CPV St Charles Energy Center
CPV Maryland, LLCCharles County
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.
Mapped infrastructure geometry associated with this asset.
Natural Gas Fired Combined Cycle
CPV St Charles Energy Center is operating.
PJM
PJM · Charles County
EIA plant 56846 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| GTG1 | Natural Gas Fired Combined Cycle | Operating | 223.6 | Unknown |
| GTG2 | Natural Gas Fired Combined Cycle | Operating | 223.6 | Unknown |
| STGEN | Natural Gas Fired Combined Cycle | Operating | 328.1 | Unknown |
Similar plants ranked by technology, capacity, and distance.
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| GTG1 | 223.6 MW 215.3 MW summer | Natural Gas Fired Combined Cycle CT | Feb 2017 | Operating |
| GTG2 | 223.6 MW 213.8 MW summer | Natural Gas Fired Combined Cycle CT | Feb 2017 | Operating |
| STGEN | 328.1 MW 304.2 MW summer | Natural Gas Fired Combined Cycle CA | Feb 2017 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
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.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
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.
The originally permitted 725 MW facility increased output to 745 MW in early 2017 through upgraded technology, with Maryland Public Service Commission approval.
EIA-860 lists generator GTG1, generator GTG2, generator STGEN with this operating date.
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.
CPV Maryland closed a $450 million refinancing consisting of a $350 million Term Loan B and a $100 million revolver.
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.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
CPV St Charles Energy Center reports 775.3 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
CPV St Charles Energy Center is a Natural Gas Fired Combined Cycle facility in Charles County, MD, participating in the PJM market.
CPV St Charles Energy Center is in Charles County, MD, inside the PJM balancing area.
CPV St Charles Energy Center is operated by CPV Maryland LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
CPV St Charles Energy Center reported 3,806.4 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
By capacity, CPV St Charles Energy Center ranks #153 of 540 operating plants of the same technology nationally. It ranks #3 of 5 in MD.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.