# Cordova Energy

PJM Natural Gas Fired Combined Cycle · https://askthegrid.com/assets/facilities/cordova-energy

Cordova Energy is a natural gas-fired power facility with 611.2 MW of EIA-reported nameplate capacity in Rock Island County, Illinois, registered as EIA Plant ID 55188. Cordova Energy Co LLC owns and operates the plant. The plant's generating configuration is three-unit natural-gas-fired combined-cycle plant: two Siemens Westinghouse gas turbine generators, one Toshiba steam turbine generator, and two Deltak heat-recovery steam generators. The facility interconnects at TSS 940 Cordova 345 kV substation at 345 kV.

## Key facts

- Technology: Natural Gas Fired Combined Cycle
- Power capacity: 611.2 MW
- Operating status: operating

## Grid and market context

- ISO/RTO: PJM
- Balancing authority: PJM Interconnection, LLC (PJM)
- Substation: TSS 940 Cordova 345 kV substation
- Point of interconnection: TSS 940 Cordova 345 kV substation
- Transmission owner: Commonwealth Edison (ComEd)
- Interconnection voltage: 345 kV

## Source-backed facts

- Owner logo domain: bherenewables.com — BHE Renewables · confidence: medium
- Official project url: https://ema.bherenewables.com/cordova_geothermal.aspx — BHE Renewables · confidence: high
- Owner name: Cordova Energy Company LLC — BHE Renewables · confidence: high
- Canonical name: Cordova Energy — MBR | Index · confidence: high
- Identifiers.0: {"value":"55188","system":"EIA plant ID"} — MBR | Index · confidence: high
- Identifiers.1: {"value":"12095 — generator PT11, unit CC1","system":"EIA/FERC generator record"} — MBR | Index · confidence: high
- Identifiers.2: {"value":"12096 — generator PT21, unit CC1","system":"EIA/FERC generator record"} — MBR | Index · confidence: high
- Identifiers.3: {"value":"12097 — generator PT31, unit CC1","system":"EIA/FERC generator record"} — MBR | Index · confidence: high
- Identifiers.7: {"value":"CORDOVA CC 1","system":"PJM market resource"} — Sheet1 · confidence: medium
- Identifiers.8: {"value":"CORDOVA CT 1","system":"PJM market resource"} — Sheet1 · confidence: medium
- Identifiers.9: {"value":"CORDOVA CT 2","system":"PJM market resource"} — Sheet1 · confidence: medium
- Parties.0: {"relationship":"Owner","name":"Cordova Energy Company LLC","official_url":"https://ema.bherenewables.com/cordova_geothermal.aspx"} — BHE Renewables · confidence: high
- Parties.1: {"relationship":"Indirect parent","name":"BHE Renewables, LLC","official_url":"https://www.bherenewables.com/"} — BHE Renewables · confidence: high
- Parties.2: {"relationship":"Ultimate parent identified by project owner","name":"Berkshire Hathaway Energy","official_url":null} — BHE Renewables · confidence: medium
- Parties.4: {"relationship":"Historical offtaker; project page states output contract through December 2019","name":"Constellation Energy Commodities Group","official_url":"https://www.constellationenergy.com/"} — BHE Renewables · confidence: medium
- Parties.5: {"relationship":"Gas turbine generator supplier","name":"Siemens Westinghouse","official_url":"https://www.siemens-energy.com/global/en/home/products-services/product-offerings/gas-turbines.html"} — Aeroderivative, Industrial and Heavy-Duty Gas Turbines · confidence: high
- Parties.6: {"relationship":"Steam turbine generator supplier","name":"Toshiba Energy Systems and Solutions","official_url":"https://toshiba.com/taes/products/steam-turbine-generator/"} — Steam Turbine Generators | TAES · confidence: high
- Parties.7: {"relationship":"Heat-recovery steam generator supplier","name":"Deltak","official_url":"https://deltak.com/"} — Deltak · confidence: high
- Construction scope: 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. — BHE Renewables · 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
- Product url: https://www.siemens-energy.com/global/en/home/products-services/product-offerings/gas-turbines.html — SGT6-5000F Heavy-duty gas turbine (60 Hz) · confidence: medium
- Equipment models: [{"manufacturer_domain":"siemens-energy.com","product_url":"https://www.siemens-energy.com/global/en/home/products-services/product-offerings/gas-turbines.html","count":2,"unit_mw":210,"name":"Siemens-Westinghouse 501FD combustion turbine"},{"manufacturer_domain":"toshiba.com","product_url":"https://toshiba.com/taes/products/steam-turbine-generator/","count":1,"unit_mw":180,"name":"Toshiba condensing steam turbine-generator"},{"manufacturer_domain":"deltak.com","product_url":"https://deltak.com/","count":2,"unit_mw":null,"name":"Deltak heat-recovery steam generator"}] — BHE Renewables · confidence: medium
