Construction on Belgium\u2019s MYRRHA research reactor in Mol has been temporarily paused, according to reporting confirmed by a spokesperson for Energy Minister Mathieu Bihet and by MYRRHA IVZW, the body overseeing the project. <\/p>\n\n\n\n
The stop comes less than two years after the June 2024 groundbreaking for the first phase, known as MINERVA.<\/p>\n\n\n\n
Why should anyone outside the nuclear world care? Because MYRRHA is being pitched as an environmental tool as much as a science project, and it sits at the crossroads of waste management, advanced tech<\/a>, and the everyday reality of cancer diagnostics that depend on radioisotopes.<\/p>\n\n\n\n So what is MYRRHA, exactly? MYRRHA (Multi-purpose Hybrid Research Reactor for High-tech Applications) is designed as an accelerator-driven system<\/a> where a particle accelerator sends protons into a target to create neutrons that sustain fission in a reactor core that stays subcritical on its own.<\/p>\n\n\n\n That subcritical design is not just a technical flex. The IAEA notes that if the accelerator stops, the chain reaction stops, and the facility is designed so decay heat can be removed by natural circulation without active systems.<\/p>\n\n\n\n Radioactive waste is a problem mostly because it lasts longer than any human institution. The IAEA explains that un-reprocessed spent fuel can remain radiotoxic above natural uranium ore levels for roughly 300,000 years, and waste containing minor actinides can still require about 10,000 years to return to natural levels.<\/p>\n\n\n\n MYRRHA\u2019s core mission is to demonstrate transmutation<\/a> of those minor actinides at engineering scale. In the IAEA\u2019s description, reducing radiotoxicity could cut high-level waste volume by about 99% and reduce the storage timeline to around 300 years, but only if the technology works as intended at scale.<\/p>\n\n\n\n The pause matters because MINERVA is not a placeholder. A CERN-hosted overview describes it as a 100 MeV accelerator with two target stations, including an ISOL system linked to radioisotopes and a Full Power Facility aimed at fusion materials research<\/a>.<\/p>\n\n\n\n This is also where the business math shows up. The same project material outlines \u20ac558 million ($648 million) budgeted for the first phase, including \u20ac287 million ($333 million) for MINERVA construction from 2019 to 2027, alongside additional funding for design work and operations through 2038.<\/p>\n\n\n\n A Belgian press roundup dated May 8, 2026 reported that construction is \u201cstopped,\u201d with confirmation attributed to the minister\u2019s spokesperson and to MYRRHA IVZW. In separate reporting, MYRRHA IVZW has tied the delay to a federal reevaluation of Belgium\u2019 nuclear strategy<\/a> and sector funding, while stressing it is not a cancellation.<\/p>\n\n\n\n The stakes are big enough to make any finance ministry flinch. Public descriptions put the overall MYRRHA project estimate around \u20ac1.6 billion ($1.86 billion) and still point to full operation around 2038, so even a short pause can ripple through contracts, supply chains, and hiring plans.<\/p>\n\n\n\nA reactor powered by a particle accelerator<\/h2>\n\n\n\n
Also Read: A ship has been modified to carry a 150-ton nuclear fuel flask, and the engineering behind the cargo is almost hard to believe\u00a0<\/a><\/h4>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n
The environmental argument is about time<\/h2>\n\n\n\n
MINERVA is the first build, and the hard one<\/h2>\n\n\n\n
Also Read: California\u2019s batteries just discharged power equal to 12 nuclear plants, and the grid lesson is brutal for fossil fuels<\/a><\/h4>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n
Why the pause happened<\/h2>\n\n\n\n