Korean investors and technology firms are partnering with a U.S. developer to build a fourth-generation small modular reactor in Wyoming [1].
This project addresses the soaring electricity demands of expanding AI data centers. By providing a flexible and safe power source, the reactor aims to stabilize the energy grid for big tech companies struggling to find sustainable power for their operations [1, 2].
The construction site is located in Kemmerer, a small town in Wyoming situated approximately two hours from Salt Lake City, Utah [1, 2]. Work on the facility began in 2024, with the partners targeting the completion of a demonstration plant by 2030 [1].
Unlike traditional light-water reactors that use water as a coolant, this small modular reactor, or SMR, utilizes liquid sodium [1]. This coolant is designed to remain stable and not boil even at temperatures reaching 880 °C [1].
This technical shift enhances the plant's safety profile. According to YTN, the reactor allows for natural cooling even if power is lost during an emergency [1]. Additionally, the system can store heat and use it for power generation, which allows operators to adjust output based on real-time electricity demand [1].
"SMRs are emerging as a relief pitcher to solve the power demand concerns of big tech companies following the explosive expansion of AI data centers," a YTN anchor said [1].
“SMRs are emerging as a relief pitcher to solve the power demand concerns of big tech companies”
The shift toward fourth-generation SMRs represents a strategic move to decouple AI growth from carbon-heavy energy sources. By utilizing liquid sodium instead of water, these reactors offer higher thermal efficiency and passive safety features, potentially lowering the risk of meltdowns. The partnership between U.S. developers and Korean capital signals a growing international effort to commercialize modular nuclear tech to meet the immense energy requirements of the generative AI era.
