How big is Panoche Energy Center?

Panoche Energy Center has a reported capacity of 432 MW. Source: EIA Form 860.

What kind of plant is Panoche Energy Center?

Panoche Energy Center is a Natural Gas Fired Combustion Turbine facility in Fresno County, CA, participating in the CAISO market.

Where is Panoche Energy Center located?

Panoche Energy Center is in Fresno County, CA, inside the CAISO balancing area.

Who operates Panoche Energy Center?

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

How much electricity does Panoche Energy Center generate?

Panoche Energy Center reported 650.4 GWh over the twelve months to 2026-04. Figures are net generation as filed to EIA-923.

Where does Panoche Energy Center connect to the grid?

Panoche Energy Center interconnects at Panoche Substation, on the Pacific Gas and Electric Company system.

How does Panoche Energy Center compare to other plants?

By capacity, Panoche Energy Center ranks #109 of 825 operating plants of the same technology nationally. It ranks #6 of 136 in CA.

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Natural Gas Fired Combustion TurbineCAISO · Fresno County

Panoche Energy Center

Ares Energy Investors Fund V L.P. · Fresno County · CAISO

Panoche Energy Center is a natural gas-fired power facility with 432 MW of EIA-reported nameplate capacity in Fresno County, California, registered as EIA Plant ID 56803. Panoche Energy Center, LLC owns and operates the plant, a subsidiary of EIF Panoche LLC. Panoche Energy Center is described as the largest LMS100 peaking facility in the United States. Its four fast-start GE LMS100 turbines were dispatched by Pacific Gas and Electric Company for regional power supply and grid-stabilization needs.

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plant:plant-56803

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

Overview

Key fields

Reported capacity: 432 MW
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Technology: Natural Gas Fired Combustion Turbine
Primary generation technology.
Registry anchor: Plant 56803
Panoche Energy Center, LLC · Fresno County · CAISO
Operating status: Operating
Panoche Energy Center is operating.
Grid connection: Panoche Substation
230 kV · Pacific Gas and Electric Company

Profile

Grid role: Peaking generation
Grid connection: Panoche Substation · 230 kV · Pacific Gas and Electric Company.
Context: Panoche Energy Center is described as the largest LMS100 peaking facility in the United States. Its four fast-start GE LMS100 turbines were dispatched by Pacific Gas and Electric Company for regional power supply and grid-stabilization needs.
Physical build: 400 MW natural-gas-fired simple-cycle generating facility in western Fresno County consisting of four General Electric LMS100 combustion turbine generators and associated equipment. Each CTG has water injection, selective catalytic reduction with aqueous ammonia injection, and an oxidation catalyst. Auxiliary systems include inlet-air foggers and evaporative coolers, a step-up transformer, compressed-air system, control enclosures, aqueous-ammonia storage, natural-gas fuel system, water treatment and storage, wastewater systems, and site stormwater drainage.

Structured profile

Reported capacity: 432 MW
Natural Gas Fired Combustion Turbine
Operating status: operating
Panoche Energy Center is operating.
Interconnection: Panoche Substation
230 kV · Pacific Gas and Electric Company
Location: Fresno County
CAISO
Operator

Units and generators

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

Generator	Capacity	Technology	Operation	Status
1	108 MW 97 MW summer	Natural Gas Fired Combustion Turbine Natural Gas · GT	Jun 2009	Operating
2	108 MW 97 MW summer	Natural Gas Fired Combustion Turbine Natural Gas · GT	Jul 2009	Operating
3	108 MW 97 MW summer	Natural Gas Fired Combustion Turbine Natural Gas · GT	Jun 2009	Operating
4	108 MW

Performance

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

Peer context

Technology capacity: 432 MW
National rank: #109
CA rank: #6

Monthly generation

Download CSV

Latest 12 months

650.4 GWh

Reported net generation

Latest report

Apr 2026

EIA-923 monthly filing

2025 capacity factor

20.1%

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

PANOCHE

IN SERVICE · 230 kV

0.2 km

CHENEY

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 Executed

Apr 2006

APEX Power Group LLC signed a contract for 400 MW of dispatchable gas-fired generation in April 2006 following PG&E's competitive request for offers. The project's PPA was a 20-year power purchase and tolling arrangement.

400 MW contracted20 yearsAPEX Power Group LLC · Pacific Gas and Electric Company · Panoche Energy Center LLC

Top Plant: Panoche Energy Center, Firebaugh, California

Land and environmental record

Cooling Water Source

2010

Brackish groundwater makeup; ultrafiltration, two-pass reverse osmosis, and mixed-bed demineralization

Project uses brackish aquifer water rather than potable water for cooling-tower makeup. Treatment train includes ultrafiltration, two-pass reverse osmosis, and mixed-bed demineralizer.

Top Plant: Panoche Energy Center, Firebaugh, California

Emissions Controls

SCR with 19% aqueous ammonia, oxidation catalyst, water injection, and CEMS

Each combustion turbine uses combustor water injection for NOx reduction, selective catalytic reduction with 19% aqueous ammonia for additional NOx control, oxidation catalyst for CO control, and CEMS measurement of NOx and CO.

Panoche Energy Center

Parcel And Lease

2006

128-acre underlying parcel owned by PG&E; 12.8-acre plant site leased by developer

The 12.8-acre plant site is leased by the developer within a 128-acre parcel owned by Pacific Gas and Electric Company.

Top Plant: Panoche Energy Center, Firebaugh, California

Plant Site Area

2006

12.8-acre plant site

The plant site is a 12.8-acre area within a larger 128-acre parcel. This is the developed facility footprint, distinct from the parcel ownership.

Top Plant: Panoche Energy Center, Firebaugh, California

Renewed Uic Permit

Oct 31, 2022

UIC permit R9UIC-CA1-FY17-2R; maximum six wells IW1-IW6

EPA issued the renewed Class I nonhazardous-waste UIC permit. It authorizes operation of IW1-IW4 and potential construction and operation of IW5-IW6 without increasing total authorized injection volume.

R9UIC-CA1-FY17-2R: Panoche Energy Center LLC, Firebaugh, CA | US EPA

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 / operatorContractorOrganizationOfftaker

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Dec 2004
Dec 2004
Project Procurement OriginTop Plant: ...
The project originated after the California Public Utilities Commission authorized Pacific Gas and Electric Company to plan and procure reliable generation for its service territory.
Mar 18, 2005

Panoche Energy Center

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Panoche Energy Center

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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

Common questions about Panoche Energy Center

How big is Panoche Energy Center?

What kind of plant is Panoche Energy Center?

Where is Panoche Energy Center located?

Who operates Panoche Energy Center?

How much electricity does Panoche Energy Center generate?

Where does Panoche Energy Center connect to the grid?

How does Panoche Energy Center compare to other plants?

Co-located assets

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