# CPV St Charles Energy Center

PJM Natural Gas Fired Combined Cycle · https://askthegrid.com/assets/facilities/cpv-st-charles-energy-center

CPV St Charles Energy Center is a natural gas-fired power facility with 775.3 MW of EIA-reported nameplate capacity in Charles County, Maryland, registered as EIA Plant ID 56846. Osaka Gas is the current owner; CPV Maryland LLC is the registered plant entity or operator. The plant's generating configuration is natural-gas-fired 2 1 combined-cycle plant with two GE 7F 5-Series gas turbines and one D-11A steam turbine with associated generators.
Pepco · 230 kV · Potomac Electric Power Co. (Pepco).

## Key facts

- Technology: Natural Gas Fired Combined Cycle
- Power capacity: 775.3 MW
- Operating status: operating

## Grid and market context

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

## Source-backed facts

- Identifiers: [{"value":"56846","system":"EIA plant ID"},{"value":"56846","system":"EPA ORISPL / Facility ID"},{"value":"GTG1","system":"EIA generator ID"},{"value":"GTG2","system":"EIA generator ID"},{"value":"STGEN","system":"EIA generator ID"},{"value":"G601","system":"EIA unit code"},{"value":"PJM Interconnection, LLC","system":"Balancing authority"},{"value":"PJM","system":"ISO/RTO market"},{"value":"SWMAAC","system":"PJM capacity zone"},{"value":"Pepco","system":"PJM LMP/location designation"},{"value":"ER13-343-001","system":"FERC MBR docket"},{"value":"2488; 2489; 2490","system":"FERC MBR asset IDs for GTG1, GTG2, and STGEN"},{"value":"PJMF; PJM AP South","system":"FERC market/balancing-area and submarket designations"},{"value":"9437","system":"Maryland PSC CPCN case"},{"value":"9280","system":"Maryland PSC CPCN modification case"},{"value":"24-017-0235","system":"Maryland operating air permit"}] — MBR | Asset Appendix Report · confidence: medium
- Identifiers: [{"value":"56846","system":"EIA plant ID"},{"value":"56846","system":"EPA ORISPL / Facility ID"},{"value":"GTG1","system":"EIA generator ID"},{"value":"GTG2","system":"EIA generator ID"},{"value":"STGEN","system":"EIA generator ID"},{"value":"G601","system":"EIA unit code"},{"value":"PJM Interconnection, LLC","system":"Balancing authority"},{"value":"PJM","system":"ISO/RTO market"},{"value":"SWMAAC","system":"PJM capacity zone"},{"value":"Pepco","system":"PJM LMP/location designation"},{"value":"ER13-343-001","system":"FERC MBR docket"},{"value":"2488; 2489; 2490","system":"FERC MBR asset IDs for GTG1, GTG2, and STGEN"},{"value":"PJMF; PJM AP South","system":"FERC market/balancing-area and submarket designations"},{"value":"9437","system":"Maryland PSC CPCN case"},{"value":"9280","system":"Maryland PSC CPCN modification case"},{"value":"24-017-0235","system":"Maryland operating air permit"}] — Case Search — DMS Portal — Maryland PSC · confidence: medium
- Identifiers: [{"value":"56846","system":"EIA plant ID"},{"value":"56846","system":"EPA ORISPL / Facility ID"},{"value":"GTG1","system":"EIA generator ID"},{"value":"GTG2","system":"EIA generator ID"},{"value":"STGEN","system":"EIA generator ID"},{"value":"G601","system":"EIA unit code"},{"value":"PJM Interconnection, LLC","system":"Balancing authority"},{"value":"PJM","system":"ISO/RTO market"},{"value":"SWMAAC","system":"PJM capacity zone"},{"value":"Pepco","system":"PJM LMP/location designation"},{"value":"ER13-343-001","system":"FERC MBR docket"},{"value":"2488; 2489; 2490","system":"FERC MBR asset IDs for GTG1, GTG2, and STGEN"},{"value":"PJMF; PJM AP South","system":"FERC market/balancing-area and submarket designations"},{"value":"9437","system":"Maryland PSC CPCN case"},{"value":"9280","system":"Maryland PSC CPCN modification case"},{"value":"24-017-0235","system":"Maryland operating air permit"}] — CPV St Charles T5 FS 2024 · confidence: medium
- Official project url: https://cpv.com/our-fleet/cpv-st-charles-energy-center/ — CPV St. Charles Energy Center - Competitive Power Ventures · confidence: high
- Description: CPV St Charles Energy Center is a natural-gas-fired combined-cycle generating facility in Waldorf, Charles County, Maryland. The facility comprises three operating generators with 775.3 MW of nameplate capacity in the EIA-linked operating record, while CPV’s project materials describe 745 MW of installed capacity. It began operation in February 2017 and sells capacity, energy, and ancillary services into PJM’s SWMAAC zone. — CPV St. Charles Energy Center - Competitive Power Ventures · confidence: medium
- Description: CPV St Charles Energy Center is a natural-gas-fired combined-cycle generating facility in Waldorf, Charles County, Maryland. The facility comprises three operating generators with 775.3 MW of nameplate capacity in the EIA-linked operating record, while CPV’s project materials describe 745 MW of installed capacity. It began operation in February 2017 and sells capacity, energy, and ancillary services into PJM’s SWMAAC zone. — Competitive Power Ventures, Marubeni Corporation, Toyota Tsusho & Osaka Gas USA Achieve Commercial Operation At 725 MW CPV St. Charles Energy Center Maryland - Competitive Power Ventures · confidence: medium
- Canonical name: CPV St Charles Energy Center — CPV St. Charles Energy Center - Competitive Power Ventures · confidence: high
- Identifiers.2: {"value":"GTG1","system":"EIA generator ID"} — MBR | Asset Appendix Report · confidence: medium
- Identifiers.3: {"value":"GTG2","system":"EIA generator ID"} — MBR | Asset Appendix Report · confidence: high
- Identifiers.8: {"value":"SWMAAC","system":"PJM capacity zone"} — Competitive Power Ventures, Marubeni Corporation, Toyota Tsusho & Osaka Gas USA Achieve Commercial Operation At 725 MW CPV St. Charles Energy Center Maryland - Competitive Power Ventures · confidence: high
- Identifiers.10: {"value":"ER13-343-001","system":"FERC MBR docket"} — MBR | Asset Appendix Report · confidence: high
- Identifiers.11: {"value":"2488; 2489; 2490","system":"FERC MBR asset IDs for GTG1, GTG2, and STGEN"} — MBR | Asset Appendix Report · confidence: high
