# Madison

PJM Natural Gas Fired Combustion Turbine · https://askthegrid.com/assets/facilities/madison

Madison is a natural gas-fired power facility with 692 MW of EIA-reported nameplate capacity in Butler County, Ohio, registered as EIA Plant ID 55110. Duke Energy Indiana, LLC owns and operates the plant. Its grid role is baseload generation, as described by the plant profile.

## Key facts

- Technology: Natural Gas Fired Combustion Turbine
- Power capacity: 692 MW
- Operating status: operating

## Grid and market context

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

## Source-backed facts

- Owner logo domain: duke-energy.com — Power Plants - Our Company - Duke Energy · confidence: medium
- Identifiers: [{"value":"55110","system":"EIA plant code"},{"value":"55110","system":"EPA ORIS ID"},{"value":"11582, 11583, 11584, 11585, 11586, 11587, 11588, 11589","system":"FERC EIA record IDs"},{"value":"CT1, CT2, CT3, CT4, CT5, CT6, CT7, CT8","system":"EIA/FERC generator IDs"},{"value":"PJM Interconnection (PJM)","system":"ISO/RTO"}] — MBR | Index · confidence: medium
- Identifiers: [{"value":"55110","system":"EIA plant code"},{"value":"55110","system":"EPA ORIS ID"},{"value":"11582, 11583, 11584, 11585, 11586, 11587, 11588, 11589","system":"FERC EIA record IDs"},{"value":"CT1, CT2, CT3, CT4, CT5, CT6, CT7, CT8","system":"EIA/FERC generator IDs"},{"value":"PJM Interconnection (PJM)","system":"ISO/RTO"}] — Source · confidence: medium
- Owner name: Duke Energy Indiana, LLC — MBR | Index · confidence: medium
- Description: Madison, also identified in environmental records as Madison Generating Station, is an operating natural-gas-fired combustion-turbine plant in Trenton, Butler County, Ohio. EIA plant code 55110 comprises eight CT units, CT1 through CT8, totaling 692 MW of nameplate capacity; the units began operating in June 2000. The facility operates in the PJM market and is owned and operated by Duke Energy Indiana, LLC. — MBR | Index · confidence: medium
- Parties: [{"relationship":"Owner and operator","name":"Duke Energy Indiana, LLC","official_url":"https://www.duke-energy.com/"},{"relationship":"Parent company","name":"Duke Energy Corporation","official_url":"https://www.duke-energy.com/our-company/about-us"}] — MBR | Index · confidence: medium
- Parties: [{"relationship":"Owner and operator","name":"Duke Energy Indiana, LLC","official_url":"https://www.duke-energy.com/"},{"relationship":"Parent company","name":"Duke Energy Corporation","official_url":"https://www.duke-energy.com/our-company/about-us"}] — duk-20251231 · confidence: medium
- Canonical name: Madison — MBR | Index · confidence: high
- Identifiers.0: {"value":"55110","system":"EIA plant code"} — MBR | Index · confidence: high
- Identifiers.1: {"value":"55110","system":"EPA ORIS ID"} — Source · confidence: high
- Identifiers.2: {"value":"11582, 11583, 11584, 11585, 11586, 11587, 11588, 11589","system":"FERC EIA record IDs"} — MBR | Index · confidence: medium
- Identifiers.3: {"value":"CT1, CT2, CT3, CT4, CT5, CT6, CT7, CT8","system":"EIA/FERC generator IDs"} — MBR | Index · confidence: high
- Parties.0: {"relationship":"Owner and operator","name":"Duke Energy Indiana, LLC","official_url":"https://www.duke-energy.com/"} — MBR | Index · confidence: high
- Parties.1: {"relationship":"Parent company","name":"Duke Energy Corporation","official_url":"https://www.duke-energy.com/our-company/about-us"} — duk-20251231 · confidence: high
- Unit configuration: Eight natural-gas-fired gas-turbine combustion units, CT1 through CT8, each rated at 86.5 MW — Madison power station - Global Energy Monitor · confidence: medium
- Unit configuration: Eight natural-gas-fired gas-turbine combustion units, CT1 through CT8, each rated at 86.5 MW — MBR | Index · confidence: medium
- Commercial operation date: 2000-06 — MBR | Index · confidence: high
- Power mw: 692 — MBR | Index · confidence: medium
- Unit count: 8 — MBR | Index · confidence: high
- Product url: https://www.gevernova.com/gas-power/products/gas-turbines/7e — 7E Gas Turbine (7E.03) · confidence: high
- Manufacturer domain: gevernova.com — 7E Gas Turbine (7E.03) · confidence: medium
- Product family: 7E.03 — 7E Gas Turbine (7E.03) · confidence: medium
- Equipment models.0: {"manufacturer_domain":"gevernova.com","product_url":"https://www.gevernova.com/gas-power/products/gas-turbines/7e","count":8,"unit_mw":86.5,"name":"GE 7E.03 gas turbine"} — 7E Gas Turbine (7E.03) · confidence: medium
