General Fusion

General Fusion is Canada's flagship fusion program and the leading developer of magnetized target fusion (MTF). A magnetized plasma is injected into a spinning liquid-lithium vortex and compressed by synchronised pneumatic pistons. The lithium liner simultaneously absorbs neutrons, breeds tritium, and transfers heat — collapsing three of the hardest fusion engineering problems into a single mechanical subsystem.

Avoid both massive superconducting magnets and high-power lasers by using mechanical compression of a liquid metal liner — radical mechanical simplicity at the cost of pulsed operation.

Global electricity demand is entering an unprecedented growth phase driven by AI infrastructure, data centers, transport electrification, industrial decarbonization, water desalination, and advanced manufacturing. Solar suffers intermittency, wind capacity-factor variability, natural gas carbon emissions, conventional nuclear cost and deployment speed, and batteries energy-density and duration limits. The world requires a new source of clean, dispatchable baseload energy. Fusion represents the ultimate energy source — the challenge is making it commercially practical.

MTF sits between magnetic and inertial confinement: a magnetized plasma reduces thermal conduction losses long enough for mechanical compression to drive it to fusion conditions. The approach was first proposed at Los Alamos in the 1970s; General Fusion is the only program in the world bringing it to commercial scale.

Deuterium-tritium fusion releases ~80% of its energy as 14.1 MeV neutrons, which deposit their kinetic energy in a surrounding blanket. The heat drives a conventional steam (Rankine) or supercritical-CO₂ (Brayton) turbine.

The most thoroughly understood fusion fuel cycle, highest cross-section at achievable temperatures, and proven back-end engineering (steam turbines are 19th-century technology). Trade-offs: neutron-induced materials damage, tritium handling, ~33–40% Carnot-limited efficiency.

By replacing superconducting magnets and high-power lasers with steel, pistons and liquid metal, General Fusion targets dramatically lower capital cost per installed megawatt — at the price of pulsed operation. The 2026 Spring Valley III SPAC merger and planned Nasdaq listing ('GFUZ') unlock public-market capital for the LM26 program.

Affordable, dispatchable fusion power built from steel, lithium and pneumatics rather than exotic superconductors.

Demonstrate fusion conditions with MTF, then deliver the world's first commercial liquid-metal fusion power plant.

• Piston synchronisation to nanosecond precision
• Liquid lithium handling at fusion-relevant temperatures
• Plasma injector lifetime over millions of shots

1. 2024

   LM26 first plasma

2. 2026

   Business combination with Spring Valley Acquisition Corp. III

3. Mid-2026

   Targeted Nasdaq listing as GFUZ

4. 2026–2027

   LM26 to reach 100M °C plasma temperature