Hay Road has a reported capacity of 1,098.2 MW. Source: EIA Form 860.

What kind of plant is Hay Road?

Hay Road is a Natural Gas Fired Combined Cycle facility in New Castle County, DE, participating in the PJM market.

Where is Hay Road located?

Hay Road is in New Castle County, DE, inside the PJM balancing area.

Who operates Hay Road?

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.

How much electricity does Hay Road generate?

Hay Road reported 2,360.8 GWh over the twelve months to 2026-04. Figures are net generation as filed to EIA-923.

How does Hay Road compare to other plants?

By capacity, Hay Road ranks #80 of 538 operating plants of the same technology nationally. It ranks #1 of 3 in DE.

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Natural Gas Fired Combined CyclePJM · New Castle County

Hay Road

Calpine Mid-Atlantic Generation LLC · New Castle County · PJM

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.

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Overview

Key fields

Reported capacity: 1,098.2 MW
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Technology: Natural Gas Fired Combined Cycle
Primary generation technology.
Registry anchor: Plant 7153
Calpine Mid-Atlantic Generation LLC · New Castle County · PJM
Operating status

Asset analyst

plant:plant-7153

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Investigate technology, capacity, output, price behavior, ownership, and related facilities using this profile plus current grid data.

Units and generators

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	122.4 MW 124 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Jun 2001	Operating
HR6	122.4 MW 124 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Jul 2001	Operating
HR7	122.4 MW 124 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Jul 2001	Operating
HR8	195 MW 192 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CA	Jul 2002	Operating

Commercial, land, and environmental record

Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.

Land and environmental record

Emissions Controls

Jun 14, 2019

Units 1, 2, 3: low-NOx burners, water injection, dry low-NOx combustion on natural gas, water injection on secondary fuel

Delaware Regional Haze appendix states Hay Road Units 1–3 primarily burn natural gas with low-sulfur light petroleum product as secondary fuel. Units use dry low-NOx combustion in natural-gas premix mode and water injection in diffusion mode or when firing secondary fuel.

Source

Emissions Controls

Jun 14, 2019

Units 5, 6, 7: low-NOx burners, water injection, and selective catalytic reduction

Regional Haze record identifies Hay Road Units 5–7 as combustion turbines using low-NOx burners, water injection, and selective catalytic reduction. Natural gas is primary fuel; low-sulfur light petroleum product is secondary fuel.

Source

Environmental Compliance

Jan 31, 2017

Hazardous-waste-generator facility status; compliance reports documented

DNREC facility record identifies Calpine Hay Road Energy Center as hazardous-waste-generator facility with compliance-and-permit records, including internal compliance reports dated in 2017.

Facility Detail

Environmental Release And Remediation

Feb 17, 2026

Low-sulfur diesel fuel release; less than 15,000 gallons; remediation complete

Delaware release-notification system records February 17, 2026 intermittent release of low-sulfur diesel fuel at Calpine Power, 198 Hay Road. Small unknown amount entered facility retention pond. Proper remediation and cleanup conducted.

Source

NPDES Wastewater Permit

2001

DE000558

DRBC records identify NPDES Permit No. DE000558 for combined Edge Moor/Hay Road project discharges. Sources disagree on exact 2001 issuance date (May 7 vs. June 1, 2001); permit dated to 2001 here.

Source

Related parties and identifiers

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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AssetOwner / operator

Parties and identifiers

OrganizationRoleBasis

Calpine Mid-Atlantic Generation LLCOperatorOperator associated with Hay Road.

plant:plant-7153Grid selectionCanonical asset page /assets/facilities/hay-road.

Reporting portfolio

EIA reporting entity

Calpine Mid-Atlantic Generation LLC

Entity 56609

Operating portfolio

2 plants

1 states

Reported capacity

1,796 MW

Natural Gas Fired Combined Cycle · Natural Gas Steam Turbine

Largest reported plants in this portfolio
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.

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Hay Road

Overview

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Hay Road

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Units and generators

Performance

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Monthly generation

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Nearby substations

Commercial, land, and environmental record

Land and environmental record

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Project timeline

Sources

Common questions about Hay Road

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What kind of plant is Hay Road?

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How much electricity does Hay Road generate?

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Co-located assets

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