- Quality notes: ["The 2002 regulatory record described Madison as 576 MW summer-rated, while current plant records report 692 MW of nameplate capacity across eight units; the difference reflects different rating bases or reporting periods and is not, by itself, evidence of a documented expansion.","The acquisition consideration was based on the December 1, 2002 net book value of the facilities, but no dollar amount is disclosed in the cited records.","The February 5, 2003 date is the date of the identified asset-purchase agreement; December 2002 is the date of Indiana regulatory approval, and the records do not establish a separate closing date.","No expansion, repowering, or retirement milestone is documented in the cited history; current records identify the facility as operating."] — Indiana Regulatory Commission approves settlement... · confidence: medium
- Quality notes: ["The 2002 regulatory record described Madison as 576 MW summer-rated, while current plant records report 692 MW of nameplate capacity across eight units; the difference reflects different rating bases or reporting periods and is not, by itself, evidence of a documented expansion.","The acquisition consideration was based on the December 1, 2002 net book value of the facilities, but no dollar amount is disclosed in the cited records.","The February 5, 2003 date is the date of the identified asset-purchase agreement; December 2002 is the date of Indiana regulatory approval, and the records do not establish a separate closing date.","No expansion, repowering, or retirement milestone is documented in the cited history; current records identify the facility as operating."] — Source · confidence: medium
- Financing summary: The disclosed transaction was an acquisition rather than a project-finance facility. Indiana regulators permitted PSI Energy to acquire the Madison and Henry County plants at a price based on their December 1, 2002 net book value, with the customer-recoverable amount to be determined in PSI’s next rate case; no dollar consideration is stated. A 2001 SEC system-company filing describes CinCap VIII as holding a 100% equity investment in CinCap Madison, but does not disclose project debt, lenders, or a separate construction-financing amount. — Indiana Regulatory Commission approves settlement between PSI Energy, consumer counselor and commission staff · confidence: medium
- Financing summary: The disclosed transaction was an acquisition rather than a project-finance facility. Indiana regulators permitted PSI Energy to acquire the Madison and Henry County plants at a price based on their December 1, 2002 net book value, with the customer-recoverable amount to be determined in PSI’s next rate case; no dollar consideration is stated. A 2001 SEC system-company filing describes CinCap VIII as holding a 100% equity investment in CinCap Madison, but does not disclose project debt, lenders, or a separate construction-financing amount. — IURC News · confidence: medium
- Timeline: [{"event":"Construction and commercial operation","date":"2000-06","detail":"Construction was completed before commissioning, and Madison began commercial operation in June 2000 as a natural-gas-fired combustion-turbine facility."},{"event":"Pre-acquisition ownership and equity structure","date":"2001-12-31","detail":"Cinergy’s year-end system-company filing identified CinCap Madison, LLC as a 680 MW natural-gas-fired generation facility; CinCap VIII held a 100% equity investment in CinCap Madison."},{"event":"Purchase petition filed","date":"2001-12-27","detail":"PSI Energy and CinCap filed a joint petition seeking authority for PSI to purchase the 576 MW summer-rated Madison Generating Station from CinCap, a wholly owned Cinergy subsidiary and PSI affiliate."},{"event":"FERC transfer application","date":"2002-09-06","detail":"Cinergy Services filed, on behalf of PSI Energy, CinCap Madison, and CinCap VII, an application under Section 203 of the Federal Power Act for the necessary authorizations to transfer assets."},{"event":"Indiana regulatory approval","date":"2002-12-19","detail":"The Indiana Utility Regulatory Commission approved the PSI/CinCap settlement and authorized PSI to purchase Madison; the permitted price was based on the facilities’ net book value as of December 1, 2002."},{"event":"Asset-purchase agreement","date":"2003-02-05","detail":"The identified asset-purchase agreement was dated as of February 5, 2003, between CinCap Madison, LLC and PSI Energy, Inc.; the available record does not state a separate closing date."},{"event":"Corporate successor name change","date":"2006-10-01","detail":"PSI Energy, Inc. changed its name to Duke Energy Indiana, Inc., establishing the documented corporate continuity to the current Duke Energy Indiana ownership and operating identity."}] — Source · confidence: medium
