# Quad Cities Generating Station

PJM Nuclear · https://askthegrid.com/assets/facilities/quad-cities-generating-station

Quad Cities Generating Station is a nuclear power facility with 2,018.6 MW of EIA-reported nameplate capacity in Rock Island County, Illinois, registered as EIA Plant ID 880. Constellation Nuclear is the registered plant entity or operator.

## Key facts

- Technology: Nuclear
- Power capacity: 2018.6 MW
- Operating status: operating

## Grid and market context

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

## Source-backed facts

- Owner logo domain: constellationenergy.com — Quad Cities Clean Energy Center | Constellation Energy Locations · confidence: medium
- Identifiers: [{"value":"880","system":"EIA plant ID"},{"value":"1","system":"EIA generator ID — Unit 1"},{"value":"2","system":"EIA generator ID — Unit 2"},{"value":"PJM","system":"PJM balancing authority / market"},{"value":"QUAD CITIES 1","system":"PJM resource name — Unit 1"},{"value":"QUAD CITIES 2","system":"PJM resource name — Unit 2"},{"value":"50-00254","system":"NRC docket — Unit 1"},{"value":"50-00265","system":"NRC docket — Unit 2"},{"value":"DPR-29","system":"NRC operating license — Unit 1"},{"value":"DPR-30","system":"NRC operating license — Unit 2"},{"value":"NRC-2025-0577","system":"Regulations.gov / NRC docket"}] — Nuclear reactor Ownership · confidence: medium
- Identifiers: [{"value":"880","system":"EIA plant ID"},{"value":"1","system":"EIA generator ID — Unit 1"},{"value":"2","system":"EIA generator ID — Unit 2"},{"value":"PJM","system":"PJM balancing authority / market"},{"value":"QUAD CITIES 1","system":"PJM resource name — Unit 1"},{"value":"QUAD CITIES 2","system":"PJM resource name — Unit 2"},{"value":"50-00254","system":"NRC docket — Unit 1"},{"value":"50-00265","system":"NRC docket — Unit 2"},{"value":"DPR-29","system":"NRC operating license — Unit 1"},{"value":"DPR-30","system":"NRC operating license — Unit 2"},{"value":"NRC-2025-0577","system":"Regulations.gov / NRC docket"}] — Sheet1 · confidence: medium
- Identifiers: [{"value":"880","system":"EIA plant ID"},{"value":"1","system":"EIA generator ID — Unit 1"},{"value":"2","system":"EIA generator ID — Unit 2"},{"value":"PJM","system":"PJM balancing authority / market"},{"value":"QUAD CITIES 1","system":"PJM resource name — Unit 1"},{"value":"QUAD CITIES 2","system":"PJM resource name — Unit 2"},{"value":"50-00254","system":"NRC docket — Unit 1"},{"value":"50-00265","system":"NRC docket — Unit 2"},{"value":"DPR-29","system":"NRC operating license — Unit 1"},{"value":"DPR-30","system":"NRC operating license — Unit 2"},{"value":"NRC-2025-0577","system":"Regulations.gov / NRC docket"}] — Quad Cities Nuclear Power Station, Units 1 and 2 Approved Power Uprate Application Information | Nuclear Regulatory Commission · confidence: medium
- Identifiers: [{"value":"880","system":"EIA plant ID"},{"value":"1","system":"EIA generator ID — Unit 1"},{"value":"2","system":"EIA generator ID — Unit 2"},{"value":"PJM","system":"PJM balancing authority / market"},{"value":"QUAD CITIES 1","system":"PJM resource name — Unit 1"},{"value":"QUAD CITIES 2","system":"PJM resource name — Unit 2"},{"value":"50-00254","system":"NRC docket — Unit 1"},{"value":"50-00265","system":"NRC docket — Unit 2"},{"value":"DPR-29","system":"NRC operating license — Unit 1"},{"value":"DPR-30","system":"NRC operating license — Unit 2"},{"value":"NRC-2025-0577","system":"Regulations.gov / NRC docket"}] — Federal Register :: In the Matter of Quad Cities Nuclear Power Station, Units 1 and 2; Confirmatory Order Modifying License · confidence: medium
- Official project url: https://www.constellationenergy.com/about/locations/quad-cities-clean-energy-center.html — Quad Cities Clean Energy Center | Constellation Energy Locations · confidence: high
- Owner name: Constellation Energy Generation, LLC — Federal Register :: In the Matter of Quad Cities Nuclear Power Station, Units 1 and 2; Confirmatory Order Modifying License · confidence: high
- Description: Quad Cities Generating Station is a two-unit nuclear generating station in Cordova, Illinois. Its two reactors can generate approximately 1,870 MW of clean, emissions-free electricity. Constellation owns 75% of the facility and operates both units, while MidAmerican Energy Company owns the remaining 25%. The renewed operating licenses authorize operation through 2032. — Quad Cities Clean Energy Center | Constellation Energy Locations · confidence: medium
