Helion just got the world’s first licences to run a fusion power plant

Helion has become the first company in the world licensed to operate a fusion power plant. On 16 June, the Washington-based firm said it had received two licences from the state’s Department of Health, clearing a regulatory bar no fusion company has reached before.

It is a real milestone. It is also a regulatory one, not a scientific one, and that distinction is the whole story.

The two licences, covering radioactive materials and radioactive air emissions, apply to Orion, the plant Helion is building in Malaga, Washington. The company says the site’s assembly and office buildings are finished, with earthwork on the generator building started this spring.

Why a health department licenses a power plant

The reason the approval came from Washington’s health department, not the US Nuclear Regulatory Commission, matters. The NRC has decided to regulate fusion under its ‘byproduct material’ framework, the same one used for particle accelerators and hospital equipment, rather than the heavier regime for fission reactors.

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That call, codified by Congress in the bipartisan ADVANCE Act of 2024, gives fusion a lighter, faster path to deployment, on the logic that it carries a very different safety profile. State laws in Washington added permitting certainty on top.

In other words, part of why Helion got here first is that the rules were written to let fusion move quickly.

Altman’s money and a Microsoft deadline

The licences would be a footnote if not for who is standing behind the company. Sam Altman chairs Helion and has put in about $375m of his own money, his largest personal investment.

More pointedly, Microsoft signed a deal back in 2023 to buy fusion power from Helion starting in 2028, the world’s first such agreement, with financial penalties if Helion fails to deliver. Orion is meant to produce 50 megawatts.

That contract turns an aggressive engineering goal into a commercial commitment with a date attached, which is unusual in a field that has spent decades being ’30 years away’.

A licence is not a working reactor

Here is the part the milestone does not change. No one has yet produced net commercial electricity from fusion, and Helion’s prototype, Polaris, still has to show it can generate electricity at all.

The science remains the hard part. Recent experiments have set fusion energy records and made real leaps toward generation, but the reactions still tend to consume far more energy than they release.

So Helion now has something no rival has: permission to run the plant. Whether it has a plant that works, and whether it can switch it on by 2028, are the questions this licence does not answer.