How big is CA Flats Solar 150, LLC?

CA Flats Solar 150, LLC has a reported capacity of 150 MW and an energy capacity of 240 MWh. Source: EIA Form 860.

What kind of plant is CA Flats Solar 150, LLC?

CA Flats Solar 150, LLC is a Solar Photovoltaic facility in San Luis Obispo County, CA, participating in the CAISO market.

Where is CA Flats Solar 150, LLC located?

CA Flats Solar 150, LLC is in San Luis Obispo County, CA, inside the CAISO balancing area.

Who operates CA Flats Solar 150, LLC?

CA Flats Solar 150, LLC is operated by Arevon Energy, Inc. according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does CA Flats Solar 150, LLC generate?

CA Flats Solar 150, LLC reported 283.4 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.

How does CA Flats Solar 150, LLC compare to other plants?

By capacity, CA Flats Solar 150, LLC ranks #266 of 7,234 operating plants of the same technology nationally. It ranks #49 of 939 in CA.

CA Flats Solar 150, LLC — 150 MW solar farm, CA

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CA Flats Solar 150, LLC — 150 MW solar farm, CA · Ask the Grid

Overview

Power / energy: 150 MW / 240 MWh
Reported plant capacity and configuration.
Technology: Solar Photovoltaic
Primary generation technology.
Registry anchor: Plant 60034
Arevon Energy, Inc. · San Luis Obispo County · CAISO
Storage duration: 4 hours
Battery subsystem rating.
Operating status: Operating
CA Flats Solar 150, LLC is operating.

Profile

Grid role: Utility-scale solar generation serving the CAISO grid, with associated battery storage that stores energy during peak solar hours and dispatches it during periods of peak demand.
Physical build: CA Flats Solar 150, LLC is the 150 MW second phase of the 280 MWAC California Flats photovoltaic project and has one operational 150 MW solar generating unit. The broader California Flats site was built with photovoltaic modules, pad-mounted inverters and transformers, and later received a co-located 60 MW/240 MWh battery-storage system using 84 Tesla Megapack units.

Structured profile

Reported capacity: 150 MW
Solar Photovoltaic
Energy: 240 MWh
4-hour storage duration
Operating status: operating
CA Flats Solar 150, LLC is operating.
Location: San Luis Obispo County
CAISO
Operator: Arevon Energy, Inc.

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Units and generators

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

Generator	Capacity	Technology	Operation	Status
GEN01	150 MW 150 MW summer	Solar Photovoltaic Solar · PV	Feb 2019	Operating

Performance

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

Peer context

Technology capacity: 150 MW; Solar Photovoltaic
National rank: #266; of 7,234 operating peers
CA rank: #49; of 939 operating peers

Monthly generation

Download CSV

Latest 12 months

283.4 GWh

Reported net generation

Latest report

Jun 2026

EIA-923 monthly filing

2025 capacity factor

23.2%

Using current reported nameplate capacity

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

CHOLAME

IN SERVICE · 66 kV

10.0 km

UNKNOWN307440

Commercial, land, and environmental record

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

Land and environmental record

Environmental Approval

Feb 10, 2015

Monterey County Final EIR / DRC2014-00016 approval

The California Flats Solar Project Final EIR is identified as DRC2014-00016. The Monterey County Board of Supervisors approved the project on February 10, 2015.

California Flats Solar Project Final EIR; (DRC2014-00016)

Federal Wildlife Permit

Feb 3, 2020

USFWS 30-year incidental eagle-take permit

The U.S. Fish and Wildlife Service issued a long-term Bald and Golden Eagle Protection Act permit covering recurring loss of breeding productivity at two golden-eagle territories from project operations, maintenance, and habitat loss. The permit is effective from February 3, 2020 through February 3, 2050.

California Flats Solar Project Eagle Permits NEPA Documents

Project Site Acreage And Parcel Record

Approximately 3,000-acre project site comprising 43 parcels

Official California environmental records place the California Flats Solar Project at 35°51'27.47"N, 120°18'19"W, in Monterey County. The record identifies 43 parcels and approximately 3,000 total acres.

California Flats Solar Project - CEQAnet

Wetland And Clean Water Act Resource

Approximately 37.52 acres of potentially jurisdictional aquatic resources

The project environmental assessment identifies approximately 37.52 acres of aquatic resources within the biological study area that may be subject to Clean Water Act Section 404, including ephemeral, intermittent, and perennial streams and culverts. Mitigation documents require avoidance and minimization where feasible and a wetland mitigation and monitoring plan targeting no net loss of acreage or function.

Source

Wildlife Mitigation Land

Approximately 6,204 acres of off-site golden-eagle mitigation land

The long-term eagle-permit environmental assessment identifies an approximately 2,510-hectare, or 6,204-acre, parcel group directly south of the project for permanent preservation, management, and enhancement of golden-eagle habitat.

Source

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

Drag organizations to explore the network. Select a node to pin its details and available page link.

AssetOfftaker

Parties and identifiers

OrganizationRoleBasis

plant:plant-60034Grid selectionCanonical asset page /assets/facilities/ca-flats-solar-150-llc.

Reporting portfolio

EIA reporting entity

Arevon Energy, Inc.

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

2015
2015
First Solar acquired the California Flats projectCapital Dyn...
First Solar acquired the project and subsequently completed its development and construction.
Aug 2017
Aug 2017

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CA Flats Solar 150, LLC