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Fortune
Fortune
Nicholas Gordon

Microsoft to buy nuclear fusion power from Altman-backed startup by 2028

(Credit: David Paul Morris—Bloomberg/Getty Images)

Microsoft is making a bold bet that it can get power from nuclear fusion in half a decade’s time.

The company announced Wednesday that it had agreed to purchase electricity from Helion Energy, a nuclear fusion startup, by 2028. The startup promised to provide at least 50 megawatts for Microsoft within a year, or pay a financial penalty. 

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