17.8 MW Hydro operating in Armstrong, PA — PJM Interconnection, LLC
17.8 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1990
Operating Since
Coordinates
40.9560, -79.5504
County
Armstrong, PA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Allegheny Hydro LP | — | — |
| Owner(s) | Allegheny Hydro LP | — | — |
| Status | Operating | — | — |
Allegheny Hydro No 9 is a 17.8 MW hydroelectric power plant located in Armstrong County, Pennsylvania. The plant began operating in 1990 and utilizes conventional hydroelectric technology. It has two generators and is owned and operated by Allegheny Hydro LP. The plant's primary fuel source is water (WAT).
In the most recent year of reported data, Allegheny Hydro No 9 generated 88,164 MWh of electricity, achieving a capacity factor of 55.8%. The plant operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region. It is ranked as the 13th largest hydroelectric plant out of 28 in Pennsylvania, and 516th out of 1464 nationally.
Generated from EIA, GEM, and public data sources
NERC Region
RFC
Balancing Authority
PJM Interconnection, LLC
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
11.1K MWh
Latest Month
88.2K MWh
Annual Generation
55.8%
Capacity Factor
No financial data available for this plant.
Market Position
ISO/RTO Market
PJM
LMP Node
—
Pricing Hub
WESTERN HUB
Node Source
OSM spatial match
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Last updated 2026-03-14
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