Heathrow substation fire ‘caused by fault first identified seven years ago’
Ofgem opens investigation into National Grid as report finds incident that cut airport power was preventable
The root cause of the substation fire that shut Heathrow airport was a preventable technical fault that National Grid had been aware of seven years ago but failed to fix properly, investigators have concluded.
The final report by the National Energy System Operator (Neso) on the incident said the fire that cut power to the airport on 21 March, affecting more than 1,350 flights, almost 300,000 passengers and cutting power to 67,000 homes, was “most likely” sparked by moisture entering the insulation around wires. Continue reading...
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