General Fusion

Stories

The race to repeatable fusion ignition

Became world's first publicly traded pure-play fusion company in July 2026 (Nasdaq: GFUZ) following SPAC merger with Spring Valley Acquisition Corp. III

NIF achieved ignition for the 11th time on June 20, 2026, producing 7.9 megajoules from 2.08 megajoules of laser energy. The Department of Energy approved a laser upgrade in April that will push NIF's laser energy from 2.2 to 2.6 megajoules, which would allow the 8.6-megajoule yield record to be broken.

Updated Oct 22

General Fusion reaches 1 keV electron temperature milestone

New Capabilities

Achieved 1 keV electron temperature on LM26; technical paper submitted for peer review

General Fusion's LM26 machine heated plasma electrons past 1 kilo-electron volt (keV), about 12.6 million degrees Celsius, using a metal wall to compress plasma over milliseconds. The result, co-published with the UK Atomic Energy Authority, is a world-first for low-speed compression.

Updated Oct 13