ARMSTRONG

How ARMSTRONG compares

With 688 MW of capacity, ARMSTRONG ranks 19th among the 170 operating power plants Bywatts maps in Pennsylvania and 7th of the 28 operating Natural Gas plants in the state. It accounts for about 6.5% of Pennsylvania's operating Natural Gas capacity and 1.8% of all operating capacity in the state. Nationally it is the 201st-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 2002, it is newer than 54% of the 168 operating Pennsylvania plants with a recorded commissioning year. It shares Armstrong County with 5 other operating plants, including KEYSTONE and ALLEGHENY HYDRO NO 9.

EIA-860 lists 4 generators at the site with 688 MW of nameplate capacity, all natural gas fired combustion turbine technology. Net generation was 1,053 GWh in 2024 (a 17% capacity factor), down 20% from 2022.

Grid neighborhood

The nearest named substation is SOUTHBEND (500 kV), about 0.4 miles away; the closest transmission line found within 10 miles is a 500 kV line owned by WEST PENN POWER CO, under 0.1 miles away. Another 12 operating power plants totaling 5,087 MW sit within 25 miles; the largest is CONEMAUGH (1,884 MW, Coal). Within 50 miles are 2 mapped data centers; the nearest is Crown Castle Pittsburgh (Allegheny Center Mall) in Pittsburgh, about 36.7 miles away.

Computed by Bywatts from HIFLD power plant, substation and transmission line records, EIA-860/923 survey data and PeeringDB data center locations; distances are straight-line. Sources and methodology