Power plants in Hawaii
73 operating power projects with 3,652 MW of nameplate capacity, from EIA-860M for August 2026.
Projects
73
Nameplate capacity
3,652 MW
Counties with a plant
4
Operators
43
Capacity by fuel
Other fuels · 2,298 MW · 24Solar · 578 MW · 34Battery storage · 515 MW · 1Wind · 233 MW · 8Hydro · 28 MW · 6
MW is nameplate from operating generators and batteries. Plant counts use each project's primary fuel, so a coal and gas plant counts once.
Largest power plants in Hawaii
Top 50 · All 73 plants| Plant | Primary fuel | MW | County | Operator |
|---|---|---|---|---|
| Kahe | Oil | 610 | Honolulu | Hawaiian Electric Co Inc |
| Waiau | Oil | 375 | Honolulu | Hawaiian Electric Co Inc |
| Kalaeloa Cogen Plant | Oil | 299 | Honolulu | Kalaeloa Partners LP |
| Maalaea | Oil | 217 | Maui | Maui Electric Co Ltd |
| Kapolei Energy Storage | Battery storage | 185 | Honolulu | Kapolei Energy Storage I, LLC |
| AES Maui Kuihelani Solar Hybrid | Solar and battery storage | 120 | Maui | AES Distributed Energy |
| Ho'Ohana Solar 1 | Solar and battery storage | 117 | Honolulu | Ho'Ohana Solar 1 LLC |
| Campbell Industrial Park | Oil | 113 | Honolulu | Hawaiian Electric Co Inc |
| H Power | Municipal solid waste | 100 | Honolulu | Covanta Honolulu Resource Recovery |
| Port Allen (HI) | Oil | 90 | Kauai | Kauai Island Utility Cooperative |
Hawaii power plants by fuel
Newest plants in Hawaii
Ordered by the month the first generator began operating.
BRE - Ritz Carlton KapaluaSolar · 1.5 MW · Maui County · December 2025Ho'Ohana Solar 1Solar · 117.3 MW · Honolulu County · July 2025Hale Kuawehi Solar HybridSolar · 74 MW · Hawaii County · March 2025AES Maui Kuihelani Solar HybridSolar · 120 MW · Maui County · May 2024AES West Oahu Solar HybridSolar · 25 MW · Honolulu County · March 2024Kapolei Energy StorageBattery storage · 185 MW · Honolulu County · December 2023
Counties with the most capacity
Largest operators in Hawaii
Hawaiian Electric Co Inc6 plants · 1,178 MW
Kalaeloa Partners LP1 plant · 299 MW
Maui Electric Co Ltd6 plants · 277 MW
AES Distributed Energy5 plants · 273 MW
Hawaii Electric Light Co Inc7 plants · 198 MW
Grouped by EIA operator name. Parent companies are not merged.
