Helion Reaches 150 Million Degree Plasma Milestone
In late June 2026, Helion Energy announced its Trenta prototype reached plasma temperatures exceeding 150 million degrees Celsius after more than 14,000 high-power shots. The company says the achievement advances its field-reversed-configuration (FRC) pulsed approach and informs Polaris, a seventh-generation system intended to demonstrate net electricity by 2028 under a Microsoft power-purchase agreement. The milestone addresses temperature challenges but not yet net energy.
Key Points
- 1Reached 150 million °C in Trenta prototype, surpassing previous 100 million °C benchmark and 14,000 shots
- 2Demonstrates FRC pulsed approach viability and supports D–He3 fuel cycle with lower neutron production
- 3Impacts commercialization by advancing Polaris design and Microsoft power-purchase timetable for electricity by 2028
Scoring Rationale
Major verified prototype temperature milestone with industry funding and timelines; limited by lack of net-energy demonstration.
Sources
Public references used for this report.
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