- Description: Quad Cities Generating Station is a two-unit nuclear generating station in Cordova, Illinois. Its two reactors can generate approximately 1,870 MW of clean, emissions-free electricity. Constellation owns 75% of the facility and operates both units, while MidAmerican Energy Company owns the remaining 25%. The renewed operating licenses authorize operation through 2032. — Quad Cities Nuclear Power Station, Units 1 & 2, 2025 Decommissioning Funding Status Report · confidence: medium
- Parties: [{"relationship":"75% owner, NRC licensee, and operator of both units","name":"Constellation Energy Generation, LLC","official_url":"https://www.constellationenergy.com/"},{"relationship":"EIA-listed operator","name":"Constellation Nuclear","official_url":"https://www.constellationenergy.com/"},{"relationship":"25% owner","name":"MidAmerican Energy Company","official_url":"https://www.midamericanenergy.com/"},{"relationship":"Historical construction plant builder","name":"General Electric","official_url":"https://www.ge.com/"},{"relationship":"Consulting engineer","name":"Sargent & Lundy","official_url":"https://www.sargentlundy.com/"}] — Quad Cities Nuclear Power Station, Units 1 & 2, 2025 Decommissioning Funding Status Report · confidence: medium
- Identifiers.1: {"value":"1","system":"EIA generator ID — Unit 1"} — Nuclear reactor Ownership · confidence: high
- Identifiers.2: {"value":"2","system":"EIA generator ID — Unit 2"} — Nuclear reactor Ownership · confidence: high
- Identifiers.4: {"value":"QUAD CITIES 1","system":"PJM resource name — Unit 1"} — Sheet1 · confidence: medium
- Identifiers.5: {"value":"QUAD CITIES 2","system":"PJM resource name — Unit 2"} — Sheet1 · confidence: medium
- Identifiers.6: {"value":"50-00254","system":"NRC docket — Unit 1"} — Quad Cities Nuclear Power Station, Units 1 and 2 Approved Power Uprate Application Information | Nuclear Regulatory Commission · confidence: high
- Identifiers.7: {"value":"50-00265","system":"NRC docket — Unit 2"} — Quad Cities Nuclear Power Station, Units 1 and 2 Approved Power Uprate Application Information | Nuclear Regulatory Commission · confidence: high
- Identifiers.8: {"value":"DPR-29","system":"NRC operating license — Unit 1"} — Quad Cities Nuclear Power Station, Units 1 and 2 Approved Power Uprate Application Information | Nuclear Regulatory Commission · confidence: high
- Identifiers.9: {"value":"DPR-30","system":"NRC operating license — Unit 2"} — Quad Cities Nuclear Power Station, Units 1 and 2 Approved Power Uprate Application Information | Nuclear Regulatory Commission · confidence: high
- Identifiers.10: {"value":"NRC-2025-0577","system":"Regulations.gov / NRC docket"} — Federal Register :: In the Matter of Quad Cities Nuclear Power Station, Units 1 and 2; Confirmatory Order Modifying License · confidence: high
- Parties.0: {"relationship":"75% owner, NRC licensee, and operator of both units","name":"Constellation Energy Generation, LLC","official_url":"https://www.constellationenergy.com/"} — Quad Cities Nuclear Power Station, Units 1 & 2, 2025 Decommissioning Funding Status Report · confidence: high
- Parties.0: {"relationship":"75% owner, NRC licensee, and operator of both units","name":"Constellation Energy Generation, LLC","official_url":"https://www.constellationenergy.com/"} — Federal Register :: In the Matter of Quad Cities Nuclear Power Station, Units 1 and 2; Confirmatory Order Modifying License · confidence: high
- Parties.3: {"relationship":"Historical construction plant builder","name":"General Electric","official_url":"https://www.ge.com/"} — Quad Cities Nuclear Power Station, Units 1 & 2, 2025 Decommissioning Funding Status Report · confidence: medium
- Parties.4: {"relationship":"Consulting engineer","name":"Sargent & Lundy","official_url":"https://www.sargentlundy.com/"} — Quad Cities Nuclear Power Station, Units 1 & 2, 2025 Decommissioning Funding Status Report · confidence: medium
- Site acres: 765 — Source · confidence: medium
- Unit configuration: Two operating General Electric boiling-water reactor (BWR) nuclear units. — Source · confidence: high
- Commercial operation date: 1973-02-18 (Unit 1); 1973-03-10 (Unit 2) — Source · confidence: high
- Unit count: 2 — Source · confidence: high
- Construction scope: Two GE boiling-water reactor units (Units 1 and 2) are installed at Quad Cities. Each unit has 3,546 MWt licensed thermal output and approximately 1,207 MWe gross electrical output. Sargent & Lundy originally designed and constructed the balance of plant. The site also received a pair of GE-manufactured replacement steam dryers, one for each reactor. — Source · confidence: medium
- Product url: https://www.gevernova.com/nuclear/carbon-free-power/large-reactors — Large nuclear boiling water reactor | GE Vernova Hitachi · confidence: medium
