United States › Power plants › Battery storage › Hawaii
BATTERY STORAGEKapolei Energy Storage
Kapolei Energy Storage is a 185 MW operating battery storage site in Honolulu County, Hawaii, operated by Kapolei Energy Storage I, LLC. Its batteries store up to 565 MWh.
Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| KES1 | Batteries | 185 MW 565 MWh |
Plant details
- Operator
- Kapolei Energy Storage I, LLC
- Location
- Honolulu County, Hawaii
- Balancing authority
- HECO
- Sector
- IPP Non-CHP
- Capacity
- Operating: 185 MW
- First unit online
- Dec 2023
- EIA plant ID
- 66067
Location
21.3284, -158.1052
Nearby power plants
- Kapolei Solar Energy ParkSolar farms · 1.0 MW · 0.9 mi
- Kalaeloa Solar TwoSolar farms · 5.0 MW · 1.3 mi
- Kalaeloa Home Lands SolarSolar farms · 1.7 MW · 1.7 mi
- Campbell Industrial ParkOil-fired power plants · 113 MW · 1.8 mi
- Kalaeloa Cogen PlantOil-fired power plants · 299 MW · 1.9 mi
- Tesoro HawaiiOil-fired power plants · 20.0 MW · 2.0 mi
- H PowerBioenergy plants, Solar farms · 100 MW · 2.0 mi
- KaheOil-fired power plants · 610 MW · 2.5 mi
- AES West Oahu Solar HybridSolar farms, Battery storage · 25.0 MW · 4.1 mi
- Kalaeloa Renewable Energy ParkSolar farms · 5.0 MW · 4.2 mi
Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem