37th largest plant in Hawaii · 4596th nationally
West Loch Solar One is a solar power plant in Hawaii with a nameplate capacity of 20.0 MW. It generates roughly 39.3k MWh per year — enough to power about 3,743 average U.S. homes.
Its capacity factor of 22% reflects intermittent or peaking operation.
| Plant Name | West Loch Solar One |
|---|---|
| Operator | Hawaiian Electric Co Inc |
| City | Ewa Beach |
| County | Honolulu County |
| State | Hawaii |
| ZIP | 96706 |
| Coordinates | 21.34034, -158.01508 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| WLS1 | Solar Photovoltaic | Solar | 20.0 MW | Operating | 2019 |
| Balancing Authority | Hawaiian Electric Co Inc |
|---|
Utility-scale solar farms convert sunlight directly into electricity using photovoltaic panels. They produce zero direct emissions and have no fuel cost, but generation is variable — peaking at midday and falling to zero at night. Capacity factors typically run 18–28% in good locations.