AES Lawai Solar Hybrid — Plant Summary
- EIA Plant ID
- 61068
- Capacity
- 40 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries, Solar Photovoltaic
- Status
- Operating
- Location
- Kauai, HI
- Operating Since
- 2018
- Generators
- 2
- Operator
- AES Distributed Energy
- Parent Company
- AES
- Annual Generation
- 40,226 MWh
- Capacity Factor
- 11.5%
- Balancing Authority
- —
- ISO/RTO
- —
- NERC Region
- —
AES Lawai Solar Hybrid
OperatingBESSSolarHybrid
Ranked #9 of 14 BESS plants in HI#418 of 837 nationally
40 MW Batteries (20 MW) + Solar Photovoltaic (20 MW) operating in Kauai, HI
EIAGEMWD
40 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2018
Operating Since
Location
Coordinates
21.9082, -159.4920
County
Kauai, HI
Nearby Plants
- KRS II Koloa SolarBESS24 MW · 4.4 km
- Kalaheo HydroHydro2 MW · 4.9 km
- Biomass to Energy Facility, KauaiDistillate Oil10.3 MW · 7.1 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | AES Distributed Energy | AES | — |
| Owner(s) | AES Distributed Energy | AES | — |
| Status | Operating | operating | — |
Ownership Chain
About
AES Lawai Solar Hybrid is a 40 MW hybrid power plant located in Kauai County, Hawaii. The plant, which began operating in 2018, is owned and operated by AES Distributed Energy, a subsidiary of AES. It utilizes both solar photovoltaic technology with single-axis tracking and battery energy storage. The battery energy storage system (BESS) has a capacity of 100 MWh, providing 5 hours of duration and employing lithium-ion battery (LIB) chemistry. The plant is ranked 9th out of 20 power plants in Hawaii and 629th out of 1205 nationally.
The plant's primary fuel source is listed as "MWH" in the data, which likely refers to the solar energy converted into megawatt-hours. In its latest year of reported generation, AES Lawai Solar Hybrid produced 40,226 MWh, resulting in a capacity factor of 11.5%. Financial data is available for the plant from sources such as Lawrence Berkeley National Laboratory (LBNL).
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
—
Balancing Authority
—
Grid Voltage
57 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
2.1K MWh
Net Discharge
40.2K MWh
Annual Net Energy
11.5%
Capacity Factor
Jan 2023 – Dec 2025
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.
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$115.0/MWh
LCOE (Levelized Cost)
$172.7/MWh
Energy Value
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (6)Beta
Hazards·flooding
Flood Watch: Niihau; Kauai Southwest; Kauai Mountains; Kauai North; Kauai East; Kauai South
Flood Watch issued March 21 at 3:53AM HST until March 22 at 6:00PM HST by NWS Honolulu HI
Flood Watch (hazard)
NWS Honolulu HI·5 days ago
Deals·ppa
Hawaiian utility contracts for solar-plus-storage projects from AES
Kauaʻi Island Utility Cooperative will pay up to $133.40/MWh and $127/MWh for power from the two projects, which will displace higher cost oil-fired generation.
Kauaʻi Island Utility Cooperative (buyer)AES (seller)
Utility Dive·1 years ago
Regulatory·ferc order
FERC OKs MISO Hybrid Resource Accreditation Plan
FERC on Tuesday approved MISO's two-part plan to get hybrid resources accredited for participation in the RTO's capacity auctions.
FERC (regulator)MISO (operator)
RTO Insider·4 years ago
Industry·technology
Solar Systems Integration Basics
Learn the basics of how solar energy technologies integrate with electrical grid systems through these resources from the DOE Solar Energy Office.
DOE (other)
Department of Energy (.gov)·5 years ago
Last updated 2026-03-21
View all 6 articles