Solar installations in San Joaquin County, CA
69,144 recorded installations in San Joaquin County, California — capacity, prices and the installers doing the work.
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 hail and 1 high-wind NOAA storm events — a regional inspection/maintenance signal (proximity, not confirmed damage).
Search every recorded installation in San Joaquin County by installer, size, date and equipment.
Search sites →Independent check:Stanford's DeepSolar detected about 32,873 solar arrays here from 2018 satellite imagery — our recorded data covers roughly 210% of that. A yardstick, not dated records.
Most active
Top installers in San Joaquin County
| # | Installer | Installs here |
|---|---|---|
| 1 | Sunrun | 15,486 |
| 2 | Tesla | 8,738 |
| 3 | Sunpower | 5,430 |
| 4 | Bright Ops | 2,613 |
| 5 | Infinity Energy | 1,727 |
| 6 | Freedom Forever | 1,631 |
| 7 | Sonray Construction | 1,291 |
| 8 | Empower Electric | 978 |
| 9 | American Array Solar | 885 |
| 10 | Citadel Roofing And Solar | 840 |
Growth
Installations by year
Frequently asked questions
How many homes have solar in San Joaquin County?
PanelCensus records 69,144 solar installations in San Joaquin County, California (761.5 MW of capacity) — about 26.9% of the county's 256,826 housing units (U.S. Census ACS). Dataset coverage depends on California's reporting programs, so the true total is higher.
How much does solar cost in San Joaquin County?
The median installed price for recorded systems in San Joaquin County is $4.27/W pre-incentive; the median system runs 5.8 kW.
Who installs solar in San Joaquin County?
The most active recorded installers in San Joaquin County are Sunrun, Tesla, Sunpower.
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.