The ITER Organization formally revised its baseline first-plasma date to 2034, shifting from a previously stated 2025 milestone that had already been internally acknowledged as unachievable since 2022. The revised plan also moves the first deuterium-tritium operation to 2039.

Total project cost across all member contributions is now estimated at €22 billion, up from the prior €20 billion baseline. Director-general Pietro Barabaschi told reporters the rebaselining reflects “the cumulative reality of component delays in sectors, central solenoid modules, and toroidal-field coil cases.”

Total project cost across all member contributions is now estimated at €22 billion, up from the prior €20 billion baseline.

Privately, several Phase-II Milestone awardees have argued that the ITER slip increases the strategic value of compact private programs targeting the late 2020s — though all such programs face their own gating risks.