Solar installations in Williamson County, TN
4 recorded installations in Williamson County, Tennessee — capacity, prices and the installers doing the work.
Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.
† Tennessee is under-reported. Public solar data is incomplete statewide, so this 0.00% homes-with-solar figure is a floor — the true rate is higher. See the coverage scorecard.
Search every recorded installation in Williamson County by installer, size, date and equipment.
Search sites →Independent check:Stanford's DeepSolar detected about 257 solar arrays here from 2018 satellite imagery — our recorded data covers roughly 2% of that (this county is under-reported in public program data). A yardstick, not dated records.
Most active
Top installers in Williamson County
| # | Installer | Installs here |
|---|---|---|
| 1 | Patrick Nelligan | 1 |
| 2 | LIGHTWAVE SOLAR LLC | 1 |
| 3 | MORGAN ELECTRIC CO INC | 1 |
| 4 | SALERNO, TROY ELECTRIC | 1 |
Growth
Installations by year
Frequently asked questions
How many homes have solar in Williamson County?
PanelCensus records 4 solar installations in Williamson County, Tennessee (109 kW of capacity) — about 0.00% of the county's 94,418 housing units (U.S. Census ACS). Dataset coverage depends on Tennessee's reporting programs, so the true total is higher.
How much does solar cost in Williamson County?
The median installed price for recorded systems in Williamson County is $2.50/W pre-incentive; the median system runs 13 kW.
Who installs solar in Williamson County?
The most active recorded installers in Williamson County are Patrick Nelligan, LIGHTWAVE SOLAR LLC, MORGAN ELECTRIC CO INC.
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.