Fusion power is getting back to its roots. As fusion startups keep chasing their ultimate goal — putting electrons on the grid — many are also now embracing, or returning to, the defense applications that laid the foundation for the industry.
The sector emerged decades ago when physicists looked for more constructive uses of the science behind the thermonuclear bombs that proliferated during the Cold War. The national security angle never really went away. A groundbreaking fusion power experiment in 2022 happened at the National Ignition Facility, which has supported national security applications for more than 25 years.