- Kind: nuclear — Source · confidence: high
- Kind: nuclear — Source · confidence: high
- Equipment models: [{"manufacturer_domain":"ge.com","product_url":"https://www.gevernova.com/nuclear/carbon-free-power/large-reactors","count":2,"unit_mw":0.867,"name":"GE BWR-3 (Mark 1) boiling water reactor"},{"manufacturer_domain":"ge.com","product_url":null,"count":2,"unit_mw":null,"name":"GE-manufactured replacement steam dryer"}] — Source · confidence: medium
- Manufacturer name: General Electric (GE) — Source · confidence: medium
- Equipment models.0: {"manufacturer_domain":"ge.com","product_url":"https://www.gevernova.com/nuclear/carbon-free-power/large-reactors","count":2,"unit_mw":0.867,"name":"GE BWR-3 (Mark 1) boiling water reactor"} — Source · confidence: medium
- Significance: Quad Cities is a two-unit nuclear station capable of approximately 1,870 MW and producing electricity equivalent to the needs of more than 1 million homes. The site is also home to the only privately owned fish hatchery on the Mississippi River. — Source · confidence: medium
- Description: Quad Cities Generating Station is a two-unit General Electric boiling-water reactor facility in Cordova, Illinois, with Unit 1 entering commercial service on February 18, 1973, and Unit 2 on March 10, 1973. Constellation Energy Generation, LLC owns 75% and operates both units, while MidAmerican Energy Company owns the remaining 25%. Commonwealth Edison was the predecessor owner of Constellation's interest; its generating assets were transferred to Exelon Generation in January 2001, and the generation business later became part of Constellation after Exelon's February 2022 separation. The NRC approved renewed operating licenses on October 28, 2004, authorizing both units to operate through December 14, 2032. — Source · confidence: medium
- Quality notes: ["Construction-start records differ: an NRC decommissioning report lists construction beginning in 1966, while public station records list February 15, 1967.","The 1968 financing figures are company-wide Commonwealth Edison construction financing and are not allocated solely to Quad Cities. No standalone Quad Cities project-finance amount or cash sale consideration was disclosed.","The documented generation expansion was the 2001 extended power uprate. No reactor replacement or completed repowering transaction was identified; the 2016 proposed retirement was subsequently avoided after Illinois legislation supported continued operation."] — Quad Cities Nuclear Power Station, Units 1 & 2, 2025 Decommissioning Funding Status Report · confidence: medium
- Quality notes: ["Construction-start records differ: an NRC decommissioning report lists construction beginning in 1966, while public station records list February 15, 1967.","The 1968 financing figures are company-wide Commonwealth Edison construction financing and are not allocated solely to Quad Cities. No standalone Quad Cities project-finance amount or cash sale consideration was disclosed.","The documented generation expansion was the 2001 extended power uprate. No reactor replacement or completed repowering transaction was identified; the 2016 proposed retirement was subsequently avoided after Illinois legislation supported continued operation."] — Quad Cities Nuclear Generating Station · confidence: medium
- Quality notes: ["Construction-start records differ: an NRC decommissioning report lists construction beginning in 1966, while public station records list February 15, 1967.","The 1968 financing figures are company-wide Commonwealth Edison construction financing and are not allocated solely to Quad Cities. No standalone Quad Cities project-finance amount or cash sale consideration was disclosed.","The documented generation expansion was the 2001 extended power uprate. No reactor replacement or completed repowering transaction was identified; the 2016 proposed retirement was subsequently avoided after Illinois legislation supported continued operation."] — Quad Cities Nuclear Power Station, Units 1 and 2 Approved Power Uprate Application Information | Nuclear Regulatory Commission · confidence: medium
- Quality notes: ["Construction-start records differ: an NRC decommissioning report lists construction beginning in 1966, while public station records list February 15, 1967.","The 1968 financing figures are company-wide Commonwealth Edison construction financing and are not allocated solely to Quad Cities. No standalone Quad Cities project-finance amount or cash sale consideration was disclosed.","The documented generation expansion was the 2001 extended power uprate. No reactor replacement or completed repowering transaction was identified; the 2016 proposed retirement was subsequently avoided after Illinois legislation supported continued operation."] — Exelon to shut Clinton, Quad Cities nuclear plants after Illinois bill stalls | Utility Dive · confidence: medium
