How big is Oberon Solar Project?

Oberon Solar Project is a hybrid solar and battery storage facility with 375 MW of EIA-reported operating capacity in Riverside County, California, registered as EIA Plant ID 65734. Intersect described the Oberon Solar + Storage facility as the first project to achieve operation through the streamlined Bureau of Land Management Desert Renewable Energy Conservation Plan approach. Its grid role is co-located solar generation with battery storage; the sources support the facility configuration but do not establish a more specific dispatch role.

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Overview

Key fields

Reported capacity: 375 MW
EIA-reported plant capacity; other capacity bases are withheld pending reconciliation.
Technology: Solar + battery storage
Primary generation technology.
Registry anchor: Plant 65734
Riverside County · CAISO
Operating status: Operating
Oberon Solar Project is operating.
Grid connection: Red Bluff Substation
500 kV · Southern California Edison (SCE)

Profile

Grid role: Co-located solar generation with battery storage; the sources support the facility configuration but do not establish a more specific dispatch role.
Grid connection: Red Bluff Substation · 500 kV · Southern California Edison (SCE).
Context: Intersect described the Oberon Solar + Storage facility as the first project to achieve operation through the streamlined Bureau of Land Management Desert Renewable Energy Conservation Plan approach.
Physical build: EIA plant 65734 is an operational solar-and-battery plant with two generating units totaling 375 MW. The associated Oberon 1 build comprises a 339 MWdc photovoltaic facility, a 500 kV substation and generation tie, and a 250 MWac four-hour BESS. The broader Oberon facility is reported at approximately 500 MWac/679–684 MWp of solar capacity with 250 MW/1 GWh of storage. Physical infrastructure includes PV array fields with single-axis trackers, inverter-transformer stations, electrical collection, substation, gen-tie, O&M/SCADA/telecommunications facilities, and access roads. Suppliers identified for the exact project are First Solar modules, TMEiC inverters, Nextracker NX Horizon trackers, and Tesla batteries. A project description states that each inverter-transformer station contains up to six inverters and a battery enclosure, but the total number of stations and installed units is not disclosed; therefore exact module, inverter, battery-unit, and container counts cannot be established.

Structured profile

Reported capacity: 375 MW
Batteries, Solar Photovoltaic
Operating status: operating
Oberon Solar Project is operating.
Interconnection: Red Bluff Substation
500 kV · Southern California Edison (SCE)
Location: Riverside County
CAISO
Operator

Units and generators

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

Generator	Capacity	Technology	Operation	Status
OBIBS	125 MW 125 MW summer	Batteries Electricity used for energy storage · BA	Sep 2023	Operating
OBIPV	250 MW 250 MW summer	Solar Photovoltaic Solar · PV	Sep 2023	Operating

Performance

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

Peer context

Technology capacity: 250 MW
National rank: #76
CA rank: #16

Monthly generation

Download CSV

Latest 12 months

601.5 GWh

Reported net generation

Latest report

Apr 2026

EIA-923 monthly filing

2025 capacity factor

17.7%

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

RED BLUFF

IN SERVICE · 500 kV

7.4 km

UNKNOWN300795

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

Offtake Agreement

Nov 2, 2024

A later CCA clean-energy PPA compilation lists San Diego Community Power's IP Oberon standalone-solar contract at 75 MW with a 15-year term. This differs from the 150 MW capacity listed in the 2021 approval record and may reflect a later contract listing or scope change.

75 MW contracted15 yearsIP Oberon II, LLC · San Diego Community Power

CCA Long-Term Clean Energy Power Purchase Agreements

Offtake Arrangements

Nov 14, 2023

Intersect stated that the Oberon project's energy, renewable energy credits, and resource adequacy would be purchased by a combination of offtakers. The release did not disclose buyer-specific contracted capacities or agreement durations.

Calpine Energy Solutions · Constellation · Ava Community Energy · Microsoft · San Diego Community Power

Intersect | Intersect Reaches Commercial Operation of 679 MWp / 1 GWh…

Land and environmental record

Construction Water Use

Construction water use estimated at 700 acre-feet total

Project findings estimate up to 700 acre-feet during construction, primarily for dust suppression and soil compaction, with smaller amounts for sanitation and other purposes.

Source

Dated Regulatory Project Area

Mar 18, 2021

Approximately 4,700 acres of BLM-administered land in the initial CEQA project application

The 2021 Notice of Preparation described an application covering approximately 4,700 acres of BLM-administered land, with fewer than 3,000 acres expected to be developed with solar panels. This is a dated regulatory project-area figure and should not replace the later approximately 2,600-acre operating footprint.

Source

Land Authorization

Jan 13, 2022

BLM right-of-way authorization for construction, operation, maintenance, and decommissioning

The BLM approval authorized Oberon Solar LLC to construct, operate, maintain, and decommission the photovoltaic facility on BLM-managed land.

BLM approves Oberon Solar Project | Bureau of Land Management

Operational Water Use

Operations water use estimated at 40 acre-feet per year

The project findings estimate approximately 40 acre-feet of annual water use during the project's 35- to 50-year service life. Water would be obtained from an on-site or off-site groundwater well in the Chuckwalla Valley Groundwater Basin.

Source

Regulated Water Resource Impact

Dec 14, 2021

Authorized permanent impact to approximately 57.23 acres of waters of the state

The WDR order authorizes impacts to waters of the state up to the quantities shown in its tables, including approximately 57.23 acres of permanent habitat impact.

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

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AssetOwner / operatorOrganizationContractorOfftaker

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Sep 2023
Sep 2023
Generators enter operationEIA-860
EIA-860 lists generator OBIBS, generator OBIPV with this operating date.
Nov 14, 2023
Nov 14, 2023
Commercial Operation Announcement

Reporting portfolio

EIA reporting entity

IP Oberon LLC

Entity 67582

Operating portfolio

6 plants

2 states

Reported capacity

2,378.8 MW

Batteries · Solar Photovoltaic

Largest reported plants in this portfolio
Largest reported plants	Capacity	State
Lumina Solar Project	486.6 MW	TX
Lumina II Solar Project	486.6 MW	TX
Oberon Solar ProjectCurrent	375 MW	CA
Oberon II Solar Project	375 MW	CA
Blythe Mesa Solar II	335.6 MW	CA
IP Radian, LLC	320 MW	TX

Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.

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Oberon Solar Project

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Oberon Solar Project

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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

Timeline and sources

Project timeline

Parties and identifiers

Reporting portfolio

Sources

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Co-located assets

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