Solar installations in Washington County, OR
602 recorded installations in Washington County, Oregon — 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 Washington County by installer, size, date and equipment.
Search sites →Independent check:Stanford's DeepSolar detected about 5,901 solar arrays here from 2018 satellite imagery — our recorded data covers roughly 10% of that (this county is under-reported in public program data). A yardstick, not dated records.
Most active
Top installers in Washington County
| # | Installer | Installs here |
|---|---|---|
| 1 | Tesla | 120 |
| 2 | Blue Raven Solar | 67 |
| 3 | Dpi Solar Dynamic Power Innovation | 21 |
| 4 | Infinity Solar Systems | 19 |
| 5 | Sunbridge Solar | 15 |
| 6 | Earthlight Technologies | 15 |
| 7 | Ion Solar | 14 |
| 8 | Elemental Energy | 12 |
| 9 | Mr Sun Solar | 11 |
| 10 | Livelight Energy | 9 |
Growth
Installations by year
Frequently asked questions
How many homes have solar in Washington County?
PanelCensus records 602 solar installations in Washington County, Oregon (13.0 MW of capacity) — about 0.25% of the county's 240,409 housing units (U.S. Census ACS). Dataset coverage depends on Oregon's reporting programs, so the true total is higher.
How much does solar cost in Washington County?
The median installed price for recorded systems in Washington County is $4.35/W pre-incentive; the median system runs 6.4 kW.
Who installs solar in Washington County?
The most active recorded installers in Washington County are Tesla, Blue Raven Solar, Dpi Solar Dynamic Power Innovation.
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.