How big is Hamilton Liberty?

Hamilton Liberty has a reported capacity of 870 MW. Source: EIA Form 860.

What kind of plant is Hamilton Liberty?

Hamilton Liberty is a Natural Gas Fired Combined Cycle facility in Bradford County, PA, participating in the PJM market.

Where is Hamilton Liberty located?

Hamilton Liberty is in Bradford County, PA, inside the PJM balancing area.

Who operates Hamilton Liberty?

Hamilton Liberty is operated by Hamilton Liberty O&M LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Hamilton Liberty generate?

Hamilton Liberty reported 4,886.8 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.

How does Hamilton Liberty compare to other plants?

By capacity, Hamilton Liberty ranks #124 of 538 operating plants of the same technology nationally. It ranks #10 of 26 in PA.

Hamilton Liberty — 870 MW gas plant, Bradford County, PA

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Hamilton Liberty — 870 MW gas plant, Bradford County, PA · Ask the Grid

Overview

Reported capacity: 870 MW
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Technology: Natural Gas Fired Combined Cycle
Primary generation technology.
Registry anchor: Plant 58420
Hamilton Liberty O&M LLC · Bradford County · PJM
Operating status: Operating
Hamilton Liberty is currently operating; a closure or retirement is listed for 2026.

Profile

Operating status: Hamilton Liberty is currently operating; a closure or retirement is listed for 2026.
Grid role: Baseload capacity in PJM
Context: WSP describes Liberty as the first power plant developed in the Marcellus Shale gas field and says its Siemens single-shaft H-class technology was the first of its kind in the United States.
Physical build: Natural-gas-fired combined-cycle facility comprising two single-shaft power trains. Installed equipment includes 2 Siemens SGT6-8000H gas turbines, 2 Siemens SST6-5000 steam turbines, 2 Siemens SGen6-2000H hydrogen-cooled generators, 2 Vogt Smart-Box heat-recovery steam generators, and air-cooled condensers. The physical build also included ancillary systems and buildings, electrical interconnection facilities, and natural-gas, water, and wastewater tie-ins.

Structured profile

Reported capacity: 870 MW
Natural Gas Fired Combined Cycle
Operating status: operating
Hamilton Liberty is currently operating; a closure or retirement is listed for 2026.
Retirement: 2026
Hamilton Liberty is currently operating; a closure or retirement is listed for 2026.
Location: Bradford County
PJM
Operator: Hamilton Liberty O&M LLC

Related assets

Similar plants ranked by technology, capacity, and distance.

Hamilton Patriot Generation Plant

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Compare with this plant

Moxie Freedom Generation Plant

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Units and generators

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

Generator	Capacity	Technology	Operation	Status
GEN1	435 MW 415 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CS	Jun 2016	Operating
GEN2	435 MW 415 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CS	Jul 2016	Operating

Performance

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

Peer context

Technology capacity: 870 MW; Natural Gas Fired Combined Cycle
National rank: #124; of 538 operating peers
PA rank: #10; of 26 operating peers

Monthly generation

Download CSV

Latest 12 months

4.89 TWh

Reported net generation

Latest report

Jun 2026

EIA-923 monthly filing

2025 capacity factor

68.2%

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

UNKNOWN144122

IN SERVICE · 230 kV

0.2 km

UNKNOWN144123

Commercial, land, and environmental record

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

Transactions and agreements

Substantial Completion Milestone

Apr 30, 2016

Panda Liberty achieved substantial completion April 30, 2016. Gemma Power Systems and The Lane Construction Corporation joint venture delivered the Liberty combined-cycle plant to the owner for commercial operation.

870 MW contracted3 yearsGemma Power Systems, LLC · The Lane Construction Corporation

Gemma Power Systems Completes Two Major Pennsylvania Power Projects

Land and environmental record

Air Permit

Oct 16, 2023

PA DEP Title V Permit 08-00045; DEP Authorization ID 1414543; DEP PF ID 745923

Pennsylvania DEP issued Title V/State Operating Permit for Hamilton Liberty LLC at 151 Liberty Lane, Towanda.

1414543[08-00045]_Issued_v1.pdf

Permit Validity

Oct 16, 2023

Title V permit effective October 16, 2023 and expiring October 15, 2028

Pennsylvania DEP Title V permit issued October 16, 2023 with expiration date of October 15, 2028.

1414543[08-00045]_Issued_v1.pdf

Water Authorization

Nov 18, 2020

SRBC Consumptive Water Use Approval by Rule ABR-201301007; reissued to Hamilton Liberty effective November 18, 2020

Susquehanna River Basin Commission reissued consumptive water use approval to Hamilton Liberty LLC after name change from Panda Liberty LLC, effective November 18, 2020. Original approval authorizes consumptive water use through January 18, 2028.

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.

Relationship graph

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AssetOwner / operatorContractorFinancier

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Apr 1, 2013
Apr 1, 2013
Construction limited notice to proceedSource
Gemma Power Systems received limited notice to proceed for the Panda Liberty project.
Aug 21, 2013
Aug 21, 2013
Construction full notice to proceed

Hamilton Liberty