Maalaea — Plant Summary
- EIA Plant ID
- 6504
- Capacity
- 229.8 MW
- Primary Fuel
- Oil
- Technology
- Petroleum Liquids
- Status
- Operating
- Location
- Maui, HI
- Operating Since
- 1971
- Generators
- 21
- Operator
- Maui Electric Co Ltd
- Parent Company
- Hawaiian Electric Industries
- Annual Generation
- 623,047 MWh
- Capacity Factor
- 31.0%
- Balancing Authority
- —
- ISO/RTO
- —
- NERC Region
- —
Maalaea
OperatingDistillate Oil
Ranked #1 of 12 Distillate Oil plants in HI#14 of 827 nationally
229.8 MW Distillate Oil operating in Maui, HI
EIAWD
229.8 MW
Nameplate Capacity
21
Generators
units
Petroleum Liquids
Technology
1971
Operating Since
Location
Coordinates
20.8012, -156.4930
County
Maui, HI
Nearby Plants
- Kaheawa Wind Power II LLCBESS31 MW · 4.5 km
- AES Maui Kuihelani Solar HybridBESS120 MW · 4.8 km
- Kuihelani SubstationDistillate Oil1 MW · 7.0 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Maui Electric Co Ltd | Maui Electric | — |
| Owner(s) | Maui Electric Co Ltd | Hawaiian Electric Industries | — |
| Status | Operating | — | — |
Ownership Chain
About
The Maalaea power plant, located in Maui County, Hawaii, has a total capacity of 229.8 MW. The plant began operating in 1971 and is owned by Hawaiian Electric Industries, with Maui Electric Co Ltd listed as the operator. The primary fuel source is DFO (distillate fuel oil), and the plant utilizes petroleum liquid technologies across its 21 generators. Maalaea ranks as the largest of two petroleum liquid plants in the state of Hawaii, and 34th out of 60 similar plants nationally.
In the most recent year with available data, the plant generated 623,047 MWh of electricity, achieving a capacity factor of 31.0%. The plant operates within the Hawaiian Electric grid, which is not part of any mainland ISO/RTO market. Recent news coverage of the plant includes topics related to the industry, grid operations, potential hazards, and business deals.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
—
Balancing Authority
—
Grid Voltage
69 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
63.2K MWh
Latest Month
623.0K MWh
Annual Generation
31.0%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Hazards·flooding
Flood Watch: Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; M
Flood Watch issued March 21 at 3:53AM HST until March 22 at 6:00PM HST by NWS Honolulu HI
Flood Watch (hazard)
NWS Honolulu HI·5 days ago
Hazards·flooding
Tsunami warning downgraded to advisory
Update 10:38 p.m.: The Pacific Warning Tsunami Center has downgraded the tsunami warning for Hawaii to a tsunami advisory.
Pacific Warning Tsunami Center (regulator)Hawaii (other)
mauinews.com·8 months ago
Grid·capacity addition
Maui Faces Uncertainty Over The Future Of Its Energy Grid
As HECO tries to get new clean energy projects going, island leaders are discussing whether to make it mandatory to bury more power lines...
HECO (operator)
Honolulu Civil Beat·1 years ago
General
Paeahu Solar project agreement terminated
Hawaiian Electric announced that its agreement with Innergex Renewable Energy for a planned grid-scale solar and battery storage project in South Maui has been...
Spectrum News·2 years ago
Last updated 2026-03-21
View all 10 articles