Balerion Advisor Doug McAdams sits down with Brian Berzin, Co-Founder & CEO of Thea Energy, to discuss stellarator fusion. Thea Energy is developing a planar-coil stellarator architecture spun out of Princeton Plasma Physics Lab. The company is focused on making fusion practical for utility-scale power generation by shifting stellarator complexity from precision hardware into software-controlled magnet arrays.

Timestamped Overview

00:00 – Introduction to Brian Berzin and Thea Energy

00:35 – Brian’s background in engineering, finance, venture, and fusion

02:33 – Fusion as an energy investment thesis

04:35 – Commercial fusion as utility-scale power generation

05:53 – Why fusion matters for energy, safety, geopolitics, and prosperity

11:19 – The shift from laboratory fusion science to commercial engineering

15:43 – Princeton Plasma Physics Lab, David Gates, and the origins of Thea Energy

17:52 – Why stellarators differ from tokamaks

20:54 – The planar-coil stellarator breakthrough

22:23 – Thea’s 300+ magnet array and software-controlled plasma shaping

24:34 – Using software control to handle variability, wear, and long-term plant operation

28:38 – Series A progress, magnet iteration, and hardware development

31:49 – Superconducting magnet arrays, field precision, and DOE milestone work

34:37 – AI, machine learning, and control systems for fusion optimization

40:41 – Fuel choice and the case for deuterium-tritium fusion

43:32 – Neutron capture, blankets, tritium breeding, and power conversion

46:22 – Roadmap to EOS, Helios, and first-half-2030s grid power

50:50 – Manufacturing scale-up and building fleets of fusion power plants

52:06 – Practicality, cost of electricity, and scaling fusion within the power industry

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