Hay Road
Hay Road is a natural gas plant in New Castle County, Delaware, operated by Calpine Mid-Atlantic Generation LLC. No other power plant in Delaware has more nameplate capacity; the state has 38 in all. Its biggest unit, rated at 207 MW, is the third-largest single generator in Delaware. Eight units here can switch between natural gas and oil.
Nameplate capacity, 2025
1,098 MW
1,128 MW net summer capacity
8 operable units
- Gas combined cycle1,098 MW100%
Unit by unit, 1989 to 2025
operating in 2025bar height follows unit size
Unit HR1 Gas combined cycle, 104 MW, 1989
Unit HR2 Gas combined cycle, 104 MW, 1989
Unit HR3 Gas combined cycle, 122 MW, 1991
Unit HR4 Gas combined cycle, 207 MW, 1993
Unit HR5 Gas combined cycle, 122 MW, 2001
Unit HR6 Gas combined cycle, 122 MW, 2001
Unit HR7 Gas combined cycle, 122 MW, 2001
Unit HR8 Gas combined cycle, 195 MW, 2002
Among Delaware’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Hay Roadthis plant
- 2Edge Moor710 MW
- 3Garrison Energy Center LLC361 MW
Other rankings
- All US power plants
- 271st of 14,286
- US natural gas plants
- 129th of 1,961
- Natural gas plants in Delaware
- 1st of 10
- Plants in the PJM Interconnection balancing area
- 66th of 2,049
- Plants run by Calpine Mid-Atlantic Generation LLC
- 1st of 8
Operable units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| HR2 | Gas combined cycle | 104 MW | 124 MW | 1989 | Operating |
| HR1 | Gas combined cycle | 104 MW | 124 MW | 1989 | Operating |
| HR3 | Gas combined cycle | 122 MW | 124 MW | 1991 | Operating |
| HR4 | Gas combined cycle | 207 MW | 192 MW | 1993 | Operating |
| HR5 | Gas combined cycle | 122 MW | 124 MW | 2001 | Operating |
| HR6 | Gas combined cycle | 122 MW | 124 MW | 2001 | Operating |
| HR7 | Gas combined cycle | 122 MW | 124 MW | 2001 | Operating |
| HR8 | Gas combined cycle | 195 MW | 192 MW | 2002 | Operating |
Grid and site
- Balancing area
- PJM Interconnection
- Reliability region
- ReliabilityFirst
- Highest grid connection voltage
- 230 kV
- Water source
- Delaware River
- Nearest town on record
- Wilmington
- Operator type
- Independent producer
- Coordinates
- 39.744°N, 75.507°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| Edge Moor | Natural gas | 710 MW | 0.4 mi southeast |
| DD Hay Road Solar 23 LLC | Solar | 1.2 MW | 0.5 mi southwest |
| Christiana | Oil and petroleum | 55 MW | 1.8 mi southwest |
| WHA Southbridge Solar Park CSG | Solar | 1.4 MW | 2.5 mi southwest |
| South Campus Solar | Solar | 1.8 MW | 3.4 mi northwest |
| Croda Atlas Point CHP | Biomass and waste | 4.2 MW | 4.0 mi southwest |
| AGT001 Centerville Fuel Cell | Natural gas | 1.3 MW | 6.2 mi west |
| Marcus Hook Energy LP | Natural gas | 836 MW | 6.3 mi northeast |