How big is Kola Energy Center?

Kola Energy Center has a reported capacity of 400 MW. Source: EIA Form 860.

What kind of plant is Kola Energy Center?

Kola Energy Center is a batteries facility in San Joaquin County, CA, participating in the CAISO market.

Where is Kola Energy Center located?

Kola Energy Center is in San Joaquin County, CA, inside the CAISO balancing area.

Who operates Kola Energy Center?

Kola Energy Center is operated by Kola Energy Storage, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Kola Energy Center generate?

Kola Energy Center reported 382.6 GWh over the twelve months to 2026-06. For a storage plant this is reported gross generation — a discharge proxy, not a cycle count or a conventional capacity factor.

Where does Kola Energy Center connect to the grid?

Kola Energy Center interconnects at PG&E Tesla Substation, on the Pacific Gas & Electric Company (PG&E) system.

How does Kola Energy Center compare to other plants?

By capacity, Kola Energy Center ranks #5 of 962 operating plants of the same technology nationally. It ranks #4 of 248 in CA.

Kola Energy Center — 400 MW battery storage, CA

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Kola Energy Center — 400 MW battery storage, CA · Ask the Grid

Overview

Reported capacity: 400 MW
EIA-reported operating capacity; nameplate, seasonal, AC/DC, and unit ratings may differ.
Technology: Batteries
Primary generation technology.
Registry anchor: Plant 67680
Kola Energy Storage, LLC · San Joaquin County · CAISO
Operating status: Operating
Kola Energy Center is operating.
Grid connection: PG&E Tesla Substation
230 kV · Pacific Gas & Electric Company (PG&E)
Equipment: 500 battery units
Installed equipment documented in public project records.

Profile

Grid role: Flexible, transmission-connected battery storage supporting local system reliability, renewable-energy integration, and grid flexibility.
Grid connection: PG&E Tesla Substation · 230 kV · Pacific Gas & Electric Company (PG&E).
Physical build: A 400-MW battery energy storage system comprising 500 free-standing batteries, a collector substation, inverters, collector lines, fencing, access roads, supervisory control and data acquisition equipment, and a 230-kV generation-tie line to PG&E’s Tesla Substation.

Structured profile

Reported capacity: 400 MW
Batteries
Operating status: operating
Kola Energy Center is operating.
Interconnection: PG&E Tesla Substation
230 kV · Pacific Gas & Electric Company (PG&E)
Location: San Joaquin County
CAISO
Operator: Kola Energy Storage, LLC

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Units and generators

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

Generator	Capacity	Technology	Operation	Status
KOLA	275 MW 275 MW summer	Batteries Electricity used for energy storage · BA	Aug 2025	Operating
KOLA2	125 MW 125 MW summer	Batteries Electricity used for energy storage · BA	Aug 2025	Operating

Performance

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

Peer context

Technology capacity: 400 MW; Batteries
National rank: #5; of 962 operating peers
CA rank: #4; of 248 operating peers

Monthly generation

Download CSV

Latest 12 months

382.6 GWh

Reported gross generation

Latest report

Jun 2026

EIA-923 monthly filing

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

TESLA

IN SERVICE · 500 kV

0.9 km

ELLIS

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 Amendment

Mar 21, 2024

CPUC Resolution E-5312 approved amendment to PG&E's Kola contract changing initial delivery date from June 1, 2024 to June 1, 2025 due to PTO interconnection network-upgrade delays. Project price increased; amended price not disclosed in public resolution. Amendment addresses industry-wide delays and inflationary pressures beyond Kola's control.

275 MW contracted15 yearsPacific Gas & Electric Company · Kola Energy Storage, LLC

Source

Land and environmental record

Environmental Permit Amendment

Aug 22, 2024

CESA Minor Amendment No. 1 approved August 22, 2024; 2.44-acre temporary laydown area; underground gen-tie conversion; 2.44-acre habitat management increase

August 2024 CESA amendment authorized 2.44-acre temporary laydown area, converted approximately 1,700 feet of gen-tie from aboveground to underground, and increased required habitat-management lands by 2.44 acres. NOD posted August 29, 2024 with approval shown August 22, 2024.

Kola Energy Storage Project California Endangered Species Act (CESA) Incidental Take Permit No. 2081-2081-042-03 (ITP); Minor Amendment #1

Environmental Permit Term

Mar 5, 2024

CESA permit covers approximately 15-month construction phase and 35-year O&M phase (2025-2060); decommissioning and repowering excluded

CESA permit authorizes construction phase (approximately 15 months, anticipated 2024-2025) and O&M phase (35 years, anticipated 2025-2060). Permit explicitly does not cover decommissioning or repowering activities, which require separate authorization if they affect covered species or habitat.

Source

Land Use And Environmental Approval

Mar 12, 2024

Site Approval PA-2200137 approved by San Joaquin County Board of Supervisors; EIR No. PA-2400016

San Joaquin County Board of Supervisors approved Site Approval PA-2200137 on March 12, 2024. Environmental Impact Report No. PA-2400016 and Williamson Act Contract Cancellation No. PA-2300251 associated. Approves 400 MW BESS facility within 32-acre area on 106-acre property.

Site Approval No. PA-2200137, Environmental Impact Report No. PA-2400016, & Williamson Act Contract Cancellation No. PA-2300251

Land Use Contract Cancellation

Mar 12, 2024

Williamson Act Contract No. 77-C1-255; 40-acre cancellation PA-2300251

Project required cancellation of Williamson Act contract on 40-acre portion to accommodate BESS and related improvements. San Joaquin County approved cancellation application PA-2300251 effective March 12, 2024.

Site Approval No. PA-2200137, Environmental Impact Report No. PA-2400016, & Williamson Act Contract Cancellation No. PA-2300251

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.

AssetOrganizationOfftaker

Parties and identifiers

OrganizationRoleBasis

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Sep 2021
Sep 2021
Initial project application and ownershipKola Energy...
Kola Energy Storage, LLC submitted the project application as a wholly owned indirect subsidiary of NextEra Energy Resources. The proposal described a 400 MW first phase and a possible additional 300 MW second phase.
Apr 21, 2022

Kola Energy Center