- Commercial parties.0: {"relationship":"75% owner, NRC licensee, and operator of both units","name":"Constellation Energy Generation, LLC","detail":"Current controlling owner and operator of Quad Cities; Constellation's site materials identify a 75% ownership interest.","official_url":"https://www.constellationenergy.com/"} — Quad Cities Clean Energy Center | Constellation Energy Locations · confidence: medium
- Commercial parties.1: {"relationship":"25% owner","name":"MidAmerican Energy Company","detail":"Current minority co-owner of Units 1 and 2.","official_url":"https://www.midamericanenergy.com/"} — Quad Cities Clean Energy Center | Constellation Energy Locations · confidence: medium
- Commercial parties.4: {"relationship":"Historical licensee, owner successor, and operator","name":"Exelon Generation Company, LLC","detail":"Received Commonwealth Edison's Quad Cities interest and operating responsibility in the 2001 Exelon restructuring and was the generation-business predecessor to Constellation.","official_url":"https://www.exeloncorp.com/"} — UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of · confidence: medium
- Commercial parties.5: {"relationship":"Reactor supplier and plant builder","name":"General Electric","detail":"Supplied the boiling-water reactor technology and is identified in station materials as the plant builder.","official_url":"https://www.ge.com/"} — Source · confidence: high
- Commercial parties.6: {"relationship":"Consulting engineer","name":"Sargent & Lundy","detail":"Identified with General Electric as the consulting engineer for the station.","official_url":"https://www.sargentlundy.com/"} — Source · confidence: medium
- Quality notes.0: Construction-start records differ: an NRC decommissioning report lists construction beginning in 1966, while public station records list February 15, 1967. — Quad Cities Nuclear Power Station, Units 1 & 2, 2025 Decommissioning Funding Status Report · confidence: high
- Quality notes.0: Construction-start records differ: an NRC decommissioning report lists construction beginning in 1966, while public station records list February 15, 1967. — Quad Cities Nuclear Generating Station · confidence: high
- Quality notes.2: The documented generation expansion was the 2001 extended power uprate. No reactor replacement or completed repowering transaction was identified; the 2016 proposed retirement was subsequently avoided after Illinois legislation supported continued operation. — Quad Cities Nuclear Power Station, Units 1 and 2 Approved Power Uprate Application Information | Nuclear Regulatory Commission · confidence: medium
- Quality notes.2: The documented generation expansion was the 2001 extended power uprate. No reactor replacement or completed repowering transaction was identified; the 2016 proposed retirement was subsequently avoided after Illinois legislation supported continued operation. — Exelon to Close Quad Cities & Clinton Nuclear... · confidence: medium
- Quality notes.2: The documented generation expansion was the 2001 extended power uprate. No reactor replacement or completed repowering transaction was identified; the 2016 proposed retirement was subsequently avoided after Illinois legislation supported continued operation. — Governor Signs Legislation to Protect Jobs, Ratepayers... · confidence: medium
- Timeline.0: {"event":"Construction","date":"1966","detail":"An NRC decommissioning-funding report lists construction beginning in 1966; other public station records give February 15, 1967 as the construction start date."} — Quad Cities Nuclear Power Station, Units 1 & 2, 2025 Decommissioning Funding Status Report · confidence: medium
- Timeline.0: {"event":"Construction","date":"1966","detail":"An NRC decommissioning-funding report lists construction beginning in 1966; other public station records give February 15, 1967 as the construction start date."} — Quad Cities Nuclear Generating Station · confidence: medium
- Timeline.2: {"event":"Unit 1 commercial operation","date":"1973-02-18","detail":"Quad Cities Unit 1 entered commercial service."} — Source · confidence: high
- Timeline.3: {"event":"Unit 2 commercial operation","date":"1973-03-10","detail":"Quad Cities Unit 2 entered commercial service."} — Source · confidence: high

