# Calumet Energy Team LLC

PJM Natural Gas Fired Combustion Turbine · https://askthegrid.com/assets/facilities/calumet-energy-team-llc

Calumet Energy Team LLC is a natural gas-fired power facility with 312.8 MW of EIA-reported nameplate capacity in Cook County, Illinois, registered as EIA Plant ID 55296. Calumet Energy Team LLC is the public owner or developer; IPA Operations Inc - Calumet is the registered plant entity or operator. The plant's generating configuration is two operating natural-gas-fired combustion-turbine units, CT11 and CT12.

## Key facts

- Technology: Natural Gas Fired Combustion Turbine
- Power capacity: 312.8 MW
- Operating status: operating

## Grid and market context

- ISO/RTO: PJM
- Balancing authority: PJM Interconnection, LLC (PJM)

## Source-backed facts

- Description: Calumet Energy Team LLC is an operating natural-gas-fired simple-cycle peaking plant in Chicago, Cook County, Illinois. The plant has 312.8 MW of nameplate capacity across two 156.4-MW generators, CT11 and CT12, recorded as operating from June 2002. It operates in the PJM market and is operated by IPA Operations Inc - Calumet. — MBR | Index · confidence: medium
- Canonical name: Calumet Energy Team LLC — MBR | Index · confidence: high
- Identifiers.0: {"value":"55296","system":"EIA plant code"} — MBR | Index · confidence: high
- Identifiers.1: {"value":"CT11","system":"EIA generator ID"} — MBR | Index · confidence: high
- Identifiers.2: {"value":"12938","system":"EIA generator record ID"} — MBR | Index · confidence: medium
- Identifiers.3: {"value":"CT12","system":"EIA generator ID"} — MBR | Index · confidence: high
- Identifiers.4: {"value":"12939","system":"EIA generator record ID"} — MBR | Index · confidence: medium
- Identifiers.6: {"value":"EG05-70-000","system":"FERC exempt wholesale generator docket"} — Federal Register :: Calumet Energy Team, LLC, et al.; Electric Rate and Corporate Filings · confidence: high
- Identifiers.7: {"value":"ER02-2001","system":"FERC electric-rate docket"} — eLibrary | Document Information · confidence: medium
- Identifiers.8: {"value":"031600GHA","system":"Illinois EPA BOA ID"} — Source · confidence: high
- Identifiers.9: {"value":"03030094","system":"Illinois EPA CAAPP permit"} — Source · confidence: high
- Parties.2: {"relationship":"Operator","name":"IPA Operations Inc - Calumet","official_url":null} — MBR | Index · confidence: high
- Product url: https://www.siemens-energy.com/global/en/home/products-services/product-offerings/gas-turbines.html — Aeroderivative, Industrial and Heavy-Duty Gas Turbines · confidence: medium
- Significance: Calumet Energy Team is a Chicago simple-cycle natural-gas peaking plant developed to provide local peak capacity, including a 10-year reservation agreement with the City of Chicago for 50 MW. It operates in PJM and currently comprises 312.8 MW of nameplate capacity across two operating generators. — Source · confidence: medium
- Quality notes: ["Historical sources report approximately 303 MW, 308 MW, and 312.8 MW; these figures reflect different reporting conventions and vintages rather than separate nearby facilities.","The $856.4 million 2008 figure covered Calumet and three other plants, and the $3.3 billion 2017 figure covered ENGIE's entire U.S. generation portfolio; neither amount is a Calumet-specific sale price.","The current operating record shows two operating generators totaling 312.8 MW; no separate expansion, retirement, or repowering milestone is included in the timeline."] — Global Monitor (June 2008) · confidence: medium
- Quality notes: ["Historical sources report approximately 303 MW, 308 MW, and 312.8 MW; these figures reflect different reporting conventions and vintages rather than separate nearby facilities.","The $856.4 million 2008 figure covered Calumet and three other plants, and the $3.3 billion 2017 figure covered ENGIE's entire U.S. generation portfolio; neither amount is a Calumet-specific sale price.","The current operating record shows two operating generators totaling 312.8 MW; no separate expansion, retirement, or repowering milestone is included in the timeline."] — Power plant profile: Calumet Power Plant, US · confidence: medium
- Financing summary: Construction records reported approximately $155 million of anticipated total project cost in 2001 and approximately $159 million of total plant investment in 2002. Wisconsin Energy/Wisvest sold the facility to Tenaska Power Fund for approximately $37.0 million in cash effective 2005-05-31. Tenaska's 2008 sale of Calumet as part of a four-plant package to International Power was announced at $856.4 million in aggregate, with no Calumet-specific allocation disclosed. Dynegy's 2017 acquisition of ENGIE's U.S. portfolio was announced at $3.3 billion in aggregate, also without a Calumet-specific allocation. — Source · confidence: medium
