For the past 20 years, fission reactors have produced a nearly unchanging portion of the nation’s electricity: around 20%. But that percentage could start increasing soon. The advent of small modular reactors, or SMRs, and advanced reactor concepts, or ARCs, signals a new generation of fission power. SMRs are substantially smaller than most commercial nuclear reactors today and use standardized designs, reducing construction costs and production time. Meanwhile, ARCs explore new technologies to produce fission power more efficiently and safely.
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