- Identifiers.12: {"value":"PJMF; PJM AP South","system":"FERC market/balancing-area and submarket designations"} — MBR | Asset Appendix Report · confidence: medium
- Identifiers.14: {"value":"9280","system":"Maryland PSC CPCN modification case"} — Case Search — DMS Portal — Maryland PSC · confidence: high
- Identifiers.15: {"value":"24-017-0235","system":"Maryland operating air permit"} — CPV St Charles T5 FS 2024 · confidence: medium
- Parties.0: {"relationship":"Legal owner and current operator","name":"CPV Maryland, LLC","official_url":"https://cpv.com/"} — CPV St Charles T5 FS 2024 · confidence: high
- Parties.1: {"relationship":"Project manager and developer","name":"Competitive Power Ventures, Inc.","official_url":"https://cpv.com/"} — Competitive Power Ventures, Marubeni Corporation, Toyota Tsusho & Osaka Gas USA Achieve Commercial Operation At 725 MW CPV St. Charles Energy Center Maryland - Competitive Power Ventures · confidence: medium
- Parties.3: {"relationship":"Equity owner, 25%","name":"Marubeni Corporation","official_url":"https://www.marubeni.com/en/"} — News | OSAKA GAS · confidence: high
- Parties.4: {"relationship":"Equity owner, 25%","name":"Osaka Gas","official_url":"https://www.osakagas.co.jp/en/"} — News | OSAKA GAS · confidence: medium
- Parties.5: {"relationship":"Equity owner, 25%","name":"Toyota Tsusho Corporation","official_url":"https://www.toyota-tsusho.com/english/"} — News | OSAKA GAS · confidence: high
- Parties.6: {"relationship":"Equity owner, 25%","name":"CPV","official_url":"https://cpv.com/"} — News | OSAKA GAS · confidence: medium
- Parties.7: {"relationship":"EPC and construction contractor","name":"SNC-Lavalin Constructors Inc.","official_url":"https://www.atkinsrealis.com/"} — Competitive Power Ventures, Marubeni Corporation, Toyota Tsusho & Osaka Gas USA Achieve Commercial Operation At 725 MW CPV St. Charles Energy Center Maryland - Competitive Power Ventures · confidence: medium
- Parties.8: {"relationship":"Operations and maintenance service provider at commercial operation","name":"EthosEnergy Power Plant Services, LLC","official_url":"https://www.ethosenergy.com/"} — Competitive Power Ventures, Marubeni Corporation, Toyota Tsusho & Osaka Gas USA Achieve Commercial Operation At 725 MW CPV St. Charles Energy Center Maryland - Competitive Power Ventures · confidence: medium
- Parties.9: {"relationship":"Gas- and steam-turbine OEM","name":"General Electric (GE)","official_url":"https://www.gevernova.com/"} — CPV St. Charles Energy Center - Competitive Power Ventures · confidence: medium
- Product url: https://www.gevernova.com/gas-power/products/gas-turbines/7f — 7F Heavy Duty Gas Turbine | 7F.04/7F.05 | GE Vernova · confidence: high
- Equipment models: [{"manufacturer_domain":"gevernova.com","product_url":"https://www.gevernova.com/gas-power/products/gas-turbines/7f","count":2,"unit_mw":223.6,"name":"GE 7F.05 gas turbine"},{"manufacturer_domain":"gevernova.com","product_url":"https://www.gevernova.com/content/dam/gepower-steam/global/en_US/documents/Steam-Product-Catalog.pdf","count":1,"unit_mw":328.1,"name":"GE D-11A (D11) steam turbine"}] — STEAM POWER PRODUCT CATALOG · confidence: medium
- Manufacturer name: General Electric (GE) — 7F Heavy Duty Gas Turbine | 7F.04/7F.05 | GE Vernova · confidence: high
- Equipment models.1: {"manufacturer_domain":"gevernova.com","product_url":"https://www.gevernova.com/content/dam/gepower-steam/global/en_US/documents/Steam-Product-Catalog.pdf","count":1,"unit_mw":328.1,"name":"GE D-11A (D11) steam turbine"} — STEAM POWER PRODUCT CATALOG · confidence: medium
- Quality notes: ["Capacity figures vary by source and reporting basis: CPV’s project materials describe 745 MW of installed capacity, the original permit and financing announcements describe 725 MW, and the EIA-linked operating record reports 775.3 MW of nameplate capacity across three generators.","The August 2014 transaction was a land acquisition by CPV from St. Charles Companies, not a sale of an operating power plant. The May 2026 transaction was an equity-interest asset swap: CPV Group received the partner’s remaining 25% interest in CPV Maryland in exchange for its 10% interest in CPV Three Rivers plus immaterial cash; the partner’s identity was not disclosed in the retrieved announcement.","No retirement or repowering milestone was identified. The documented modification was an early-2017 output increase from the originally permitted 725 MW to 745 MW, and the facility remains described as operational."] — CPV St. Charles Energy Center - Competitive Power Ventures · confidence: medium
- Quality notes: ["Capacity figures vary by source and reporting basis: CPV’s project materials describe 745 MW of installed capacity, the original permit and financing announcements describe 725 MW, and the EIA-linked operating record reports 775.3 MW of nameplate capacity across three generators.","The August 2014 transaction was a land acquisition by CPV from St. Charles Companies, not a sale of an operating power plant. The May 2026 transaction was an equity-interest asset swap: CPV Group received the partner’s remaining 25% interest in CPV Maryland in exchange for its 10% interest in CPV Three Rivers plus immaterial cash; the partner’s identity was not disclosed in the retrieved announcement.","No retirement or repowering milestone was identified. The documented modification was an early-2017 output increase from the originally permitted 725 MW to 745 MW, and the facility remains described as operational."] — St. Charles Companies Completes $13 Million Sale Of 76 Acres To Competitive Power Ventures · confidence: medium
