Heathrow Airport had “enough power” from remaining substations to avoid Friday’s shutdown, the chief executive of National Grid has said.
John Pettigrew said two substations were “always available for the distribution network companies and Heathrow to take power”.
Flights were halted after a fire knocked out an electricity substation in Hayes on Thursday evening, and were not able to resume until Friday evening, affecting around 200,000 passengers.
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