Waihonu South Solar
Solar power plant · Honolulu County, Hawaii
Nameplate capacity
1.5 MW
Rank in Hawaii
#68
of 76 plants
In service since
2016
July 2016
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- ERCAM LLC
- County
- Honolulu County
- Generating units
- 3
- Share of state capacity
- 0.04%
- Rank among solar plants in Hawaii
- #24 of 29
- EIA plant code
- 58656
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| INV-1 | Solar Photovoltaic | 0.5 MW | 0.5 MW | 2016 | Operating |
| INV-2 | Solar Photovoltaic | 0.5 MW | 0.5 MW | 2016 | Operating |
| INV-3 | Solar Photovoltaic | 0.5 MW | 0.5 MW | 2016 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Hawaii
| Kalaheo Hydro | Hydro | 2.0 MW |
| BRE - Ritz Carlton Kapalua | Solar | 1.5 MW |
| Mauna Loa Macadamia Nut | Solar | 1.3 MW |
| Paia Hydroelectric Plant | Hydro | 1.3 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 1.5 MW solar plant and a 1.5 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Hawaii power plants · What Hawaii actually generates