 A bipartisan group of U.S. Representatives asked officials at the Energy Department on Wednesday how Centrus Energy Corp, a company whose chief recently served as deputy at the department, won a federal contract to demonstrate a production method for a new fuel for nuclear power plants. The Energy Department issued a notice of intent in January to award a no-bid 115 million contract to Centrus to demonstrate by June 2022 production of a new fuel called high-assay low-enriched uranium, known as HALEU, which one day could be used in advanced nuclear reactors. We are deeply concerned about the Department of Energys award to Centrus Energy Corporation to demonstrate a method of producing HALEU, the lawmakers said in a letter to Energy Secretary Rick Perry. 