Energy networks take to the sky with BVLOS project

A landmark new project is paving the way for utility companies to use drones to inspect their network infrastructure for the first time.

The large-scale project is working across electricity and gas networks and is coordinated by international innovation scout the Energy Innovation Centre (EIC). The three-year programme is being led by Wales & West Utilities in collaboration with Cadent, National Grid Gas Transmission, Northern Gas Networks, Northern Powergrid, Scottish & Southern Electricity Networks and UK Power Networks.

A UK first and a designated government Pathfinder project, this initiative will work with UK aviation regulation the Civil Aviation Authority (CAA) to explore how the application of drone technology could transform the way the industry carries out essential maintenance tasks.

The aerial inspection of network infrastructure is a costly necessity for the UK’s gas and electricity network operators and usually involves the deployment of piloted helicopters or the use of scaffolds and cherry pickers.  Drones, however, are fast becoming a viable, safer and cheaper alternative for getting this job done, with the potential to revolutionise the way critical infrastructure is maintained.

To fully realise the benefits that drones can bring to routine network tasks such as pipeline or overhead line inspections, there is a requirement to fly ‘beyond visual line of sight’ (BVLOS).  Up until now, drones have only been able to fly ‘within visual line of sight’, a distance of some 500 metres from the control operator. Flying drones BVLOS means greater distances can be covered, challenging terrains can be accessed more easily and inspections can be mobilised more quickly.

The CAA has stated that their regulations would support the flying of drones BVLOS but there is currently no acceptable means of compliance for ‘business as usual’ BVLOS operations.  This project will focus on the creation of a comprehensive operational framework, including safety cases for specific network operations, that has been approved by the CAA.

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