- Financing summary: Initial project financing closed on 2014-08-08. CPV, Marubeni, and Toyota Tsusho announced financing with GE Energy Financial Services and 14 other lenders for the $775 million project; the detailed financing amount was not disclosed, but GE served as administrative agent and, through GE Capital Markets, primary lead arranger and bookrunner for $550 million of senior secured credit facilities. This project financing is distinct from the approximately $13 million land-sale consideration paid to St. Charles Companies. A separate $450 million CPV Maryland refinancing closed in 2021-05 and comprised a $350 million Term Loan B and a $100 million revolver, with MUFG Union Bank, BNP Paribas, Mizuho Bank, and Crédit Agricole acting as joint lead arrangers. — Milbank Advises the Lenders in the Refinancing of the 745MW St. Charles Energy Center · confidence: medium
- Financing summary: Initial project financing closed on 2014-08-08. CPV, Marubeni, and Toyota Tsusho announced financing with GE Energy Financial Services and 14 other lenders for the $775 million project; the detailed financing amount was not disclosed, but GE served as administrative agent and, through GE Capital Markets, primary lead arranger and bookrunner for $550 million of senior secured credit facilities. This project financing is distinct from the approximately $13 million land-sale consideration paid to St. Charles Companies. A separate $450 million CPV Maryland refinancing closed in 2021-05 and comprised a $350 million Term Loan B and a $100 million revolver, with MUFG Union Bank, BNP Paribas, Mizuho Bank, and Crédit Agricole acting as joint lead arrangers. — St. Charles Companies Completes $13 Million Sale Of 76 Acres To Competitive Power Ventures · confidence: medium
- Timeline: [{"event":"Certificate of approval","date":"2008-12","detail":"CPV received a final non-appealable Certificate of Public Convenience and Necessity from the Maryland Public Service Commission and executed the county development agreement giving it the right to construct the facility."},{"event":"Project financing close","date":"2014-08-08","detail":"CPV, Marubeni, and Toyota Tsusho closed project financing with GE Energy Financial Services and 14 other lenders for the $775 million CPV St. Charles project. GE anchored $550 million of senior secured credit facilities."},{"event":"Development-site acquisition","date":"2014-08-11","detail":"St. Charles Companies sold 76 acres in Piney Reach Business Park to Competitive Power Ventures for approximately $13 million for development of the planned 725 MW natural-gas plant. The seller stated that the sale completed a contract first executed in 2007."},{"event":"Construction groundbreaking","date":"2014-12-02","detail":"CPV and its partners broke ground on the $775 million, originally planned 725 MW CPV St. Charles Energy Center in Waldorf."},{"event":"First unit online","date":"2017-02-01","detail":"The EIA-linked operating record identifies February 1, 2017 as the first-unit online date."},{"event":"Commercial operation","date":"2017-03-14","detail":"The 725 MW project achieved commercial operation after approximately 30 months of construction and more than three months of testing. SNC-Lavalin Constructors built the facility and EthosEnergy Power Plant Services operated it at commercial operation."},{"event":"Output expansion","date":"2017","detail":"The originally permitted 725 MW facility increased output to 745 MW in early 2017 through upgraded technology, with Maryland Public Service Commission approval."},{"event":"Project refinancing","date":"2021-05","detail":"CPV Maryland closed a $450 million refinancing consisting of a $350 million Term Loan B and a $100 million revolver."},{"event":"Ownership-transfer agreement","date":"2026-03-03","detail":"CPV Group agreed to exchange its 10% interest in CPV Three Rivers, plus a small cash payment, for its partner’s 25% interest in CPV Maryland. The partner was not identified in the disclosed announcement."},{"event":"Full-ownership closing","date":"2026-05-13","detail":"CPV Group completed the asset swap, acquired the remaining 25% interest in CPV Maryland, and became the full owner of the CPV Maryland power plant. The transaction included immaterial cash consideration and was not reported as a conventional cash sale."}] — CPV St. Charles Energy Center - Competitive Power Ventures · confidence: medium
- Timeline: [{"event":"Certificate of approval","date":"2008-12","detail":"CPV received a final non-appealable Certificate of Public Convenience and Necessity from the Maryland Public Service Commission and executed the county development agreement giving it the right to construct the facility."},{"event":"Project financing close","date":"2014-08-08","detail":"CPV, Marubeni, and Toyota Tsusho closed project financing with GE Energy Financial Services and 14 other lenders for the $775 million CPV St. Charles project. GE anchored $550 million of senior secured credit facilities."},{"event":"Development-site acquisition","date":"2014-08-11","detail":"St. Charles Companies sold 76 acres in Piney Reach Business Park to Competitive Power Ventures for approximately $13 million for development of the planned 725 MW natural-gas plant. The seller stated that the sale completed a contract first executed in 2007."},{"event":"Construction groundbreaking","date":"2014-12-02","detail":"CPV and its partners broke ground on the $775 million, originally planned 725 MW CPV St. Charles Energy Center in Waldorf."},{"event":"First unit online","date":"2017-02-01","detail":"The EIA-linked operating record identifies February 1, 2017 as the first-unit online date."},{"event":"Commercial operation","date":"2017-03-14","detail":"The 725 MW project achieved commercial operation after approximately 30 months of construction and more than three months of testing. SNC-Lavalin Constructors built the facility and EthosEnergy Power Plant Services operated it at commercial operation."},{"event":"Output expansion","date":"2017","detail":"The originally permitted 725 MW facility increased output to 745 MW in early 2017 through upgraded technology, with Maryland Public Service Commission approval."},{"event":"Project refinancing","date":"2021-05","detail":"CPV Maryland closed a $450 million refinancing consisting of a $350 million Term Loan B and a $100 million revolver."},{"event":"Ownership-transfer agreement","date":"2026-03-03","detail":"CPV Group agreed to exchange its 10% interest in CPV Three Rivers, plus a small cash payment, for its partner’s 25% interest in CPV Maryland. The partner was not identified in the disclosed announcement."},{"event":"Full-ownership closing","date":"2026-05-13","detail":"CPV Group completed the asset swap, acquired the remaining 25% interest in CPV Maryland, and became the full owner of the CPV Maryland power plant. The transaction included immaterial cash consideration and was not reported as a conventional cash sale."}] — St. Charles Companies Completes $13 Million Sale Of 76 Acres To Competitive Power Ventures · confidence: medium
