WEC Energy Group plans to close the two-unit, 1,190 megawatt Pleasant Prairie coal-fired power plant in the second quarter of 2018.

Unit 1 entered service in 1980 and Unit 2 came online in 1985. The plant uses an average of 13,000 tons of coal a day from Wyoming's Powder River Basin.

Pleasant Prairie has been operating at reduced capacity in recent years. The power plant did not operate for three months this past spring, the company said.

The power plant employs 158 people, and the company says it will try to reassign many of them to other facilities.

Both units were outfitted with emission control equipment. Credit: We Energies.Both units were outfitted with emission control equipment. Credit: We Energies.We Energies spent $325 million on pollution controls at Pleasant Prairie to meet air emission regulations. Selective catalytic reduction controls were added to Unit 2 in 2003 and Unit 1 in 2006 to reduce nitrogen oxide emissions by 85 to 90 percent.

In addition, wet flue gas desulfurization controls were added to Unit 1 in 2006 and Unit 2 in 2007. They reduced sulfur dioxide emissions by 90 percent, the company says.

WEC Energy Group also plans to shut down coal power plants in Green Bay and Presque Isle, Mich. The Michigan facility will be replaced with two new natural gas facilities.

In 2015, WEC converted a power plant near Milwaukee from coal to natural gas. A second power plant was converted from coal to natural gas in 2008.

The company also plans to increase its use of renewable energy and plans to add a 350 MW solar power facility in Wisconsin by 2020.