Solar installations in Washington County, AR
34 recorded installations in Washington County, Arkansas — capacity, prices and the installers doing the work.
At a glance
Washington County, Arkansas has 34 recorded solar installations totalling 18.5 MW of capacity — the 3rd-highest count among the 48 Arkansas counties with records, and 1% of the state total. That is about 0.03% of the county's 103,174 housing units, against 0.18% statewide.
Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.
† Arkansas is under-reported. Public solar data is incomplete statewide, so this 0.03% homes-with-solar figure is a floor — the true rate is higher. See the coverage scorecard.
Severe-weather exposure: solar sites here have been matched to an average of 6 hail (2.6 severe) and 5.7 high-wind NOAA storm events — a regional inspection/maintenance signal (proximity, not confirmed damage).
Search every recorded installation in Washington County by installer, size, date and equipment.
Search sites →Independent check:Stanford's DeepSolar detected about 614 solar arrays here from 2018 satellite imagery — our recorded data covers roughly 6% 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 | Rocky Grove Sun Company | 7 |
| 2 | Ar Wind And Solar | 2 |
| 3 | Arkansas Wind Solar | 2 |
| 4 | Donovan Netherland | 1 |
| 5 | Precision Mechanical | 1 |
| 6 | Lenny Baledge | 1 |
| 7 | Stellar Solar | 1 |
| 8 | Sun Company | 1 |
| 9 | Stitt Energy Systems | 1 |
Growth
Installations by year
How does Washington County compare with the rest of Arkansas?
The median recorded system in Washington County is 7.71 kW, about 59% below the state median of 19 kW. By share of housing units with a recorded system, Washington County ranks 5th of 6 Arkansas counties with at least 10 installations. Fewer than 30 systems here report an installed price, so no county price median is published.
How has solar adoption changed in Washington County?
The earliest recorded installation in Washington County dates to 2010. The busiest year on record is 2010, with 20 installations. 2022 has 1 recorded installation so far. The county's cumulative total rose from 29 at the end of 2017 to 34 today. Recent years fill in as state programs and permit offices report, so the latest counts are provisional.
Who installs solar in Washington County?
Rocky Grove Sun Company has the most recorded installations in Washington County (7, 21% of the county's records). Other active installers here include Ar Wind And Solar, Arkansas Wind Solar and Donovan Netherland. Installers based anywhere in Arkansas are listed in the state installer directory.
Frequently asked questions
How many homes have solar in Washington County?
PanelCensus records 34 solar installations in Washington County, Arkansas (18.5 MW of capacity) — about 0.03% of the county's 103,174 housing units (U.S. Census ACS). Coverage depends on Arkansas's public reporting, so the true total is likely higher.
Who installs solar in Washington County?
The most active recorded installers in Washington County are Rocky Grove Sun Company (7), Ar Wind And Solar (2) and Arkansas Wind Solar (2).
How big is a typical solar system in Washington County?
The median recorded system in Washington County is 7.7 kW, against 19 kW for Arkansas as a whole.
More solar data near Washington County
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.
About this data
Source: Lawrence Berkeley National Laboratory's Tracking the Sun, merged with city permit records, state incentive programs and the USGS U.S. Large-Scale Solar Photovoltaic Database / EIA-860 plant registers, as published October 10, 2026 — PanelCensus refreshes it as each source publishes new records. See the methodology for how records are matched, cleaned and scored.
Cite as: PanelCensus, “Solar installations in Washington County, Arkansas”, https://panelcensus.com/solar/arkansas/washington-county (data as of October 10, 2026).