How big is Golden Field Solar III, LLC?

Golden Field Solar III, LLC has a reported capacity of 339 MW and an energy capacity of 588 MWh. Source: EIA Form 860.

What kind of plant is Golden Field Solar III, LLC?

Golden Field Solar III, LLC is a Batteries, Solar Photovoltaic facility in Kern County, CA, participating in the CAISO market.

Where is Golden Field Solar III, LLC located?

Golden Field Solar III, LLC is in Kern County, CA, inside the CAISO balancing area.

Who operates Golden Field Solar III, LLC?

Golden Field Solar III, LLC is operated by Golden Fields Solar III, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Golden Field Solar III, LLC generate?

Golden Field Solar III, LLC reported 535.3 GWh over the twelve months to 2026-04. Figures are net generation as filed to EIA-923.

How does Golden Field Solar III, LLC compare to other plants?

By capacity, Golden Field Solar III, LLC ranks #206 of 7,234 operating plants of the same technology nationally. It ranks #36 of 939 in CA.

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Batteries, Solar PhotovoltaicCAISO · Kern County

Golden Field Solar III, LLC

Clearway Energy Group, LLC · Kern County · CAISO

Golden Field Solar III, LLC is a hybrid solar and battery storage facility with 339 MW of EIA-reported total operating capacity and 588 MWh of reported storage energy capacity in Kern County, California, registered as EIA Plant ID 63859. Golden Fields Solar III, LLC is the registered plant entity or operator. McCarthy Building Companies built the facility using Wärtsilä GridSolv Quantum equipment. Rosamond Solar Investment LLC, a subsidiary of Clearway Energy, Inc. acquired a 50% interest in the plant from Renew Development HoldCo LLC in 2020. Commercial operation began on January 5, 2021.

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plant:plant-63859

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Investigate technology, capacity, output, price behavior, ownership, and related facilities using this profile plus current grid data.

Overview

Key fields

Generation / storage: 339 MW total / 588 MWh storage
Reported plant capacity and configuration.
Technology: Solar + battery storage
Primary generation technology.
Registry anchor: Plant 63859
Golden Fields Solar III, LLC · Kern County · CAISO
Storage duration: 4 hours
Battery subsystem rating.
Operating status: Operating
Golden Field Solar III, LLC is operating.
Commercial operation: January 5, 2021
Best-supported operating milestone.

Profile

Grid role: Solar generation paired with a four-hour battery system that stores solar-generated electricity for dispatch during peak-demand periods and supports grid reliability.
Context: Rosamond Central BESS is Clearway’s first battery-energy-storage retrofit in California.

Structured profile

Reported capacity: 339 MW
Batteries, Solar Photovoltaic
Energy: 588 MWh
4-hour storage duration
Commercial operation: January 5, 2021
Operating status: operating
Golden Field Solar III, LLC is operating.
Location

Units and generators

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

Generator	Capacity	Technology	Operation	Status
RCBA	147 MW 147 MW summer	Batteries Electricity used for energy storage · BA	Mar 2024	Operating
RCTR	192 MW 192 MW summer	Solar Photovoltaic Solar · PV	Dec 2020	Operating

Performance

Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.

Peer context

Technology capacity: 192 MW
National rank: #206
CA rank: #36

Monthly generation

Download CSV

Latest 12 months

535.3 GWh

Reported net generation

Latest report

Apr 2026

EIA-923 monthly filing

2025 capacity factor

17.5%

Grid and market context

Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.

Nearby substations

HIFLD infrastructure inventory

UNKNOWN309406

IN SERVICE

0.1 km

UNKNOWN304399

Commercial, land, and environmental record

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

Transactions and agreements

Power Purchase Agreement

Feb 25, 2020

Golden Fields Solar III contracted to sell 26 MW to the City of Palo Alto for a 25-year base term; deliveries were scheduled to begin January 1, 2023. The municipal approval documents describe extension options that could bring the delivery term to up to 40 years.

26 MW contracted25 yearsGolden Field Solar III, LLC · City of Palo Alto

Source

Land and environmental record

CEQA Environmental Review

CEQA EIR reported complete; conditional-use-permit documentation marked as applicable if required

The Golden Fields contract materials identify documentation of a conditional-use permit if required and mark an EIR as complete. No conditional-use permit number or other exact permit identifier is stated in the available excerpt.

GOLDEN FIELDS

Related parties and identifiers

Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.

Relationship graph

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AssetOwner / operator

Parties and identifiers

OrganizationRoleBasis

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Feb 2020
Feb 2020
Solar Construction BeganClearway Co...
Construction of the 192 MW Rosamond Central solar project began in February 2020 and was led by McCarthy Building Companies.
Mar 11, 2020

Golden Field Solar III, LLC

Ask about Golden Field Solar III, LLC

Golden Field Solar III, LLC

Ask about Golden Field Solar III, LLC

Overview

Key fields

Profile

Structured profile

Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Nearby substations

Commercial, land, and environmental record

Transactions and agreements

Land and environmental record

Related parties and identifiers

Relationship graph

Parties and identifiers

Timeline and sources

Project timeline

Reporting portfolio

Sources

Common questions about Golden Field Solar III, LLC

How big is Golden Field Solar III, LLC?

What kind of plant is Golden Field Solar III, LLC?

Where is Golden Field Solar III, LLC located?

Who operates Golden Field Solar III, LLC?

How much electricity does Golden Field Solar III, LLC generate?

How does Golden Field Solar III, LLC compare to other plants?

Co-located assets

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