H WILSON SUNDT GENERATING STATION

How H WILSON SUNDT GENERATING STATION compares

With 559 MW of capacity, H WILSON SUNDT GENERATING STATION ranks 23rd among the 71 operating power plants Bywatts maps in Arizona and 3rd of the 4 operating Coal plants in the state. It accounts for about 16% of Arizona's operating Coal capacity and 1.9% of all operating capacity in the state. Nationally it is the 155th-largest of the 324 operating Coal plants in the database. Commissioned in 1962, it is older than 85% of the 69 operating Arizona plants with a recorded commissioning year. Its operator, TUCSON ELECTRIC POWER CO, runs 5 operating plants in Arizona totaling 2,381 MW. It shares Pima County with 5 other operating plants, including NORTH LOOP and DEMOSS PETRIE.

Under the same EIA plant code, EIA-860 lists 14 generators at the site with 529 MW of nameplate capacity. Net generation was 1,806 GWh in 2024 (a 39% capacity factor), up 93% from 2022. Its generators came online between 1962 and 2020.

Grid neighborhood

The nearest named substation is IRVINGTON (230 kV), about 0.1 miles away; the closest transmission line found within 10 miles is a 138 kV line owned by TUCSON ELECTRIC POWER COMPANY, about 0.1 miles away. Another 4 operating power plants totaling 223 MW sit within 25 miles; the largest is NORTH LOOP (108 MW, Natural Gas). Within 50 miles is one mapped data center, Login Tucson in Tucson, about 7.0 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