Malkhodr

The other commenter mentioned some things, but another aspect is that, if I'm correctly remembering the design, they have a shorter refueling cycle. Whereas usually you'd have to shut down a reactor for around a month (couple weeks at least) Pebble Beds can operate continuously iirc.

I LOVE Pebble Bed Reactors! They've been one of, if not my favorite Reactor design as I've continued my academic journey as an aspiring Nuclear Engineer. I got to actually study them a bit more for my classes recently and I adore them. Apperceive my professor also loves them and other HTGRs so I might bring this up with them my next class.