Frontier signal stream

On June 2, 2026, Pacific Fusion unveiled a subscale pulser module prototype that delivered 440 gigawatts of peak power in an 80-nanosecond burst, meeting all requirements to scale to its full demonstration system. The technical milestone unlocked another tranche of the company's tranche-based Series A round, which exceeds $1 billion total. Construction on the demonstration fusion facility (156 full-size pulser modules) is expected to begin summer 2026.

Pacific Fusion unveiled its latest subscale pulser-module prototype on June 2, 2026, delivering 440 gigawatts of peak power in an 80-nanosecond burst — a third the size of the full module and meeting all scaling requirements. The result unlocked another (undisclosed) tranche of its >$1B tranche-based Series A. Construction on the demonstration inertial-confinement facility (156 full-size pulser modules) is set to begin this summer; the company aims to skip scientific breakeven and target facility breakeven.