UK Power Networks employs robot for tunnel inspections

The robot, named Spot and about the size of a Labrador, is being used on the underground power network in London, and east and south-east England.

The remote-controlled robot gathers camera footage and thermal imaging, which is then combined with a new machine-learning platform using historical data to make sure underground cables remain reliable, and also assess how quickly the infrastructure’s condition changes.

In the first UK trial Spot was equipped with lights, cameras and advanced thermal imaging sensors to capture data.

Initial results revealed the robot could halve maintenance inspection times where staff work in confined spaces

Spot was supplied by US firm Boston Dynamics and the project has been supported by Arup, whose new web platform includes a machine-learning interface to analyse the condition of tunnels and equipment with a high degree of accuracy.

Ian Cameron, UK Power Networks’ director of customer service and innovation, said staff safety was the company’s top priority.

“The application of Spot alongside Arup’s digital interface has proven to be a massive success and could significantly reduce the risk to staff during tunnel and shaft inspections,” he said.

“This is cutting-edge technology, allowing us to focus on other areas of the network and potentially saving our customers money in the process.”

There are 47 tunnels across UK Power Networks’ operating areas and each year more than 160 tunnel inspections are carried out, costing over £1m.