Hay Road reports 1,098.2 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.

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 2,241.9 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.

How does Hay Road compare to other plants?

By capacity, Hay Road ranks #81 of 540 operating plants of the same technology nationally. It ranks #1 of 3 in DE.

Hay Road — 1,098 MW gas plant, New Castle County, DE

Ask the Grid

Create free workspace

Ask the Grid

Create free workspace

Hay Road — 1,098 MW gas plant, New Castle County, DE · Ask the Grid

Generation and physical site

EIA plant 7153 · Inventory for Sep 2026.

Reported operating nameplate by technology

Natural gas: 1,098.2 MW

Operating generators only. Battery power is in MW; stored energy is in MWh. These ratings do not establish a shared export limit.

Generator records (8)

EIA generator status and nameplate capacity for Hay Road
Generator	Technology	Status	Power (MW)	Energy (MWh)
HR1	Natural Gas Fired Combined Cycle	Operating	103.5	Unknown
HR2	Natural Gas Fired Combined Cycle	Operating	103.5	Unknown
HR3	Natural Gas Fired Combined Cycle	Operating	122	Unknown
HR4	Natural Gas Fired Combined Cycle	Operating	207	Unknown
HR5	Natural Gas Fired Combined Cycle	Operating	122.4	Unknown
HR6	Natural Gas Fired Combined Cycle	Operating	122.4	Unknown
HR7	Natural Gas Fired Combined Cycle	Operating	122.4	Unknown
HR8	Natural Gas Fired Combined Cycle	Operating	195	Unknown

Physical map location · OpenStreetMap: 39.74520, -75.50519
Filed location · EIA: 39.74360, -75.50720

Sources and observation dates

Inventory source: EIA-860M workbook (preliminary)
EIA reporting month: Sep 2026
EIA retrieved: Oct 24, 2026
OSM extract: Oct 9, 2026
OSM last mapped edit: Mar 26, 2025
Map prepared: Oct 24, 2026
Field verification: Not reported

Reporting month describes the inventory. Retrieval and map preparation describe processing; an OSM edit does not establish an in-service date.

EIA source inventory

Units and generators

Current 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 CT	Jul 1989	Operating
HR2	103.5 MW 124 MW summer	Natural Gas Fired Combined Cycle CT	May 1989	Operating
HR3	122 MW 124 MW summer	Natural Gas Fired Combined Cycle CT	May 1991	Operating
HR4	207 MW 192 MW summer	Natural Gas Fired Combined Cycle CA	May 1993	Operating
HR5	122.4 MW 124 MW summer	Natural Gas Fired Combined Cycle CT	Jun 2001	Operating
HR6	122.4 MW 124 MW summer	Natural Gas Fired Combined Cycle CT	Jul 2001	Operating
HR7	122.4 MW 124 MW summer	Natural Gas Fired Combined Cycle CT	Jul 2001	Operating
HR8	195 MW 192 MW summer	Natural Gas Fired Combined Cycle 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

Mapped facility footprint

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.

Relationship graph

Drag organizations to explore the network. Select a node to pin its details and available page link.

AssetOwner / operatorRelated asset

Parties and identifiers

OrganizationRoleBasis

Calpine Mid-Atlantic Generation LLCOperatorOperator associated with 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.

View full reporting portfolio

Overview

Overview

Explore related directories

Infrastructure record

Profile

Structured profile

Generation and physical site

Reported operating nameplate by technology

Related assets

Wildcat Point Generation Facility

Marcus Hook Energy LP

Eddystone Generating Station

Bethlehem Power Plant

Edge Moor

Moxie Freedom Generation Plant

Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Market registration

Nearby substations

Commercial, land, and environmental record

Land and environmental record

Related parties and identifiers

Relationship graph

Parties and identifiers

Reporting portfolio

Timeline and sources

Project timeline

Sources

Common questions about Hay Road

How big is Hay Road?

What kind of plant is Hay Road?

Where is Hay Road located?

Who operates Hay Road?

How much electricity does Hay Road generate?

How does Hay Road compare to other plants?

Co-located assets

Explore related directories