Hay Road
New Castle County, Delaware · EIA plant ID 7153 · Operator: Calpine Mid-Atlantic Generation LLC
Nameplate1,098MWSummer 1,128 MW
Generators8in service
Net generation2,239GWh12 mo to Aug 2026
Capacity factor23%gas/coal/oil units, summer MW
Heat rate8,600Btu/kWhfossil units, electric fuel, HHV
First online1989Runs as peaking
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 1,146.5 | — | — |
| 2002 | 1,219.4 | — | — |
| 2003 | 1,637.7 | 17.6% | 8,244 |
| 2004 | 1,698.7 | 17.8% | 8,109 |
| 2005 | 1,673.5 | 17.6% | 8,341 |
| 2006 | 1,073.2 | 11.2% | 8,185 |
| 2007 | 1,576.9 | 16.5% | 8,120 |
| 2008 | 1,304.3 | 13.6% | 8,494 |
| 2009 | 1,300.5 | 13.4% | 8,431 |
| 2010 | 2,448.1 | 24.7% | 8,204 |
| 2011 | 3,915.6 | 39.6% | 8,202 |
| 2012 | 5,179.3 | 52.2% | 8,151 |
| 2013 | 4,491.2 | 45.1% | 8,221 |
| 2014 | 4,596.8 | 46.2% | 8,077 |
| 2015 | 4,236.9 | 42.6% | 8,008 |
| 2016 | 3,855.7 | 38.6% | 8,028 |
| 2017 | 3,531.8 | 35.5% | 8,152 |
| 2018 | 2,751.2 | 27.7% | 8,345 |
| 2019 | 1,473.9 | 14.8% | 8,321 |
| 2020 | 1,698.8 | 17.0% | 8,392 |
| 2021 | 1,208.7 | 12.2% | 8,668 |
| 2022 | 1,998.5 | 20.1% | 8,699 |
| 2023 | 1,957.1 | 19.8% | 8,573 |
| 2024 | 1,790.8 | 18.1% | 8,553 |
| 2025 | 2,178.9 | 22.1% | 8,491 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo1,286,724 MMBtu
Last month with liquid burnApr 2026
Switch while operatingYes
Net summer MW on gas1,130
Net summer MW on oil1,082
Time gas → oilup to 6 h (EIA 6H)
Time oil → gasup to 6 h (EIA 6H)
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| HR1 | Natural Gas Fired Combined Cycle | CT | 103.5 | 124 | Jul 1989 | Operating | — | coming soon |
| HR2 | Natural Gas Fired Combined Cycle | CT | 103.5 | 124 | May 1989 | Operating | — | coming soon |
| HR3 | Natural Gas Fired Combined Cycle | CT | 122 | 124 | May 1991 | Operating | — | coming soon |
| HR4 | Natural Gas Fired Combined Cycle | CA | 207 | 192 | May 1993 | Operating | — | coming soon |
| HR5 | Natural Gas Fired Combined Cycle | CT | 122.4 | 124 | Jun 2001 | Operating | — | coming soon |
| HR6 | Natural Gas Fired Combined Cycle | CT | 122.4 | 124 | Jul 2001 | Operating | — | coming soon |
| HR7 | Natural Gas Fired Combined Cycle | CT | 122.4 | 124 | Jul 2001 | Operating | — | coming soon |
| HR8 | Natural Gas Fired Combined Cycle | CA | 195 | 192 | Jul 2002 | Operating | — | coming soon |
Owner / operator
Operator: Calpine Mid-Atlantic Generation LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Calpine Mid-Atlantic Generation LLC | 100.0% | 1,098 MW |
Nearby plants
Within 80 km.
| Edge Moor | 710 MW | 0.6 km |
| DD Hay Road Solar 23 LLC | 1 MW | 0.9 km |
| Christiana | 55 MW | 3 km |
| WHA Southbridge Solar Park CSG | 1 MW | 4 km |
| South Campus Solar | 2 MW | 5.5 km |
| Chambers Cogeneration LP | retired | 5.9 km |