Largest power plants in Hawaii
The 50 largest power plants in Hawaii by nameplate capacity, from EIA-860M for August 2026, with 2025 net generation from EIA-923.
Plants
50
Nameplate capacity
3,583 MW
Net generation, 2025
9.20 TWh
49 of 50 plants reported
Top 50 by nameplate capacity
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | KaheHonolulu County · Oil | 610 | 2,809 | 52.6% |
| 2 | WaiauHonolulu County · Oil | 375 | 975 | 29.7% |
| 3 | Kalaeloa Cogen PlantHonolulu County · Oil | 299 | 1,424 | 54.3% |
| 4 | MaalaeaMaui County · Oil | 217 | 623 | 31.0% |
| 5 | Kapolei Energy StorageHonolulu County · Battery storage | 185 | −18.7 | – |
| 6 | AES Maui Kuihelani Solar HybridMaui County · Solar and battery storage | 120 | 107 | 20.7% |
| 7 | Ho'Ohana Solar 1Honolulu County · Solar and battery storage | 117 | 40.4* | – |
| 8 | Campbell Industrial ParkHonolulu County · Oil | 113 | 93.6 | 9.5% |
| 9 | H PowerHonolulu County · Municipal solid waste | 100 | 318 | 36.3% |
| 10 | Port Allen (HI)Kauai County · Oil | 90 | 78.8 | 10.1% |
| 11 | KeaholeHawaii County · Oil | 89 | 320 | 40.9% |
| 12 | Mililani South Solar FarmHonolulu County · Solar and battery storage | 78 | 62.6 | 20.7% |
| 13 | Hale Kuawehi Solar HybridHawaii County · Solar and battery storage | 74 | 65.0* | – |
| 14 | Waiawa Solar Power HybridHonolulu County · Solar and battery storage | 72 | 58.0 | 20.1% |
| 15 | Kawailoa WindHonolulu County · Wind | 69 | 93.2 | 15.4% |
| 16 | Hamakua Energy PlantHawaii County · Oil | 66 | 88.2 | 15.3% |
| 17 | AES Waikoloa Solar HybridHawaii County · Solar and battery storage | 60 | 61.0 | 24.1% |
| 18 | Schofield Generating StationHonolulu County · Biomass | 50 | 9.3 | 2.1% |
| 19 | Kawailoa SolarHonolulu County · Solar | 49 | 73.9 | 17.2% |
| 20 | Puna Geothermal Venture IHawaii County · Geothermal | 48 | 208 | 46.5% |
| 21 | Waipio SolarHonolulu County · Solar | 46 | 99.0 | 24.6% |
| 22 | AES Lawai Solar HybridKauai County · Solar and battery storage | 40 | 40.2 | 23.4% |
| 23 | PunaHawaii County · Oil | 39 | 58.1 | 16.9% |
| 24 | Kapaia Power StationKauai County · Other fuels | 39 | 190 | – |
| 25 | W H HillHawaii County · Oil | 37 | 145 | 44.7% |
| 26 | Auwahi Wind Energy HybridMaui County · Wind and battery storage | 35 | 90.7 | 43.2% |
| 27 | KahuluiMaui County · Oil | 34 | 152 | 51.1% |
| 28 | Kaheawa Wind Power II LLCMaui County · Wind and battery storage | 31 | 47.9 | 26.0% |
| 29 | Kaheawa Pastures Wind Farm HybridMaui County · Wind | 30 | 52.6 | 20.0% |
| 30 | Kahuku Wind Power LLCHonolulu County · Wind | 30 | 53.1 | 20.2% |
| 31 | EE Waianae Solar ProjectHonolulu County · Solar | 28 | 59.4 | 24.0% |
| 32 | KIUC Kapaia PV and BA Storage Project HyKauai County · Solar and battery storage | 28 | 21.1 | 17.4% |
| 33 | AES Kekaha Solar, LLC HybridKauai County · Solar and battery storage | 28 | 26.6 | 22.3% |
| 34 | Na Pua Makani Wind ProjectHonolulu County · Wind | 28 | 96.1 | 39.7% |
| 35 | AES West Oahu Solar HybridHonolulu County · Solar and battery storage | 25 | 22.1 | 20.5% |
| 36 | KanoelehuaHawaii County · Oil | 21 | 7.2 | 3.9% |
| 37 | Pakini Nui Wind FarmHawaii County · Wind | 21 | 115 | 62.4% |
| 38 | Tesoro HawaiiHonolulu County · Oil | 20 | 159 | 90.6% |
| 39 | West Loch Solar OneHonolulu County · Solar | 20 | 39.9 | 22.8% |
| 40 | Lanikuhana Solar LLCHonolulu County · Solar | 15 | 31.6 | 24.5% |
| 41 | Palaau Power HybridMaui County · Oil | 13 | 31.2 | 23.6% |
| 42 | KRS I Anahola Solar HybridKauai County · Solar | 12 | 20.6 | 19.6% |
| 43 | KRS II Koloa SolarKauai County · Solar | 12 | 19.2 | 18.2% |
| 44 | Waipio PeninsulaHonolulu County · Solar | 11 | 16.1 | 16.7% |
| 45 | Hawi Wind FarmHawaii County · Wind | 11 | – | – |
| 46 | Wailuku River HydroelectricHawaii County · Hydro | 10 | 14.1 | 15.5% |
| 47 | Miki BasinMaui County · Oil | 10 | 35.7 | 39.2% |
| 48 | Biomass to Energy Facility, KauaiKauai County · Biomass and oil | 10 | 28.6 | 31.7% |
| 49 | HNL Emergency Power FacilityHonolulu County · Biomass | 10 | 2.6 | 2.9% |
| 50 | Gay RobinsonKauai County · Hydro | 7.7 | 35.6 | 46.7% |
* Fewer than 12 months of 2025 reported, so the total is partial.
MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources