Directory of Power Plants in Hawaii
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Wainiha Hydro | BBCP Kauai Operating LLC | Hanalei, HI | 18.9 GWh | Dec 1905 | Jun 2026 | Water | |
| Puueo | Hawaii Electric Light Co Inc | Hilo, HI | 2.0 GWh | Nov 1918 | Apr 2026 | Water | |
| Kalaheo Hydro | BBCP Kauai Operating LLC | Kalaheo, HI | 461.0 MWh | Dec 1927 | Dec 2025 | Water | |
| Waiau | Hawaiian Electric Co Inc | Pearl City, HI | 1.0 TWh | Nov 1947 | Jun 2026 | Residual Fuel Oil : 87.2% Distillate Fuel Oil : 12.8% | |
| Kahului | Maui Electric Co Ltd | Kahului, HI | 152.1 GWh | Apr 1948 | Dec 2025 | Residual Fuel Oil | |
| Kanoelehua | Hawaii Electric Light Co Inc | Hilo, HI | 7.2 GWh | Dec 1961 | Dec 2025 | Distillate Fuel Oil | |
| Kahe | Hawaiian Electric Co Inc | Kapolei, HI | 2.9 TWh | Feb 1963 | Jun 2026 | Residual Fuel Oil : 99.9% | |
| Port Allen (HI) | Kauai Island Utility Cooperative | Eleele, HI | 80.9 GWh | Dec 1963 | Jun 2026 | Distillate Fuel Oil | |
| W H Hill | Hawaii Electric Light Co Inc | Hilo, HI | 145.4 GWh | Nov 1965 | Dec 2025 | Residual Fuel Oil | |
| Waimea | Hawaii Electric Light Co Inc | Kamuela, HI | 6.2 GWh | Nov 1970 | Dec 2025 | Distillate Fuel Oil | |
| Maalaea | Maui Electric Co Ltd | Kihei, HI | 644.0 GWh | Nov 1971 | Jun 2026 | Distillate Fuel Oil | |
| Gay Robinson | Gay & Robinson Inc | Kaumakani, HI | (NA) | 35.6 GWh | Feb 1982 | Dec 2025 | Water |
| Palaau Power Hybrid | Maui Electric Co Ltd | Kaunakakai, HI | 31.2 GWh | Mar 1982 | Dec 2025 | Distillate Fuel Oil | |
| Tesoro Hawaii | PAR Petroleum | Kapolei, HI | (NA) | 154.0 GWh | Nov 1982 | Jun 2026 | Waste/Other Oil : 93.0% Distillate Fuel Oil : 7.0% |
| Keahole | Hawaii Electric Light Co Inc | Kailua Kona, HI | 261.5 GWh | Oct 1984 | Jun 2026 | Distillate Fuel Oil | |
| Puna | Hawaii Electric Light Co Inc | Keaau, HI | 58.1 GWh | Jul 1988 | Dec 2025 | Distillate Fuel Oil : 81.2% Residual Fuel Oil : 18.8% | |
| Kalaeloa Cogen Plant | Kalaeloa Partners LP | Kapolei, HI | 1.4 TWh | Sep 1989 | Jun 2026 | Residual Fuel Oil : 99.9% | |
| H Power | Covanta Honolulu Resource Recovery | Kapolei, HI | 269.0 GWh | Oct 1989 | Jun 2026 | Non-biogenic Municipal Solid Waste : 53.8% Biogenic Municipal Solid Waste : 44.0% Distillate Fuel Oil : 2.2% | |
| Miki Basin | Maui Electric Co Ltd | Lanai City, HI | 35.7 GWh | Mar 1990 | Dec 2025 | Distillate Fuel Oil | |
| Puna Geothermal Venture I | Puna Geothermal Venture | Pahoa, HI | 207.9 GWh | Jul 1992 | Dec 2025 | Geothermal | |
| Wailuku River Hydroelectric | Wailuku Holding Company LLC | Hilo, HI | 29.9 GWh | Apr 1993 | Jun 2026 | Water | |
| Hamakua Energy Plant | Hamakua Energy LP | Honokaa, HI | 141.7 GWh | Jun 2000 | Jun 2026 | Waste/Other Oil : 60.7% Distillate Fuel Oil : 29.1% Other Biomass Liquids : 10.2% | |