- Timeline: [{"event":"Construction and commercial operation","date":"2000-06","detail":"Construction was completed before commissioning, and Madison began commercial operation in June 2000 as a natural-gas-fired combustion-turbine facility."},{"event":"Pre-acquisition ownership and equity structure","date":"2001-12-31","detail":"Cinergy’s year-end system-company filing identified CinCap Madison, LLC as a 680 MW natural-gas-fired generation facility; CinCap VIII held a 100% equity investment in CinCap Madison."},{"event":"Purchase petition filed","date":"2001-12-27","detail":"PSI Energy and CinCap filed a joint petition seeking authority for PSI to purchase the 576 MW summer-rated Madison Generating Station from CinCap, a wholly owned Cinergy subsidiary and PSI affiliate."},{"event":"FERC transfer application","date":"2002-09-06","detail":"Cinergy Services filed, on behalf of PSI Energy, CinCap Madison, and CinCap VII, an application under Section 203 of the Federal Power Act for the necessary authorizations to transfer assets."},{"event":"Indiana regulatory approval","date":"2002-12-19","detail":"The Indiana Utility Regulatory Commission approved the PSI/CinCap settlement and authorized PSI to purchase Madison; the permitted price was based on the facilities’ net book value as of December 1, 2002."},{"event":"Asset-purchase agreement","date":"2003-02-05","detail":"The identified asset-purchase agreement was dated as of February 5, 2003, between CinCap Madison, LLC and PSI Energy, Inc.; the available record does not state a separate closing date."},{"event":"Corporate successor name change","date":"2006-10-01","detail":"PSI Energy, Inc. changed its name to Duke Energy Indiana, Inc., establishing the documented corporate continuity to the current Duke Energy Indiana ownership and operating identity."}] — IURC News · confidence: medium
- Timeline: [{"event":"Construction and commercial operation","date":"2000-06","detail":"Construction was completed before commissioning, and Madison began commercial operation in June 2000 as a natural-gas-fired combustion-turbine facility."},{"event":"Pre-acquisition ownership and equity structure","date":"2001-12-31","detail":"Cinergy’s year-end system-company filing identified CinCap Madison, LLC as a 680 MW natural-gas-fired generation facility; CinCap VIII held a 100% equity investment in CinCap Madison."},{"event":"Purchase petition filed","date":"2001-12-27","detail":"PSI Energy and CinCap filed a joint petition seeking authority for PSI to purchase the 576 MW summer-rated Madison Generating Station from CinCap, a wholly owned Cinergy subsidiary and PSI affiliate."},{"event":"FERC transfer application","date":"2002-09-06","detail":"Cinergy Services filed, on behalf of PSI Energy, CinCap Madison, and CinCap VII, an application under Section 203 of the Federal Power Act for the necessary authorizations to transfer assets."},{"event":"Indiana regulatory approval","date":"2002-12-19","detail":"The Indiana Utility Regulatory Commission approved the PSI/CinCap settlement and authorized PSI to purchase Madison; the permitted price was based on the facilities’ net book value as of December 1, 2002."},{"event":"Asset-purchase agreement","date":"2003-02-05","detail":"The identified asset-purchase agreement was dated as of February 5, 2003, between CinCap Madison, LLC and PSI Energy, Inc.; the available record does not state a separate closing date."},{"event":"Corporate successor name change","date":"2006-10-01","detail":"PSI Energy, Inc. changed its name to Duke Energy Indiana, Inc., establishing the documented corporate continuity to the current Duke Energy Indiana ownership and operating identity."}] — Source · confidence: medium
- Commercial parties.0: {"relationship":"Current owner and operator","name":"Duke Energy Indiana, LLC","detail":"Current owner and operator of Madison. PSI Energy changed its name to Duke Energy Indiana around October 1, 2006.","official_url":"https://www.duke-energy.com/"} — Indiana Regulatory Commission approves settlement between PSI Energy, consumer counselor and commission staff · confidence: medium
- Commercial parties.1: {"relationship":"Acquirer and predecessor owner/operator","name":"PSI Energy, Inc.","detail":"PSI received Indiana regulatory authority in December 2002 to acquire Madison from the Cinergy group; the identified asset-purchase agreement with CinCap Madison was dated February 5, 2003.","official_url":null} — Indiana Regulatory Commission approves settlement between PSI Energy, consumer counselor and commission staff · confidence: medium
