SUMPTER

How SUMPTER compares

With 340 MW of capacity, SUMPTER ranks 17th among the 171 operating power plants Bywatts maps in Michigan and 9th of the 29 operating Natural Gas plants in the state. It accounts for about 3.7% of Michigan's operating Natural Gas capacity and 1.3% of all operating capacity in the state. Nationally it is the 424th-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 2002, it is newer than 80% of the 168 operating Michigan plants with a recorded commissioning year. Its operator, WOLVERINE POWER SUPPLY COOP, runs 6 operating plants in Michigan totaling 560 MW. It shares Wayne County with 7 other operating plants, including DEARBORN INDUSTRIAL GENERATION and DELRAY.

EIA-860 lists 4 generators at the site with 340 MW of nameplate capacity, all natural gas fired combustion turbine technology. Net generation was 190 GWh in 2024 (a 6.4% capacity factor), down 22% from 2022.

Grid neighborhood

The nearest named substation is BROWNSTOWN (345 kV), about 14.9 miles away; the closest transmission line found within 10 miles is a 120 kV line owned by WYANDOTTE MUNICIPAL SERV COMM, under 0.1 miles away. Another 13 operating power plants totaling 5,731 MW sit within 25 miles; the largest is MONROE (3,293 MW, Coal).

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