Solar installations in Kauai County, HI
54 recorded installations in Kauai County, Hawaii — capacity, prices and the installers doing the work.
Dataset updated . Sources: LBNL Tracking the Sun + city permit records + state programs + USGS/EIA utility-scale.
† Hawaii is under-reported. Public solar data is incomplete statewide, so this 0.18% homes-with-solar figure is a floor — the true rate is higher. See the coverage scorecard.
Search every recorded installation in Kauai County by installer, size, date and equipment.
Search sites →Independent check:Stanford's DeepSolar detected about 1,549 solar arrays here from 2018 satellite imagery — our recorded data covers roughly 3% of that (this county is under-reported in public program data). A yardstick, not dated records.
Most active
Top installers in Kauai County
| # | Installer | Installs here |
|---|---|---|
| 1 | Sunpower | 46 |
| 2 | Black Oak Electric | 1 |
Growth
Installations by year
Frequently asked questions
How many homes have solar in Kauai County?
PanelCensus records 54 solar installations in Kauai County, Hawaii (101.5 MW of capacity) — about 0.18% of the county's 30,392 housing units (U.S. Census ACS). Dataset coverage depends on Hawaii's reporting programs, so the true total is higher.
How much does solar cost in Kauai County?
The median installed price for recorded systems in Kauai County is $5.51/W pre-incentive; the median system runs 2.5 kW.
Who installs solar in Kauai County?
The most active recorded installers in Kauai County are Sunpower, Black Oak Electric.
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.