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- Combustion
- Wind & solar
- Under construction
- Operating
- 10 · 100 · 1,000 MW
Map
- Combustion
- Wind & solar
- Under construction
- Operating
Key: location and 7 exact-grade projects within 25 km. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Power plant · Gas, combined cycle
Key facts
Power plant · Gas, combined cycleran 60% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 2018
- Net generation, 2025
- 4,370,590 MWh
- Grid
- 525 kV to Potomac Electric Power Co (PJM)
- Location
- Prince Georges County, Maryland
- Operated by
- Parkway Generation Keys Energy Center LLC
Output
- Gas
Details
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- Technology
- Gas, combined cycle source: “Natural Gas Fired Combined Cycle”
- Age
- 8 years since 2018
- Unused energy
- 2,905 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
- 7,198 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 | 31,457,347 |
| Capacity factor, 2025 | 0.601 |
| Heat rate (Btu/kWh), 2025 | 7,197.5 |
| Net generation (MWh), 2025 | 4,370,590 |
| Balancing authority code | PJM |
Ownership
2 companies2| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| Parkway Generation Keys Energy Center LLC | Operator | EIA-860M | ||
| ARCLIGHT ENERGY PARTNERS FUND VII LP | Owner | 100.0% | 31 Dec 2023 | EPA GHGRP |
Timeline
- In service · EIA-860M
Sources
4 sourcesSources EIA-860M · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Sources
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EIA Open Data bulk file — Electricity (ELEC.zip; monthly plant net generation and fuel consumption since 2001)Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Around this plant
Nearby
within 25 km| Project | Kind | Away | MW |
|---|---|---|---|
| Mattawoman Energy Center Postponed | Gas, combined cycle | 1.3 km | 1,008 |
| NCBP TEN, LLC Under construction | Solar | 20.6 km | 1.4 |
| NCBP ONE, LLC Under construction | Solar | 20.8 km | 2.5 |
| NCBP Seven Under construction | Solar | 20.9 km | 2.4 |
| Madison Solar 1 LLC Postponed | Solar | 21.1 km | 1.2 |
| NCBP TWELVE, LLC Under construction | Solar | 21.2 km | 1.2 |
| MDD109-NCBP BLDG 11-Manekin Under construction | Solar | 21.4 km | 2.4 |