Tom Still: Fusion energy is a nascent ‘hot spot’ for Wisconsin economy’

There are 43 known fusion companies worldwide and 25 in the United States, with three in Wisconsin: Realta Fusion, Type One Energy and Shine Technologies, each in different stages of development. Worldwide, about $6 billion in private investment has gone into 30 fusion startups in the past five years, not to mention major public investments in many countries.

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