- Financing summary: Construction records reported approximately $155 million of anticipated total project cost in 2001 and approximately $159 million of total plant investment in 2002. Wisconsin Energy/Wisvest sold the facility to Tenaska Power Fund for approximately $37.0 million in cash effective 2005-05-31. Tenaska's 2008 sale of Calumet as part of a four-plant package to International Power was announced at $856.4 million in aggregate, with no Calumet-specific allocation disclosed. Dynegy's 2017 acquisition of ENGIE's U.S. portfolio was announced at $3.3 billion in aggregate, also without a Calumet-specific allocation. — Global Monitor (June 2008) · confidence: medium
- Timeline: [{"event":"Project development and municipal agreements","date":"1999-11","detail":"Calumet Energy Team LLC signed two agreements with the City of Chicago supporting construction of a 308 MW natural-gas-fired peaking plant and reserving 50 MW of capacity for ten years. Wisvest owned 100% of the project company and was identified as developer and intended operator."},{"event":"Turnkey construction contract","date":"2000-07","detail":"Siemens Westinghouse agreed to supply a turnkey 308 MW simple-cycle plant for the Calumet Energy Project, using two nominally 154 MW V84.3A natural-gas turbines."},{"event":"Construction and startup","date":"2001","detail":"Wisvest reported that construction was complete and startup was in progress, with anticipated total project cost of approximately $155 million and commercial operation expected in early 2002."},{"event":"Commercial operation","date":"2002-05-31","detail":"The plant began commercial operation in 2002; an EIA-derived plant record gives 2002-05-31, while contemporaneous company reporting describes the plant as entering service in June 2002."},{"event":"Sale by predecessor owner","date":"2005-05-31","detail":"Wisconsin Energy/Wisvest sold the Calumet facility and related operating contracts to Tenaska Power Fund, L.P. for approximately $37.0 million in cash."},{"event":"Agreement to sell to International Power","date":"2008-05","detail":"Tenaska Power Fund announced an agreement to sell the 303 MW Calumet Energy Power Station and three other generating facilities to International Power plc for an aggregate $856.4 million. Calumet was the facility solely owned by Tenaska in the package; the three other plants were jointly owned with Warburg Pincus."},{"event":"Acquisition by International Power","date":"2008-07-30","detail":"Calumet Energy Team was acquired by International Power; the reported closing date was July 30, 2008."},{"event":"Transfer through ENGIE and Dynegy portfolio transactions","date":"2017-02-07","detail":"Dynegy completed its acquisition of ENGIE's 9,017 MW U.S. generation portfolio for $3.3 billion; the announced portfolio list included Calumet in Chicago, PJM."},{"event":"Transfer to Vistra through Dynegy merger","date":"2018-04-09","detail":"Vistra completed its merger with Dynegy, bringing Dynegy's Calumet-related generation assets into Vistra's portfolio."},{"event":"Current operating configuration","date":"2026-08-02","detail":"The plant is recorded as operational in PJM with 312.8 MW of nameplate capacity, 326.1 MW of summer capacity, 352 MW of winter capacity, and two operating gas generators."}] — Global Monitor (June 2008) · confidence: medium
- Timeline: [{"event":"Project development and municipal agreements","date":"1999-11","detail":"Calumet Energy Team LLC signed two agreements with the City of Chicago supporting construction of a 308 MW natural-gas-fired peaking plant and reserving 50 MW of capacity for ten years. Wisvest owned 100% of the project company and was identified as developer and intended operator."},{"event":"Turnkey construction contract","date":"2000-07","detail":"Siemens Westinghouse agreed to supply a turnkey 308 MW simple-cycle plant for the Calumet Energy Project, using two nominally 154 MW V84.3A natural-gas turbines."},{"event":"Construction and startup","date":"2001","detail":"Wisvest reported that construction was complete and startup was in progress, with anticipated total project cost of approximately $155 million and commercial operation expected in early 2002."},{"event":"Commercial operation","date":"2002-05-31","detail":"The plant began commercial operation in 2002; an EIA-derived plant record gives 2002-05-31, while contemporaneous company reporting describes the plant as entering service in June 2002."},{"event":"Sale by predecessor owner","date":"2005-05-31","detail":"Wisconsin Energy/Wisvest sold the Calumet facility and related operating contracts to Tenaska Power Fund, L.P. for approximately $37.0 million in cash."},{"event":"Agreement to sell to International Power","date":"2008-05","detail":"Tenaska Power Fund announced an agreement to sell the 303 MW Calumet Energy Power Station and three other generating facilities to International Power plc for an aggregate $856.4 million. Calumet was the facility solely owned by Tenaska in the package; the three other plants were jointly owned with Warburg Pincus."