| Hana Substation | Maui Electric Co Ltd | Hana, HI | 84.0 MWh | Mar 2001 | Dec 2025 | Distillate Fuel Oil | |
| Kapaia Power Station | Kauai Island Utility Cooperative | Lihue, HI | 192.4 GWh | Aug 2002 | Jun 2026 | Other Fuel : 99.5% Distillate Fuel Oil : 0.5% | |
| Kaheawa Pastures Wind Farm Hybrid | Evergreen Wind, LLC | Maalaea, HI | 44.9 GWh | Dec 2005 | Jun 2026 | Wind | |
| Pakini Nui Wind Farm | Apollo Energy Corp | Naalehu, HI | 107.1 GWh | Mar 2007 | Jun 2026 | Wind | |
| Campbell Industrial Park | Hawaiian Electric Co Inc | Kapolei, HI | 155.1 GWh | Jun 2009 | Jun 2026 | Distillate Fuel Oil | |
| Kapaa Photovoltaic Project | Kapaa Solar LLC | Kapaa, HI | 1.6 GWh | Nov 2010 | Dec 2025 | Solar | |
| Kahuku Wind Power LLC | Evergreen Wind, LLC | Honolulu, HI | 42.1 GWh | Feb 2011 | Jun 2026 | Wind | |
| Kapolei Solar Energy Park | Altus Power America Management, LLC | Kapolei, HI | (HECO) | 1.3 GWh | Jan 2012 | Dec 2025 | Solar |
| Kaheawa Wind Power II LLC | Evergreen Wind, LLC | Wailuku, HI | 47.7 GWh | May 2012 | Jun 2026 | Wind | |
| Kawailoa Wind | Kawailoa Wind LLC | Haleiwa, HI | 87.4 GWh | Oct 2012 | Jun 2026 | Wind | |
| Pearl City Peninsula Solar Park | Altus Power America Management, LLC | Honolulu, HI | (HECO) | 3.8 GWh | Oct 2012 | Dec 2025 | Solar |
| Kalaeloa Solar Two | Altus Power America Management, LLC | Honolulu, HI | 7.9 GWh | Nov 2012 | Dec 2025 | Solar | |
| Port Allen Solar | Kaieie Waho Company LLC | Eleele, HI | 8.5 GWh | Nov 2012 | Dec 2024 | Solar | |
| Auwahi Wind Energy Hybrid | Auwahi Wind Energy LLC | Kula, HI | 90.7 GWh | Nov 2012 | Dec 2025 | Wind | |
| Kalaeloa Renewable Energy Park | ENI New Energy US Inc | Ewa Beach, HI | 4.3 GWh | Dec 2013 | Dec 2024 | Solar | |
| Biomass to Energy Facility, Kauai | Mahipapa LLC | Koloa, HI | 28.6 GWh | Apr 2014 | Dec 2025 | Agricultural By-Products | |
| KRS II Koloa Solar | Kauai Island Utility Cooperative | Koloa, HI | 18.2 GWh | May 2014 | Jun 2026 | Solar | |
| KRS I Anahola Solar Hybrid | Kauai Island Utility Cooperative | Anahola, HI | 19.2 GWh | Jul 2015 | Jun 2026 | Solar | |
| Waipio Peninsula | Pacific Energy Solutions, LLC | Waipio, HI | (HECO) | 16.1 GWh | Sep 2015 | Dec 2025 | Solar |
| Waihonu North Solar | ERCAM LLC | Mililani, HI | 7.5 GWh | Jun 2016 | Dec 2025 | Solar | |
| Waihonu South Solar | ERCAM LLC | Mililani, HI | 2.5 GWh | Jun 2016 | Dec 2025 | Solar | |
| EE Waianae Solar Project | EE Waianae Solar Project LLC | Waianae, HI | (HECO) | 52.7 GWh | Dec 2016 | Jun 2026 | Solar |
| Aloha Solar Energy Fund 1 PK1 | Altus Power America Management, LLC | Waianae, HI | 7.2 GWh | Feb 2017 | Dec 2025 | Solar | |
| KIUC Kapaia PV and BA Storage Project Hy | Tesla Inc. | Lihue, HI | (NA) | 21.1 GWh | Apr 2017 | Dec 2025 | Solar |
| HNL Emergency Power Facility | Hawaiian Electric Co Inc | Honolulu, HI | 2.6 GWh | May 2017 | Dec 2025 | Other Biomass Liquids | |
