FIRSTENERGY ALLEGHENY ENERGY UNITS 1 & 2

How FIRSTENERGY ALLEGHENY ENERGY UNITS 1 & 2 compares

With 88 MW of capacity, FIRSTENERGY ALLEGHENY ENERGY UNITS 1 & 2 ranks 51st among the 170 operating power plants Bywatts maps in Pennsylvania and 16th of the 28 operating Natural Gas plants in the state. It accounts for about 0.8% of Pennsylvania's operating Natural Gas capacity and 0.2% of all operating capacity in the state. Nationally it is the 706th-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 1999, it is older than 50% of the 168 operating Pennsylvania plants with a recorded commissioning year. Its operator, ALLEGHENY ENERGY SUPPLY CO LLC, runs 8 operating plants in Pennsylvania totaling 932 MW. It shares Allegheny County with 5 other operating plants, including ALLEGHENY ENERGY UNITS 3 4 & 5 and BRUNOT ISLAND.

EIA-860 lists 2 generators at the site with 88 MW of nameplate capacity, all natural gas fired combustion turbine technology. Net generation was 131 GWh in 2024 (a 17% capacity factor), down 15% from 2022.

Grid neighborhood

The nearest named substation is CABOT (500 kV), about 17.7 miles away; the closest transmission line found within 10 miles is a 138 kV line, under 0.1 miles away. Another 10 operating power plants totaling 3,662 MW sit within 25 miles; the largest is KEYSTONE (1,884 MW, Coal). Within 50 miles are 2 mapped data centers; the nearest is Crown Castle Pittsburgh (Allegheny Center Mall) in Pittsburgh, about 14.1 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