Solar installations in Marathon County, WI
291 recorded installations in Marathon County, Wisconsin — capacity, prices and the installers doing the work.
Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.
Search every recorded installation in Marathon County by installer, size, date and equipment.
Search sites →Independent check:Stanford's DeepSolar detected about 174 solar arrays here from 2018 satellite imagery — our recorded data covers roughly 167% of that. A yardstick, not dated records.
Most active
Top installers in Marathon County
| # | Installer | Installs here |
|---|---|---|
| 1 | North Wind Renewable Energy | 94 |
| 2 | Olson Solar Energy | 61 |
| 3 | Full Spectrum Solar | 23 |
| 4 | Photovoltaic System | 14 |
| 5 | Everlight Solar | 11 |
| 6 | Atlas Electric Control | 11 |
| 7 | All Energy Solar | 9 |
| 8 | Eland Electric | 5 |
| 9 | Independent Energy Systems | 2 |
| 10 | Ltl Led | 2 |
Growth
Installations by year
Frequently asked questions
How many homes have solar in Marathon County?
PanelCensus records 291 solar installations in Marathon County, Wisconsin (6.8 MW of capacity) — about 0.48% of the county's 60,296 housing units (U.S. Census ACS). Dataset coverage depends on Wisconsin's reporting programs, so the true total is higher.
How much does solar cost in Marathon County?
The median installed price for recorded systems in Marathon County is $3.23/W pre-incentive; the median system runs 7.9 kW.
Who installs solar in Marathon County?
The most active recorded installers in Marathon County are North Wind Renewable Energy, Olson Solar Energy, Full Spectrum Solar.
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.