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10.4 MW Hydro operating in Hawaii, HI
10.4 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1993
Operating Since
Coordinates
19.7130, -155.1486
County
Hawaii, HI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wailuku Holding Company LLC | — | — |
| Owner(s) | Wailuku Holding Company LLC | — | — |
| Status | Operating | — | — |
Wailuku River Hydroelectric is a 10.4 MW hydroelectric power plant located in Hawaii County, Hawaii. The plant began operating in 1993 and is owned and operated by Wailuku Holding Company LLC. It utilizes conventional hydroelectric technology and consists of two generators, using water (WAT) as its primary fuel source.
In the most recent year with available data, Wailuku River Hydroelectric generated 14,082 MWh of electricity, achieving a capacity factor of 15.3%. The plant is ranked as the largest of 7 hydroelectric facilities in the state of Hawaii, and 652nd out of 1464 hydroelectric plants nationally. Recent news coverage of the plant includes topics such as hazards, regulatory matters, industry trends, and deals.
Generated from EIA, GEM, and public data sources
Grid Region
—
Market
—
NERC Region
—
Balancing Authority
759 MWh
Latest Month
14.1K MWh
Annual Generation
15.3%
Capacity Factor
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $23.9M
This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not available.
Last updated 2026-03-26
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Grid Voltage
69.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP