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Nuclear supply chain limits reactor rollout pace
Curtiss-Wright said its reactor coolant pump capacity could support only three to four AP1000 reactors per year, while the DOE targets long-lead components with a $17.5 billion conditional loan.
Nuclear demand tied to the nuclear renaissance still depends heavily on how quickly key parts of the fuel and reactor supply chain can be expanded, according to ETF Trends.
The outlet highlights reactor coolant pumps as a major constraint. It notes that each Westinghouse AP1000 needs four pumps, and Curtiss-Wright management said at a November 2025 investor conference it could produce about 12 to 16 pumps annually, which would equate to only three to four AP1000 reactors per year. Manufacturing and delivery of a reactor coolant pump can take four to five years, raising questions about near-term plans discussed by the federal government to announce as many as 20 new reactors.
ETF Trends also points to government and industry steps aimed at easing bottlenecks. Curtiss-Wright announced an $80 million multi-year investment in its Cheswick, Pennsylvania campus for AP1000 reactor coolant pump manufacturing, and the Department of Energy has provided a $17.5 billion conditional loan intended for ordering long-lead components for grid-scale Westinghouse reactors.
Fuel supply is another potential limiter. ETF Trends says the U.S. imports about 20% to 25% of enriched uranium from Russia, and while a federal ban on Russian low-enriched uranium imports allows temporary waivers through 2027, the gap may need to be filled by domestic and allied producers. The outlet adds that meeting U.S. nuclear energy needs could require up to $35 billion in enrichment-related capital investment, given the limited commercial availability of high-assay low-enriched uranium.