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- Combustion
- Operating
- 10 · 100 · 1,000 MW
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- Combustion
- Operating
Vienna Operations: location and 1 exact-grade project within 15 mi. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Vienna Operations
Power plant · Oil
Key facts
Power plant · Oilran 1% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1968
- Net generation, 2025
- 13,191 MWh
- Grid
- 138 kV, 69 kV to Delmarva Power (PJM)
- Location
- Dorchester County, Maryland
- Operated by
- NRG Vienna Operations Inc
Output
- Oil
Details
Who’s behind it
- Owner
- Vienna Power LLC
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- Technology
- Oil source: “Petroleum Liquids”
- Age
- 58 years since 1968
- Unused energy
- 1,569 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
- Heat rate
- 16,445 Btu/kWh 2025
All 7 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| Grid |
|
| EPA greenhouse gas reporting (GHGRP) |
|
| Fuel burned (MMBtu), 2025 | 216,921 |
| Capacity factor, 2025 | 0.008 |
| Heat rate (Btu/kWh), 2025 | 16,444.6 |
| Net generation (MWh), 2025 | 13,191 |
| Balancing authority code | PJM |
Ownership
2 companies2| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| NRG Vienna Operations Inc | Operator | EIA-860M | ||
| Vienna Power LLC | Owner | 100.0% | Dec 31, 2025 | EIA-860 |
Timeline
- In service · EIA-860M
Sources
4 sourcesSources EIA-860M · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EIA-860 Annual Electric Generator Report — Schedule 4 Owner (ownership shares per generator), plus Plant/Generator schedules
Sources
- EIA-860M
- EIASource: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EIA-860 Annual Electric Generator Report — Schedule 4 Owner (ownership shares per generator), plus Plant/Generator schedules
Around this plant
Nearby
within 15 mi| Project | Kind | Away | MW |
|---|---|---|---|
| Porter Mill Solar Postponed | Solar | 8.0 mi | 46 |
Sources EIA-860M