Heathrow Substation Outage: NESO Review

Debate between Bill Esterson and Roger Gale
Wednesday 2nd July 2025

(1 week, 5 days ago)

Commons Chamber
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Roger Gale Portrait Mr Deputy Speaker (Sir Roger Gale)
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I call the Chair of the Energy Security and Net Zero Committee.

Bill Esterson Portrait Bill Esterson (Sefton Central) (Lab)
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It beggars belief that no action was taken after the risks were identified in 2018 at the North Hyde substation. The NESO report highlights a lack of information-sharing internally at National Grid and externally between organisations. It draws attention to the energy companies not knowing that Heathrow had a 10 to 12-hour arrangement for switching supply, and that National Grid did not appear to know that Heathrow was a customer of the substation. It is a matter of immense luck that the explosion and fire took place at 11 o’clock at night and that no one was present; otherwise, this would have been a very different discussion, with people having died. The Minister highlighted the unacceptable lack of action by National Grid. Will he ensure proper oversight and information sharing internally at National Grid and externally between organisations, so that we have safety and resilience in our national energy system, where it applies to critical national infrastructure and beyond?