},{"event":"Acquisition by International Power","date":"2008-07-30","detail":"Calumet Energy Team was acquired by International Power; the reported closing date was July 30, 2008."},{"event":"Transfer through ENGIE and Dynegy portfolio transactions","date":"2017-02-07","detail":"Dynegy completed its acquisition of ENGIE's 9,017 MW U.S. generation portfolio for $3.3 billion; the announced portfolio list included Calumet in Chicago, PJM."},{"event":"Transfer to Vistra through Dynegy merger","date":"2018-04-09","detail":"Vistra completed its merger with Dynegy, bringing Dynegy's Calumet-related generation assets into Vistra's portfolio."},{"event":"Current operating configuration","date":"2026-08-02","detail":"The plant is recorded as operational in PJM with 312.8 MW of nameplate capacity, 326.1 MW of summer capacity, 352 MW of winter capacity, and two operating gas generators."}] — Calumet Energy Team 2026 Company Profile · confidence: medium
- Timeline.0: {"event":"Project development and municipal agreements","date":"1999-11","detail":"Calumet Energy Team LLC signed two agreements with the City of Chicago supporting construction of a 308 MW natural-gas-fired peaking plant and reserving 50 MW of capacity for ten years. Wisvest owned 100% of the project company and was identified as developer and intended operator."} — Source · confidence: medium
- Timeline.3: {"event":"Commercial operation","date":"2002-05-31","detail":"The plant began commercial operation in 2002; an EIA-derived plant record gives 2002-05-31, while contemporaneous company reporting describes the plant as entering service in June 2002."} — Global Monitor (June 2008) · confidence: medium
- Timeline.5: {"event":"Agreement to sell to International Power","date":"2008-05","detail":"Tenaska Power Fund announced an agreement to sell the 303 MW Calumet Energy Power Station and three other generating facilities to International Power plc for an aggregate $856.4 million. Calumet was the facility solely owned by Tenaska in the package; the three other plants were jointly owned with Warburg Pincus."} — Global Monitor (June 2008) · confidence: high
- Timeline.6: {"event":"Acquisition by International Power","date":"2008-07-30","detail":"Calumet Energy Team was acquired by International Power; the reported closing date was July 30, 2008."} — Calumet Energy Team 2026 Company Profile · confidence: medium
- Quality notes.0: Historical sources report approximately 303 MW, 308 MW, and 312.8 MW; these figures reflect different reporting conventions and vintages rather than separate nearby facilities. — Source · confidence: medium
- Quality notes.2: The current operating record shows two operating generators totaling 312.8 MW; no separate expansion, retirement, or repowering milestone is included in the timeline. — Global Monitor (June 2008) · confidence: high
- Commercial parties.4: {"relationship":"Former owner and 2008 seller","name":"Tenaska Power Fund, L.P.","detail":"Acquired Calumet from Wisconsin Energy/Wisvest in 2005 and agreed to sell it to International Power in 2008.","official_url":"https://www.tenaska.com/"} — Global Monitor (June 2008) · confidence: medium
- Commercial parties.5: {"relationship":"2008 buyer / former owner","name":"International Power plc","detail":"Acquired Calumet in the 2008 Tenaska four-plant transaction; International Power's generation business subsequently became part of ENGIE.","official_url":null} — Calumet Energy Team 2026 Company Profile · confidence: high
- Commercial parties.5: {"relationship":"2008 buyer / former owner","name":"International Power plc","detail":"Acquired Calumet in the 2008 Tenaska four-plant transaction; International Power's generation business subsequently became part of ENGIE.","official_url":null} — Global Monitor (June 2008) · confidence: high
- Commercial parties.6: {"relationship":"Successor owner and 2017 seller","name":"ENGIE","detail":"International Power's successor; Calumet was included in ENGIE's U.S. generation portfolio acquired by Dynegy in February 2017.","official_url":"https://www.engie.com/"} — GDF SUEZ confirms its worldwide energy player strategy... · confidence: medium
- Ownership interest pct: 100 — News Release · confidence: medium
- Status detail: The exact plant is currently operating with two operational units totaling 312.8 MW. A February 2026 Illinois EPA notice says the facility provides emergency and peak power and is applying to renew its five-year operating permit. Illinois regulatory records place units 1 and 2 in a gas-unit category with a required shutdown date of January 1, 2035. — Source · confidence: medium
- Grid role: Emergency and peak power generation — Source · confidence: high
- Operating status: operating — Source · confidence: high

