Aquamarine — Plant Summary
- EIA Plant ID
- 62547
- Capacity
- 250 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Kings, CA
- Operating Since
- 2021
- Generators
- 1
- Operator
- Aquamarine Westside LLC
- Parent Company
- —
- Annual Generation
- 662,406 MWh
- Capacity Factor
- 30.2%
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Aquamarine
OperatingSolar
Ranked #44 of 963 Solar plants in CA#232 of 7447 nationally
250 MW Solar operating in Kings, CA — California Independent System Operator
EIAGEMWD
250 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2021
Operating Since
Location
Coordinates
36.1925, -119.9042
County
Kings, CA
Nearby Plants
- Solar BlueBESS475 MW · 2.1 km
- AlmondSolar19.9 MW · 2.2 km
- Mustang TwoSolar150 MW · 2.5 km
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Aquamarine Westside LLC | CIM Group | — |
| Owner(s) | Aquamarine Westside LLC | CIM Group [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as CIM Group [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
Aquamarine is a 250 MW solar photovoltaic power plant located in Kings County, California. The plant, which began operating in 2021, has a single generator and utilizes single-axis tracking. It is owned and operated by Aquamarine Westside LLC. Aquamarine is connected to the California Independent System Operator (CAISO) balancing authority and is within the Western Electricity Coordinating Council (WECC) NERC region.
In its latest year of operation, Aquamarine generated 662,406 MWh of electricity, achieving a capacity factor of 30.2%. The plant ranks as the 12th largest solar facility in California out of 59, and 138th nationally out of 639. Financial data indicates a power purchase agreement (PPA) price of $30.77 per MWh.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
12.9K MWh
Latest Month
662.4K MWh
Annual Generation
30.2%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$37.8/MWh
LCOE (Levelized Cost)
$30.8/MWh
PPA Price
$4.5/MWh
Energy Value
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
CAISO
LMP Node
AQUAWS_7_N002
Pricing Hub
TH_ZP26_GEN-APND
Location Type
Pricing Node
Node Source
EIA-860 direct report
News & Articles (7)Beta
Industry·technology
Fuel-cell energy storage added to Hungary’s Aquamarine project
The current development phase, known as Aquamarine Plus, adds the missing link by enabling the reconversion of hydrogen into electricity.
Hungary (other)
ceenergynews·3 months ago
Industry·corporate
Westlands Solar Park, California, United States of America
The 2.7GW Westlands Solar Park, one of the world's largest solar power plants, is being developed in the San Joaquin Valley in California, US.
Westlands Solar Park (developer)California (other)
Power Technology·5 years ago
Industry·corporate
Aquamarine Power boosted by European Union grant
Aquamarine Power is boosted by a £580000 EU grant to help it accelerate the development of commercial wave energy technology.
Aquamarine Power (developer)European Union (other)
BBC·10 years ago
Industry·technology
Catching Waves and Turning Them Into Electricity (Published 2015)
Ocean waves seem a promising source of renewable energy but remain largely experimental, though companies have developed various designs...
The New York Times·10 years ago
Last updated 2026-03-14
View all 7 articles