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Helion Energy begins construction of nuclear fusion power plant for Microsoft data centers

Helion Energy, an OpenAI-backed startup, and SoftBank Venture Capital's venture arm have begun construction at a site where a nuclear fusion plant will be built. The power plant is expected to supply Microsoft data centers with electricity by 2028. Helion Energy hopes to use the grid infrastructure already in place at the Rock Island Dam hydroelectric power plant near Malaga, Washington.

The startup has yet to receive final permits from Washington, but it said that the work it's done puts it on course to sell electricity to Microsoft in accordance with a 2023 deal. Fusion is the process of ramming together atoms to release energy. It does not emit significant amounts of greenhouse gases, nor create large quantities radioactive waste. Scientists and engineers have yet to find a reliable way to generate more energy from fusion than is required to sustain and create the reaction.

Helion has been working on this with its current prototype called Polaris. It is located in Everett Washington where it will build components for Orion, the machine that will be built at Malaga.

David Kirtley (co-founder and CEO of Helion) said that Orion would connect to Washington's main power delivery networks.

Kirtley stated that "we'll be able connect to the same grid upstream from the Microsoft datacenters."

Microsoft has been saying for years that nuclear energy is a part of the mix of carbon-free sources of energy. They have also signed agreements to purchase power from conventional fission nuclear power. Melanie Nakagawa is Microsoft's chief sustainable officer. She believes that fusion is a long-term investment.

Nakagawa said that "over the past three to four years you have seen different types of milestones be met by other companies, including Helion, in the fusion area." There's a lot optimism that this is the moment when fusion comes to fruition within this decade or soon after. (Reporting and editing by Christian Schmollinger in San Francisco, with Stephen Nellis reporting from San Francisco)

(source: Reuters)