- Timeline: [{"event":"Certificate of approval","date":"2008-12","detail":"CPV received a final non-appealable Certificate of Public Convenience and Necessity from the Maryland Public Service Commission and executed the county development agreement giving it the right to construct the facility."},{"event":"Project financing close","date":"2014-08-08","detail":"CPV, Marubeni, and Toyota Tsusho closed project financing with GE Energy Financial Services and 14 other lenders for the $775 million CPV St. Charles project. GE anchored $550 million of senior secured credit facilities."},{"event":"Development-site acquisition","date":"2014-08-11","detail":"St. Charles Companies sold 76 acres in Piney Reach Business Park to Competitive Power Ventures for approximately $13 million for development of the planned 725 MW natural-gas plant. The seller stated that the sale completed a contract first executed in 2007."},{"event":"Construction groundbreaking","date":"2014-12-02","detail":"CPV and its partners broke ground on the $775 million, originally planned 725 MW CPV St. Charles Energy Center in Waldorf."},{"event":"First unit online","date":"2017-02-01","detail":"The EIA-linked operating record identifies February 1, 2017 as the first-unit online date."},{"event":"Commercial operation","date":"2017-03-14","detail":"The 725 MW project achieved commercial operation after approximately 30 months of construction and more than three months of testing. SNC-Lavalin Constructors built the facility and EthosEnergy Power Plant Services operated it at commercial operation."},{"event":"Output expansion","date":"2017","detail":"The originally permitted 725 MW facility increased output to 745 MW in early 2017 through upgraded technology, with Maryland Public Service Commission approval."},{"event":"Project refinancing","date":"2021-05","detail":"CPV Maryland closed a $450 million refinancing consisting of a $350 million Term Loan B and a $100 million revolver."},{"event":"Ownership-transfer agreement","date":"2026-03-03","detail":"CPV Group agreed to exchange its 10% interest in CPV Three Rivers, plus a small cash payment, for its partner’s 25% interest in CPV Maryland. The partner was not identified in the disclosed announcement."},{"event":"Full-ownership closing","date":"2026-05-13","detail":"CPV Group completed the asset swap, acquired the remaining 25% interest in CPV Maryland, and became the full owner of the CPV Maryland power plant. The transaction included immaterial cash consideration and was not reported as a conventional cash sale."}] — Competitive Power Ventures Marubeni Corporation Toyota... · confidence: medium
- Timeline: [{"event":"Certificate of approval","date":"2008-12","detail":"CPV received a final non-appealable Certificate of Public Convenience and Necessity from the Maryland Public Service Commission and executed the county development agreement giving it the right to construct the facility."},{"event":"Project financing close","date":"2014-08-08","detail":"CPV, Marubeni, and Toyota Tsusho closed project financing with GE Energy Financial Services and 14 other lenders for the $775 million CPV St. Charles project. GE anchored $550 million of senior secured credit facilities."},{"event":"Development-site acquisition","date":"2014-08-11","detail":"St. Charles Companies sold 76 acres in Piney Reach Business Park to Competitive Power Ventures for approximately $13 million for development of the planned 725 MW natural-gas plant. The seller stated that the sale completed a contract first executed in 2007."},{"event":"Construction groundbreaking","date":"2014-12-02","detail":"CPV and its partners broke ground on the $775 million, originally planned 725 MW CPV St. Charles Energy Center in Waldorf."},{"event":"First unit online","date":"2017-02-01","detail":"The EIA-linked operating record identifies February 1, 2017 as the first-unit online date."},{"event":"Commercial operation","date":"2017-03-14","detail":"The 725 MW project achieved commercial operation after approximately 30 months of construction and more than three months of testing. SNC-Lavalin Constructors built the facility and EthosEnergy Power Plant Services operated it at commercial operation."},{"event":"Output expansion","date":"2017","detail":"The originally permitted 725 MW facility increased output to 745 MW in early 2017 through upgraded technology, with Maryland Public Service Commission approval."},{"event":"Project refinancing","date":"2021-05","detail":"CPV Maryland closed a $450 million refinancing consisting of a $350 million Term Loan B and a $100 million revolver."},{"event":"Ownership-transfer agreement","date":"2026-03-03","detail":"CPV Group agreed to exchange its 10% interest in CPV Three Rivers, plus a small cash payment, for its partner’s 25% interest in CPV Maryland. The partner was not identified in the disclosed announcement."},{"event":"Full-ownership closing","date":"2026-05-13","detail":"CPV Group completed the asset swap, acquired the remaining 25% interest in CPV Maryland, and became the full owner of the CPV Maryland power plant. The transaction included immaterial cash consideration and was not reported as a conventional cash sale."}] — Competitive Power Ventures, Marubeni Corporation, Toyota Tsusho & Osaka Gas USA Achieve Commercial Operation At 725 MW CPV St. Charles Energy Center Maryland - Competitive Power Ventures · confidence: medium
