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Helion Energy's Fusion Reactor Hits 150 Million Degrees!

2/13/2026

Summary

Story summary

Helion Energy, based in Everett, Washington, announced that its Polaris fusion reactor reached 150 million degrees Celsius.
The achievement makes Helion the first private venture to test fusion with tritium.
CEO David Kirtley said these advancements move the race for commercial fusion power.
Helion aims to produce electricity directly from fusion using a deuterium-helium-3 fuel mix.
It is building the Orion reactor to satisfy a Microsoft electricity contract by 2028.

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Story summary

Helion Energy, based in Everett, Washington, announced that its Polaris fusion reactor reached 150 million degrees Celsius.
The achievement makes Helion the first private venture to test fusion with tritium.
CEO David Kirtley said these advancements move the race for commercial fusion power.
Helion aims to produce electricity directly from fusion using a deuterium-helium-3 fuel mix.
It is building the Orion reactor to satisfy a Microsoft electricity contract by 2028.