BYRON GENERATING STATION

How BYRON GENERATING STATION compares

With 2,450 MW of capacity, BYRON GENERATING STATION is the largest of the 158 operating power plants Bywatts maps in Illinois and the largest of the 6 operating Nuclear plants in the state. It accounts for about 20% of Illinois's operating Nuclear capacity and 6.0% of all operating capacity in the state. Nationally it is the 6th-largest of the 55 operating Nuclear plants in the database. Commissioned in 1985, it is older than 76% of the 150 operating Illinois plants with a recorded commissioning year. Its operator, EXELON NUCLEAR, runs 6 operating plants in Illinois totaling 12,415 MW. It shares Ogle County with 3 other operating plants, including NORTH NINTH STREET and SOUTH MAIN STREET.

EIA-860 lists 2 generators at the site with 2,450 MW of nameplate capacity, all nuclear technology. Net generation was 19,849 GWh in 2024 (a 92% capacity factor), up 1% from 2022. Its generators came online between 1985 and 1987.

Grid neighborhood

The nearest named substation is BYRON (345 kV), about 0.2 miles away; the closest transmission line found within 10 miles is a 345 kV line, under 0.1 miles away. Another 9 operating power plants totaling 1,337 MW sit within 25 miles; the largest is LEE ENERGY FACILITY (814 MW, Natural Gas).

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