Herbert A Wagner
Oil power plant in Anne Arundel County, Maryland. 773.7 MW of nameplate capacity across 2 generators, operated by H.A. Wagner LLC.
Also known as Herbert A. Wagner Generating Station · EIA plant 1554
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 773.7 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- August 1966First generator online
- Operator
- H.A. Wagner LLCEIA operator ID 60422
- Grid
- PJMBalancing authority PJM
- Price nodes
- 4 PJM nodesResource nodes with prices
- Location
- Anne Arundel County, MD39.1781, −76.5268
- EIA plant ID
- 1554EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Herbert A Wagner produces
Free · EIA-923Net generation, 2025
186 GWh
186,445 MWh, final
Capacity factor, 2025
Not reported
2024: 2.5%
January to July 2026
345 GWh
Provisional
Range, 2015 to 2025
0.1–1.5
TWh a year. Low 2020, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 3,576,874 | Not reported | 12 of 12 |
| 2001 | 3,413,593 | Not reported | 12 of 12 |
| 2002 | 3,002,196 | Not reported | 12 of 12 |
| 2003 | 771,599 | Not reported | 2 of 12 |
| 2004 | 3,378,878 | Not reported | 12 of 12 |
| 2005 | 3,603,563 | Not reported | 12 of 12 |
| 2006 | 2,612,814 | Not reported | 12 of 12 |
| 2007 | 3,115,650 | Not reported | 12 of 12 |
| 2008 | 222,821 | Not reported | 1 of 12 |
| 2009 | 2,314,667 | Not reported | 12 of 12 |
| 2010 | 1,671,384 | 18.0% | 12 of 12 |
| 2011 | 1,566,686 | 16.9% | 12 of 12 |
| 2012 | 1,229,046 | 13.2% | 12 of 12 |
| 2013 | 1,518,965 | 16.4% | 12 of 12 |
| 2014 | 1,379,382 | 14.9% | 12 of 12 |
| 2015 | 1,458,491 | 15.7% | 12 of 12 |
| 2016 | 1,247,006 | Not reported | 12 of 12 |
| 2017 | 184,988 | 2.0% | 12 of 12 |
| 2018 | 488,292 | 5.3% | 12 of 12 |
| 2019 | 159,035 | 1.7% | 12 of 12 |
| 2020 | 80,506 | Not reported | 12 of 12 |
| 2021 | 122,788 | Not reported | 12 of 12 |
| 2022 | 113,205 | Not reported | 12 of 12 |
| 2023 | Not reported | Not reported | 0 of 12 |
| 2024 | 17,102 | 2.5% | 1 of 12 |
| 2025 | 186,445 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | 344,603 | 8.8% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · PJMEmissions
Free · EPA CAMPDCO₂, 2025
212,881
US short tons. 2024: 182,849
SO₂, 2025
316
US short tons
NOx, 2025
227
US short tons
CO₂ per MWh, calculated
1.14 t
About 2,284 lb per MWh
4 of 4 EPA units reported CO₂ in 2025 (1, 2, 3, 4), matched to EIA plant 1554 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
53,432
million gallons
Consumption, 2024
0
million gallons
Source
Patapsco River
Surface, Brackish. Once-through
Watershed stress
Very low/none · 0.119
USGS SUI, HUC12 Patapsco River-Frontal Chesapeake Bay
36 of 36 cooling months report withdrawal. Saline, brackish or ocean intake; not tested. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 3 | Petroleum Liquids | 359.0 | August 1966 |
| 4 | Petroleum Liquids | 414.7 | August 1972 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists H.A. Wagner LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
300 analyst questions a month, plus MCP
Query Herbert A Wagner and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Herbert A Wagner
Questions about Herbert A Wagner
How much power does Herbert A Wagner produce?
Herbert A Wagner reported 186,445 MWh (186 GWh) of net generation in 2025. From January to July 2026 it reported 345 GWh, which is provisional.
Where is Herbert A Wagner?
Herbert A Wagner is in Anne Arundel County, Maryland, at 39.1781, −76.5268. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Herbert A Wagner?
EIA-860M for August 2026 lists H.A. Wagner LLC as the operator (EIA operator ID 60422). The operator is not always the owner.
When did Herbert A Wagner start operating?
Its first generator began operating in August 1966, according to EIA-860M.
Does InfraMap have power prices for Herbert A Wagner?
Yes. InfraMap has PJM day-ahead and real-time prices at 4 price nodes linked to Herbert A Wagner, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- PJM day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page