- Product family: Siemens-Westinghouse 501FD combustion turbine — MidAmerican Exhibit 1.1 January 28,ZOOO Mr. James A. Plores Vice President Cordova Energy Company LLC 302 South 36” Street Suite · confidence: high
- Manufacturer name: Siemens-Westinghouse — MidAmerican Exhibit 1.1 January 28,ZOOO Mr. James A. Plores Vice President Cordova Energy Company LLC 302 South 36” Street Suite · confidence: high
- Equipment models.0: {"manufacturer_domain":"siemens-energy.com","product_url":"https://www.siemens-energy.com/global/en/home/products-services/product-offerings/gas-turbines.html","count":2,"unit_mw":210,"name":"Siemens-Westinghouse 501FD combustion turbine"} — MidAmerican Exhibit 1.1 January 28,ZOOO Mr. James A. Plores Vice President Cordova Energy Company LLC 302 South 36” Street Suite · confidence: medium
- Equipment models.1: {"manufacturer_domain":"toshiba.com","product_url":"https://toshiba.com/taes/products/steam-turbine-generator/","count":1,"unit_mw":180,"name":"Toshiba condensing steam turbine-generator"} — BHE Renewables · confidence: medium
- Equipment models.2: {"manufacturer_domain":"deltak.com","product_url":"https://deltak.com/","count":2,"unit_mw":null,"name":"Deltak heat-recovery steam generator"} — MidAmerican Exhibit 1.1 January 28,ZOOO Mr. James A. Plores Vice President Cordova Energy Company LLC 302 South 36” Street Suite · confidence: medium
- Equipment models.2: {"manufacturer_domain":"deltak.com","product_url":"https://deltak.com/","count":2,"unit_mw":null,"name":"Deltak heat-recovery steam generator"} — BHE Renewables · confidence: medium
- Quality notes: ["Capacity figures vary by rating basis and source vintage: EIA records report 611.2 MW, while historical and owner materials report approximately 521.2 MW summer, 537 MW, or approximately 551 MW net.","The $225.0 million Cordova Funding financing was project debt used for construction; it should not be treated as plant sale consideration. A separate 2001 announcement reported a $270 million plant cost.","No standalone sale or acquisition of the generating plant is identified in the available ownership history. The documented January 2006 transaction was the transfer of the power-purchase agreement from El Paso to Constellation.","No documented expansion, retirement, or repowering milestone was identified; the facility is recorded as operating in PJM. The named EPC contractor is not identified in the available project records."] — MidAmerican Energy Holdings Company dedicates new generating plant in time for summer demand · confidence: medium
- Quality notes: ["Capacity figures vary by rating basis and source vintage: EIA records report 611.2 MW, while historical and owner materials report approximately 521.2 MW summer, 537 MW, or approximately 551 MW net.","The $225.0 million Cordova Funding financing was project debt used for construction; it should not be treated as plant sale consideration. A separate 2001 announcement reported a $270 million plant cost.","No standalone sale or acquisition of the generating plant is identified in the available ownership history. The documented January 2006 transaction was the transfer of the power-purchase agreement from El Paso to Constellation.","No documented expansion, retirement, or repowering milestone was identified; the facility is recorded as operating in PJM. The named EPC contractor is not identified in the available project records."] — Cordova Funding Corp. Assigned '1' Recovery Rating | S&P Global Ratings · confidence: medium
- Timeline: [{"event":"Project company formation and construction start","date":"1999","detail":"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."},{"event":"Construction financing close","date":"1999-09-10","detail":"Cordova Funding Corporation closed $225.0 million of financing for construction; the proceeds were loaned to Cordova Energy."},{"event":"Plant dedication","date":"2001-06-13","detail":"MidAmerican Energy Holdings announced the dedication of the new 537-MW Cordova Energy Center. The announcement reported a $270 million plant cost and stated that commercial operation would begin later that month."},{"event":"Commercial operation","date":"2001-06","detail":"The Cordova Project commenced commercial operations in June 2001."},{"event":"Power-purchase agreement transfer","date":"2006-01-01","detail":"El Paso Marketing transferred the Cordova power-purchase agreement to Constellation Energy Commodities Group, effective January 1, 2006. This was an offtake-contract transfer, not a documented sale of the generating plant."},{"event":"Long-term dispatch and output rights","date":"2014-06-30","detail":"A regulatory filing stated that Cordova’s dispatch and output rights had been sold to another party on a long-term basis, while the facility continued to be attributed to its BHE/MidAmerican ownership group."