Microsoft invests in nuclear fusion with Helion power purchase deal.

Microsoft has signed a power purchase agreement with Helion Energy, a private US nuclear fusion company, to provide electricity in about five years. Helion's plant is expected to be online by 2028 and will target power generation of 50 megawatts or greater after a one-year ramp-up period. Fusion could one day help the world slash emissions linked to climate change. Unlike today's fission reactors, it could generate power without producing long-lasting radioactive waste.