Mountaineer (6264_1)

Mountaineer is a 1,300.0 MW other interconnection project in Mason, West Virginia with a current status of operational.

1,300.0 MWCapacity
OperationalStatus
PJMMarket
OtherTechnology

Project facts

Canonical nameMountaineer
Queue ID6264_1
Statusoperational
Source status(OP) Operating
MarketPJM
TechnologyOther
Capacity1,300.0 MW
StateWest Virginia
CountyMason
Point of interconnection—
Requested (queue) date—
Proposed in-service date—
Operational date1980-09-01
Withdrawn date—
Developer—
Utility / transmission ownerAppalachian Power Co

What changed

ObservedFieldOld valueNew valueMateriality
2026-08-02new_project—operationalhigh

Explore related data

Source last checked2026-10-02
Data last materially changed2026-10-02
Page data generated2026-10-12

Provenance: U.S. EIA — Form EIA-860M generator inventory (operating + planned). Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.

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