},{"event":"Historical PPA expiration","date":"2019-12-31","detail":"The long-term tolling power-purchase agreement with Constellation was reported to expire on December 31, 2019."},{"event":"Plant acquisition or sale","date":null,"detail":"No standalone acquisition or sale of the Cordova generating plant, seller, buyer, or transaction month/year is documented. The available record instead describes Cordova as the project company formed to construct and operate the facility and continuing as its owner."}] — MidAmerican Energy Holdings Company dedicates new generating plant in time for summer demand · confidence: medium
- Timeline: [{"event":"Project company formation and construction start","date":"1999","detail":"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."},{"event":"Construction financing close","date":"1999-09-10","detail":"Cordova Funding Corporation closed $225.0 million of financing for construction; the proceeds were loaned to Cordova Energy."},{"event":"Plant dedication","date":"2001-06-13","detail":"MidAmerican Energy Holdings announced the dedication of the new 537-MW Cordova Energy Center. The announcement reported a $270 million plant cost and stated that commercial operation would begin later that month."},{"event":"Commercial operation","date":"2001-06","detail":"The Cordova Project commenced commercial operations in June 2001."},{"event":"Power-purchase agreement transfer","date":"2006-01-01","detail":"El Paso Marketing transferred the Cordova power-purchase agreement to Constellation Energy Commodities Group, effective January 1, 2006. This was an offtake-contract transfer, not a documented sale of the generating plant."},{"event":"Long-term dispatch and output rights","date":"2014-06-30","detail":"A regulatory filing stated that Cordova’s dispatch and output rights had been sold to another party on a long-term basis, while the facility continued to be attributed to its BHE/MidAmerican ownership group."},{"event":"Historical PPA expiration","date":"2019-12-31","detail":"The long-term tolling power-purchase agreement with Constellation was reported to expire on December 31, 2019."},{"event":"Plant acquisition or sale","date":null,"detail":"No standalone acquisition or sale of the Cordova generating plant, seller, buyer, or transaction month/year is documented. The available record instead describes Cordova as the project company formed to construct and operate the facility and continuing as its owner."}] — Source · confidence: medium
- Quality notes.0: Capacity figures vary by rating basis and source vintage: EIA records report 611.2 MW, while historical and owner materials report approximately 521.2 MW summer, 537 MW, or approximately 551 MW net. — BHE Renewables · confidence: medium
- Quality notes.1: The $225.0 million Cordova Funding financing was project debt used for construction; it should not be treated as plant sale consideration. A separate 2001 announcement reported a $270 million plant cost. — MidAmerican Energy Holdings Company dedicates new generating plant in time for summer demand · confidence: high
- Quality notes.3: No documented expansion, retirement, or repowering milestone was identified; the facility is recorded as operating in PJM. The named EPC contractor is not identified in the available project records. — Power plant profile: Cordova Energy Center Combined Cycle Power Plant, US · confidence: medium
- Quality notes.3: No documented expansion, retirement, or repowering milestone was identified; the facility is recorded as operating in PJM. The named EPC contractor is not identified in the available project records. — Source · confidence: medium
- Timeline.0: {"event":"Project company formation and construction start","date":"1999","detail":"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."} — MidAmerican Energy Holdings Company dedicates new generating plant in time for summer demand · confidence: medium
- Timeline.1: {"event":"Construction financing close","date":"1999-09-10","detail":"Cordova Funding Corporation closed $225.0 million of financing for construction; the proceeds were loaned to Cordova Energy."} — Cordova Funding Corp. Assigned '1' Recovery Rating | S&P Global Ratings · confidence: high
- Timeline.2: {"event":"Plant dedication","date":"2001-06-13","detail":"MidAmerican Energy Holdings announced the dedication of the new 537-MW Cordova Energy Center. The announcement reported a $270 million plant cost and stated that commercial operation would begin later that month."} — MidAmerican Energy Holdings Company dedicates new generating plant in time for summer demand · confidence: high
