This is a list of electricity-generating power stations in the U.S. state of Hawaii, sorted by type and name. In 2024, Hawaii had a total summer capacity of 3.4 GW through all of its power plants, and a net generation of 9,161 GWh. The utility-scale electrical energy generation mix in 2025 was 74.5% petroleum-derived fuels, 10.3% solar, 6.1% wind, 2.7% geothermal, 2% biomass, 0.9% hydroelectric, and 3.4% other. Hawaii's one geothermal plant, which previously supplied about 2% of the state's and 10% of the Big Island's electricity, was offline during 2019 to repair damage from the 2018 lower Puna eruption. The plant came back online in late 2020, slowly ramping up to its full operational level.

Small-scale distributed solar including customer-owned photovoltaic panels delivered an additional 1,641 GWh to the six separate electrical grids serving Hawaii's major islands in 2025. This was about 70 percent more than the amount generated by the state's utility-scale photovoltaic plants. Considering large and small installations together, solar produced almost one-fifth of Hawaii's electricity in 2023. In 2021, solar energy accounted for three-fifths of Hawaii's electricity generation by renewables.

The state's renewable portfolio standard is the most ambitious in the U.S. at 30% of capacity by 2020, ramping to 100% by 2045. The large dependence on imported petroleum liquids contributes to Hawaii having the highest average retail electricity prices of any U.S. state. The island of Hawaii generates 52.1% renewable energy and reached a peak of 92.3% on April 25, 2023.

Fossil-fuel power stations Data from the U.S. Energy Information Administration serves as a general reference.

Coal Hawaii closed its last coal-fired power plant in September 2022. AES Hawai‘i was a 180 MW coal-fired power plant.Power Facts, Hawaii Electric, March 2024

Petroleum Name Location Coordinates Capacity(MW) Technology Yearopened Refs Campbell Industrial Park Honolulu County 113 Simple cycle 2009 Gay Robinson Kauai County 1.0 Reciprocating engine (x2) 2010 Hamakua Energy Plant Hawaii County 66 2x1 combined cycle 2000 Hana Substation Maui County 2.0 Reciprocating engine (x2) 2001 Hawaii Cogen Honolulu County 12.2 Simple cycle (x4) 1990/2011 Kahe Honolulu County 609.7 Steam turbine (x6) 1963-1981 Kahului Maui County 34 Steam turbine (x4) 1954-1966 Kalaeloa Cogen Plant Honolulu County 299.4 2x1 combined cycle 1989/1991 Kanoelehua Hawaii County 21 Simple cycle,reciprocating engine 1962,1972 Kapaia Power Station(KIUC) Kauai County 39.1 Simple cycle 2002 Keahole Hawaii County 89.1 Reciprocating engine (x3),simple cycle,2x1 combined cycle 1984/1988,1989,2004/2009 Maalaea Maui County 229.8 Reciprocating engine (x15),2x1 combined cycle (x2) 1971–1989,1993/2006 Miki Basin Maui County 10.2 Reciprocating engine (x8) 1990/1996 Palaau Power Hybrid Maui County 14 Reciprocating engine (x9),simple cycle 1985–1996, Port Allen Kauai County 99.5 Reciprocating engine (x9),steam turbine,simple cycle (x2) 1964–1991,1969,1973/1977 Puna Hawaii County 39.1 Steam turbine,simple cycle 1988,1992 Tesoro Hawaii Honolulu County 20 Simple cycle 1982 W H Hill Hawaii County 37.1 Reciprocating engine (x3) 1965/1974 Waiau Honolulu County 474.6 Steam turbine (x6),simple cycle (x2) 1947–1968,1973 Waimea Hawaii County 7.5 Reciprocating engine (x3) 1970/1972 Campbell burned biomass liquids exclusively from 2011 to 2017, and shifted to primarily burn distillate fuel oil by 2019. Kapaia station's GE LM2500 gas turbine primarily burned jet fuel from its commissioning until 2008 and has since shifted to burn a mixture of other petroleum distillates.

Retired Name Location Coordinates Capacity(MW) Technology Years Refs Honolulu Oahu County 113 1954-2014 Hawaiian Electric to deactivate Honolulu Power Plant, Hawaii News Now, September 3, 2013 Shipman Hawaii County 15.2 1920s-2015

Natural gas Hawaii had no utility-scale power plants primarily fueled by fossil gas in 2024.

Renewable power stations Data from the U.S. Energy Information Administration serves as a general reference.

Biomass and municipal waste Name Location Coordinates Capacity(MW) Primary fuel Technology Yearopened Refs Biomass to Energy Facility, Kauai Kauaʻi County 6.7 Biofuel,wood Reciprocating engine (x2),steam turbine 2014,2016 H Power Honolulu County 97.3 Municipal solid waste(biogenic and non-biogenic) Steam turbine (x2) 1989/2013 HNL Emergency Power FacilityDaniel K. Inouye International Airport Honolulu County 10 Biofuel Reciprocating engine (x4) 2017 Schofield Generating Station Honolulu County 50.4 Biofuel Reciprocating engine (x6) 2018

Geothermal Name Location Coordinates Capacity(MW) Technology Yearopened Refs Puna Geothermal Venture I Hawaii County 38 Flash steam cycle (x10),binary cycle (x2) 1992,2012 The plant was shut down shortly after the start of the May 2018 lower Puna eruption. The plant was repaired and back online by late 2020.

