“SPARC will nearly be completed by the end of 2026 and will produce its first plasma energy in 2027.”
Said Jan 7, 2026Deadline Dec 31, 2027Fortune, 'Fusion power nearly ready for prime time as Commonwealth builds first pilot...', January 7, 2026
First plasma had earlier been guided to 2026 before slipping to 2027; CFS reiterated the 2027 first-plasma target in February 2026.