- Timeline: [{"event":"Certificate of approval","date":"2008-12","detail":"CPV received a final non-appealable Certificate of Public Convenience and Necessity from the Maryland Public Service Commission and executed the county development agreement giving it the right to construct the facility."},{"event":"Project financing close","date":"2014-08-08","detail":"CPV, Marubeni, and Toyota Tsusho closed project financing with GE Energy Financial Services and 14 other lenders for the $775 million CPV St. Charles project. GE anchored $550 million of senior secured credit facilities."},{"event":"Development-site acquisition","date":"2014-08-11","detail":"St. Charles Companies sold 76 acres in Piney Reach Business Park to Competitive Power Ventures for approximately $13 million for development of the planned 725 MW natural-gas plant. The seller stated that the sale completed a contract first executed in 2007."},{"event":"Construction groundbreaking","date":"2014-12-02","detail":"CPV and its partners broke ground on the $775 million, originally planned 725 MW CPV St. Charles Energy Center in Waldorf."},{"event":"First unit online","date":"2017-02-01","detail":"The EIA-linked operating record identifies February 1, 2017 as the first-unit online date."},{"event":"Commercial operation","date":"2017-03-14","detail":"The 725 MW project achieved commercial operation after approximately 30 months of construction and more than three months of testing. SNC-Lavalin Constructors built the facility and EthosEnergy Power Plant Services operated it at commercial operation."},{"event":"Output expansion","date":"2017","detail":"The originally permitted 725 MW facility increased output to 745 MW in early 2017 through upgraded technology, with Maryland Public Service Commission approval."},{"event":"Project refinancing","date":"2021-05","detail":"CPV Maryland closed a $450 million refinancing consisting of a $350 million Term Loan B and a $100 million revolver."},{"event":"Ownership-transfer agreement","date":"2026-03-03","detail":"CPV Group agreed to exchange its 10% interest in CPV Three Rivers, plus a small cash payment, for its partner’s 25% interest in CPV Maryland. The partner was not identified in the disclosed announcement."},{"event":"Full-ownership closing","date":"2026-05-13","detail":"CPV Group completed the asset swap, acquired the remaining 25% interest in CPV Maryland, and became the full owner of the CPV Maryland power plant. The transaction included immaterial cash consideration and was not reported as a conventional cash sale."}] — Milbank Advises the Lenders in the Refinancing of the 745MW St. Charles Energy Center · confidence: medium
- Timeline: [{"event":"Certificate of approval","date":"2008-12","detail":"CPV received a final non-appealable Certificate of Public Convenience and Necessity from the Maryland Public Service Commission and executed the county development agreement giving it the right to construct the facility."},{"event":"Project financing close","date":"2014-08-08","detail":"CPV, Marubeni, and Toyota Tsusho closed project financing with GE Energy Financial Services and 14 other lenders for the $775 million CPV St. Charles project. GE anchored $550 million of senior secured credit facilities."},{"event":"Development-site acquisition","date":"2014-08-11","detail":"St. Charles Companies sold 76 acres in Piney Reach Business Park to Competitive Power Ventures for approximately $13 million for development of the planned 725 MW natural-gas plant. The seller stated that the sale completed a contract first executed in 2007."},{"event":"Construction groundbreaking","date":"2014-12-02","detail":"CPV and its partners broke ground on the $775 million, originally planned 725 MW CPV St. Charles Energy Center in Waldorf."},{"event":"First unit online","date":"2017-02-01","detail":"The EIA-linked operating record identifies February 1, 2017 as the first-unit online date."},{"event":"Commercial operation","date":"2017-03-14","detail":"The 725 MW project achieved commercial operation after approximately 30 months of construction and more than three months of testing. SNC-Lavalin Constructors built the facility and EthosEnergy Power Plant Services operated it at commercial operation."},{"event":"Output expansion","date":"2017","detail":"The originally permitted 725 MW facility increased output to 745 MW in early 2017 through upgraded technology, with Maryland Public Service Commission approval."},{"event":"Project refinancing","date":"2021-05","detail":"CPV Maryland closed a $450 million refinancing consisting of a $350 million Term Loan B and a $100 million revolver."},{"event":"Ownership-transfer agreement","date":"2026-03-03","detail":"CPV Group agreed to exchange its 10% interest in CPV Three Rivers, plus a small cash payment, for its partner’s 25% interest in CPV Maryland. The partner was not identified in the disclosed announcement."},{"event":"Full-ownership closing","date":"2026-05-13","detail":"CPV Group completed the asset swap, acquired the remaining 25% interest in CPV Maryland, and became the full owner of the CPV Maryland power plant. The transaction included immaterial cash consideration and was not reported as a conventional cash sale."}] — Kenon’s OPC Unit Moves to Fully Consolidate Maryland Power Plant in Asset Swap - The Globe and Mail · confidence: medium
- Commercial parties.2: {"relationship":"Developer and project manager","name":"Competitive Power Ventures, Inc.","detail":"Managed and developed the project and acquired the 76-acre development site from St. Charles Companies in August 2014.","official_url":"https://cpv.com/"} — Competitive Power Ventures, Marubeni Corporation, Toyota Tsusho & Osaka Gas USA Achieve Commercial Operation At 725 MW CPV St. Charles Energy Center Maryland - Competitive Power Ventures · confidence: high
