Helion raised a $465 million Series G at a $15.5 billion post-money valuation, led by Thrive Capital and backed by Sam Altman, Bill Ford, SoftBank Vision Fund 2 and Lightspeed. Total funding is now about $1.5 billion.
Qué cambió
The valuation rests heavily on a power-purchase agreement signed with Microsoft in 2023. Helion says its first fusion plant, Orion, could begin operating as early as 2028 if it meets delivery conditions.
Por qué importa
Helion’s direct energy-conversion approach avoids the usual steam turbine path, but the company publishes little peer-reviewed data. The investment is a wager that AI data centers will need clean, always-on power before grids can catch up.
Fuentes：Helion Energy official announcement and TechCrunch report on Helion funding；CocoLoop