Solar installations in Marion County, OH
12 recorded installations in Marion County, Ohio — capacity, prices and the installers doing the work.
At a glance
Marion County, Ohio has 12 recorded solar installations totalling 516 kW of capacity — the 74th-highest count among the 88 Ohio counties with records, and under 1% of the state total. That is about 0.04% of the county's 27,381 housing units, against 0.10% statewide.
Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.
Severe-weather exposure: solar sites here have been matched to an average of 1.8 hail and 4.7 high-wind NOAA storm events — a regional inspection/maintenance signal (proximity, not confirmed damage).
Search every recorded installation in Marion County by installer, size, date and equipment.
Search sites →Independent check:Stanford's DeepSolar detected about 73 solar arrays here from 2018 satellite imagery — our recorded data covers roughly 16% of that (this county is under-reported in public program data). A yardstick, not dated records.
Most active
Top installers in Marion County
No resolved installers recorded in this county.
Growth
Installations by year
How does Marion County compare with the rest of Ohio?
The median recorded system in Marion County is 9.93 kW, roughly in line with the state median of 9.6 kW. By share of housing units with a recorded system, Marion County ranks 70th of 77 Ohio counties with at least 10 installations. Fewer than 30 systems here report an installed price, so no county price median is published.
How has solar adoption changed in Marion County?
The earliest recorded installation in Marion County dates to 2010. The busiest year on record is 2014, with 2 installations. 2023 has 1 recorded installation so far. The county's cumulative total rose from 11 at the end of 2018 to 12 today. Recent years fill in as state programs and permit offices report, so the latest counts are provisional.
Frequently asked questions
How many homes have solar in Marion County?
PanelCensus records 12 solar installations in Marion County, Ohio (516 kW of capacity) — about 0.04% of the county's 27,381 housing units (U.S. Census ACS). Coverage depends on Ohio's public reporting, so the true total is likely higher.
How big is a typical solar system in Marion County?
The median recorded system in Marion County is 9.9 kW, against 9.6 kW for Ohio as a whole.
More solar data near Marion County
- Solar in Ohio· 5,248 installations
- Solar installers in Ohio
- Solar in Shelby County· 14 installations
- Solar in Sandusky County· 13 installations
- Solar in Clinton County· 12 installations
- Solar in Morrow County· 11 installations
- Solar in Jackson County· 10 installations
- Solar in Mercer County· 10 installations
County assignment is derived from installation ZIP codes via the Census 2020 ZCTA↔county crosswalk (primary county by land-area overlap) — approximate at county boundaries. Market penetration = recorded installations ÷ housing units (U.S. Census Bureau ACS 5-Year, Table B25001); it undercounts where dataset coverage is partial. See methodology.
About this data
Source: Lawrence Berkeley National Laboratory's Tracking the Sun, merged with city permit records, state incentive programs and the USGS U.S. Large-Scale Solar Photovoltaic Database / EIA-860 plant registers, as published October 10, 2026 — PanelCensus refreshes it as each source publishes new records. See the methodology for how records are matched, cleaned and scored.
Cite as: PanelCensus, “Solar installations in Marion County, Ohio”, https://panelcensus.com/solar/ohio/marion-county (data as of October 10, 2026).