Yeah, the reactor vessels are usually pretty small. Usually it's the containment, generation, and cooling facilities that take up the most space even on traditional plants. Nuclear is nuts with energy densities almost a million times greater than chemical fuels. https://xkcd.com/1162/
With a lot of these SMR designs, they don't transport fuel or waste separate from the reactor. It is generally sealed within the reactor itself before delivery and then the entire reactor is transported intact for disposal or remanufacturing years later. They typically fit on the back of large trucks, trains, or barges.
Manufacturing enriched fuel from these designs would not be cost effective. Technology for enriching weapons grade nuclear fuel is widespread and tightly monitored. A group with one of these reactors would be hard pressed to do anything other than generate heat with it or make dirty bombs (Hospitals would be a better target for this.) Also the dang thing is pretty hard to run off with compared to smaller casks or rods of waste.
Edit: Almost certainly they are referring to an entire plant with more than a few SMRs when they say a million homes.
With a lot of these SMR designs, they don't transport fuel or waste separate from the reactor. It is generally sealed within the reactor itself before delivery and then the entire reactor is transported intact for disposal or remanufacturing years later. They typically fit on the back of large trucks, trains, or barges.
Manufacturing enriched fuel from these designs would not be cost effective. Technology for enriching weapons grade nuclear fuel is widespread and tightly monitored. A group with one of these reactors would be hard pressed to do anything other than generate heat with it or make dirty bombs (Hospitals would be a better target for this.) Also the dang thing is pretty hard to run off with compared to smaller casks or rods of waste.
Edit: Almost certainly they are referring to an entire plant with more than a few SMRs when they say a million homes.