- Commercial parties.1: {"relationship":"Acquirer and predecessor owner/operator","name":"PSI Energy, Inc.","detail":"PSI received Indiana regulatory authority in December 2002 to acquire Madison from the Cinergy group; the identified asset-purchase agreement with CinCap Madison was dated February 5, 2003.","official_url":null} — Source · confidence: medium
- Commercial parties.2: {"relationship":"Seller and legal transferor","name":"CinCap Madison, LLC","detail":"CinCap Madison was the legal transferor identified in the asset-purchase documentation and was described in Indiana regulatory records as the owner of Madison before PSI’s acquisition.","official_url":null} — Source · confidence: high
- Commercial parties.2: {"relationship":"Seller and legal transferor","name":"CinCap Madison, LLC","detail":"CinCap Madison was the legal transferor identified in the asset-purchase documentation and was described in Indiana regulatory records as the owner of Madison before PSI’s acquisition.","official_url":null} — Source · confidence: high
- Commercial parties.3: {"relationship":"Predecessor parent and seller-side affiliate","name":"Cinergy Corporation","detail":"CinCap Madison was described as a wholly owned subsidiary of Cinergy Corporation. Cinergy sold Madison’s output in the wholesale market before the PSI transfer and later merged with Duke Energy in 2006.","official_url":null} — Source · confidence: medium
- Timeline.2: {"event":"Purchase petition filed","date":"2001-12-27","detail":"PSI Energy and CinCap filed a joint petition seeking authority for PSI to purchase the 576 MW summer-rated Madison Generating Station from CinCap, a wholly owned Cinergy subsidiary and PSI affiliate."} — Source · confidence: high
- Timeline.4: {"event":"Indiana regulatory approval","date":"2002-12-19","detail":"The Indiana Utility Regulatory Commission approved the PSI/CinCap settlement and authorized PSI to purchase Madison; the permitted price was based on the facilities’ net book value as of December 1, 2002."} — IURC News · confidence: high
- Timeline.5: {"event":"Asset-purchase agreement","date":"2003-02-05","detail":"The identified asset-purchase agreement was dated as of February 5, 2003, between CinCap Madison, LLC and PSI Energy, Inc.; the available record does not state a separate closing date."} — Source · confidence: high
- Quality notes.0: The 2002 regulatory record described Madison as 576 MW summer-rated, while current plant records report 692 MW of nameplate capacity across eight units; the difference reflects different rating bases or reporting periods and is not, by itself, evidence of a documented expansion. — Indiana Regulatory Commission approves settlement... · confidence: medium
- Quality notes.1: The acquisition consideration was based on the December 1, 2002 net book value of the facilities, but no dollar amount is disclosed in the cited records. — Indiana Regulatory Commission approves settlement between PSI Energy, consumer counselor and commission staff · confidence: medium
- Quality notes.1: The acquisition consideration was based on the December 1, 2002 net book value of the facilities, but no dollar amount is disclosed in the cited records. — IURC News · confidence: medium
- Quality notes.2: The February 5, 2003 date is the date of the identified asset-purchase agreement; December 2002 is the date of Indiana regulatory approval, and the records do not establish a separate closing date. — Source · confidence: high
- Quality notes.2: The February 5, 2003 date is the date of the identified asset-purchase agreement; December 2002 is the date of Indiana regulatory approval, and the records do not establish a separate closing date. — Indiana Regulatory Commission approves settlement between PSI Energy, consumer counselor and commission staff · confidence: high
- Quality notes.3: No expansion, repowering, or retirement milestone is documented in the cited history; current records identify the facility as operating. — Duke Energy Indiana, Madison Generating Station · confidence: medium
- Later sale or transfer: No later sale or ownership transfer is evidenced. Later records continue to identify Duke Energy Indiana, LLC as the 100% owner of Madison. — Madison power station - Global Energy Monitor · confidence: medium
- Status detail: Madison is currently operating. The available unit-level record explicitly lists CT2 through CT8 as operating, and the plant profile identifies eight gas-turbine units. The cited records do not provide a cessation, deactivation, mothball, standby, seasonal-operation, closure, or repowering date. — Madison power station - Global Energy Monitor · confidence: medium
- Operating status: operating — Madison power station - Global Energy Monitor · confidence: medium

