How big is TalenEnergy Montour?

TalenEnergy Montour has a reported capacity of 1,757.9 MW. Source: EIA Form 860.

What kind of plant is TalenEnergy Montour?

TalenEnergy Montour is a Conventional Steam Coal, Natural Gas Steam Turbine facility in Montour County, PA, participating in the PJM market.

Where is TalenEnergy Montour located?

TalenEnergy Montour is in Montour County, PA, inside the PJM balancing area.

Who operates TalenEnergy Montour?

TalenEnergy Montour is operated by TalenEnergy Montour LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

When did TalenEnergy Montour start operating?

TalenEnergy Montour reports a commercial operation date of 1972. Current status: operating. Source: EIA Form 860.

How much electricity does TalenEnergy Montour generate?

TalenEnergy Montour reported 4,695.1 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.

How does TalenEnergy Montour compare to other plants?

By capacity, TalenEnergy Montour ranks #32 of 257 operating plants of the same technology nationally. It ranks #3 of 12 in PA.

TalenEnergy Montour — 1,758 MW gas plant, Montour County, PA

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TalenEnergy Montour — 1,758 MW gas plant, Montour County, PA · Ask the Grid

Overview

Reported capacity: 1,757.9 MW
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Technology: Conventional Steam Coal, Natural Gas Steam Turbine
Primary generation technology.
Registry anchor: Plant 3149
TalenEnergy Montour LLC · Montour County · PJM
Commercial operation: 1972
Best-supported operating milestone.

Profile

Grid role: Reliable, dispatchable natural-gas generation in PJM that provides electricity, capacity, and ancillary services and supports grid stabilization.
Context: Montour is a 1.5-GW-class PJM asset whose two generating units completed conversion from coal to natural gas in 2023; both units were subsequently fully operational on gas. The conversion contributed to Talen’s dispatchable lower-carbon generation fleet.
Physical build: Existing two-unit natural-gas-fired conventional steam station, with Units 1 and 2 commercially operating since 1972 and 1973. The documented installed scope includes two Combustion Engineering supercritical combined-circulation boilers; two GE tandem-compound steam-turbine generator trains; auxiliary boiler 11A supplied by Victory Energy and installed in 2013; original auxiliary boiler 11B supplied by Combustion Engineering; SCR systems on both existing units; two SCR reactors for Unit 2; and two booster fans per unit, or four total.

Structured profile

Reported capacity: 1,757.9 MW
Conventional Steam Coal, Natural Gas Steam Turbine
Commercial operation: 1972
Location: Montour County
PJM
Operator: TalenEnergy Montour LLC
Asset role: natural gas
PJM · Montour County

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Units and generators

Operating generator records and technology attributes reported through EIA-860.

Generator	Capacity	Technology	Operation	Status
1	864.9 MW 752 MW summer	Conventional Steam Coal Bituminous Coal · ST	Mar 1972	Operating
11	17.2 MW 11 MW summer	Conventional Steam Coal Refined Coal · ST	Apr 1973 Retirement: Feb 2019	Operating
2	893 MW 752 MW summer	Natural Gas Steam Turbine Natural Gas · ST	Apr 1973	Operating

Performance

Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.

Peer context

Technology capacity: 893 MW; Natural Gas Steam Turbine
National rank: #32; of 257 operating peers
PA rank: #3; of 12 operating peers

Monthly generation

Download CSV

Latest 12 months

4.7 TWh

Reported net generation

Latest report

Jun 2026

EIA-923 monthly filing

2025 capacity factor

30.6%

Using current reported nameplate capacity

Grid and market context

Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.

Nearby substations

HIFLD infrastructure inventory

MONTOUR STATION

IN SERVICE · 230 kV

0.3 km

TAP171863

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

CCR Basin Permits

Oct 2016

Ash Basin No. 1 regulated under Pennsylvania Residual Waste Permit 301315, Dam Safety Permit 47-009, and NPDES Permit PA0008443

Unlined CCR surface impoundment requiring continued groundwater monitoring. Post-closure documentation specifies monitoring requirements.

POST-CLOSURE PLAN MONTOUR ASH BASIN NO. 1 MONTOUR STEAM ELECTRIC STATION DERRY TOWNSHIP MONTOUR COUNTY, PENNSYLVANIA Prepared for: MONTOUR, LLC

Cooling Water Intake

Sep 2025

Submerged offshore Clean Water Intake Structure on West Branch Susquehanna River with maximum capacity of 36 MGD

Intake located at latitude 41°04'07" and longitude 76°51'18". River intake is facility's cooling-water source. Closed-loop cooling towers employed; Lake Chillisquaque is backup/storage water source.

** delete this section **

Emissions Controls

Mar 4, 2024

Existing air-emissions controls include low-NOx burners, separated overfire air, and selective catalytic reduction for NOx. Historical coal-unit controls include electrostatic precipitators, flue-gas desulfurization, and dry injection for particulate matter, SO2, and sulfuric-acid-mist control.

DEP materials identify control systems. Because the plant has converted to natural gas, retrieved documents do not establish which coal-specific controls remain routinely operated after conversion.

Source

Site Area

Jun 3, 2026

Montour property encompasses approximately 177 acres, including both Montour CT and Montour SES combined properties

The 2026 air-permit application for the proposed CCCT project states the property encompasses approximately 177 acres. This is not a separately stated acreage for the existing station alone but rather combined Montour CT and SES property.

Project Report Template

Waste Facility Area

Ash Landfill 3 covers approximately 51 acres

Lined Class II residual-waste landfill used primarily for fly ash, combustion wastes, and smaller quantities of plant residual wastes. Operated under Pennsylvania Residual Waste Permit 300987, issued August 2007.

CLOSURE PLAN

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

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AssetOwner / operator

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

1972
1972
Unit 1 placed in serviceTECHNICAL P...
Unit 1 at PPL Montour was placed in service and came online for commercial operation.
Mar 1972
Mar 1972
Generator enters operation

TalenEnergy Montour