▸ 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.
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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.
In megatrends
Related players
◆ ARPA-E◆ Linglong One
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Small modular reactorsEnergy & ClimateLinglong OneARPA-EThe SMR still under constructionNuclear medicineNuclear fusionLongevity & HealthERCOTCommonwealth Fusion SystemsTeslaGas got passed standing stillHelion EnergySHINE TechnologiesVerkorThe fusion scoreboardThe halfway line that isn'tAES CorporationMaximoThe nuclear site that runs on gas98.6% paperStarcloud
