Up over 200% on the year, is Centrus Energy still a compelling growth stock?When you think of the next generation of energy, what's the first thing that comes to mind?If you said anything but advanced nuclear power, you might be surprised to learn that nuclear is back in the conversation. And Centrus Energy (LEU -1.49%) is one of the few U.S. players sitting in the middle of it.Indeed, this nuclear energy company is the only U.S.-owned enricher licensed to make high-assay low-enriched uranium (HALEU) -- aka ...