The title is the worst kind of deceptive, clickbaity, untrue crap. As usual, MIT is the hub of both exciting science/engineering, and horrid press releases.
“Carbon-free fusion power could be ‘on the grid in 15 years’”
And then later:
“Prof Wilson was also cautious about the timeframe, saying that while the project was exciting he couldn’t see how it would achieve its goal of putting energy on the grid within 15 years.”