## Timeline

- 1973-02-18 (Unit 1); 1973-03-10 (Unit 2) — Commercial operation
  Quad Cities Generating Station entered commercial operation.
  Source: Source (https://www.constellationenergy.com/content/dam/constellationenergy/pdfs/fact-sheets/Quad_Cities_Clean_Energy_Center_Fact_Sheet.pdf)
- 2001-01-01 — Transfer to Exelon Generation
  As part of Exelon's corporate restructuring, Commonwealth Edison's generating assets, including its Quad Cities interest, were transferred to Exelon Generation Company.
  Source: UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of (https://investors.exeloncorp.com/static-files/f9c9fec4-2bbc-4808-bd0a-9a57bdd1ef45)
- 2004-10-28 — License renewal
  The NRC approved initial license renewal for both units, authorizing operation through December 14, 2032.
  Source: Quad Cities Clean Energy Center | Constellation Energy Locations (https://www.constellationenergy.com/about/locations/quad-cities-clean-energy-center.html)
- 2018-06 — Facility and used-fuel-storage expansion
  Quad Cities completed or advanced approximately $20 million of construction and facility improvements, including a $7 million expanded training center and an expansion of the used-fuel storage pad costing more than $10 million.
  Source: Quad Cities Generating Station Unveils Expanded Training Center (https://www.constellationenergy.com/news/2018/quad-cities-generating-station-unveils-expanded-training-center.html)

