This has kind of been the problem with SMRs; they sound great, but as you develop them, they get less and less small and modular. These are 470MWe. Coincidentally, the (very old) 'normal' MAGNOX reactors which used to operate at this site were 490MWe; in their day they were considered quite large.

> Afterall, they are from the same technology that was powering nuclear subs, right?

Not usually, no; that wouldn't be cost-effective.

> Not usually, no; that wouldn't be cost-effective.

The reason being that the nuclear sub reactors run on very enriched uranium which is very expensive and not fun if some got away.