Measuring Progress: The Story Behind Fusion’s March to Breakeven

In this episode, Sam Wurzel discusses his career journey from plasma physics to co-founding the electronic component search engine Octopart, and his eventual return to the fusion industry to develop better methods for measuring scientific progress. Wurzel details the approach to a peer-reviewed paper that analyzes decades of fusion experiments against the Lawson criteria, utilizing the "triple product" - ion temperature, density, and energy confinement time - as a unified metric for tracking incremental progress toward net energy gain. The discussion highlights how this transparency has helped investors allocate capital more effectively, inspired students to join the field, and encouraged fusion companies to share more scientific data. Looking forward, Wurzel introduces Fusion Energy Base, a comprehensive digital clearinghouse designed to accelerate the ecosystem through a company database, jobs board, and interactive simulators.https://www.fusionenergybase.comLinks to papers: https://doi.org/10.1063/5.0083990https://doi.org/10.1063/5.0297357About the guestSam Wurzel is the founder of Fusion Energy Base, a website dedicated to providing comprehensive information on organizations advancing fusion energy and its supply chain. From 2021 to 2024, Sam served as a Technology-to-Market Advisor at ARPA-E and co-lead of the U.S. Department of Energy’s Fusion Crosscut Team, where he facilitated the commercialization of ARPA-E-funded projects and contributed to the development of the Milestone-Based Fusion Development Program. Prior to this, he co-founded and served as CEO of Octopart, a search engine for electronic components. Sam studied experimental plasma physics in graduate school at the University of Colorado at Boulder.