News ReleaseWHEATFIELD — Merrillville-based Northern Indiana Public Service Co., or NIPSCO, has filed plans with the Indiana Department of Environmental Management Monday, Sept. 22 to construct a 2,300-megawatt facility at the R.M. The proposal calls for four combined-cycle combustion turbines with electrical generators and heat recovery steam units, according to state filings. The utility is preparing to retire its coal-fired units at the Schahfer site and has already announced plans for a $644 million natural gas peaker unit there. The new facility would significantly expand capacity, positioning the utility to supply large-scale energy needs tied to data center growth. Still, the effort as planned would create the third-most greenhouse gas emissions of any industrial plant in Indiana.