China is accelerating the use of robotics in one of its most critical systems: the national power grid. China’s state-owned State Grid Corporation has outlined plans to invest about $1 billion (about 6.8 billion yuan) to buy about 8,500 robots, with deployment expected on a large scale by 2026. These machines will aid in inspection and maintenance in substations and transmission networks, including in remote or hazardous environments. The move reflects a broader effort to improve efficiency, security and reliability in power distribution as demand grows, while also advancing China’s ambitions in industrial robotics and AI-enabled infrastructure.
What’s included in China’s $1B robot rollout
The planned fleet includes a mix of machine types already being tested or deployed in grid operation. Quadruped robots, often called robot dogs, are designed for patrolling and inspection in challenging terrain and large substations. Wheeled robots equipped with robotic arms are being developed for controlled maintenance work requiring precise operations. Humanoid robots are also part of the broader approach, although they remain in limited and largely experimental roles. Domestic companies like Unitri Robotics, Deep Robotics and UBTech Robotics are contributing to the development of these systems. Current deployments still focus primarily on inspection rather than complex repair work, especially in structured substation environments.
What are these robots designed to do
Grid robots are used to support routine and high-risk operations within the electricity network. They can detect defects using thermal imaging and other sensors, monitor equipment condition, and identify anomalies that may not be immediately visible to human inspectors. They are also deployed to inspect transmission lines in mountainous or inaccessible areas, reducing the need for personnel to enter hazardous locations. In controlled settings, some robots can perform basic, repetitive maintenance tasks. These functions are already being tested in a number of areas and are helping to reduce reliance on manual inspections where the risks are greatest.
change the way of working
Despite the scale of the rollout, the robots are not expected to replace human maintenance workers. Their role is to complement the existing workforce by reducing the risk of hazardous situations, improving consistency in inspections and enabling faster fault detection in large networks. Human technicians are essential for complex repairs, system-level decisions, and emergency management. This shift represents an evolution in the way work is done, with machines handling specific tasks while people retain overall control.
Why is China investing heavily in grid automation?
China operates one of the largest and most complex electricity networks in the world, spanning vast geographic areas that include remote and difficult terrain. Maintaining this system presents significant logistical challenges, especially as electricity demand continues to grow due to the increasing energy needs of industrial expansion, urbanization and digital infrastructure. The development of ultra-high-voltage transmission systems has further increased this complexity. Robotics offers a practical way to improve efficiency, reduce risk, and enable more consistent monitoring across the network.
A push into industrial robotics
The Grid Automation initiative is part of a broader national strategy to expand capabilities in robotics and artificial intelligence. Industrial environments such as power networks provide structured conditions suitable for automation and generate continuous operational data that can be used to refine AI systems over time. Large-scale deployment in such settings allows companies and state operators to develop technologies beyond laboratory conditions, accelerating their practical application.
What does this mean for the future of power systems
China’s approach highlights how critical infrastructure is becoming a testing ground for robotics and AI technologies. While full automation of power grids is still away, the increased use of machines for inspection and routine maintenance is likely to impact the way utilities operate globally. The change is gradual, with robots playing defined roles within existing systems, improving efficiency and safety while human oversight remains central.