Herbert A WagnerRetirement planned
Anne Arundel County, Maryland · EIA plant ID 1554 · Operator: H.A. Wagner LLC
×285 MW coal retired since 2020 (latest Jun 2025)
Nameplate774MWSummer 702 MW
Generators2in service
Net generation372GWh12 mo to Aug 2026
Capacity factor6%gas/coal/oil units, summer MW
Heat rate13,022Btu/kWhfossil units, electric fuel, HHV
First online1966Runs as rarely runs
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 3,413.6 | — | — |
| 2002 | 3,002.2 | — | — |
| 2003 | 3,392.9 | 38.2% | 9,902 |
| 2004 | 3,378.9 | 38.3% | 10,715 |
| 2005 | 3,603.6 | 41.0% | 10,477 |
| 2006 | 2,612.8 | 29.8% | 10,539 |
| 2007 | 3,115.7 | 36.9% | 10,628 |
| 2008 | 2,163.8 | 24.7% | 11,241 |
| 2009 | 2,314.7 | 27.1% | 10,810 |
| 2010 | 1,671.4 | 19.6% | 10,866 |
| 2011 | 1,566.7 | 18.3% | 10,723 |
| 2012 | 1,229 | 14.3% | 10,792 |
| 2013 | 1,519 | 17.8% | 10,416 |
| 2014 | 1,379.4 | 16.1% | 10,347 |
| 2015 | 1,458.5 | 17.4% | 10,768 |
| 2016 | 1,247 | 14.8% | 10,579 |
| 2017 | 185 | 2.2% | 14,644 |
| 2018 | 488.3 | 5.8% | 12,289 |
| 2019 | 159 | 1.9% | 15,548 |
| 2020 | 80.5 | 1.0% | 16,788 |
| 2021 | 122.8 | 1.7% | 15,045 |
| 2022 | 113.2 | 1.5% | 14,705 |
| 2023 | 68.1 | 0.9% | 17,376 |
| 2024 | 158.7 | 2.1% | 13,891 |
| 2025 | 186.4 | 2.8% | 14,171 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 3 | Petroleum Liquids | ST | 359 | 305 | Aug 1966 | Operating · retirement planned | Jun 2029 | coming soon |
| 4 | Petroleum Liquids | ST | 414.7 | 397 | Aug 1972 | Operating · retirement planned | Jun 2029 | coming soon |
| 1 | Petroleum Liquids | ST | 132.8 | 126 | Feb 1956 | Retired Jun 2025 | — | coming soon |
| 2 | Conventional Steam Coal | ST | 136 | 118 | Jan 1959 | Retired Jun 2020 | — | coming soon |
| GT1 | Petroleum Liquids | GT | 16 | 12.9 | Aug 1967 | Retired Jun 2025 | — | coming soon |
Owner / operator
Operator: H.A. Wagner LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| H.A. Wagner LLC | 100.0% | 774 MW |
Nearby plants
Within 80 km.
| Brandon Shores | 1,370 MW | 2.6 km |
| Marley Neck 4 - SLBAL006 | — | 2.8 km |
| Marley Neck 3 - SLBAL005 | — | 2.8 km |
| White CSG | 2 MW | 5 km |
| Anne Arundel County Public Schools | 1 MW | 5.2 km |
| THD Baltimore DCs - 5829 Project Lion | 4 MW | 6.2 km |