Solar installations in Sonoma County, CA
38,058 recorded installations in Sonoma 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 0 hail and 1 high-wind NOAA storm events — a regional inspection/maintenance signal (proximity, not confirmed damage).
Search every recorded installation in Sonoma County by installer, size, date and equipment.
Search sites →Independent check:Stanford's DeepSolar detected about 18,216 solar arrays here from 2018 satellite imagery — our recorded data covers roughly 209% of that. A yardstick, not dated records.
Most active
Top installers in Sonoma County
| # | Installer | Installs here |
|---|---|---|
| 1 | Sunrun | 5,283 |
| 2 | Tesla | 3,738 |
| 3 | Northern Pacific Power | 2,228 |
| 4 | Sunpower | 1,017 |
| 5 | Solar Works | 1,000 |
| 6 | Rockin Roofers | 963 |
| 7 | Solarcraft Services | 875 |
| 8 | Suntegrity Solar | 768 |
| 9 | Synergy Solar | 699 |
| 10 | Freedom Forever | 670 |
Growth
Installations by year
Frequently asked questions
How many homes have solar in Sonoma County?
PanelCensus records 38,058 solar installations in Sonoma County, California (427.6 MW of capacity) — about 18.4% of the county's 206,319 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 Sonoma County?
The median installed price for recorded systems in Sonoma County is $4.62/W pre-incentive; the median system runs 5.6 kW.
Who installs solar in Sonoma County?
The most active recorded installers in Sonoma County are Sunrun, Tesla, Northern Pacific Power.
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.