Avalanche fusion startup achieves 11 million degree plasma milestone with desktop-scale reactor
Avalanche, a fusion startup, has heated plasma to approximately 11 million degrees Celsius in its desktop-scale prototype reactor, exceeding a key milestone that only a handful of companies have achieved. The company accomplished this feat with less than $50 million in venture investment, significantly less than most competitors. The achievement suggests the startup's smaller reactor design could potentially lead to more cost-effective fusion power generation compared to larger competing approaches.
Avalanche has announced that its desktop-scale fusion prototype, called Jyn, has exceeded 11 million degrees Celsius—a critical milestone in fusion research nearly matching the Sun's core temperature. Plasma physicists measure this achievement using kiloelectron volts (kEV), with temperatures above 1 keV considered significant enough to attract serious attention from the fusion community. The startup reached this milestone with less than $50 million in venture funding, substantially less than most fusion competitors. Avalanche's approach differs from industry peers by pursuing smaller, more iterative reactor designs rather than large megawatt-scale facilities; the Jyn reactor's fusion core is only five inches in diameter and has been updated 25 times since last fall. While the results have been validated by an MIT plasma physicist, they have not yet been published in a peer-reviewed journal. The achievement does not guarantee commercial success but indicates the company is progressing toward conditions necessary for net-positive fusion reactions.
What's missing
The article does not provide details on Avalanche's timeline for achieving net energy gain or commercialization, nor does it discuss the specific plasma density and confinement time achieved—both critical parameters alongside temperature for assessing fusion viability. Additionally, the validation by the MIT physicist is mentioned but no independent verification from other institutions is noted.
What different sources said
- TechCrunchCenter
Avalanche’s desktop fusion reactor delivers blistering-hot plasma
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