Hydroelectric Name Location Coordinates Capacity(MW) Number ofturbines Yearopened Refs Gay Robinson Kauai County 8.7 2 1982/2019 Kaheka Hydro Maui County 4.5 3 1925 Kalaheo Hydro Kauai County 2.0 1 2016 Paia Hydroelectric Plant Maui County 1.3 1 1912 Puueo Hawaii County 3.1 2 1918/2005 Waiau Hydro Hawaii County 1.0 2 1921/1928 Wailuku River Hydroelectric Hawaii County 10.4 2 1993 Wainiha Hydro Kauai County 3.6 2 1906/2010

Solar photovoltaic

Name Location Coordinates Capacity(MWAC) Yearopened Refs Aloha Solar Energy Fund 1 and 2 Honolulu County 10 2017 EE Waianae Solar Project Honolulu County 27.6 2017 Kalaeloa Renewable Energy Park Honolulu County 5.0 2014 Kalaeloa Solar Two Honolulu County 5.0 2012 Kapaa Photovoltaic Project Kauai County 1.0 2010 Kapolei Solar Energy Park Honolulu County 1.0 2012 Kawailoa Solar Honolulu County 49 2019 Kekaha Solar Kauai County 14 2019 Kihei Solar Farm Maui County 2.9 2018 KIUC Kapaia PV Kauai County 13 2017 KRS I Anahola Solar Hybrid Kauai County 12 2015 KRS II Koloa Solar Kauai County 12 2014 Ku'ia Solar Maui County 2.9 2018 Kuihelani Solar Maui County 60 2024 AES Hawai‘i begins operations of the state’s largest solar facility, Honolulu Star Advertiser, June 10, 2024 Kūpono Solar Honolulu County 42 2024 Lanai Solar-Electric Plant Maui County 1.2 2008 Lanikuhana Solar LLC Honolulu County 14.7 2019 Lawai Solar Hybrid Kauai County 20 2018 Mauka FIT 1 Honolulu County 3.5 2020 Mililani Solar I Honolulu County 39 2022 Clearway completes 39-MW solar, 156-MWh storage project on O’ahu, Solar Power World, Kelly Pickerel, August 11, 2022 Pearl City Peninsula Solar Park Honolulu County 1.0 2012 Port Allen Solar Kauai County 6.0 2012 Waihonu North Solar Honolulu County 5.0 2016 Waihonu South Solar Honolulu County 1.5 2016 Waikoloa Solar + Storage Hawaii County302023 Waipio Solar Honolulu County 49.9 2019 Waiawa Solar Honolulu County 36 2023 West Loch Solar One Honolulu County 20 2019

Wind

+Wind power in Hawaii Name Location Coordinates Capacity(MW) Number ofturbines Yearopened Refs Auwahi Wind Energy Hybrid Maui County 24 8 2012 Hawi Wind Farm Hawaii County 10.6 16 2006 Kaheawa Wind Power Maui County 30 20 2006 Kaheawa Wind Power II Maui County 21 14 2012 Kahuku Wind Power Honolulu County 30 12 2011 Kawailoa Wind Honolulu County 69 30 2012 Lalamilo WellsHawaii County3.352017Nā Pua Makani Honolulu County 2482021 Pakini Nui Wind Farm Hawaii County 21 14 2007

Nuclear power stations Hawaii had no utility-scale power plants fueled by fissile material in 2024.

Battery storage facilities Name Location Coordinates Dischargecapacity(MW) Storagecapacity(MWh) Yearopened Refs Anahola Solar Hybrid Kauai County 6 4.6 2015 Auwahi Wind Storage(A123 BESS) Maui County 11 4.4 2012 Campbell Industrial Park BESS Honolulu County(Kapolei) 1.0 0.25 2016 Hawi Wind BESS Hawaii County 1.0 0.25 2012 Kaheawa Wind II Storage Maui County 10 20 2012 Kapolei Energy Storage Honolulu County 185 565 2023 Pioneering 565-MWh battery storage facility now online in Hawai’i, Plus Power says, Utility Dive, January 16, 2024 KIUC Kapaia PV Storage(Tesla BESS) Kauai County 13 52 2017 Kūpono Solar Storage Honolulu County 168 2024 Kuihelani Solar Storage Maui County 240 2024 Lawai Solar Storage(AES Lawai Solar Hybrid) Kauai County 20 100 2018 Palaau Power Hybrid(Molokaii BESS) Maui County 2.0 0.375 2017 Waiawa Solar Storage Honolulu County 36 144 2023 New central Oʻahu solar and battery farm said to benefit 7,600 homes, Hawaiʻi Public Radio, January 13, 2023 Waikoloa Solar + Storage Hawaii County 30 120 2023 AES Corp.’s Waikoloa Solar + Storage Project online, Hawaii Electric, May 1, 2023 Battery storage power stations stabilize an electrical grid against fluctuations in solar and wind generation for periods extending from less than a minute to as long as several hours.

See also

List of power stations in the United States

References