The filing initiates the pre-application process for the Enhanced CANDU 6, a 700-megawatt pressurized heavy-water reactor. Unlike conventional systems, this platform utilizes natural uranium and allows for online refueling, a distinct technical footprint that the company hopes will appeal to a U.S. energy grid currently strained by the infrastructure requirements of cloud computing and next-generation artificial intelligence.
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AtkinsRealis Initiates U.S. Licensing Path for CANDU Reactors
As U.S. electricity demand surges under the weight of AI-driven data center expansion, Montreal-based AtkinsRealis has formally notified the Nuclear Regulatory Commission of its intent to bring its proprietary CANDU reactor technology to the American market, marking a significant step in the company’s cross-border growth strategy.

With 34 units already operational globally, AtkinsRealis holds exclusive rights to the platform and is moving to capitalize on a tightening power supply. The company is currently engaged in active discussions with U.S. utility providers, state officials, and hyperscale data center operators to assess potential deployment sites. This move represents a strategic pivot for the engineering firm, aiming to integrate its Canadian-designed nuclear expertise into the American industrial landscape.
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