The state’s largest electric utility will close a long running power plant in Kenosha County. We Energies said Tuesday it will shut down its coal fired plant in Pleasant Prairie between April and June of next year in favor of cheaper alternatives. The Milwaukee based utility and others have been converting to the more economical natural gas to run its power plants — and they’ve been buying surplus electricity from other utilities while developing more renewable energy like wind and solar power. The Kenosha County is among the state’s largest, supplying enough electricity for one-million homes — but it’s been running at a lower capacity in recent years, and not running at all for three months this past spring. We Energies says it will try to keep as many of the plant’s 158 employees as possible, by moving them to other facilities.