costs in Ohio provides a more localized comparison.
Scenario 2 — Utility-scale project tracking: Ohio's utility-scale solar pipeline has grown significantly. According to SEIA's Ohio state profile, Ohio ranked among the top 20 U.S. states for total installed solar capacity, with over 1,400 MW of installed capacity reported as of SEIA's 2023 data (SEIA Ohio Solar). Projects of this scale are regulated under PUCO's certificate of environmental compatibility and public need (CPCN) process; see Regulatory Context for Ohio Solar Energy Systems for the applicable procedural framework.
Scenario 3 — Workforce data for economic impact analysis: The IREC National Solar Jobs Census reported Ohio employed approximately 5,600 solar workers as of its most recent published census. These jobs span installation, manufacturing, sales, and project development. County-level data is accessible through IREC's interactive solar jobs map.
Scenario 4 — SREC market pricing: Ohio utilities subject to the state's renewable portfolio standard (RPS) may purchase SRECs to comply with carve-out requirements. SREC prices fluctuate based on RPS compliance demand and are tracked through PJM-GATS and secondary market platforms. For context on Ohio's SREC framework, see Ohio Solar Renewable Energy Credits.
Decision boundaries
Not all solar statistics carry equal weight for different stakeholder types. The distinctions below clarify which data sources apply to which decisions:
| Stakeholder | Relevant metric | Primary source |
|---|---|---|
| Residential owner | Cost per watt, payback period | NREL benchmarks, SEIA |
| Commercial developer | Capacity factor, PPA pricing | NREL PVWatts, EIA |
| Policy analyst | Installed MW, job counts, RPS compliance | EIA Form 860/923, IREC |
| Utility planner | Interconnection queue, generation MWh | PUCO filings, PJM-EIS |
A key distinction exists between nameplate capacity (DC) and AC output — the inverter clipping ratio typically reduces usable AC power by 80% to 90% of the DC nameplate figure. Comparing systems across states or time periods requires consistent unit conventions. Ohio's net metering compensation rules, governed by PUCO, also affect the economic interpretation of generation data for grid-tied systems.
Statistics describing Ohio's solar resource (peak sun-hours, irradiance) do not account for localized shading, roof orientation, or equipment degradation. NREL's PVWatts tool provides location-specific modeling using NASA Surface Meteorology and Solar Energy data, offering a more reliable output estimate than state-average figures alone.
Data on the Ohio renewable portfolio standard and its solar carve-out thresholds directly affects SREC demand and, by extension, the financial return projections embedded in many market analyses. Any statistical projection that does not account for the RPS compliance schedule will produce unreliable economic estimates.
References
- U.S. Energy Information Administration — Ohio State Energy Profile
- Solar Energy Industries Association — Ohio Solar Policy
- National Renewable Energy Laboratory — PV Cost Benchmarks
- National Renewable Energy Laboratory — PVWatts Calculator
- Interstate Renewable Energy Council — National Solar Jobs Census
- Public Utilities Commission of Ohio (PUCO)
- PJM Environmental Information Services — GATS
- EIA Form EIA-860 Annual Electric Generator Report
- EIA Form EIA-923 Power Plant Operations Report