25 MW Batteries (13 MW) + Solar Photovoltaic (13 MW) operating in Honolulu, HI — Hawaiian Electric Co Inc
25 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2024
Operating Since
Coordinates
21.3720, -158.0620
County
Honolulu, HI
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | AES Distributed Energy | AES Distributed Energy | — |
| Owner(s) | AES Distributed Energy | — | — |
| Status | Operating | operating | — |
AES West Oahu Solar Hybrid is a 25 MW hybrid power plant located in Honolulu County, Hawaii. The plant, which began operating in 2024, is owned and operated by AES Distributed Energy. It utilizes both solar photovoltaic technology and battery storage, with a 50 MWh battery energy storage system (BESS) providing 4 hours of duration. The BESS uses lithium-ion battery (LIB) chemistry. The solar array employs a fixed-tilt tracking system.
The plant's primary fuel source is listed as MWH. In its most recent year of operation, AES West Oahu Solar Hybrid generated 22,134 MWh of electricity, achieving a capacity factor of 10.1%. The plant operates within the Hawaiian Electric Co Inc balancing authority. AES West Oahu Solar Hybrid is ranked as the 14th largest power plant out of 20 in Hawaii, and 670th out of 1205 nationally. Financial data is available for the plant, sourced from LBNL Solar.
Generated from EIA, GEM, and public data sources
NERC Region
—
Balancing Authority
Hawaiian Electric Co Inc
Grid Voltage
46 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
1.3K MWh
Net Discharge
22.1K MWh
Annual Net Energy
10.1%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Flash Flood Warning: Oahu in Honolulu, HI
Flash Flood Warning issued March 21 at 8:40AM HST until March 21 at 11:00AM HST by NWS Honolulu HI
Flood Watch: Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; M
Flood Watch issued March 21 at 3:53AM HST until March 22 at 6:00PM HST by NWS Honolulu HI
Last updated 2026-03-21
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