Things You Gotta Know
Commonwealth Fusion Systems Signs Letter of Intent for Up to $85 Million CHIPS Award to Advance Semiconductors for Fusion Power Plants
Commonwealth Fusion Systems announced that it signed a letter of intent with the U.S. Department of Commerce for up to $85 million through the CHIPS Research and Development Office to develop semiconductors for fusion power plants. The proposed award would fund R&D on silicon carbide power electronics for magnet power supplies, solid-state radio frequency generators for plasma heating, AI applied to SPARC and ARC including a SPARC digital twin, faster control electronics, and radiation-hardened electronics for neutron-exposed systems. The letter is one of four totaling up to $389 million, alongside up to $175 million for Helion, up to $73 million for Vertical Semiconductor and up to $56 million for Sibelco.
Blue Laser Fusion Closes $34 Million Capital Raise and Alternative Public Offering to Advance Directed-Energy Defense and Fusion Energy
Blue Laser Fusion, founded by Dr. Shuji Nakamura, announced that it closed a financing and alternative public offering with total proceeds of $34 million, including an initial closing of $25 million in private placement units, completed concurrently with a reverse merger with Unite Acquisition 2 Corp. Laidlaw & Company (U.K.) Ltd. served as exclusive placement agent. The Goleta, California company plans to use the proceeds for directed-energy defense prototypes and field tests, including counter-drone and missile defense applications, along with pulsed-laser development for inertial confinement fusion and expanded manufacturing in Goleta. The company said it may close additional tranches of funding.
Helical Fusion and Germany’s Gauss Fusion Sign Joint Statement of Intent to Advance Stellarator Fusion Power Commercialization
Tokyo-based Helical Fusion and Munich-based Gauss Fusion announced a joint statement of intent to accelerate commercialization of Helical Stellarator and Modular Stellarator technologies through private-sector leadership. The statement is a non-exclusive, non-binding expression of shared intent, with each company keeping its independence in technology, business strategy and operations. The companies commit to develop, demonstrate and commercialize fusion energy, deepen dialogue drawing on Japanese and German research strengths, and share their vision with governments, research institutions, industry and investors. The initiative was referenced in an official bilateral document released for the Japan-Germany Leaders’ Meeting, and no financial terms or project timelines were disclosed. Helical Fusion, a spin-out of Japan’s National Institute for Fusion Science, runs the Helix Program targeting commercially viable fusion power in the 2030s with more than 30 industrial partners.
Proxima Fusion Signs HTS Tape MoU With Fujikura and Gyrotron MoU With Kyoto Fusioneering as Japan and Germany Deepen Fusion Ties
Proxima Fusion announced a memorandum of understanding with Japan’s Fujikura to jointly assess a manufacturing facility in Germany for high-temperature superconducting (HTS) tape, one of several Japan-Germany fusion agreements signed in Tokyo during German Chancellor Friedrich Merz’s visit to Japan. Fujikura would contribute its HTS technology and manufacturing know-how while Proxima contributes its long-term demand and technical requirements, starting with an evaluation of production in Lower Saxony, and Proxima anticipates needing about 20,000 km of HTS tape for its Alpha demonstrator and about 40,000 km for each planned Stellaris power plant. Proxima also signed an MoU with Kyoto Fusioneering to expand joint development of next-generation gyrotrons for plasma heating and fuel cycle technologies, with Kyoto Fusioneering contributing to Germany’s Fusion Hubs initiative. Kyoto Fusioneering separately signed an MoU with Darmstadt-based laser fusion developer Focused Energy to explore cooperation on fuel and target technologies, the tritium fuel cycle, materials for extreme conditions and diagnostics.
Is the AI Bubble Going to Burst, And If So When?
An AI bubble is the risk that enthusiasm and market forces push AI valuations and infrastructure spending beyond what future revenues and profits can justify, with exposure reaching the wider economy through capital markets and write-offs of AI-related corporate debt. Microsoft, Amazon, Google/Alphabet, Meta and Oracle have collectively added approximately $350B in debt obligations over the past five years to fund AI and data center infrastructure, and CoreWeave’s bonds have traded at yields of roughly 15% to 16%. Compared with the 2008 subprime mortgage crisis, a comparable systemic crisis would depend less on how far AI shares fall than on whether losses impair major lenders and disrupt funding markets.
Fusion Support Tech Part 6: Pulsed Power Systems and Impedance-Matched Marx Generators (IMGs)
The Fusion Report’s series on the critical supporting technologies for commercial fusion energy continues with pulsed power systems and impedance-matched Marx generators (IMGs). Pulsed power stores energy slowly and releases it in extremely short, high-power bursts, and it plays a role in both inertial and magnetic fusion machines. At the National Ignition Facility, the power-conditioning system stores up to roughly 400 MJ and supplies more than 34 kJ to each of nearly 8,000 flashlamps. IMGs are designed so their internal impedance matches the load, and IMG architectures can reach roughly 90% efficiency, versus about half that for conventional Marx systems that rely on additional pulse-compression hardware. Pacific Fusion’s Demonstration System, under construction in Albuquerque, would combine multiple IMG modules to deliver more than 60 MA to a centimeter-scale MagLIF target in a roughly 100-nanosecond pulse, and commercial viability depends on scaling from thousands of demonstration shots to millions of reliable, low-cost pulses.
