Has there been a single SMR deployed and working yet? There were lots of talk about GE BWRX-300 and Rolls Royce SMR but none of them seems to have even started construction.
There are! But not in Europe yet. Both are in China and russia. (China's HTR-PM at Shidaowan and Russia's floating Akademik Lomonosov). Check the full fleet (operating, under construction, etc) at the bottom of this post: https://reactoratlas.com/en/wiki/smr