Herbert A Wagner is a petroleum liquids facility with 773.7 MW of EIA-reported nameplate capacity in Anne Arundel County, Maryland, registered as EIA Plant ID 1554. H. A. Wagner LLC owns and operates the plant. The plant began commercial operation in 1966.
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Primary generation technology.
Anne Arundel County · PJM
Herbert A Wagner is currently operating; a closure or retirement is listed for May 31, 2029.
Baltimore Gas and Electric Company (BGE)
Best-supported operating milestone.
Petroleum Liquids
Herbert A Wagner is currently operating; a closure or retirement is listed for May 31, 2029.
Herbert A Wagner is currently operating; a closure or retirement is listed for May 31, 2029.
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 132.8 MW 126 MW summer | Petroleum Liquids Disillate Fuel Oil · ST | Feb 1956 Retirement: May 2025 | Operating |
| 2 | 136 MW 118 MW summer | Conventional Steam Coal Refined Coal · ST | Jan 1959 Retirement: Jun 2020 | Operating |
| 3 | 359 MW 305 MW summer | Petroleum Liquids Disillate Fuel Oil · ST | Aug 1966 Retirement: Jun 2029 | Operating |
| 4 | 414.7 MW 397 MW summer | Petroleum Liquids Disillate Fuel Oil · ST | Aug 1972 | |
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.
Drag organizations to explore the network. Select a node to pin its details and available page link.
Project milestones and public references behind the asset profile.
Historical records identify Wagner Unit 1 as a coal-fired unit built in 1956.
Baltimore Gas and Electric Company (BGE)
PJM
PJM · Anne Arundel County
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.
EIA-860 lists generator 1 with this operating date.
EIA-860 lists generator 2 with this operating date.
Wagner Unit 3 was completed or commissioned in 1966; it was originally coal-fired and later converted to fuel oil.
EIA-860 lists generator 3 with this operating date.
EIA-860 lists generator GT1 with this operating date.
Wagner Unit 4 was commissioned in 1972 as an oil-fired generation unit.
EIA-860 lists generator 4 with this operating date.
Talen Energy was established through the combination of PPL's competitive-generation assets with Riverstone's RJS Power business, which included the Raven Power facilities.
The 136 MW coal-fired Wagner Unit 2 was retired.
EIA-860 lists a planned retirement for generator 2.
Wagner notified PJM of its intent to retire Units 1, 3, 4, and the combustion turbine effective June 1, 2025.
Talen converted the coal-fired Wagner Unit 3 to run on fuel oil at the end of 2023.
EIA-860 lists a planned retirement for generator 1, generator GT1.
EIA-860 lists a planned retirement for generator 3, generator 4.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Herbert A Wagner has a reported capacity of 773.7 MW. Source: EIA Form 860.
Herbert A Wagner is a Petroleum Liquids facility in Anne Arundel County, MD, participating in the PJM market.
Herbert A Wagner is in Anne Arundel County, MD, inside the PJM balancing area.
Herbert A Wagner is operated by H.A. Wagner LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Herbert A Wagner reports a commercial operation date of 1956. Current status: operating. Source: EIA Form 860.
Herbert A Wagner reported 346.1 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.
Herbert A Wagner interconnects at Wagner Substation, on the Baltimore Gas and Electric Company (BGE) system.
By capacity, Herbert A Wagner ranks #3 of 705 operating plants of the same technology nationally. It ranks #1 of 12 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.
