Mentatcurated
▸ Concept also: SMR, small modular reactor

Small modular reactors

Nuclear fission reactors designed to be built in factories and shipped to site, rather than constructed on-location at gigawatt scale.

Learn first

In a nutshell

A conventional nuclear plant is a one-off construction project: thousands of workers, a decade of on-site civil engineering, a reactor producing a gigawatt or more. An SMR swaps that model — the reactor module is small enough (typically under 300 MW) to be fabricated in a controlled factory, shipped by rail or road, and assembled on site. The theory is that factory repetition drives down cost and schedule the same way it did for aircraft. The hard part is that no SMR design has yet completed construction and reached commercial operation, so the cost curve is still a forecast, not a fact.

Where it came from

Year2010
SourceIAEA and U.S. DOE began formal SMR program definitions around 2010–2012
Why it matteredThe term predates this but the modern regulatory and commercial push dates from this period.

Related players

◆ ARPA-E◆ Linglong One

How this connects

Tap a node to open it