How big is Cordova Energy?

Cordova Energy has a reported capacity of 611.2 MW. Source: EIA Form 860.

What kind of plant is Cordova Energy?

Cordova Energy is a Natural Gas Fired Combined Cycle facility in Rock Island County, IL, participating in the PJM market.

Where is Cordova Energy located?

Cordova Energy is in Rock Island County, IL, inside the PJM balancing area.

Who operates Cordova Energy?

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

How much electricity does Cordova Energy generate?

Cordova Energy reported 1,150.3 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.

Where does Cordova Energy connect to the grid?

Cordova Energy interconnects at TSS 940 Cordova 345 kV substation, on the Commonwealth Edison (ComEd) system.

How does Cordova Energy compare to other plants?

By capacity, Cordova Energy ranks #129 of 538 operating plants of the same technology nationally. It ranks #4 of 8 in IL.

Cordova Energy — 611 MW gas plant, Rock Island County, IL

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Cordova Energy — 611 MW gas plant, Rock Island County, IL · Ask the Grid

Overview

Reported capacity: 611.2 MW
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Technology: Natural Gas Fired Combined Cycle
Primary generation technology.
Registry anchor: Plant 55188
Cordova Energy Co LLC · Rock Island County · PJM
Operating status: Operating
Cordova Energy is operating.
Grid connection: TSS 940 Cordova 345 kV substation
345 kV · Commonwealth Edison (ComEd)
Project financing: $225.0M
On September 10, 1999, Cordova Funding Corporation, a wholly owned MidAmerican Energy Holdings subsidiary, closed $225.0 million of aggregate-principal-amount financing for construction of the Cordova Project and loaned the proceeds to Cordova Energy.

Profile

Grid role: PJM capacity resource
Grid connection: TSS 940 Cordova 345 kV substation · 345 kV · Commonwealth Edison (ComEd).
Physical build: Natural-gas combined-cycle plant comprising two Siemens-Westinghouse 501FD combustion turbines, two Deltak heat-recovery steam generators, and one Toshiba condensing steam-turbine generator rated at approximately 180 MW gross.
Financing: On September 10, 1999, Cordova Funding Corporation, a wholly owned MidAmerican Energy Holdings subsidiary, closed $225.0 million of aggregate-principal-amount financing for construction of the Cordova Project and loaned the proceeds to Cordova Energy.

Structured profile

Reported capacity: 611.2 MW
Natural Gas Fired Combined Cycle
Operating status: operating
Cordova Energy is operating.
Interconnection: TSS 940 Cordova 345 kV substation
345 kV · Commonwealth Edison (ComEd)
Location: Rock Island County
PJM
Operator: Cordova Energy Co LLC

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Units and generators

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

Generator	Capacity	Technology	Operation	Status
PT11	210 MW 165 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Jun 2001	Operating
PT21	210 MW 165 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Jun 2001	Operating
PT31	191.2 MW 191.2 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CA	Jun 2001	Operating
PTII	230.4 MW 165 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Jun 2001	Operating

Performance

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

Peer context

Technology capacity: 841.6 MW; Natural Gas Fired Combined Cycle
National rank: #129; of 538 operating peers
IL rank: #4; of 8 operating peers

Monthly generation

Download CSV

Latest 12 months

1.15 TWh

Reported net generation

Latest report

Dec 2024

EIA-923 monthly filing

2024 capacity factor

21.4%

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

UNKNOWN122188

IN SERVICE · 345 kV

0.2 km

UNKNOWN122189

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

EPC Contract

Date not disclosed

EPC contractor responsible for engineering, procurement, and construction of a $208 million, 530 MW combined-cycle plant in Illinois.

$208.0M530 MW contractedCordova Energy Company LLC

Source

PPA Acceptance And Assignment

Sep 11, 2001

Illinois regulatory filing states Cordova entered into a multi-year tolling power sales agreement with El Paso Merchant Energy, L. P. fully committing all capacity and energy from Cordova Facility. FERC accepted agreement by letter order dated September 11, 2001; agreement was later assigned to a subsidiary of Exelon Corporation.

Cordova Energy Company LLC · El Paso Merchant Energy, L.P. · Exelon Corporation

Source

Capacity Offtake Agreement

Aug 4, 2025

MidAmerican Energy Company and Cordova entered into a one-year capacity purchase agreement for MidAmerican to purchase 100% of MISO Zonal Resource Credits generated by Cordova's combined-cycle plant for the 2027-2028 MISO Planning Year. Pricing tied to MISO Planning Resource Auction clearing price for MISO Resource Adequacy Zone 3.

1 yearsMidAmerican Energy Company · Cordova Energy Company LLC

Source

Land and environmental record

Cooling Water Source

Nov 5, 2025

Four on-site groundwater wells supply the cooling tower

The 2025 Illinois EPA NPDES fact sheet states that groundwater from four on-site wells is used for the cooling tower.

NPDES Permit No. IL0074438 Notice No. SAJ:25010601.docx Public Notice Beginning Date: November 5, 2025 Public Notice Ending Date: December 05,

County Appraisal Record

PIN 010305200001; appraised valuation $3,816,512 (historical record)

Rock Island County taxpayer records list Cordova Energy Company against parcel/PIN 010305200001 with a listed valuation of $3,816,512. Also appears in historical taxing body records as PIN 061805313015 with valuation $4,264,187.

Source

NPDES Permit

Nov 5, 2025

NPDES Permit IL0074438

Illinois EPA issued a draft reissued NPDES permit for Cordova Energy Company LLC at 24712 192nd Avenue North, Cordova, Illinois 61242. Public-notice period ran from November 5 through December 5, 2025. Final permit issue and effective dates not stated in retrieved notice.

NPDES Permit No. IL0074438 Notice No. SAJ:25010601.docx Public Notice Beginning Date: November 5, 2025 Public Notice Ending Date: December 05,

Permitted Discharge Flow

Nov 5, 2025

1.01 MGD total plant effluent; 0.9 MGD cooling-tower blowdown; 0.075 MGD low-volume waste

2025 draft NPDES fact sheet identifies average flows of 1.01 million gallons per day at outfall 001 (total plant effluent), 0.9 MGD at internal outfall A01 (cooling-tower blowdown), and 0.075 MGD at internal outfall B01 (low-volume waste).

NPDES Permit No. IL0074438 Notice No. SAJ:25010601.docx Public Notice Beginning Date: November 5, 2025 Public Notice Ending Date: December 05,

Reported Greenhouse Gas Emissions

2024

2024 CO2e emissions: 476,660 tCO2e (Unit 1: 249,089 tCO2e; Unit 2: 227,571 tCO2e)

Illinois EPA's 2024 CEJA emissions report lists Cordova Energy Company Unit 1 at 249,089 tons CO2e and Unit 2 at 227,571 tons CO2e for a combined 476,660 tons CO2e.

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.

AssetOwner / operatorOfftakerEquipment

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

1999
1999
Project company formation and construction startMidAmerican...
Cordova Energy Company was formed to manage construction and day-to-day operation of the Cordova Energy Center. Construction began in fall 1999 under MidAmerican Energy Holdings.
Jun 2001

Cordova Energy

Cordova Energy

Overview

Profile

Structured profile

Related assets

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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

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Parties and identifiers

Reporting portfolio

Sources

Common questions about Cordova Energy

How big is Cordova Energy?

What kind of plant is Cordova Energy?

Where is Cordova Energy located?

Who operates Cordova Energy?

How much electricity does Cordova Energy generate?

Where does Cordova Energy connect to the grid?

How does Cordova Energy compare to other plants?

Co-located assets