Jeffery Power Plant, Kansas

Jeffery Power Plant (also known as Jeffery Energy Center), is located near St. Marys, Kansas, in Pottawatomie County. The plant is home to three coal-fired units, whose total output capacity is 2,160MW, making it the largest power plant in the state. Units 1, 2, and 3 have output capacities of 720MW each, becoming operational in 1978, 1980, and 1983 respectively. Wyoming's Powder River Basin provides most of the plant's coal, while the Kansas River supplies most of its water. In 2014, a 24-acre artificial wetland system was created in order to remove assorted pollutants from the plant's wastewater. The plant is owned and operated by Evergy, Inc.