Helion Energy raises $500M Series E plus $1.7B in milestone commitments, led by Sam Altman, to commercialize 50 MW fusion plants

Helion Energy closed a $0.5 billion Series E and secured an additional $1.7 billion in milestone-linked commitments, led by Sam Altman, to commercialize container-sized fusion systems aimed at delivering about 50 MW of electricity with low radioactive waste.

DDavid Kirtley HHelion Energy