Solar installations in Williamson County, TX
1,140 recorded installations in Williamson County, Texas — 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 Williamson County by installer, size, date and equipment.
Search sites →Independent check:Stanford's DeepSolar detected about 4,717 solar arrays here from 2018 satellite imagery — our recorded data covers roughly 24% 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 | Freedom Solar Power Tx | 80 |
| 2 | Greenbelt Solar | 40 |
| 3 | Freedom Solar | 39 |
| 4 | Lighthouse Solar | 39 |
| 5 | Longhorn Solar | 32 |
| 6 | 512 Solar | 22 |
| 7 | Tesla | 19 |
| 8 | Axis Solar | 14 |
| 9 | Lighthouse Solar Austin | 13 |
| 10 | Hesolar | 12 |
Growth
Installations by year
Frequently asked questions
How many homes have solar in Williamson County?
PanelCensus records 1,140 solar installations in Williamson County, Texas (20.0 MW of capacity) — about 0.45% of the county's 251,600 housing units (U.S. Census ACS). Dataset coverage depends on Texas'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 $3.48/W pre-incentive; the median system runs 7.2 kW.
Who installs solar in Williamson County?
The most active recorded installers in Williamson County are Freedom Solar Power Tx, Greenbelt Solar, Freedom 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.