This Week’s Fusion News: September 12, 2025
Things You Gotta Know
U.S. Energy Secretary Predicts Nuclear Fusion Will Power the Grid Within 15 Years
Energy Secretary Chris Wright made bold claims during a BBC interview, stating that artificial intelligence will enable the harnessing of nuclear fusion within five years, and the technology will power electricity grids worldwide in 8-15 years. Wright emphasized that AI advancements at national labs and private companies will accelerate multiple fusion approaches, positioning fusion as a major driver of greenhouse gas reductions. His timeline is significantly more optimistic than most scientists in the field believe.
DOE Announces $134 Million to Advance U.S. Fusion Leadership
The U.S. Department of Energy allocated $134 million in funding for two fusion programs, with $128 million designated for seven teams under the Fusion Innovative Research Engine (FIRE) Collaboratives program aimed at bridging the research-to-commercialization gap. The funding supports virtual teams focused on materials science, laser technology development, high-temperature superconducting magnet assessment, and AI-driven fusion modeling, with DOE expecting to invest up to $220 million total over four years pending congressional appropriations. Energy Secretary Chris Wright emphasized the investment as part of unleashing “the next frontier of American energy” under the Trump administration’s nuclear expansion goals.
Key Diagnostic System for ITER Experimental Reactor Nears Completion
The High Resolution Neutron Spectrometer (HRNS) for the ITER fusion reactor is approaching completion. HRNS is a critical diagnostic system designed to precisely measure neutron flux and energy from deuterium-deuterium and deuterium-tritium fusion reactions. This sophisticated diagnostic tool comprises four specialized subassemblies that will provide essential data for monitoring and optimizing fusion performance in the world’s largest experimental fusion facility. The completion of this key diagnostic system marks an important milestone in ITER’s preparation for initial plasma operations.
Fusion Investment Opportunities: 5 Public Company Pathways
While pure-play fusion stocks remain largely private, investors can gain exposure through five publicly traded companies with significant fusion investments and partnerships. Major players include Alphabet (GOOG, GOOGL), which invested in TAE Technologies and participated in Commonwealth Fusion Systems’ $863 million funding round while securing a 200MW power purchase agreement, and Microsoft (MSFT), which has backing agreements with both TAE Technologies and Helion Energy for fusion power delivery by 2028. Energy giants Chevron (CVX), Eni (E), and Cenovus Energy (CVE) are also positioning themselves in the fusion space through strategic investments in companies like CFS, General Fusion, and Zap Energy, offering traditional energy investors a pathway into the fusion revolution.
Fusion’s Funding Surge: A September Snapshot of Capital and Confidence
September 2025 has delivered a major jolt of momentum for the fusion sector. With over $900M in private raises, strategic tritium investments, and a €5.4B EU commitment, fusion energy is attracting capital across the full stack from plasma physics to fuel cycles. The commercial era is coming into focus.
What’s the Real Story on How Artificial Intelligence Can Help Stabilize the Utility Grid?
As data centers strain grid capacity, AI may be part of the solution. AI and machine learning can help utilities stabilize the grid, predict outages, integrate renewables, and improve energy storage utilization. Here are some best practices for deploying AI in critical infrastructure.
