NuScale Power

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NuScale Power Corporation is a publicly traded American company that markets its proposed designs for small modular reactors (SMRs). It is headquartered in Tigard, Oregon. The company's proposed VOYGR power plant, which would use 50 MWe modules and scale to 12 modules (600 MWe), was the first SMR design to be certified by the US Nuclear Regulatory Commission (NRC) (2022). The newer 77 MWe module designs, known as the VOYGR-4 (308 MWe) and VOYGR-6 (462 MWe), were submitted for NRC review on January 1, 2023, and approved May 29, 2025. NuScale is now seeking NRC approval for their 12-module, VOYGR-12. The SMR is planned to be scalable, offering up to 924 MWe. NuScale Power Modules would be surrounded by a 9 feet (2.7 m) diameter by 65 feet (20 m) tall reactor vessel that relies on conventional cooling methods. The modules would run on low enriched uranium fuel assemblies based on existing light water reactor designs. For a 12-module configuration, the modules would be stored individually in submerged storage wells on the floor of a shared 75-foot deep, 10-million-gallon reservoir, and covered by a concrete barrier. A natural convection coolant loop would be relied upon to feed all of the modules used in a plant. The patented system is claimed to be capable of delivering additional fresh water to each reactor vessel without powered pumps in the event of an emergency. NuScale had an agreement to build reactors in Idaho by 2030, but it was canceled in 2023 due to the estimated cost having increased from $3.6 billion to $9.3 billion for the original VOYGR power plant. As of 2025, the company has a number of contracts under negotiation around the world, including Romania and Tennessee. More SMR interest has come from tech giants who are looking to power US-based...