This Week’s Fusion News: October 24, 2025

by | Oct 24, 2025 | This Week's Fusion News

Things You Gotta Know

California Enacts SB80 to Accelerate Fusion Development and Cement State’s Leadership
California signed Senate Bill 80 into law, establishing the Fusion Research and Development Innovation Initiative and creating a dedicated fund to accelerate fusion breakthroughs and commercialization, building on the state’s leadership as home to both the DIII-D National Fusion Facility and Lawrence Livermore’s National Ignition Facility. General Atomics emphasized that San Diego is uniquely positioned to become a fusion hub, having recently collaborated with UC San Diego to launch the San Diego Fusion Data Science and Digital Engineering Center that leverages AI and high-performance computing to accelerate innovation. The legislation represents California’s declaration of intent to transform scientific progress into commercial power generation, with stakeholders asserting that “the nation that realizes fusion first will define the energy future of humankind.”

Clean Air Task Force: DOE Roadmap Requires Matching Federal Investment to Succeed
Clean Air Task Force welcomed the DOE’s Fusion Science and Technology Roadmap as an important signal of U.S. commitment to fusion leadership but warned that verbal commitments must be backed by concrete funding or other countries will fill the gap and the U.S. will cede global leadership. CATF Director Sehila Gonzalez emphasized that achieving the roadmap’s ambitious Build-Innovate-Grow vision requires the federal government to substantially increase funding to pursue all three pillars in parallel, with the organization recommending a $10 billion one-time appropriation to support public infrastructure buildout. The roadmap’s priorities align with CATF’s recommendations to “Unlock Public Sector Resources to Unleash Private Sector Dominance,” but experts stress that without dedicated appropriations matching the mid-2030s commercialization timeline, the roadmap risks becoming another unfulfilled aspirational document.

Japan’s New Prime Minister Prioritizes Nuclear Including Fusion in Energy Security Strategy
Japan’s newly elected Prime Minister Sanae Takaichi is expected to accelerate nuclear power revival including next-generation fusion energy to combat inflation and reduce the country’s costly fuel imports, which totaled $71 billion last year with fossil fuels covering 60-70% of electricity generation. Takaichi, an advocate for achieving 100% energy self-sufficiency through advanced nuclear technologies, appointed Ryosei Akazawa as trade and industry minister signaling willingness to engage with Washington on LNG purchases while reducing dependence on solar panels imported from China. Japan’s June 2025 revision to the Fusion Energy Innovation Strategy positions fusion industrialization as the core vision with aims to achieve world-leading technological development by the 2030s, though reactor restarts face years-long regulatory hurdles and require local government support among the country’s 33 operable units.

Trump’s Fusion Roadmap Emphasizes AI Integration But Lacks Specific Funding Commitments
The Trump administration’s Fusion Science and Technology Roadmap positions fusion as essential for powering AI data centers’ escalating energy demands by the mid-2030s, emphasizing advanced research in high-performance computing and AI to optimize reactor designs through the Build-Innovate-Grow framework. However, critics point to the absence of detailed funding mechanisms or immediate budget allocations, with industry experts warning the roadmap risks joining the field’s history of overpromises without dedicated congressional appropriations to match the bold timeline. The plan’s light touch on specifics such as exact pilot plant milestones and regulatory reforms has drawn skepticism, though Trump officials counter that private investment spurred by AI power demands combined with the roadmap’s emphasis on workforce development and international collaboration will fill funding gaps and potentially lead to breakthroughs by 2035.

Tokamak Energy Releases Stunning Footage of Plasma Reaching Temperatures Hotter Than Sun’s Core
British fusion company Tokamak Energy released high-speed color camera footage from its ST40 tokamak showing hydrogen plasma swirling at temperatures exceeding the sun’s core while confined in powerful magnetic fields, with visible light captured only from the plasma’s edge as the core burns too hot to emit in the visible spectrum. The dramatic footage, which includes dazzling displays of lithium grain injection turning from brilliant red to bright green halos as ionization occurs, serves critical diagnostic purposes for scientists identifying whether gaseous impurities radiate at expected locations and whether lithium powders penetrate to the plasma core. Physicist Laura Zhang emphasized that the color camera technology helps researchers immediately assess experimental conditions, though achieving practical fusion power that produces more energy than it consumes remains a significant challenge requiring continued scientific advancement beyond these visually spectacular demonstrations.

The Future of Renewable Energy in the US vs. The Rest of the World

Despite policy rollbacks under the Trump Administration, global solar deployment hit record levels in 2025. China alone installed more solar capacity than the rest of the world combined, while the U.S. dropped to third place behind India. This analysis examines why solar energy continues its explosive growth worldwide, the impact of changing U.S. policies, and what this means for the future of renewable energy and fusion power development.

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