Fusion energy group Helion said the company has completed a $465-million Series G investment round, increasing the Everett, Washington-based group’s valuation to $15.5 billion. Helion is among dozens ...

OpenAI Chief Executive Sam Altman said on Monday he has stepped down from the board of directors of Helion Energy, the fusion startup he ‌has backed since 2015, as the companies start to explore ...

Artificial intelligence (AI) group OpenAI is reportedly discussing buying electricity from Helion Energy, the fusion startup company based in Everett, Washington. Sources told POWER that a deal would ...

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EVERETT — A Chelan County hearing examiner approved a conditional use permit on Tuesday, allowing Everett-based Helion Energy to construct what could become the world’s first fusion power plant in the ...

Fusion energy developer Helion Energy announced it has begun initial earthwork and construction on the site of Orion power plant in Malaga, in the US state of Washington. The plant will provide ...

Sustainability: News about the rapidly growing climate tech sector and other areas of innovation to protect our planet. SEE MORE by Lisa Stiffler on Jul 30, 2025 at 11:23 am October 14, 2025 at 4:23 ...

A nuclear fusion startup backed by OpenAI founder Sam Altman has raised nearly half a billion dollars to build what it hopes to be the world’s first power plant using the next-generation energy source ...

Washington-based fusion energy company Helion just raised US$425 million in fresh funding for its bid to be the first to produce usable electricity through nuclear fusion. The firm's latest Series F ...

Helion Energy Inc., a startup working to develop commercial fusion reactors, today announced that it has closed a $425 million late-stage funding round. The Series F deal included the participation of ...

Building a working nuclear fusion reactor has proven to be a daunting challenge even for multiple wealthy nations, as we've seen with the much-delayed ITER project. However, a private start-up called ...