Solar installations in Union County, IL
121 recorded installations in Union County, Illinois — 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 Union County by installer, size, date and equipment.
Search sites →Most active
Top installers in Union County
No resolved installers recorded in this county.
Growth
Installations by year
Frequently asked questions
How many homes have solar in Union County?
PanelCensus records 121 solar installations in Union County, Illinois (3.5 MW of capacity) — about 1.5% of the county's 7,861 housing units (U.S. Census ACS). Dataset coverage depends on Illinois's reporting programs, so the true total is higher.
How much does solar cost in Union County?
Not enough priced records in this county to compute a reliable median.
Who installs solar in Union County?
No resolved installers recorded in this county.
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.