All 73 plants in Hawaii, by county
Hawaii County 15 plants
- Keahole Oil · 89.1 MW
- Hale Kuawehi Solar Hybrid Solar · 74 MW
- Hamakua Energy Plant Oil · 66 MW
- AES Waikoloa Solar Hybrid Solar · 60 MW
- Puna Geothermal Venture I Geothermal · 47.5 MW
- Puna Oil · 39.1 MW
- W H Hill Oil · 37.1 MW
- Kanoelehua Oil · 21 MW
- Pakini Nui Wind Farm Wind · 21 MW
- Hawi Wind Farm Wind · 10.6 MW
- Wailuku River Hydroelectric Hydro · 10.4 MW
- Waimea Oil · 7.5 MW
- Puueo Hydro · 3.1 MW
- Mauna Loa Macadamia Nut Solar · 1.3 MW
- Waiau Hydro Hydro · 1 MW
Honolulu County 31 plants
- Kahe Oil · 609.7 MW
- Waiau Oil · 374.6 MW
- Kalaeloa Cogen Plant Oil · 299.4 MW
- Kapolei Energy Storage Battery storage · 185 MW
- Ho'Ohana Solar 1 Solar · 117.3 MW
- Campbell Industrial Park Oil · 113 MW
- H Power Municipal solid waste · 100.2 MW
- Mililani South Solar Farm Solar · 78 MW
- Waiawa Solar Power Hybrid Solar · 72 MW
- Kawailoa Wind Wind · 69 MW
- Schofield Generating Station Biomass · 50.4 MW
- Kawailoa Solar Solar · 49 MW
- Waipio Solar Solar · 45.9 MW
- Kahuku Wind Power LLC Wind · 30 MW
- EE Waianae Solar Project Solar · 28.3 MW
- Na Pua Makani Wind Project Wind · 27.6 MW
- AES West Oahu Solar Hybrid Solar · 25 MW
- Tesoro Hawaii Oil · 20 MW
- West Loch Solar One Solar · 20 MW
- Lanikuhana Solar LLC Solar · 14.7 MW
- Waipio Peninsula Solar · 11 MW
- HNL Emergency Power Facility Biomass · 10 MW
- Kalaeloa Solar Two Solar · 5 MW
- Kalaeloa Renewable Energy Park Solar · 5 MW
- Waihonu North Solar Solar · 5 MW
- Aloha Solar Energy Fund 1 PK1 Solar · 5 MW
- BYU - Hawaii Solar · 5 MW
- Mauka FIT One Solar · 3.5 MW
- Waihonu South Solar Solar · 1.5 MW
- Pearl City Peninsula Solar Park Solar · 1 MW
- Kapolei Solar Energy Park Solar · 1 MW
Kauai County 13 plants
- Port Allen (HI) Oil · 89.5 MW
- AES Lawai Solar Hybrid Solar · 40 MW
- Kapaia Power Station Other fuels · 39.1 MW
- KIUC Kapaia PV and BA Storage Project Hy Solar · 28 MW
- AES Kekaha Solar, LLC Hybrid Solar · 28 MW
- KRS I Anahola Solar Hybrid Solar · 12 MW
- KRS II Koloa Solar Solar · 12 MW
- Biomass to Energy Facility, Kauai Biomass and oil · 10.3 MW
- Gay Robinson Hydro · 7.7 MW
- Port Allen Solar Solar · 6 MW
- Wainiha Hydro Hydro · 3.6 MW
- Kalaheo Hydro Hydro · 2 MW
- Kapaa Photovoltaic Project Solar · 1 MW
Maui County 14 plants
- Maalaea Oil · 217.3 MW
- AES Maui Kuihelani Solar Hybrid Solar · 120 MW
- Auwahi Wind Energy Hybrid Wind · 35 MW
- Kahului Oil · 34 MW
- Kaheawa Wind Power II LLC Wind · 31 MW
- Kaheawa Pastures Wind Farm Hybrid Wind · 30 MW
- Palaau Power Hybrid Oil · 12.6 MW
- Miki Basin Oil · 10.4 MW
- Kihei Solar Farm Solar · 2.9 MW
- Ku'ia Solar Solar · 2.9 MW
- Hana Substation Oil · 2 MW
- BRE - Ritz Carlton Kapalua Solar · 1.5 MW
- Lanai Solar-Electric Plant Solar · 1.2 MW
- Kuihelani Substation Oil · 1 MW
Questions about power plants in Hawaii
How many power plants are in Hawaii?
EIA-860M for August 2026 lists 73 operating power projects in Hawaii, with 3,652 MW of nameplate capacity including batteries.
What is the largest power plant in Hawaii?
Kahe in Honolulu County, with 609.7 MW of nameplate capacity. The next largest is Waiau, with 374.6 MW.
How much of Hawaii's capacity is solar?
578 MW, about 16% of nameplate capacity. 34 projects have solar as their primary fuel.
Source: EIA-860M August 2026, published 2026-09-24. Page updated 2026-10-04. Data sources