Nuclear power is carbon-free, so it is technically a clean power source. One big story investors don't want to miss is the huge support the nuclear power industry is getting from the U.S. government. Massive growth plans for nuclear powerThe U.S. nuclear power fleet produces around 100 gigawatts of power today. Already, the groundwork has been laid to test new reactor technologies and to provide funding for both nuclear power start-ups and existing nuclear power companies seeking to expand. Notably, the U.S. government has provided Constellation with a $1 billion loan tied to its nuclear power ambitions.