British inertial fusion energy developer First Light Fusion has presented the first commercially viable, reactor-compatible path to 'high gain' fusion, which it says would drastically reduce the cost of what the company says is a limitless clean energy source. In its white paper published today, First Light Fusion (FLF) outlines a novel and scientifically grounded approach to fusion energy called FLARE – Fusion via Low-power Assembly and Rapid Excitation. "This is a pivotal moment not just for First Light, but for the future of energy," said First Light Fusion CEO Mark Thomas. "With the FLARE approach, we've laid out the world's first commercially viable, reactor-compatible pathway to high gain inertial fusion - and it's grounded in real science, proven technologies, and practical engineering. First Light Fusion was founded by Yiannis Ventikos of the Mechanical Engineering Department at University College, London, and Nicholas Hawker, formerly an engineering lecturer at Lady Margaret Hall, Oxford.