Lower Mount Bethel Energy is a natural gas-fired power facility with 651.6 MW of EIA-reported nameplate capacity in Northampton County, Pennsylvania, registered as EIA Plant ID 55667. Lower Mount Bethel Energy LLC is the registered plant entity or operator. The plant's generating configuration is natural-gas-fired combined-cycle plant with two combustion turbines and one steam turbine.
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Primary generation technology.
Lower Mount Bethel Energy LLC · Northampton County · PJM
Lower Mount Bethel Energy is currently operating; a closure or retirement is listed for August 2, 2026.
On October 30, 2018, Talen Energy Supply, LLC announced that its wholly owned project subsidiary, LMBE-MC HoldCo II LLC, had commenced a $450 million senior secured seven-year Project Term Loan B Facility.
Natural Gas Fired Combined Cycle
Lower Mount Bethel Energy is currently operating; a closure or retirement is listed for August 2, 2026.
Lower Mount Bethel Energy is currently operating; a closure or retirement is listed for August 2, 2026.
PJM
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| G1 | 211.5 MW 195.3 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | May 2004 | Operating |
| G2 | 211.5 MW 191.3 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | May 2004 | Operating |
| G3 | 228.6 MW 215 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | May 2004 | Operating |
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 G1, generator G2, generator G3 with this operating date.
PJM · Northampton County
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
PPL completed the spinoff of its competitive energy business, which was immediately combined with Riverstone Holdings’ generation assets to form Talen Energy. PPL stated that its former Pennsylvania power plants were then part of Talen Energy. This was a corporate spinoff and combination, not a disclosed standalone sale of the plant.
A Pennsylvania DEP filing for LMBE Project Company, LLC documented a Title V significant modification and RACT III NOx averaging plan for the existing combined-cycle units; the filing did not describe a repowering or capacity expansion.
Available plant records continue to identify Lower Mount Bethel Energy as an operating natural gas-fired facility; no retirement or repowering event was identified.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Lower Mount Bethel Energy has a reported capacity of 651.6 MW. Source: EIA Form 860.
Lower Mount Bethel Energy is a Natural Gas Fired Combined Cycle facility in Northampton County, PA, participating in the PJM market.
Lower Mount Bethel Energy is in Northampton County, PA, inside the PJM balancing area.
Lower Mount Bethel Energy is operated by Lower Mount Bethel Energy LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Lower Mount Bethel Energy reported 4,446.2 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.
By capacity, Lower Mount Bethel Energy ranks #209 of 538 operating plants of the same technology nationally. It ranks #18 of 26 in PA.
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.
