SM-1
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This article is about the nuclear reactor. For the SM-1 missile, see Standard missile.
This article is about the nuclear reactor. For the helicopter, see [[PZL SM-1]].
SM-1 is a 2 MWe nuclear reactor developed for The US Army Nuclear Power Program (ANPP). It was located at Fort Belvoir, VA, and achieved first criticality in 1957 (several months before the Shippingport Reactor) It was the first US nuclear power plant to be connected to an electrical grid.