5th largest plant in Maryland · 357th nationally
Herbert A Wagner is a oil power plant in Maryland with a nameplate capacity of 923 MW. It generates roughly 68.1k MWh per year — enough to power about 6,488 average U.S. homes.
Its capacity factor of 1% reflects intermittent or peaking operation. At 3502 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (923 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Herbert A Wagner |
|---|---|
| Operator | H.a. Wagner Llc |
| City | Baltimore |
| County | Anne Arundel County |
| State | Maryland |
| ZIP | 21226 |
| Coordinates | 39.17810, -76.52680 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 4 | Petroleum Liquids | Distillate Oil | 415 MW | Operating | 1972 |
| 3 | Petroleum Liquids | Distillate Oil | 359 MW | Operating | 1966 |
| 2 | Conventional Steam Coal | RC | 136 MW | Retired | 1959 |
| 1 | Petroleum Liquids | Distillate Oil | 133 MW | Operating | 1956 |
| GT1 | Petroleum Liquids | Distillate Oil | 16.0 MW | Operating | 1967 |
| CO₂ | 119.3k metric tons |
|---|---|
| SO₂ | 333 metric tons |
| NOₓ | 88 metric tons |
| CO₂ Rate | 3502 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | RFC |
|---|---|
| Balancing Authority | Pjm Interconnection, Llc |
Oil-fired plants typically run only during peak demand or grid emergencies because oil is expensive compared to gas and coal. They have the highest CO₂ emissions per MWh of any common generation technology.