BREAKING NEWS: Scientists at the Idaho National Laboratory (INL) have just announced a monumental breakthrough in nuclear energy. They have initiated full-scale production of enriched fuel salt for the Molten Chloride Reactor Experiment (MCRE), marking the first time in history that chloride-based molten salt fuel has been produced for a fast reactor.
“This is a major milestone for American innovation and a clear signal of our national commitment to advanced nuclear energy,” stated Bill Phillips, technical lead for salt synthesis. The MCRE project is a collaborative effort involving Southern Company, TerraPower, CORE POWER, and the U.S. Department of Energy, aimed at demonstrating advanced nuclear technologies that could revolutionize energy production.
Operations are anticipated to begin as soon as 2030, at the Laboratory for Operation and Testing in the United States (LOTUS) test bed, currently under construction by the DOE’s National Reactor Innovation Center at INL. Unlike traditional reactors that rely on solid fuel rods and water, molten salt reactors utilize liquid fuel—a mixture of salts containing fissile material—enabling higher operating temperatures, improved fuel efficiency, and enhanced safety.
“The implications for the maritime industry are significant,” highlighted Don Wood, senior technical advisor for MCRE. “Molten salt reactors could provide ships with highly efficient, low-maintenance nuclear power, significantly reducing emissions while enabling long-range travel.”
The production of fuel salt began in 2020, with a target of converting 90% of uranium metal into uranium chloride to yield 18 kilograms of fuel salt per batch. Initial attempts fell short, achieving only 80% conversion. However, in a remarkable breakthrough in 2024, a conversion rate of 95% was achieved, allowing the team to produce a batch in as little as one day. The first batch of fuel salt was delivered at the end of September, with plans to produce four additional batches by March 2026.
“This milestone accelerates the completion of MCRE, unlocking a new era of nuclear propulsion for a revitalized U.S. merchant shipping fleet,” mentioned Mikal Boe, CEO of CORE POWER. The momentum behind the MCRE aligns with national goals set forth in a 2025 executive order by former President Donald J. Trump, aimed at advancing nuclear energy as a critical component of the U.S. energy strategy.
As the promise of nuclear power becomes increasingly clear, national policy is evolving to support this momentum. “The administration implemented executive orders in May of this year to jumpstart America’s nuclear energy industrial base,” said Jess Gehin, INL’s Associate Laboratory Director for Nuclear Science & Technology.
The MCRE is poised to not only advance U.S. energy independence but also solidify its position as a leader in next-generation nuclear innovation. “This milestone isn’t just about producing fuel—it’s about proving that the U.S. can lead in next-generation nuclear innovation,” noted James King, MCRE project director.
As developments unfold, the implications of this breakthrough will resonate across various industries, shaping the future of energy and maritime travel. This is just the beginning of what promises to be a transformative journey in nuclear energy. Share this groundbreaking news now!