- Timeline.3: {"event":"Commercial operation","date":"2001-06","detail":"The Cordova Project commenced commercial operations in June 2001."} — Rating On Cordova Funding's $225 Mil. Bonds Place | S&P Global Ratings · confidence: high
- Timeline.5: {"event":"Long-term dispatch and output rights","date":"2014-06-30","detail":"A regulatory filing stated that Cordova’s dispatch and output rights had been sold to another party on a long-term basis, while the facility continued to be attributed to its BHE/MidAmerican ownership group."} — Source · confidence: medium
- Timeline.6: {"event":"Historical PPA expiration","date":"2019-12-31","detail":"The long-term tolling power-purchase agreement with Constellation was reported to expire on December 31, 2019."} — Cordova Funding Corp. Assigned '1' Recovery Rating | S&P Global Ratings · confidence: high
- Timeline.7: {"event":"Plant acquisition or sale","date":null,"detail":"No standalone acquisition or sale of the Cordova generating plant, seller, buyer, or transaction month/year is documented. The available record instead describes Cordova as the project company formed to construct and operate the facility and continuing as its owner."} — Source · confidence: medium
- Commercial parties.3: {"relationship":"Historical developer and parent group","name":"MidAmerican Energy Holdings Company","detail":"Cordova Energy operated as a subsidiary of MidAmerican Energy Holdings during development and the June 2001 plant dedication.","official_url":null} — MidAmerican Energy Holdings Company dedicates new generating plant in time for summer demand · confidence: high
- Commercial parties.5: {"relationship":"Original tolling offtaker","name":"El Paso Merchant Energy, L.P.","detail":"Held the original multi-year tolling power-sales agreement covering the Cordova facility’s capacity and energy.","official_url":null} — Source · confidence: medium
- Commercial parties.7: {"relationship":"Historical contracted purchaser","name":"MidAmerican Energy Company","detail":"The 2001 project announcement identified MidAmerican Energy Company and El Paso Energy as contracted purchasers; MidAmerican also purchased output recalled from El Paso during one contract year.","official_url":"https://www.midamericanenergy.com/"} — MidAmerican Energy Holdings Company dedicates new generating plant in time for summer demand · confidence: high
- Commercial parties.7: {"relationship":"Historical contracted purchaser","name":"MidAmerican Energy Company","detail":"The 2001 project announcement identified MidAmerican Energy Company and El Paso Energy as contracted purchasers; MidAmerican also purchased output recalled from El Paso during one contract year.","official_url":"https://www.midamericanenergy.com/"} — Source · confidence: high
- Commercial parties.8: {"relationship":"Gas-turbine generator supplier","name":"Siemens Westinghouse","detail":"Supplied the two gas-turbine generators identified in the project equipment description.","official_url":"https://www.siemens-energy.com/global/en/home/products-services/product-offerings/gas-turbines.html"} — Power plant profile: Cordova Energy Center Combined Cycle Power Plant, US · confidence: medium
- Commercial parties.9: {"relationship":"Steam-turbine generator supplier","name":"Toshiba Energy Systems and Solutions","detail":"Supplied the steam-turbine generator identified in the project equipment description.","official_url":"https://toshiba.com/taes/products/steam-turbine-generator/"} — Power plant profile: Cordova Energy Center Combined Cycle Power Plant, US · confidence: medium
- Commercial parties.10: {"relationship":"Heat-recovery steam-generator supplier","name":"Hamon Deltak","detail":"Supplied the heat-recovery steam-generator equipment identified in project materials.","official_url":"https://deltak.com/"} — Power plant profile: Cordova Energy Center Combined Cycle Power Plant, US · confidence: medium
- Acquisition detail: No qualifying acquisition of the Cordova Energy plant or an ownership stake is evidenced. The plant was newly built: the 2001 announcement states that construction began in fall 1999 and that Cordova Energy operated the new plant as a MidAmerican Energy Holdings subsidiary; a contemporaneous SEC filing records 1999 construction financing rather than a sale. — MidAmerican Energy Holdings Company dedicates new generating plant in time for summer demand · confidence: medium
- Transaction scope: unsupported — MidAmerican Energy Holdings Company dedicates new generating plant in time for summer demand · confidence: medium
- Substation: TSS 940 Cordova 345 kV substation — Source · confidence: medium

