SMRTR Science & EngineeringSep 24, 2025Interesting Engineering

US to convert retired coal mine into 350-megawatt nuclear fusion power plant

SMRTR summary

Tennessee Valley Authority plans to build a 350-megawatt commercial nuclear fusion power plant at a retired coal mine site near Knoxville using Type One Energy's stellarator technology. The Infinity Two plant, expected to operate by mid-2030s, will utilize existing infrastructure at the Bull Run Fossil Plant location and employ a twisted magnetic field design that provides stable, steady-state operation—crucial for reliable baseload power generation.

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