Since lots of readers are interested, or, perhaps, a few are very interested, I thought I would mention that the US Department of Energy is beginning an effort to promote the development of modular nuclear reactors in the US. The plan is to choose two designs, with the object of having them in production by 2022. It’s pretty much a foregone conclusion that one of them will be the Westinghouse SMR, a cut down version of the Westinghouse AP1000 which is the only serious contender remaining as far as conventional reactors are concerned. That leaves one spot for another contender, call it SMRX.
I therefore need to revisit my previous conclusion on SMRs, namely, that none of them except the Westinghouse have any prospect of being in operation before 2020. First, I think it’s pretty clear that the designs that don’t make the DOE cut are finished – in a generally dire funding environment, who is going to back a horse that has already placed third or worse. Second, the DOE 2022 date is an aspirational target that is virtually certain to be missed, at least by SMRX. But, if things go well, 2025 is a possibility. So, by then we might have one conventional design and two SMRs in production on a serious scale.