SMRTR Science & EngineeringJul 2, 2025Interesting Engineering

Heart of the world’s largest nuclear fusion reactor to be assembled by US firm

SMRTR summary

Westinghouse Electric Company has secured a $180 million contract to assemble the core of ITER, the world's largest nuclear fusion reactor. The company will weld together nine sectors of the vacuum vessel housing the fusion plasma. This advances ITER's goal of generating 500 MW of fusion power from 50 MW of input by 2035. The international project, involving 35 nations, aims to demonstrate fusion as a large-scale, carbon-free energy source.

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