Hay Road is a natural gas-fired power facility with 1,098.2 MW of EIA-reported nameplate capacity in New Castle County, Delaware, registered as EIA Plant ID 7153. Calpine Mid-Atlantic Generation LLC owns and operates the plant, a subsidiary of Constellation Energy Corporation. The plant's generating configuration is eight natural-gas-fired combined-cycle generators and plant records identify CC1 and CC2 unit codes.
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Primary generation technology.
Calpine Mid-Atlantic Generation LLC · New Castle County · PJM
Hay Road is operating.
Natural Gas Fired Combined Cycle
Hay Road is operating.
PJM
PJM · New Castle County
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| HR1 | 103.5 MW 124 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Jul 1989 | Operating |
| HR2 | 103.5 MW 124 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | May 1989 | Operating |
| HR3 | 122 MW 124 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | May 1991 | Operating |
| HR4 | 207 MW 192 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | May 1993 | Operating |
| HR5 | ||||
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
EIA-860 lists generator HR2 with this operating date.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| Hay RoadCurrent | 1,098.2 MW | DE | |
| Edge Moor | 697.8 MW | DE |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioEIA-860 lists generator HR1 with this operating date.
EIA-860 lists generator HR3 with this operating date.
EIA-860 lists generator HR4 with this operating date.
The first combustion turbine in the expansion, described as producing 116 MW, began commercial operation in early June 2001. FERC records also list HR5 as entering service in June 2001.
EIA-860 lists generator HR6, generator HR7 with this operating date.
A Federal Register filing stated that Hay Road 6 and Hay Road 7 were operational, while Hay Road 5 and Hay Road 8 were under construction; the four units were expected to total 550 MW when complete.
EIA-860 lists generator HR8 with this operating date.
Constellation completed its acquisition of Calpine, thereby becoming the parent company associated with the Hay Road portfolio.
Constellation announced an agreement to sell a PJM generation portfolio including Hay Road to LS Power. The portfolio transaction was valued at $5 billion before closing adjustments and was expected to close later in 2026, subject to regulatory approvals.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Hay Road has a reported capacity of 1,098.2 MW. Source: EIA Form 860.
Hay Road is a Natural Gas Fired Combined Cycle facility in New Castle County, DE, participating in the PJM market.
Hay Road is in New Castle County, DE, inside the PJM balancing area.
Hay Road is operated by Calpine Mid-Atlantic Generation LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Hay Road reported 2,407.8 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.
By capacity, Hay Road ranks #80 of 538 operating plants of the same technology nationally. It ranks #1 of 3 in DE.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.
