Record high fusion plasma temperature achieved to help clean energy goal

Source: interestingengineering
Author: @IntEngineering
Published: 2/14/2026
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Read original articleHelion, a Washington-based private fusion energy company, has achieved two significant industry firsts: demonstrating measurable deuterium-tritium (D-T) fusion and reaching plasma temperatures of 150 million degrees Celsius. These milestones mark critical progress toward Helion’s goal of making commercially viable fusion energy a reality. The company’s approach emphasizes rapid iteration and learning, having built and operated seven prototypes, with the latest, the Polaris prototype, being the first private fusion machine to use D-T fuel and receive regulatory approval to handle tritium for fusion demonstration.
Helion’s recent achievements validate its ability to operate and scale fusion across multiple fuels, with ongoing tests aimed at reaching optimal temperatures for deuterium-helium-3 fusion, the fuel intended for commercial operations. Experts in the field, such as Dr. Alan Hoffman, recognize Helion’s advances as a continuation of decades of fusion research, highlighting the potential for plasma energy recovery to enable commercial-scale fusion. Building on this momentum, Helion
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energyfusion-energyplasma-temperaturedeuterium-tritium-fusionclean-energycommercial-fusionHelion