Ironwood LLC is a natural gas-fired power facility with 777.6 MW of EIA-reported nameplate capacity in Lebanon County, Pennsylvania, registered as EIA Plant ID 55337. The facility interconnects at South Lebanon at 230 kV.
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Primary generation technology.
Lebanon County · PJM
Ironwood LLC is operating.
230 kV · Metropolitan Edison Co
Natural Gas Fired Combined Cycle
Ironwood LLC is operating.
230 kV · Metropolitan Edison Co
PJM
PJM · Lebanon County
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| CT1 | 259.2 MW 261.6 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Dec 2001 | Operating |
| CT2 | 259.2 MW 261.6 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Dec 2001 | Operating |
| ST4 | 259.2 MW 236.8 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | Dec 2001 | 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.
AES Ironwood, L. L. C. was formed to develop, construct, own, operate, and maintain the Lebanon County generating facility.
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.
EIA-860 lists generator CT1, generator CT2, generator ST4 with this operating date.
AES Ironwood commenced commercial operations and the facility became commercially available under its power purchase agreement with Williams Energy.
TransCanada completed acquisition of Ironwood natural-gas CCGT plant in Lebanon, Pennsylvania for $653 million cash after post-acquisition adjustments. 778 MW capacity, delivers energy into PJM.
TransCanada completed the sale of its Northeast merchant generation assets to Helix Generation, an LS Power affiliate. The portfolio included Ironwood, and the transaction was approximately $2.1 billion for four facilities.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Ironwood LLC has a reported capacity of 777.6 MW. Source: EIA Form 860.
Ironwood LLC is a Natural Gas Fired Combined Cycle facility in Lebanon County, PA, participating in the PJM market.
Ironwood LLC is in Lebanon County, PA, inside the PJM balancing area.
Ironwood LLC is operated by Helix Ironwood LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Ironwood LLC reported 4,045 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.
Ironwood LLC interconnects at South Lebanon, on the Metropolitan Edison Co system.
By capacity, Ironwood LLC ranks #151 of 538 operating plants of the same technology nationally. It ranks #14 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.
