The UK Atomic Energy Authority (UKAEA) has announced that Commonwealth Fusion Systems (CFS) has become the first international company to join its flagship Lithium Breeding Tritium Innovation (LIBRTI) programme, marking a significant step forward in global fusion research. The collaboration will focus on advancing tritium production, one of the biggest technical challenges facing commercial fusion power. Through the partnership, UKAEA and CFS will develop and test technologies designed to enable future fusion power plants to generate their own supply of tritium fuel. The agreement also strengthens international collaboration in fusion innovation, with CFS contributing to experiments at the new LIBRTI facility under construction at UKAEA’s Culham Campus. The programme is intended to demonstrate net tritium production, a milestone considered essential for the long-term viability of fusion energy. Commenting on the partnership, Amanda Quadling, Senior Responsible Officer, LIBRTI, said: “Welcoming CFS is a defining moment for LIBRTI. Their participation adds momentum to our own efforts and accelerates the global pathway to demonstrated fusion power plant-scale technology.” Why tritium production is essential Tritium is a radioactive form …