## Sources

- [Quad Cities Clean Energy Center](https://www.constellationenergy.com/about/locations/quad-cities-clean-energy-center.html) — constellationenergy.com · tier other
- [Nuclear reactor Ownership](https://www.eia.gov/nuclear/reactors/reactorcapacity.php) — eia.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
- [Quad Cities Nuclear Power Station, Units 1 and 2 Approved Power Uprate Application Information | Nuclear Regulatory Commission](https://www.nrc.gov/reactors/operating/licensing/power-uprates/bwr-epu/quad-cities-pu) — nrc.gov · tier regulatory
- [Federal Register :: In the Matter of Quad Cities Nuclear Power Station, Units 1 and 2; Confirmatory Order Modifying License](https://www.federalregister.gov/documents/2025/08/01/2025-14580/in-the-matter-of-quad-cities-nuclear-power-station-units-1-and-2-confirmatory-order-modifying) — federalregister.gov · tier regulatory
- [Quad Cities Nuclear Power Station, Units 1 & 2, 2025 Decommissioning Funding Status Report](https://www.nrc.gov/docs/ML2509/ML25093A107.pdf) — nrc.gov · tier regulatory
- [Source](https://www.constellationenergy.com/content/dam/constellationenergy/pdfs/fact-sheets/Quad_Cities_Clean_Energy_Center_Fact_Sheet.pdf) — constellationenergy.com · tier other
- [Source](https://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr2205/index) — nrc.gov · tier regulatory
- [Source](https://www.barnhartcrane.com/uploads/Oct05NNQuadCities.pdf) — barnhartcrane.com · tier other
- [Source](https://constellationenergy.com/about/locations/quad-cities-clean-energy-center.html) — constellationenergy.com · tier other
- [Large nuclear boiling water reactor | GE Vernova Hitachi](https://www.gevernova.com/nuclear/carbon-free-power/large-reactors) — gevernova.com · tier other
- [Federal Register :: In the Matter of Commonwealth Edison Company; Quad Cities Nuclear Power Station; Units 1 and 2; Order Approving Transfer of Licenses and Conforming Amendments](https://www.federalregister.gov/documents/2000/08/14/00-20572/in-the-matter-of-commonwealth-edison-company-quad-cities-nuclear-power-station-units-1-and-2-order) — federalregister.gov · tier regulatory
- [Quad Cities Nuclear Generating Station](https://en.wikipedia.org/wiki/Quad_Cities_Nuclear_Generating_Station) — en.wikipedia.org · tier other
- [Exelon to shut Clinton, Quad Cities nuclear plants after Illinois bill stalls | Utility Dive](https://www.utilitydive.com/news/exelon-to-shut-clinton-quad-cities-nuclear-plants-after-illinois-bill-stal/420237/) — utilitydive.com · tier other
- [UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of](https://investors.exeloncorp.com/static-files/f9c9fec4-2bbc-4808-bd0a-9a57bdd1ef45) — investors.exeloncorp.com · tier other
- [Exelon to Close Quad Cities & Clinton Nuclear ...](https://www.power-eng.com/nuclear/exelon-to-close-quad-cities-clinton-nuclear-power-plants-in-illinois/) — power-eng.com · tier other
- [Governor Signs Legislation to Protect Jobs, Ratepayers ...](https://www.illinois.gov/news/release.html?releaseid=13923) — illinois.gov · tier regulatory
- [Quad Cities Generating Station Unveils Expanded Training Center](https://www.constellationenergy.com/news/2018/quad-cities-generating-station-unveils-expanded-training-center.html) — constellationenergy.com · tier other
- [Source](https://www.nrc.gov/docs/ML0530/ML053050204.pdf) — nrc.gov · tier regulatory
- [Source](https://www.nrc.gov/docs/ML1729/ML17298A345.pdf) — nrc.gov · tier regulatory
- [Quad Cities Nuclear Power Station, Units 1 and 2 - Exemption from the Requirements of 10 CFR Part 2, Section 2.109(B) Related to Submission of Subsequent License Renewal Application - FRN (EPID L-2023-LLE-0004)](https://www.nrc.gov/docs/ML2303/ML23033A403.pdf) — nrc.gov · tier regulatory
- [Nuclear Generation | Constellation Energy](https://www.constellationenergy.com/work/generation/nuclear.html) — constellationenergy.com · tier other

## Data quality

- Construction-start records differ: an NRC decommissioning report lists construction beginning in 1966, while public station records list February 15, 1967. The 1968 financing figures are company-wide Commonwealth Edison construction financing and are not allocated solely to Quad Cities. No standalone Quad Cities project-finance amount or cash sale consideration was disclosed. The documented generation expansion was the 2001 extended power uprate. No reactor replacement or completed repowering transaction was identified; the 2016 proposed retirement was subsequently avoided after Illinois legislation supported continued operation.

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Canonical page: https://askthegrid.com/assets/facilities/quad-cities-generating-station

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