WILLIAM F WYMAN

How WILLIAM F WYMAN compares

With 846 MW of capacity, WILLIAM F WYMAN is the largest of the 83 operating power plants Bywatts maps in Maine and the largest of the 3 operating Oil plants in the state. It accounts for about 93% of Maine's operating Oil capacity and 20% of all operating capacity in the state. Nationally it is the 7th-largest of the 544 operating Oil plants in the database. Commissioned in 1957, it is older than 62% of the 81 operating Maine plants with a recorded commissioning year. It shares Cumberland County with 7 other operating plants, including WESTBROOK ENERGY CENTER POWER PLANT and S D WARREN WESTBROOK.

EIA-860 lists 5 generators at the site with 863 MW of nameplate capacity, mainly petroleum liquids technology. Net generation was 35 GWh in 2024 (a 0.5% capacity factor). Its generators came online between 1957 and 2016.

Grid neighborhood

The nearest named substation is RAVEN FARM (345 kV), about 3.1 miles away; the closest transmission line found within 10 miles is a 345 kV line owned by CENTRAL MAINE POWER CO, under 0.1 miles away. Another 17 operating power plants totaling 814 MW sit within 25 miles; the largest is WESTBROOK ENERGY CENTER POWER PLANT (564 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