Helion secures fusion power plant licences in a regulatory first for the industry

Orion’s Malaga site now operates under the first radiation licences issued anywhere for a fusion power plant

(Image courtesy of Helion Energy)

Helion Energy has become the first company in the world to secure the regulatory licences needed for a fusion power plant, following approval of a Radioactive Materials Licence and a Radioactive Air Emissions Licence from the Washington State Department of Health. The achievement is not simply a permitting formality. It signals that the regulatory infrastructure for commercial fusion, built on a federal framework deliberately decoupled from fission, is now operational at the state level, and that Helion’s Orion facility in Malaga, Washington, has the facilities, trained personnel, and safety programmes in place to meet the standards those licences require.

What the Helion fusion power plant licences actually confirm

The two licences, known as the RML and RAEL, confirm that Helion has the facilities, trained personnel, and safety programmes in place at the Orion site to meet the standards set by the Washington DOH for fusion operations. Washington holds licensing authority for fusion following the Nuclear Regulatory Commission’s 2023 decision to regulate fusion under the byproduct material framework, placing it alongside particle accelerators and hospitals rather than fission reactors. Congress codified that framework in the ADVANCE Act of 2024, and Washington’s own legislative pathway was further clarified by HB 1924 and HB 1018 in 2024 and 2025 respectively.

What the licences do not do is authorise power generation. They enable Helion to continue building on the Orion site, specifically allowing work to proceed on the generator building, for which the primary source states initial earthwork began in spring 2026. According to Helion’s June 2026 announcement, assembly and office building construction at the site is complete. Separately, Helion has previously announced a power purchase agreement to deliver at least 50 MW to Microsoft, with a target date of 2028.

Grid interconnection and the broader permit picture

Alongside the DOH licences, Helion stated it is working toward a transmission interconnection agreement with the Chelan County Public Utility District, described by Helion as what would be the first such agreement for a fusion power plant. Grid connection for any new generation facility requires negotiated infrastructure agreements with the local utility, and for a first-of-kind technology, progress on that agreement is a commercially significant parallel track to the radiation licences themselves.

The timing sits close to the June 4, 2026 close of Helion’s $465 million Series G investment round, which according to Helion’s separate funding announcement brought total capital raised to $1.5 billion and valued the company at $15.5 billion. Within two weeks, Helion announced its largest funding round to date and secured two radiation licences representing a regulatory first. Both developments are prerequisites for the build schedule the 2028 PPA deadline demands.

The ADVANCE Act framework and what it means for the sector

For the broader commercial fusion industry, the significance of Helion’s licences extends beyond the company. The NRC published its proposed rulemaking formalising the fusion byproduct material framework in February 2026, with the public comment period now closed and the rule awaiting finalisation. Washington State has now issued licences under the existing Agreement State structure before that federal rulemaking is complete, establishing a working precedent for how state-level licensing can proceed ahead of a finalised national framework. Jill Wood, director of the DOH’s Office of Radiation, described leading radioactive regulatory oversight for the fusion industry in Washington as “an honour” and “essential to protecting public health while advancing clean energy.”

The regulatory pathway Helion has navigated, from environmental review through county conditional use permits to DOH radiation licences, is more granular than any fusion company has previously traversed. Whether the approach Helion has established in Washington becomes a reference point for other states and developers will depend on how quickly the NRC’s proposed framework is finalised and how Agreement States choose to apply it.

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