The Fusion Energy Race: ITER to KSTAR — 2026-09-10
This week, the fusion sector saw significant momentum in AI-driven tooling and international industrial partnerships, with former Google DeepMind alumni launching "Fusionality" to accelerate grid-ready fusion systems. Meanwhile, South Korea's KSTAR program is deepening its collaboration with European agencies to validate long-duration plasma operations, signaling a shift toward commercial readiness metrics.
The Fusion Energy Race: ITER to KSTAR — 2026-09-10
Top developments

Former DeepMind Alumni Launch "Fusionality" for Grid Integration
On September 8, 2026, TechCrunch reported that alumni from Google DeepMind have founded a new company, Fusionality, to develop control systems and simulation environments specifically designed to help fusion power startups accelerate their path to the grid. This move highlights the growing intersection of advanced AI/ML control systems and magnetic confinement fusion, aiming to reduce the iteration time for startups like Commonwealth Fusion Systems (CFS) and Helion by providing robust digital twin infrastructure.
KSTAR and EU Agencies Jointly Validate Long-Duration Operations
The Korea Institute of Fusion Energy (KFE) announced a formal collaboration with nuclear fusion research institutions in France, Italy, Germany, and Finland to jointly verify long-time driving technologies for future reactors. This partnership leverages the KSTAR superconducting tokamak's capabilities, particularly following its recent upgrades involving tungsten internal components, to test scenarios critical for the ITER deuterium-tritium phase and subsequent DEMO plants. The initiative underscores the global consensus that plasma endurance, not just temperature, is the next major hurdle.
KEPCO Engineering Expands Fusion Business via Startup Partnership
On September 7, 2026, Korean power utility giant KEPCO Engineering & Construction Co., Ltd. signed a memorandum of understanding with Enable Fusion, a specialized fusion startup, at the Daejeon Science Center. This agreement marks a significant step in integrating traditional nuclear engineering firms into the private fusion supply chain, focusing on expanding participation in fusion energy business projects. This move suggests that established utilities are beginning to hedge their bets on fusion commercialization timelines by securing early vendor positions.

Local view
South Korea: Local media outlets like Seoul Economic Daily and Daegu Shinmun are framing these developments as Korea's strategic pivot from pure research to industrial application. The focus is on how KFE's international partnerships can secure a role in the global supply chain for future commercial reactors, moving beyond the "artificial sun" prestige to tangible economic benefits through companies like KEPCO.
India: The New Indian Express published a feature on September 8, 2026, titled "The race to unlock near-limitless fusion energy," which contextualizes global efforts like ITER and private startups against India's own ambitions. The article highlights the urgency of achieving net energy gain to meet growing global electricity demands, noting the competitive pressure from China's EAST and BEST tokamaks.
Context & numbers
While no new major funding rounds were announced this week, the sector's capitalization remains high. As of August 2026, 17 fusion startups have crossed the $100 million funding mark, with total private investment reaching approximately $7.1 billion. Commonwealth Fusion Systems (CFS) remains the leader with $3.94 billion raised to date, following a $1 billion round closed in July 2026. These figures provide the financial backdrop for the new tooling and partnership announcements this week.
On the radar
- ITER Council Meeting (November 2026): The ITER Organization Council has requested a detailed proposal for the updated schedule extending through nuclear (deuterium-tritium) operation, with adoption expected at the next meeting in November. Stakeholders should watch for finalized cost and timeline baselines.
- KSTAR Tungsten Upgrade Experiments: Following the component replacement, KSTAR is entering a critical phase of plasma experiments designed to validate the performance of tungsten divertors under long-pulse conditions, a key technology for ITER and DEMO.
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