Helion Energy starts works for ‘world’s first fusion power plant’

US fusion company Helion Energy has begun initial work onsite for its first fusion power plant in Malaga, Chelan County, Washington.

The site, approximately 160km east of Seattle, is land on lease from the Chelan County Public Utilities District, chosen for its ready access to transmission and legacy of energy innovation, Helion Energy has said.

Its use follows an environmental review and engagement with local and state stakeholders.

With this, Helion Energy reports being on track to deliver energy to Microsoft through an at least 50MW PPA by 2028, with Constellation Energy serving as power marketer – and potentially to be the first to deliver fusion energy as a commercial proposition.

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“Today is an important day – not just for Helion, but for the entire fusion industry – as we unleash a new era of energy independence and industrial renewal,” said David Kirtley, co-founder and CEO.

“Since we founded the company, we have been completely focused on preparing fusion technology for commercialisation and getting electrons on the grid. Starting site work brings us one step closer to that vision.”

Helion Energy’s Polaris machine, on which operations are well under way and which is planned to be the first to demonstrate electricity from fusion, is the company’s 7th generation prototype of its pulsed non-ignition magneto-inertial technology.

Combining aspects of both magnetic and inertial confinement fusion, with the use of magnets to create and confine plasma, which is then compressed to fusion conditions, the solution is considered to offer a high degree of efficiency and without the need to reach ignition.

With its current 6th generation Trenta, Helion Energy asserted being the first private company to achieve a fuel temperature of 100 million degrees Celsius, which is generally considered the required operating temperature for a commercial fusion power plant.

Among the advances in Polaris compared to Trenta are stronger magnets and faster pulsing, which should deliver improved fusion conditions – and with adjustment of the pulse rate, providing adjustment to the power output.

In January, Helion Energy reported $425 million in series F funding aimed to scale up its manufacturing in the US and, in turn, accelerate the delivery of Polaris and subsequent fusion systems.

Among these is a planned 500MW power plant to support the decarbonisation of a Nucor steelmaking facility in the US.