| Schofield Generating Station | Hawaiian Electric Co Inc | Schofield Barracks, HI | (HECO) | 14.6 GWh | May 2018 | Jun 2026 | Other Biomass Liquids : 96.2% Distillate Fuel Oil : 3.8% |
| AES Lawai Solar Hybrid | AES Distributed Energy | Lawai, HI | 39.1 GWh | Nov 2018 | Jun 2026 | Solar | |
| Lanikuhana Solar LLC | Lanikuhana Solar LLC | Mililani, HI | (HECO) | 28.9 GWh | Aug 2019 | Jun 2026 | Solar |
| Waipio Solar | Waipio PV, LLC | Waipio, HI | (HECO) | 90.2 GWh | Aug 2019 | Jun 2026 | Solar |
| West Loch Solar One | Hawaiian Electric Co Inc | Ewa Beach, HI | (HECO) | 39.9 GWh | Oct 2019 | Dec 2025 | Solar |
| Kawailoa Solar | Kawailoa Solar, LLC | Haleiwa, HI | (HECO) | 68.1 GWh | Oct 2019 | Jun 2026 | Solar |
| AES Kekaha Solar, LLC Hybrid | AES Distributed Energy | Kekaha, HI | 26.6 GWh | Nov 2019 | Dec 2025 | Solar | |
| Mauka FIT One | Valta Energy | Kahuku, HI | 4.5 GWh | Sep 2020 | Dec 2025 | Solar | |
| Na Pua Makani Wind Project | Na Pua Makani Power Partners LLC | Kahuku, HI | 87.0 GWh | Nov 2020 | Jun 2026 | Wind | |
| BYU - Hawaii | SkyHigh 2 Solar | Laie, HI | (HECO) | 5.4 GWh | Oct 2021 | Dec 2025 | Solar |
| Mauna Loa Macadamia Nut | Macadamia Nut Road Solar Project 2019 | Keaau, HI | (HECO) | 1.4 GWh | Nov 2021 | Dec 2024 | Solar |
| Mililani South Solar Farm | Mililani I Solar LLC | Mililani, HI | 58.9 GWh | Jun 2022 | Jun 2026 | Solar | |
| Waiawa Solar Power Hybrid | Waiawa Solar Power LLC | Waipahu, HI | (HECO) | 54.1 GWh | Dec 2022 | Jun 2026 | Solar |
| AES Waikoloa Solar Hybrid | AES Distributed Energy | Waikoloa Village, HI | (HECO) | 56.8 GWh | Mar 2023 | Jun 2026 | Solar |
| Kuihelani Substation | Maui Electric Co Ltd | Kahului, HI | 18.0 MWh | Jul 2023 | Dec 2025 | Distillate Fuel Oil | |
| AES West Oahu Solar Hybrid | AES Distributed Energy | Waipahu, HI | (HECO) | 19.6 GWh | Feb 2024 | Jun 2026 | Solar |
| AES Maui Kuihelani Solar Hybrid | AES Distributed Energy | Waikapu, HI | (HECO) | 94.4 GWh | Apr 2024 | Jun 2026 | Solar |
| Hale Kuawehi Solar Hybrid | Hale Kuawehi Solar LLC | Waimea, HI | (HECO) | 77.1 GWh | Feb 2025 | Jun 2026 | Solar |
| Ho'Ohana Solar 1 | Ho'Ohana Solar 1 LLC | Waipahu, HI | (HECO) | 57.8 GWh | Jun 2025 | Jun 2026 | Solar |
| BRE - Ritz Carlton Kapalua | Onyx Asset Services Group | Lahaina, HI | (HECO) | 127.0 MWh | Nov 2025 | Dec 2025 | Solar |
Browse Power Plants By Hawaii Counties
Figures are based on June 2026 generation numbers.| County | State Rank | Active Plants | Jun 2026 Generation |
|---|---|---|---|
| Honolulu County, HI | # 1 | 49 | 6.6 TWh |
| Maui County, HI | # 2 | 21 | 1.1 TWh |
| County | State Rank | Active Plants | Jun 2026 Generation |
|---|---|---|---|
| Hawaii County, HI | # 3 | 21 | 1.1 TWh |
| Kauai County, HI | # 4 | 14 | 491.2 GWh |