## Timeline

- 2001-12-31 — Pre-acquisition ownership and equity structure
  Cinergy’s year-end system-company filing identified CinCap Madison, LLC as a 680 MW natural-gas-fired generation facility; CinCap VIII held a 100% equity investment in CinCap Madison.
  Source: Source (https://www.sec.gov/Archives/edgar/data/899652/000089965202000035/formu5s2001.htm)
- 2002-09-06 — FERC transfer application
  Cinergy Services filed, on behalf of PSI Energy, CinCap Madison, and CinCap VII, an application under Section 203 of the Federal Power Act for the necessary authorizations to transfer assets.
  Source: Federal Register :: Cinergy Services, Inc., on Behalf of PSI Energy, Inc., CinCap Madison, LLC, CinCap VII, LLC; Notice of Filing (https://www.federalregister.gov/documents/2002/09/17/02-23568/cinergy-services-inc-on-behalf-of-psi-energy-inc-cincap-madison-llc-cincap-vii-llc-notice-of-filing)
- 2006-10-01 — Corporate successor name change
  PSI Energy, Inc. changed its name to Duke Energy Indiana, Inc., establishing the documented corporate continuity to the current Duke Energy Indiana ownership and operating identity.
  Source: Source (https://www.nrc.gov/docs/ML1324/ML13241A250.pdf)

## Sources

- [Power Plants - Our Company](https://www.duke-energy.com/our-company/about-us/power-plants) — duke-energy.com · tier other
- [MBR | Index](https://mbrweb.ferc.gov/SearchlkpEIA/Index?page=232) — mbrweb.ferc.gov · tier regulatory
- [Source](https://www.epa.gov/sites/default/files/2017-06/documents/epa-hq-oar-2009-0491-3875.pdf) — epa.gov · tier regulatory
- [Duke Energy Indiana, Madison Generating Station](https://ohioepa.commentinput.com/?id=Sg3D8Ur4k) — ohioepa.commentinput.com · tier other
- [duk-20251231](https://www.sec.gov/Archives/edgar/data/1326160/000132616026000014/duk-20251231.htm) — sec.gov · tier regulatory
- [Madison power station - Global Energy Monitor](https://www.gem.wiki/Madison_power_station) — gem.wiki · tier other
- [7E Gas Turbine (7E.03)](https://www.gevernova.com/gas-power/products/gas-turbines/7e) — gevernova.com · tier other
- [Indiana Regulatory Commission approves settlement between PSI Energy, consumer counselor and commission staff](https://www.power-eng.com/business/policy-and-regulation/indiana-regulatory-commission-approves-settlement-between-psi-energy-consumer-counselor-and-commission-staff/) — power-eng.com · tier other
- [Source](https://www.sec.gov/Archives/edgar/data/20290/000110465906013527/a06-2362_110k.htm) — sec.gov · tier regulatory
- [Source](https://www.sec.gov/Archives/edgar/data/899652/000089965202000035/formu5s2001.htm) — sec.gov · tier regulatory
- [IURC News](https://www.in.gov/iurc/files/42145_121902.html) — in.gov · tier regulatory
- [Source](https://www.in.gov/iurc/files/rf_energy_02.pdf) — in.gov · tier regulatory
- [Federal Register :: Cinergy Services, Inc., on Behalf of PSI Energy, Inc., CinCap Madison, LLC, CinCap VII, LLC; Notice of Filing](https://www.federalregister.gov/documents/2002/09/17/02-23568/cinergy-services-inc-on-behalf-of-psi-energy-inc-cincap-madison-llc-cincap-vii-llc-notice-of-filing) — federalregister.gov · tier regulatory
- [Source](https://www.nrc.gov/docs/ML1324/ML13241A250.pdf) — nrc.gov · tier regulatory
- [Transmission Expansion Advisory Committee](https://www.pjm.com/-/media/DotCom/committees-groups/committees/teac/2025/20250708/20250708-item-08---deok-supplemental-projects.pdf) — pjm.com · tier other
- [2023-rtep-report.pdf](https://www.pjm.com/-/media/DotCom/library/reports-notices/2023-rtep/2023-rtep-report.pdf) — pjm.com · tier other

## Data quality

- The 2002 regulatory record described Madison as 576 MW summer-rated, while current plant records report 692 MW of nameplate capacity across eight units; the difference reflects different rating bases or reporting periods and is not, by itself, evidence of a documented expansion. The February 5, 2003 date is the date of the identified asset-purchase agreement; December 2002 is the date of Indiana regulatory approval, and the records do not establish a separate closing date. No expansion, repowering, or retirement milestone is documented in the cited history; current records identify the facility as operating.

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Canonical page: https://askthegrid.com/assets/facilities/madison

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