- Commercial parties.3: {"relationship":"Development-site seller and predecessor land owner","name":"St. Charles Companies","detail":"Sold 76 acres in Piney Reach Business Park to Competitive Power Ventures for approximately $13 million on 2014-08-11. The transaction concerned the development site rather than an operating power plant.","official_url":null} — St. Charles Companies Completes $13 Million Sale Of 76 Acres To Competitive Power Ventures · confidence: medium
- Commercial parties.4: {"relationship":"Original equity owner at commercial operation","name":"Marubeni Corporation","detail":"Held a 25% equity interest in the project at the time of the original ownership structure and participated in project financing and development.","official_url":"https://www.marubeni.com/en/"} — Source · confidence: medium
- Commercial parties.5: {"relationship":"Original equity owner at commercial operation","name":"Toyota Tsusho Corporation","detail":"Held a 25% equity interest in the project at the time of the original ownership structure and participated in project financing and development.","official_url":"https://www.toyota-tsusho.com/english/"} — Source · confidence: medium
- Commercial parties.6: {"relationship":"Original equity owner at commercial operation","name":"Osaka Gas USA Corporation","detail":"Was identified as an original project owner and held a 25% equity interest in the original ownership structure.","official_url":"https://www.osakagasusa.com/"} — Source · confidence: medium
- Commercial parties.7: {"relationship":"Engineering, procurement, and construction contractor","name":"SNC-Lavalin Constructors Inc.","detail":"Constructed the CPV St. Charles Energy Center under the project’s EPC arrangement.","official_url":"https://www.atkinsrealis.com/"} — Competitive Power Ventures, Marubeni Corporation, Toyota Tsusho & Osaka Gas USA Achieve Commercial Operation At 725 MW CPV St. Charles Energy Center Maryland - Competitive Power Ventures · confidence: medium
- Commercial parties.8: {"relationship":"Operations and maintenance provider at commercial operation","name":"EthosEnergy Power Plant Services, LLC","detail":"Operated the facility at commercial operation and was identified as the plant operations provider in the project announcement.","official_url":"https://www.ethosenergy.com/"} — Competitive Power Ventures, Marubeni Corporation, Toyota Tsusho & Osaka Gas USA Achieve Commercial Operation At 725 MW CPV St. Charles Energy Center Maryland - Competitive Power Ventures · confidence: medium
- Commercial parties.9: {"relationship":"Initial project-finance administrative agent and lead arranger","name":"GE Energy Financial Services","detail":"Acted as administrative agent and, through GE Capital Markets, primary lead arranger and bookrunner for $550 million of senior secured credit facilities in the 2014 project financing.","official_url":"https://www.gevernova.com/"} — Competitive Power Ventures, Marubeni Corporation & Toyota Tsusho Close Financing of $775 Million CPV St. Charles Energy Center in Maryland · confidence: medium
- Commercial parties.10: {"relationship":"2021 refinancing joint lead arranger","name":"MUFG Union Bank, N.A.","detail":"Served as a joint lead arranger for the $450 million CPV Maryland refinancing closed in May 2021.","official_url":"https://www.bk.mufg.jp/global/"} — Milbank Advises the Lenders in the Refinancing of the 745MW St. Charles Energy Center · confidence: medium
- Commercial parties.11: {"relationship":"2021 refinancing joint lead arranger","name":"BNP Paribas","detail":"Served as a joint lead arranger for the $450 million CPV Maryland refinancing closed in May 2021.","official_url":"https://group.bnpparibas/"} — Milbank Advises the Lenders in the Refinancing of the 745MW St. Charles Energy Center · confidence: high
- Commercial parties.12: {"relationship":"2021 refinancing joint lead arranger","name":"Mizuho Bank, Ltd.","detail":"Served as a joint lead arranger for the $450 million CPV Maryland refinancing closed in May 2021.","official_url":"https://www.mizuhogroup.com/"} — Milbank Advises the Lenders in the Refinancing of the 745MW St. Charles Energy Center · confidence: high
- Commercial parties.13: {"relationship":"2021 refinancing joint lead arranger","name":"Crédit Agricole Corporate and Investment Bank","detail":"Served as a joint lead arranger for the $450 million CPV Maryland refinancing closed in May 2021.","official_url":"https://www.credit-agricole.com/"} — Milbank Advises the Lenders in the Refinancing of the 745MW St. Charles Energy Center · confidence: high
- Quality notes.0: Capacity figures vary by source and reporting basis: CPV’s project materials describe 745 MW of installed capacity, the original permit and financing announcements describe 725 MW, and the EIA-linked operating record reports 775.3 MW of nameplate capacity across three generators. — CPV St. Charles Energy Center - Competitive Power Ventures · confidence: high
- Quality notes.1: The August 2014 transaction was a land acquisition by CPV from St. Charles Companies, not a sale of an operating power plant. The May 2026 transaction was an equity-interest asset swap: CPV Group received the partner’s remaining 25% interest in CPV Maryland in exchange for its 10% interest in CPV Three Rivers plus immaterial cash; the partner’s identity was not disclosed in the retrieved announcement. — St. Charles Companies Completes $13 Million Sale Of 76 Acres To Competitive Power Ventures · confidence: high
- Quality notes.2: No retirement or repowering milestone was identified. The documented modification was an early-2017 output increase from the originally permitted 725 MW to 745 MW, and the facility remains described as operational. — CPV St. Charles Energy Center - Competitive Power Ventures · confidence: medium
- Timeline.0: {"event":"Certificate of approval","date":"2008-12","detail":"CPV received a final non-appealable Certificate of Public Convenience and Necessity from the Maryland Public Service Commission and executed the county development agreement giving it the right to construct the facility."} — CPV St. Charles Energy Center - Competitive Power Ventures · confidence: high

