Fourth generation

Hyperion Power Generation has another fourth-generation reactor design licensed from Los Alamos National Laboratory. Rather than using circulating water to cool reactors and spent fuel pools, the Hyperion design is cooled with liquid lead bismuth. Even with a loss of power, the natural convection would allow the reactor rods to cool without human intervention. These 25-megawatt plants would be used to replace diesel generators in remote locations, such as mining operations or islands.