Private Fusion Breakthrough: Helion's Polaris Hits 150M°C

Helion announced Polaris reached 150 million degrees Celsius with D-T fusion on Feb 13, 2026.
Polaris uses field-reversed configuration in an hourglass chamber to magnetically accelerate plasmas and harvest electricity.
Plasmas are compressed to 150 million degrees in under a millisecond in the Polaris prototype.
Helion claims D-T results and 150M°C are firsts for private fusion, validating its commercial path.
Helion is building Orion for Microsoft and refining helium-3 fuel production.
Targeting 200 million degrees Celsius amid competition and investor interest.

Private Sector | Fusion Technology | Energy Innovation

2 weeks ago