## Timeline

- 2008-12 — Certificate of approval
  CPV received a final non-appealable Certificate of Public Convenience and Necessity from the Maryland Public Service Commission and executed the county development agreement giving it the right to construct the facility.
  Source: CPV St. Charles Energy Center - Competitive Power Ventures (https://cpv.com/our-fleet/cpv-st-charles-energy-center/)
- 2014-08-08 — Project financing close
  CPV, Marubeni, and Toyota Tsusho closed project financing with GE Energy Financial Services and 14 other lenders for the $775 million CPV St. Charles project. GE anchored $550 million of senior secured credit facilities.
  Source: Competitive Power Ventures, Marubeni Corporation & Toyota Tsusho Close Financing of $775 Million CPV St. Charles Energy Center in Maryland (https://www.prnewswire.com/news-releases/competitive-power-ventures-marubeni-corporation--toyota-tsusho-close-financing-of-775-million-cpv-st-charles-energy-center-in-maryland-270486501.html)
- 2017 — Output expansion
  The originally permitted 725 MW facility increased output to 745 MW in early 2017 through upgraded technology, with Maryland Public Service Commission approval.
  Source: CPV St. Charles Energy Center - Competitive Power Ventures (https://cpv.com/our-fleet/cpv-st-charles-energy-center/)
- 2017-03-14 — Commercial operation
  The 725 MW project achieved commercial operation after approximately 30 months of construction and more than three months of testing. SNC-Lavalin Constructors built the facility and EthosEnergy Power Plant Services operated it at commercial operation.
  Source: Competitive Power Ventures, Marubeni Corporation, Toyota Tsusho & Osaka Gas USA Achieve Commercial Operation At 725 MW CPV St. Charles Energy Center Maryland - Competitive Power Ventures (https://cpv.com/2017/03/14/competitive-power-ventures-marubeni-corporation-toyota-tsusho-osaka-gas-usa-achieve-commercial-operation-at-725-mw-cpv-st-charles-energy-center-maryland/)
- 2021-05 — Project refinancing
  CPV Maryland closed a $450 million refinancing consisting of a $350 million Term Loan B and a $100 million revolver.
  Source: Milbank Advises the Lenders in the Refinancing of the 745MW St. Charles Energy Center (https://www.milbank.com/en/news/milbank-advises-the-lenders-in-the-refinancing-of-the-745mw-st-charles-energy-center.html)
- 2026-03-03 — Ownership-transfer agreement
  CPV Group agreed to exchange its 10% interest in CPV Three Rivers, plus a small cash payment, for its partner’s 25% interest in CPV Maryland. The partner was not identified in the disclosed announcement.
  Source: OPC Energy Ltd. (TASE: OPCE): CPV Group Announces Closing of Agreement for Full Ownership of Maryland Power Plant (https://www.prnewswire.com/il/news-releases/opc-energy-ltd-tase-opce-cpv-group-announces-closing-of-agreement-for-full-ownership-of-maryland-power-plant-302770681.html)

