Aquamarine — 250 MW solar farm, Kings County, CA

Aquamarine — 250 MW solar farm, Kings County, CA · Ask the Grid

Generation and physical site

EIA plant 62547 · Inventory for Sep 2026.

Reported operating nameplate by technology

Solar: 250 MW

Operating generators only. Battery power is in MW; stored energy is in MWh. These ratings do not establish a shared export limit.

Generator records (1)

EIA generator status and nameplate capacity for Aquamarine
Generator	Technology	Status	Power (MW)	Energy (MWh)
AQUAM	Solar Photovoltaic	Operating	250	Unknown

Physical map location · OpenStreetMap: 36.19312, -119.89631
Filed location · EIA: 36.18972, -119.90420

Sources and observation dates

Inventory source: EIA-860M workbook (preliminary)
EIA reporting month: Sep 2026
EIA retrieved: Oct 24, 2026
OSM extract: Oct 9, 2026
OSM last mapped edit: Feb 19, 2023
Map prepared: Oct 24, 2026
Field verification: Not reported

Reporting month describes the inventory. Retrieval and map preparation describe processing; an OSM edit does not establish an in-service date.

EIA source inventory

Units and generators

Current generator records and technology attributes reported through EIA-860.

Generator	Capacity	Technology	Operation	Status
AQUAM	250 MW 250 MW summer	Solar Photovoltaic PV	Sep 2021	Operating

Commercial, land, and environmental record

Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.

Financing

Financial Close

May 24, 2021

CIM Group announced that debt and tax equity financing had closed for the exact 250 MW Aquamarine project. Deutsche Bank was identified as lead arranger of the debt financing.

250 MW contractedCIM Group · Deutsche Bank

CIM Group’s Aquamarine, 250-megawatt Solar Photovoltaic Project at Westlands Solar Park, Set to Be Fully Operational by Fall 2021

Transactions and agreements

PPA Approval And Offtake

Feb 13, 2020

Valley Clean Energy Alliance approved a PPA with Aquamarine Westside, LLC for a 50 MW share of the 250 MW Aquamarine project. The approved term was 15 years.

50 MW contracted15 yearsValley Clean Energy Alliance · Aquamarine Westside, LLC

Source

PPA Offtake

May 25, 2021

Aquamarine entered into a PPA with the City of Santa Clara's municipal utility, Silicon Valley Power, for renewable energy certificates associated with 75 MW of capacity. The agreement duration and dollar value were not disclosed in the cited announcement.

75 MW contractedAquamarine Westside, LLC · City of Santa Clara · Silicon Valley Power

CIM Group’s Aquamarine, 250-megawatt Solar Photovoltaic Project at Westlands Solar Park, Set to Be Fully Operational by Fall 2021

Land and environmental record

Land Condition And Reuse

2014-2018

Selenium-contaminated and drainage-impaired agricultural farmland

The project repurposes contaminated, drainage-impaired farmland in California's Central Valley; the owner's project materials specifically identify selenium contamination. The land was re-entitled for renewable-energy use between 2014 and 2018.

Turning Contaminated Farmland into Clean Energy | Aquamarine Solar Project

Land-Use Permit

May 2019

Conditional Use Permit 17-04

Kings County's project notice describes a 250 MW photovoltaic solar generating facility with an operations-and-maintenance building, substation, access drives, and interconnection/gen-tie line on approximately 1,825 acres.

Source

Site Acreage

Feb 15, 2022

1,825 acres

The approved Aquamarine Solar Project site is approximately 1,825 acres; a related facility description gives a broader 1,825–2,000-acre range for drainage-impaired farm ground.

Aquamarine NOD

Stormwater Compliance

2017

SWPPP-based stormwater and erosion controls

The project description calls for Stormwater Pollution Prevention Plans with runoff-control and hazardous-waste-management best management practices, monitoring, and reporting procedures.

Project Description

Water-Quality Permit

Sep 22, 2020

WDID 5C16CR00021

The Central Valley Regional Water Quality Control Board lists Aquamarine Westside LLC's Westlands Aquamarine Solar Project under this Notice of Applicability for Clean Water Act Section 401 water-quality certification coverage, issued September 22, 2020.

401 Water Quality Certifications | Central Valley Water Quality Control Board

Mapped facility footprint

Mapped infrastructure geometry associated with this asset.© OpenStreetMap contributors · relation/14292452

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

2014
2014
Land-rights acquisition for Westlands developmentTurning Con...
CIM and a joint-venture partner obtained rights to acquire more than 20,000 acres of drainage-impaired Central Valley farmland for clean-energy development. The source does not identify a separate acquisition of Aquamarine or a seller.
2020
2020
Construction StartedCIM Group C...
Construction of the 250 MW Aquamarine project began as the first utility-scale project in Westlands Solar Park.
Feb 13, 2020
Feb 13, 2020
Power Purchase AgreementSource
Valley Clean Energy Alliance approved a PPA with Aquamarine Westside, LLC for a 50 MW share of the 250 MW Aquamarine project. The approved term was 15 years.
View 1 more milestoneHide 1 milestone
1. May 2021
  May 2021
  Debt and tax-equity financing closedCIM Group’s...
  CIM announced that debt and tax-equity financing had closed; Deutsche Bank acted as lead arranger of the debt financing.
Sep 2021
Sep 2021
Generator enters operationEIA-860
EIA-860 lists generator AQUAM with this operating date.
Dec 2021
Dec 2021
Construction concluded and facility became fully operationalTurning Con...
CIM reported that construction concluded at year-end 2021, on time and on budget, and that Aquamarine became fully operational.
Feb 1, 2022
Feb 1, 2022
Completion and commercial-operation celebrationCIM Group C...
CIM held a public event commemorating completion and commercial operation of the 250 MW project.

Sources

PublisherReferenceType

U.S. Energy Information AdministrationEIA-860 generator inventoryFederal registry

U.S. Energy Information AdministrationEIA-923 generation filingsFederal filing

cimgroup.comCIM Group | An Alternative Approach to Creating Valueother

Common questions about Aquamarine

Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.

How big is Aquamarine?

Aquamarine reports 250 MW solar of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.

What kind of plant is Aquamarine?

Aquamarine is a Solar Photovoltaic facility in Kings County, CA, participating in the CAISO market.

Where is Aquamarine located?

Aquamarine is in Kings County, CA, inside the CAISO balancing area.

Who operates Aquamarine?

Aquamarine is operated by Aqua according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Aquamarine generate?

Aquamarine reported 644.9 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.

Where does Aquamarine connect to the grid?

Aquamarine interconnects at Gates, on the Pacific Gas and Electric Company system.

How does Aquamarine compare to other plants?

By capacity, Aquamarine ranks #86 of 7,597 operating plants of the same technology nationally. It ranks #17 of 972 in CA.

Co-located assets

Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.

Solar BlueBatteries, Solar PhotovoltaicBatteries, Solar Photovoltaic · same type475 MW2.2 km AlmondSolar PhotovoltaicSolar Photovoltaic · same type20 MW2.5 km Mustang TwoSolar PhotovoltaicSolar Photovoltaic · same type150 MW2.6 km Westside Solar Power PV1Solar PhotovoltaicSolar Photovoltaic · same type

Overview

Overview

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Infrastructure record

Profile

Structured profile

Generation and physical site

Reported operating nameplate by technology

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Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Nearby substations