Fusion energy facilities are challenging environments, with high radiation, extreme temperatures, and vacuum-level pressures
Autonomous robotic dogs have been deployed for maintenance tasks at one of the world’s largest fusion energy research facilities in the UK. The 35-day trial, conducted by the UK Atomic Energy Authority (UKAEA), has shown that these robots can improve safety and efficiency in such high-risk environments while being cost-effective.
“This is the first time an autonomous robot has been deployed in fusion facilities for a long period of time,” said Robert Skilton, head of robotics research and technology at the Atomic Energy Authority. “It established the reliability of robotic technology and how autonomous robots can be deployed safely inside fusion facilities.”
Fusion energy facilities are challenging environments, with high radiation, extreme temperatures, and vacuum-level pressures. Using autonomous robots allows for regular maintenance inspections without putting human workers at risk. The trial showcased how the robots, unaffected by the harsh conditions, could enhance operational efficiency while minimizing danger to personnel.
“These robots are not affected by the challenging conditions that fusion energy facilities present, making them an ideal solution for improving efficiency while reducing risks to human operators,” Skilton added.
The robots were tasked with performing inspections and routine maintenance throughout the facility, demonstrating their reliability in these demanding settings. The trial is part of a broader initiative to develop advanced technologies for maintaining future fusion power plants, which are expected to be key in the global energy transition.
“This work was about developing and demonstrating technology to help solve some of the fundamental challenges of maintaining future fusion power plants,” said Skilton. “It was about showing what’s possible today and building trust and confidence in the use of autonomous robotics for inspecting fusion facilities.”
Fusion energy, which powers the sun, involves fusing two atoms to create a larger atom, releasing vast amounts of energy. It holds the potential to provide nearly limitless, clean energy. However, making fusion commercially viable remains a challenge, as current reactors consume more energy than they produce.
While fusion is not yet commercially feasible, innovations like the use of autonomous robots are helping reduce costs and improve safety, bringing the technology closer to becoming practical. Experts believe that continued advancements in robotic systems could help accelerate fusion energy’s timeline for widespread adoption.
Though fusion energy may not become a dominant part of the energy mix until 2050, these autonomous robots are helping researchers make incremental progress toward the goal of cleaner, more efficient energy production.

