Realta Fusion and Commonwealth Fusion Systems Form Strategic Partnership on HTS Magnets
Realta Fusion and Commonwealth Fusion Systems announced a long-term strategic partnership under which CFS will design and manufacture high-temperature superconducting magnets for Realta’s magnetic mirror fusion systems, covering demonstration prototypes through commercial power plants in a deal the companies said could reach multi-billion dollar value. The partnership formalizes a relationship that dates to 2020, when ARPA-E funded the University of Wisconsin-Madison’s WHAM experiment, for which CFS supplied the HTS magnets that achieved record magnetic field strength in a mirror device. Realta, one of eight companies selected for DOE’s Milestone-Based Fusion Development Program, is targeting commercial plant launches by the mid-2030s.
nT-Tao Shares Q1 2026 Progress on Compact Fusion Development
Israeli compact fusion company nT-Tao reported a busy first quarter, highlighted by its C3 prototype reaching first plasma just over two months from the start of assembly. The company also completed integration testing of an in-house pulsed power driver and finished a full upgrade of its magnetic diagnostics suite, which will feed data into AI-driven analysis pipelines. nT-Tao is evaluating four potential sites for a new facility as it moves toward larger-scale systems, and has been making the case that compact fusion modules could serve as distributed baseload power for data centers, industrial clusters, and remote infrastructure rather than feeding centralized grids, with the grid itself evolving into a backup layer rather than the backbone.
Stellarators Emerge as Leading Fusion Energy Contenders
Physics Today reports that stellarators, once overshadowed by tokamaks, are gaining significant momentum as fusion energy candidates. Thea Energy became the first of eight companies in DOE’s Milestone-Based Fusion Development Program to complete an early design review, and two of the program’s eight awardees are pursuing stellarator concepts. The technology’s key advantage is that it does not require an internal plasma current, eliminating the disruption risk that remains a persistent challenge for tokamaks. Advances in computational optimization and HTS magnet manufacturing have made stellarator designs that were previously too complex to build increasingly practical, with Thea Energy’s prototype scheduled to be operational by 2030.
New Mexico Advances Fusion-Inclusive Clean Energy Policy in 2026 Session
New Mexico’s 2026 legislative session produced targeted clean energy progress despite a short, budget-focused calendar, with fusion energy playing a notable role. Lawmakers passed HB 154, which updates the state’s Advanced Energy Equipment Tax Credit to include a state-defined list of qualifying technologies, including fusion, while removing reliance on federal tax credits. The Clean Air Task Force, which supported the bill, said interest in fusion helped drive the legislation and cited its 2025 report on state policy options for fusion deployment as a factor. The session also allocated $10 million each for geothermal development and grid modernization.
Siemens Energy Positions Itself as Industrial Partner Across the Fusion Sector
Siemens Energy is expanding its role as an industrial partner to the fusion sector, working with multiple startups and participating in government-backed research as fusion moves from laboratory science toward power plant design. The company has maintained a technical and industrial partnership with Munich-based Marvel Fusion since 2020 and joined its Series B funding round in 2025, while also leading KONZEPT, a German Federal Ministry-funded project launched in early 2026 to conceptually design and assess a laser-driven inertial fusion power plant under the country’s Fusion 2040 program. Siemens Energy is also a partner in ReFus, a German research project focused on developing a regulatory framework for future fusion facilities. The company’s chief technology expert, Maximilian Fleischer, noted that the sector is moving from research interest toward active industrial participation.
DOE Opens $293 Million Genesis Mission to Accelerate AI-Driven Fusion and Energy Research
The U.S. Department of Energy has published a request for applications under its $293 million Genesis Mission, inviting interdisciplinary teams to deploy AI against more than 20 national science and energy challenges, several targeting fusion commercialization directly. Fusion-specific challenge areas include plasma control, materials degradation prediction, and pathway-to-commercialization modeling across six interdependent domains from structural materials to plant engineering. Phase I applications and Phase II letters of intent are due April 28, with full Phase II proposals due May 19.
The Fusion Decathlon: Putting It All Together
A fusion power plant isn’t one hard problem. It’s ten. The Fusion Decathlon introduces a new framework for evaluating the field: ten events every fusion company must master before putting electricity on the grid. The scoreboard is already running.
Welcome to Inertia Enterprises!
Inertia Enterprises, co-founded by laser fusion veteran Mike Dunne, is taking a deliberate approach to commercializing the only fusion method that has achieved energy gain. With $450 million in funding, the company is pairing mass-manufactured targets with efficient diode-based lasers and leaning on proven power conversion technology rather than unproven alternatives.
