In 2023, Liz and Rich Muller founded Deep Fission to put working nuclear reactors underground. 4 years later, its Kansas pilot is targeting a 5-MW reactor by late 2027

Kansas experiment represents something larger than one companys attempt to reinvent the nuclear power plant. Deep Fission is testing whether decades-old reactor technology can be paired with modern drilling techniques to create a radically different energy infrastructure. If the company succeeds, underground small reactors could offer a new way to produce dependable electricity close to major industrial and computing loads while potentially reducing the surface infrastructure traditionally associated with nuclear generation.

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