Basin Electric Power Cooperative of Bismarck is proceeding with plans for a 300MW combined-cycle natural gas plant. The Deer Creek Station would cost USD 405 million to build and is designed as a combined-cycle power plant. Plans call for the plant to have one turbine fired by natural gas and the other by steam produced by the heat from the first turbine. The utility has filed its notice to proceed with the South Dakota Public Utilities Commission. The company will need permits from the PUC and other state agencies. Construction is expected to start next fall, and the plant could be operating by 2012.