Photo Credit: Helion
EVERETT, Wash. – Feb. 13, 2026 – Helion, a Washington-based fusion energy company, announced that 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). Both milestones mark significant breakthroughs in Helion’s vision to make commercially viable fusion energy a reality and are firsts for the private fusion industry.