20 MW Solar operating in Honolulu, HI — Hawaiian Electric Co Inc
20 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2019
Operating Since
Coordinates
21.3403, -158.0151
County
Honolulu, HI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Hawaiian Electric Co Inc | Hawaiian Electric Company | — |
| Owner(s) | Hawaiian Electric Co Inc | Hawaiian Electric Industries | — |
| Status | Operating | operating | — |
West Loch Solar One is a 20 MW solar photovoltaic power plant located in Honolulu County, Hawaii. The plant, which began operating in 2019, has one generator and utilizes fixed-tilt solar tracking technology. It is owned by Hawaiian Electric Industries and operated by Hawaiian Electric Co Inc, which also serves as the balancing authority. The plant's primary fuel source is the sun.
In its most recent year of operation, West Loch Solar One generated 36,464 MWh of electricity, achieving a capacity factor of 20.8%. The plant is ranked as the 4th largest solar facility out of 19 in the state of Hawaii, and 1379th out of 7108 nationally. Financial data is available for the plant from LBNL Solar.
Generated from EIA, GEM, and public data sources
NERC Region
—
Balancing Authority
Hawaiian Electric Co Inc
Grid Voltage
46 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
2.6K MWh
Latest Month
36.5K MWh
Annual Generation
20.8%
Capacity Factor
$68.0/MWh
LCOE (Levelized Cost)
$171.0/MWh
Energy Value
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Last updated 2026-03-26
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