## Sources

- [CPV St. Charles Energy Center - Competitive Power Ventures](https://cpv.com/our-fleet/cpv-st-charles-energy-center/) — cpv.com · tier other
- [MBR | Asset Appendix Report](https://mbrweb.ferc.gov/SearchMBRAssetAppendix/AssetAppendixDetails?AssetAppendixId=13628) — mbrweb.ferc.gov · tier regulatory
- [CPV St. Charles Energy Center: NOTICE OF PRE-HEARING CONFERENCE AND OPPORTUNITY TO INTERVENE - Competitive Power Ventures](https://cpv.com/cpv-st-charles-energy-center-notice-of-pre-hearing-conference-and-opportunity-to-intervene/) — cpv.com · tier other
- [Case Search — DMS Portal — Maryland PSC](https://webpscxb.psc.state.md.us/DMS/case/9280) — webpscxb.psc.state.md.us · tier other
- [CPV St Charles T5 FS 2024](https://mde.maryland.gov/programs/permits/AirManagementPermits/Test/CPV%20St%20Charles%20T5%20FS%202024.pdf) — mde.maryland.gov · tier regulatory
- [Competitive Power Ventures, Marubeni Corporation, Toyota Tsusho & Osaka Gas USA Achieve Commercial Operation At 725 MW CPV St. Charles Energy Center Maryland - Competitive Power Ventures](https://cpv.com/2017/03/14/competitive-power-ventures-marubeni-corporation-toyota-tsusho-osaka-gas-usa-achieve-commercial-operation-at-725-mw-cpv-st-charles-energy-center-maryland/) — cpv.com · tier other
- [News | OSAKA GAS](https://www.osakagas.co.jp/en/whatsnew/1256260_11885.html) — osakagas.co.jp · tier other
- [Source](https://cpv.com/2017/03/14/competitive-power-ventures-marubeni-corporation-toyota-tsusho-osaka-gas-usa-achieve-commercial-operation-at-725-mw-cpv-st-charles-energy-center-maryland) — cpv.com · tier other
- [Source](https://cpv.com/our-fleet/cpv-st-charles-energy-center) — cpv.com · tier other
- [Source](https://osakagas.co.jp/en/whatsnew/1256260_11885.html) — osakagas.co.jp · tier other
- [CPV St. Charles Energy Center](https://cpv.com/wp-content/uploads/2023/07/cpvstcharles-factsheet.pdf) — cpv.com · tier other
- [7F Heavy Duty Gas Turbine | 7F.04/7F.05 | GE Vernova](https://www.gevernova.com/gas-power/products/gas-turbines/7f) — gevernova.com · tier other
- [STEAM POWER PRODUCT CATALOG](https://www.gevernova.com/content/dam/gepower-steam/global/en_US/documents/Steam-Product-Catalog.pdf) — gevernova.com · tier other
- [St. Charles Companies Completes $13 Million Sale Of 76 Acres To Competitive Power Ventures](https://www.prnewswire.com/news-releases/st-charles-companies-completes-13-million-sale-of-76-acres-to-competitive-power-ventures-270791571.html) — prnewswire.com · tier other
- [OPC Energy Ltd. (TASE: OPCE): CPV Group Announces Closing of Agreement for Full Ownership of Maryland Power Plant](https://www.prnewswire.com/il/news-releases/opc-energy-ltd-tase-opce-cpv-group-announces-closing-of-agreement-for-full-ownership-of-maryland-power-plant-302770681.html) — prnewswire.com · tier other
- [Competitive Power Ventures, Marubeni Corporation & Toyota Tsusho Close Financing of $775 Million CPV St. Charles Energy Center in Maryland](https://www.prnewswire.com/news-releases/competitive-power-ventures-marubeni-corporation--toyota-tsusho-close-financing-of-775-million-cpv-st-charles-energy-center-in-maryland-270486501.html) — prnewswire.com · tier other
- [Milbank Advises the Lenders in the Refinancing of the 745MW St. Charles Energy Center](https://www.milbank.com/en/news/milbank-advises-the-lenders-in-the-refinancing-of-the-745mw-st-charles-energy-center.html) — milbank.com · tier other
- [Competitive Power Ventures Marubeni Corporation Toyota ...](https://www.poweronline.com/doc/competitive-power-ventures-marubeni-toyota-tsusho-break-megawatt-cpv-st-charles-energy-maryland-0001) — poweronline.com · tier other
- [Kenon’s OPC Unit Moves to Fully Consolidate Maryland Power Plant in Asset Swap - The Globe and Mail](https://www.theglobeandmail.com/investing/markets/stocks/KEN/pressreleases/554980/kenons-opc-unit-moves-to-fully-consolidate-maryland-power-plant-in-asset-swap/) — theglobeandmail.com · tier other
- [CPV Maryland Awarded Proximo’s 2021 North American Power Deal of the Year - Competitive Power Ventures](https://cpv.com/2022/03/07/cpv-maryland-awarded-proximos-2021-north-american-power-deal-of-the-year/) — cpv.com · tier other
- [Osaka Gas acquires participation in IPP Project in the U.S. | Energy Finance & Investment](https://ippjournal.com/news/osaka-gas-acquires-participation-in-ipp-project-in-the-u-s) — ippjournal.com · tier other
- [Participation in construction and operation of the St. Charles gas-fired power plant project in Maryland, U.S.A.](https://www.marubeni.com/en/news/2014/release/00037.html) — marubeni.com · tier other
- [PJM - Generation Deactivations](https://www.pjm.com/planning/service-requests/gen-deactivations.aspx) — pjm.com · tier other

## Data quality

- Capacity figures vary by source and reporting basis: CPV’s project materials describe 745 MW of installed capacity, the original permit and financing announcements describe 725 MW, and the EIA-linked operating record reports 775.3 MW of nameplate capacity across three generators. Charles Companies, not a sale of an operating power plant. The May 2026 transaction was an equity-interest asset swap: CPV Group received the partner’s remaining 25% interest in CPV Maryland in exchange for its 10% interest in CPV Three Rivers plus immaterial cash; the partner’s identity was not disclosed in the retrieved announcement. No retirement or repowering milestone was identified. The documented modification was an early-2017 output increase from the originally permitted 725 MW to 745 MW, and the facility remains described as operational.

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Canonical page: https://askthegrid.com/assets/facilities/cpv-st-charles-energy-center

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