General Fusion debuted on the Nasdaq Monday — the first pure-play publicly traded fusion power company.
Jeff Bezos made his first investment in General Fusion in 2011.
→ Fourteen years, → several near-death funding crises, and → one 25% staff layoff later, the company rang the Nasdaq bell Monday as GFUZ ( ▲ 25.09% ) — the first pure-play publicly traded company betting it can commercialize nuclear fusion.
The stock popped hard on debut day. The company's own technology is currently running at less than a tenth of the temperature it needs to work.
What They're Actually Trying To Build?
General Fusion is trying to recreate the reaction that powers the Sun—inside a machine on Earth.
Instead of burning fuel like a conventional power plant, the goal is to fuse hydrogen atoms together. If successful, that reaction would release enormous amounts of clean energy.
Magnetized Target Fusion, Explained
1\ Create plasma
Magnetic fields generate an ultra-hot cloud of charged gas called plasma—the same state of matter found inside stars.
2\ Contain it
The plasma sits inside a chamber surrounded by liquid lithium.
3\ Compress it
Dozens of mechanical pistons fire at the same time, squeezing the liquid lithium inward and crushing the plasma.
4\ Trigger fusion
If the temperature and pressure become high enough, hydrogen atoms fuse together, releasing energy.
Unlike many competitors that rely on massive superconducting magnets or powerful lasers, General Fusion uses a combination of mechanical compression and magnetic fields.
The company believes that approach could make future fusion power plants simpler and less expensive to build.
How Close Are They?
General Fusion's biggest challenge is making fusion actually work.
Three major scientific milestones still separate today's machine from a commercial reactor.
The most important number isn't 100 million°C.
It's 8.4 million°C.
That's the company's current best result—still below its own first milestone.
Reaching 100 million°C would represent another order-of-magnitude leap. Beyond that comes the industry's defining hurdle: the Lawson Criterion, the point where a fusion reaction produces more energy than it consumes.
That milestone is targeted for 2028.
It simply mean investors are buying a company that still has several major scientific breakthroughs ahead of it before anyone can talk about commercial electricity.
Even CEO Greg Twinney describes the company's 2035 power plant target as an "optimistic scenario."