## Timeline

- 2000-07 — Turnkey construction contract
  Siemens Westinghouse agreed to supply a turnkey 308 MW simple-cycle plant for the Calumet Energy Project, using two nominally 154 MW V84.3A natural-gas turbines.
  Source: Siemens Receives $2 Billion in Orders (https://www.power-eng.com/gas/siemens-receives-2-billion-in-orders/)
- 2005-05-31 — Sale by predecessor owner
  Wisconsin Energy/Wisvest sold the Calumet facility and related operating contracts to Tenaska Power Fund, L. P. for approximately $37.0 million in cash.
  Source: Source (https://www.sec.gov/Archives/edgar/data/783325/000010781505000174/wec10q093005.htm)
- 2008-05 — Agreement to sell to International Power
  Tenaska Power Fund announced an agreement to sell the 303 MW Calumet Energy Power Station and three other generating facilities to International Power plc for an aggregate $856.4 million. Calumet was the facility solely owned by Tenaska in the package; the three other plants were jointly owned with Warburg Pincus.
  Source: Global Monitor (June 2008) (https://www.powermag.com/global-monitor-june-2008/)

## Sources

- [MBR | Index](https://mbrweb.ferc.gov/SearchlkpEIA/Index?page=259) — mbrweb.ferc.gov · tier regulatory
- [Federal Register :: Calumet Energy Team, LLC, et al.; Electric Rate and Corporate Filings](https://www.federalregister.gov/documents/2005/06/09/E5-2973/calumet-energy-team-llc-et-al-electric-rate-and-corporate-filings) — federalregister.gov · tier regulatory
- [eLibrary | Document Information](https://elibrary.ferc.gov/eLibrary/docinfo?accession_Number=20260202-5119&sid=3f2fa233-444b-4e87-a5c4-0277499c4be4) — elibrary.ferc.gov · tier regulatory
- [Source](https://epa.illinois.gov/content/dam/soi/en/web/epa/topics/environmental-justice/documents/notification-letters/2026/Calumet-Energy-Team-LLC-031600GHA-CAAPP-03030094.pdf) — epa.illinois.gov · tier regulatory
- [Siemens Receives $2 Billion in Orders](https://www.power-eng.com/gas/siemens-receives-2-billion-in-orders/) — power-eng.com · tier other
- [Aeroderivative, Industrial and Heavy-Duty Gas Turbines](https://www.siemens-energy.com/global/en/home/products-services/product-offerings/gas-turbines.html) — siemens-energy.com · tier other
- [Power plant profile: Calumet Power Plant, US](https://www.power-technology.com/data-insights/power-plant-profile-calumet-power-plant-us/) — power-technology.com · tier other
- [Source](https://www.sec.gov/Archives/edgar/data/783325/000010781503000006/wec10-k02.htm) — sec.gov · tier regulatory
- [Source](https://www.sec.gov/Archives/edgar/data/783325/000010781505000174/wec10q093005.htm) — sec.gov · tier regulatory
- [News Release](https://www.ecpgp.com/content/dam/bridgepoint/ecp/documents/news-and-insights/2017/170202_dynegy_completes_acquisition-2017.pdf) — ecpgp.com · tier other
- [Global Monitor (June 2008)](https://www.powermag.com/global-monitor-june-2008/) — powermag.com · tier other
- [Calumet Energy Team 2026 Company Profile](https://pitchbook.com/profiles/company/10721-53) — pitchbook.com · tier other
- [GDF SUEZ confirms its worldwide energy player strategy ...](https://en.newsroom.engie.com/news/gdf-suez-confirms-its-worldwide-energy-player-strategy-by-completing-the-acquisition-of-international-powers-minority-shareholding-58fd-314df.html) — en.newsroom.engie.com · tier other
- [STATE OF ILLINOIS ILLINOIS COMMERCE COMMISSION Illinois Commerce Commission ) On its Own Motion ) ) ) Docket No. 22-0749](https://icc.illinois.gov/downloads/public/edocket/609952.PDF) — icc.illinois.gov · tier regulatory

## Data quality

- Historical sources report approximately 303 MW, 308 MW, and 312.8 MW; these figures reflect different reporting conventions and vintages rather than separate nearby facilities. The $856.4 million 2008 figure covered Calumet and three other plants, and the $3.3 billion 2017 figure covered ENGIE's entire U.S. generation portfolio; neither amount is a Calumet-specific sale price. The current operating record shows two operating generators totaling 312.8 MW; no separate expansion, retirement, or repowering milestone is included in the timeline.

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