I also find $RR. interesting, especially because I know they are working on Small Modular Reactors and I am convinced that the technology could solve many energy problems.
SMRs are being planned that run at 200-400MW, i.e. produce a third as much as typical reactors but are only 1/10 the size. The cooperation is probably with GE, Mitsubishi and Siemens. I'm also very excited about it.