From Sabine Hossenfelder You Tube channel: I'm Sorry But Small Nuclear Reactors Are Basically Over 
Small modular nuclear reactors were supposed to make nuclear power cheaper and faster to build. Governments from the US to the UK are now pouring billions into them. At the same time, one startup after another is going bankrupt. What’s going on? Let’s take a look.

Article from Nature Communications: Technoeconomic competitiveness of small modular reactors across U.S. power and industrial sectors
by Marisol Garrouste, Brendan Kochunas, Max Vanatta & Michael T. Craig