Orion: Polaris prototype: measurable deuterium-tritium fusion and 150 million °C plasma temperature, as claimed by Helion; a plasma result, not electricity (testing reported)

What was reported

its Polaris prototype has set new fusion industry benchmarks, becoming the first privately developed fusion energy machine to demonstrate measurable deuterium-tritium (D-T) fusion and achieve plasma temperatures of 150 million degrees Celsius (MºC).Regulator, government, developer and customer statements named in the Project Ledger · Helion Energy statement · Feb 13, 2026 · Open the source ↗

What the evidence supports

That Helion Energy, the project's developer, published the quoted statement. It records "testing reported" for Polaris prototype: measurable deuterium-tritium fusion and 150 million °C plasma temperature, as claimed by Helion; a plasma result, not electricity under technical milestones only.

What remains unknown

Test results stay attributed to whoever reported them. Performance at commercial scale, sustained output or independent confirmation, unless the quoted passage states them.

Source passages

Exact excerpts from the source, with links. Quotes are checked character for character against our stored copy.

Helion Energy statementits Polaris prototype has set new fusion industry benchmarks, becoming the first privately developed fusion energy machine to demonstrate measurable deuterium-tritium (D-T) fusion and achieve plasma temperatures of 150 million degrees Celsius (MºC).Regulator, government, developer and customer statements named in the Project Ledger · Helion Energy statement · Feb 13, 2026 · Open the source ↗

Revision history

1. Revision 1 · Nov 11, 2026, 21:14 UTC

   Orion: Polaris prototype: measurable deuterium-tritium fusion and 150 million °C plasma temperature, as claimed by Helion; a plasma result, not electricity (testing reported)

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