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17.1 MW Batteries (2 MW) + Petroleum Liquids (15 MW) operating in Maui, HI
17.1 MW
Nameplate Capacity
11
Generators
units
Hybrid (2)
Technology
Batteries + Petroleum Liquids
1982
Operating Since
Coordinates
33.0248, -112.6587
County
Maui, HI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Maui Electric Co Ltd | Maui Electric | — |
| Owner(s) | Maui Electric Co Ltd | Hawaiian Electric Industries | — |
| Status | Operating | — | — |
Palaau Power Hybrid is a hybrid power plant located in Maui County, Hawaii. The plant, which began operating in 1982, has a total capacity of 17.1 MW across 11 generators. Its primary fuel source is petroleum liquids (DFO), and it also incorporates battery storage. The plant is owned by Hawaiian Electric Industries and operated by Maui Electric Co Ltd. Palaau Power Hybrid is ranked as the 8th largest power plant out of 14 in Hawaii, and 222nd out of 886 nationally.
The plant's battery energy storage system (BESS) has a capacity of 2 MWh and a duration of 1 hour, utilizing an "OTH" (other) battery chemistry. In the most recent year with available data, Palaau Power Hybrid generated 31,332 MWh of electricity, resulting in a capacity factor of 20.8%. The plant operates within the Hawaiian Electric grid, which is not part of any mainland ISO/RTO market.
Generated from EIA, GEM, and public data sources
Grid Region
—
Market
—
NERC Region
—
Balancing Authority
2.8K MWh
Latest Month
31.3K MWh
Annual Generation
20.8%
Capacity Factor
CO₂ Intensity
1657 lb/MWh
NOx
33 lb/MWh
SO₂
2013
$765/kW
Est. Construction Cost
Total estimated cost: $13.1M
This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not available.
Last updated 2026-03-14
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Grid Voltage
34.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
3 lb/MWh
CH₄
0.067 lb/MWh
N₂O
0.013 lb/MWh
Capacity Factor
20.7%
Annual Net Gen
31 GWh
CO₂eq
1662 lb/MWh
Subregion
HICC Miscellaneous