Heathrow Substation Outage: NESO Review

Debate between Luke Taylor and Roger Gale

Wednesday 2nd July 2025 Commons Chamber

[Mr Deputy Speaker]

I call the Liberal Democrat Front-Bench spokesman.

[Luke Taylor (Sutton and Cheam) (LD)]

This report is an utterly damning assessment of our national resilience, this time through decay but also through a lack of readiness as the climate crisis changes the dynamics, with old equipment operating at higher temperatures just as the loads for climate control and air conditioning are at their peak. The British people will rightly be alarmed that the problem that caused this substation failure was known as long ago as 2018, but there is a much wider point here. Beyond the technicalities of this failure, the resilience of critical national infrastructure has been neglected for far too long.

As an engineer, I came to this place for precisely this reason: we are too short-termist and too narrow in our vision. We cannot possibly expect to remain a world leader in infrastructure if we cannot future-proof and seriously invest in the resilience of our assets. Building and maintaining infrastructure might not get pulses racing. There is no ribbon to cut when something just continues to operate efficiently, but that long-termism is an ideology that we should all get behind if we are serious about Britain’s future. The report outlined the many missed opportunities to fix the issues at the substation, and we will all have to look seriously into Ofgem’s consequential investigation into National Grid once it is published.

This is not just about grid resilience, though. This time it was a fire caused by a fault, but next time it might be a deliberate cyber-attack or an act of terrorism, which could have a more disastrous impact. We must look beyond the short term, with a strategic and long-term plan to join up national infrastructure and make it safe and reliable for all. The Government must bring about a strategy and act quickly to review the resilience of all similar assets, including every UK airport—they are all critical to our national economy and our society.

With that in mind, can the Minister confirm whether an assessment has been made of the likelihood of a repeat of this incident, at Heathrow and at all other pieces of critical national infrastructure? Also, are the Government taking this opportunity to finally pick up the National Infrastructure Commission reports from 2020 and 2023, which were ignored by the previous Government, and the report from 2024, which was not implemented quickly enough, and to implement standards and frameworks for resilience in key sectors such as aviation, telecoms, water and energy, which will future-proof our ageing infrastructure to make it reliable and safe?