Hay Road
Natural gas power plant · New Castle County, Delaware
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Calpine Mid-Atlantic Generation LLC
- County
- New Castle County
- Generating units
- 8
- Share of state capacity
- 36.31%
- Rank among natural gas plants in Delaware
- #1 of 10
- EIA plant code
- 7153
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| HR4 | Natural Gas Fired Combined Cycle | 207 MW | 192 MW | 1993 | Operating |
| HR8 | Natural Gas Fired Combined Cycle | 195 MW | 192 MW | 2002 | Operating |
| HR5 | Natural Gas Fired Combined Cycle | 122 MW | 124 MW | 2001 | Operating |
| HR6 | Natural Gas Fired Combined Cycle | 122 MW | 124 MW | 2001 | Operating |
| HR7 | Natural Gas Fired Combined Cycle | 122 MW | 124 MW | 2001 | Operating |
| HR3 | Natural Gas Fired Combined Cycle | 122 MW | 124 MW | 1991 | Operating |
| HR1 | Natural Gas Fired Combined Cycle | 104 MW | 124 MW | 1989 | Operating |
| HR2 | Natural Gas Fired Combined Cycle | 104 MW | 124 MW | 1989 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Delaware
| Edge Moor | Natural gas | 710 MW |
| Garrison Energy Center LLC | Natural gas | 361 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 1,098 MW solar plant and a 1,098 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Delaware power plants · What Delaware actually generates