Power plants in the Hawaiian Electric balancing area
The Hawaiian Electric balancing area takes in 23 power plants with 894 MW of nameplate capacity, the 40th-largest of the 40 areas covered here. All of its plants are in Hawaii. Solar makes up 48% of the mix, and the largest plant is Kapolei Energy Storage (185 MW). Since 2020, 661 MW has come online here, 62% of it battery storage.
- Solar430 MW48%
- Battery storage408 MW46%
- Biomass and waste50.4 MW5.6%
- Hydroelectric5.8 MW0.6%
Capacity by decade it came online
HydroelectricSolarBattery storageBiomass and waste
Above the line: capacity operating in 2025. Below: capacity retired at plants that still run.
The 23 largest plants in the area
| Rank | Plant | State | Runs on | Capacity | First unit |
|---|---|---|---|---|---|
| 1 | Kapolei Energy Storage | Hawaii | Battery storage | 185 MW | 2023 |
| 2 | AES Maui Kuihelani Solar Hybrid | Hawaii | Battery storage | 120 MW | 2024 |
| 3 | Ho’Ohana Solar 1 | Hawaii | Solar | 117 MW | 2025 |
| 4 | Hale Kuawehi Solar Hybrid | Hawaii | Solar | 74 MW | 2025 |
| 5 | Waiawa Solar Power Hybrid | Hawaii | Battery storage | 72 MW | 2023 |
| 6 | AES Waikoloa Solar Hybrid | Hawaii | Battery storage | 60 MW | 2023 |
| 7 | Schofield Generating Station | Hawaii | Biomass and waste | 50.4 MW | 2018 |
| 8 | Kawailoa Solar | Hawaii | Solar | 49 MW | 2019 |
| 9 | Waipio Solar | Hawaii | Solar | 45.9 MW | 2019 |
| 10 | EE Waianae Solar Project | Hawaii | Solar | 28.3 MW | 2017 |
| 11 | AES West Oahu Solar Hybrid | Hawaii | Battery storage | 25 MW | 2024 |
| 12 | West Loch Solar One | Hawaii | Solar | 20 MW | 2019 |
| 13 | Lanikuhana Solar LLC | Hawaii | Solar | 14.7 MW | 2019 |
| 14 | Waipio Peninsula | Hawaii | Solar | 11 MW | 2015 |
| 15 | BYU - Hawaii | Hawaii | Solar | 5 MW | 2021 |
| 16 | Kaheka Hydro | Hawaii | Hydroelectric | 4.5 MW | 1925 |
| 17 | Kihei Solar Farm | Hawaii | Solar | 2.9 MW | 2018 |
| 18 | Ku’ia Solar | Hawaii | Solar | 2.9 MW | 2018 |
| 19 | BRE - Ritz Carlton Kapalua | Hawaii | Solar | 1.5 MW | 2025 |
| 20 | Mauna Loa Macadamia Nut | Hawaii | Solar | 1.3 MW | 2021 |
| 21 | Paia Hydroelectric Plant | Hawaii | Hydroelectric | 1.3 MW | 1912 |
| 22 | Kapolei Solar Energy Park | Hawaii | Solar | 1 MW | 2012 |
| 23 | Pearl City Peninsula Solar Park | Hawaii | Solar | 1 MW | 2012 |
States
| State | Plants | Capacity |
|---|---|---|
| Hawaii | 23 | 894 MW |
Operators with the most capacity
| Operator | Plants | Capacity |
|---|---|---|
| AES Distributed Energy | 3 | 205 MW |
| Kapolei Energy Storage I, LLC | 1 | 185 MW |
| Ho’Ohana Solar 1 LLC | 1 | 117 MW |
| Hale Kuawehi Solar LLC | 1 | 74 MW |
| Waiawa Solar Power LLC | 1 | 72 MW |
| Hawaiian Electric Co Inc | 2 | 70.4 MW |
| Kawailoa Solar, LLC | 1 | 49 MW |
| Waipio PV, LLC | 1 | 45.9 MW |
| EE Waianae Solar Project LLC | 1 | 28.3 MW |
| Lanikuhana Solar LLC | 1 | 14.7 MW |