## Timeline

- 1999 — Project company formation and construction start
  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.
  Source: MidAmerican Energy Holdings Company dedicates new generating plant in time for summer demand (https://www.power-eng.com/gas/midamerican-energy-holdings-company-dedicates-new-generating-plant-in-time-for-summer-demand/)
- 2001-06-13 — Plant dedication
  MidAmerican Energy Holdings announced the dedication of the new 537-MW Cordova Energy Center. The announcement reported a $270 million plant cost and stated that commercial operation would begin later that month.
  Source: MidAmerican Energy Holdings Company dedicates new generating plant in time for summer demand (https://www.power-eng.com/gas/midamerican-energy-holdings-company-dedicates-new-generating-plant-in-time-for-summer-demand/)

## Sources

- [BHE Renewables](https://www.bherenewables.com/) — bherenewables.com · tier other
- [BHE Renewables](https://ema.bherenewables.com/cordova_geothermal.aspx) — ema.bherenewables.com · tier other
- [MBR | Index](https://mbrweb.ferc.gov/SearchlkpEIA/Index?page=242) — mbrweb.ferc.gov · tier regulatory
- [Sheet1](https://www.pjm.com/-/media/DotCom/markets-ops/rpm/rpm-auction-info/2025-2026/2025-2026-rpm-existing-resource-list-post.xlsx) — pjm.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
- [Steam Turbine Generators | TAES](https://toshiba.com/taes/products/steam-turbine-generator/) — toshiba.com · tier other
- [Deltak](https://deltak.com/) — deltak.com · tier other
- [MidAmerican Exhibit 1.1 January 28,ZOOO Mr. James A. Plores Vice President Cordova Energy Company LLC 302 South 36” Street Suite](https://icc.illinois.gov/downloads/public/edocket/923.PDF) — icc.illinois.gov · tier regulatory
- [SGT6-5000F Heavy-duty gas turbine (60 Hz)](https://www.siemens-energy.com/global/en/home/products-services/product/sgt6-5000f.html) — siemens-energy.com · tier other
- [Source](https://pjm.com/-/media/DotCom/markets-ops/rpm/rpm-auction-info/2025-2026/2025-2026-rpm-existing-resource-list-post.xlsx) — pjm.com · tier other
- [MidAmerican Energy Holdings Company dedicates new generating plant in time for summer demand](https://www.power-eng.com/gas/midamerican-energy-holdings-company-dedicates-new-generating-plant-in-time-for-summer-demand/) — power-eng.com · tier other
- [Rating On Cordova Funding's $225 Mil. Bonds Place | S&P Global Ratings](https://www.spglobal.com/ratings/en/regulatory/article/-/view/type/HTML/id/486128) — spglobal.com · tier other
- [Cordova Funding Corp. Assigned '1' Recovery Rating | S&P Global Ratings](https://www.spglobal.com/ratings/en/regulatory/article/-/view/type/HTML/id/688434) — spglobal.com · tier other
- [Source](https://puc.sd.gov/commission/dockets/electric/2014/informational/2014infoel19.pdf) — puc.sd.gov · tier regulatory
- [Power plant profile: Cordova Energy Center Combined Cycle Power Plant, US](https://www.power-technology.com/data-insights/power-plant-profile-cordova-energy-center-combined-cycle-power-plant-us/) — power-technology.com · tier other
- [Source](https://www.sec.gov/Archives/edgar/data/1081316/000108131605000022/mehc10k-2004.htm) — sec.gov · tier regulatory
- [MBR | Asset Appendix Report](https://mbrweb.ferc.gov/SearchMBRAssetAppendix/AssetAppendixDetails?AssetAppendixId=5183) — mbrweb.ferc.gov · tier regulatory
- [Source](https://www.pjm.com/pjmfiles/pub/planning/project-queues/Facility_Studies/TC1/PHASE_3/AG1-553_TC1_PH3_fac.pdf) — pjm.com · tier other
- [Preliminary Monthly Electric Generator Inventory (based on Form EIA-860M as a supplement to Form EIA-860) - U.S. Energy Information Administration (EIA)](https://www.eia.gov/electricity/data/eia860m/) — eia.gov · tier regulatory

## Data quality

- Capacity figures vary by rating basis and source vintage: EIA records report 611.2 MW, while historical and owner materials report approximately 521.2 MW summer, 537 MW, or approximately 551 MW net. The $225.0 million Cordova Funding financing was project debt used for construction; it should not be treated as plant sale consideration. A separate 2001 announcement reported a $270 million plant cost. No standalone sale or acquisition of the generating plant is identified in the available ownership history. The documented January 2006 transaction was the transfer of the power-purchase agreement from El Paso to Constellation. No documented expansion, retirement, or repowering milestone was identified; the facility is recorded as operating in PJM. The named EPC contractor is not identified in the available project records.

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Canonical page: https://askthegrid.com/assets/facilities/cordova-energy

Source: Ask the Grid — https://askthegrid.com/