National Grid's CEO John Pettigrew confirmed that Heathrow had access to sufficient power during the substation fire that temporarily closed the airport. He emphasized that two functioning substations could have provided all necessary energy, while the government's investigation aims to understand the incident and improve energy resilience. Heathrow's chief executive, Thomas Woldbye, explained that most airport operations halted due to a lack of backup power for non-essential systems, despite safety mechanisms functioning properly. The shutdown reportedly cost the airline industry £60m-70m and disrupted over 200,000 passengers.
There was no lack of capacity from the substations serving Heathrow, according to National Grid CEO John Pettigrew, stating that each can individually supply enough power.
Ed Miliband highlighted the government's commitment to understanding the incident and improving energy resilience for vital national infrastructure after the Heathrow closure.
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