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Investigation ordered into power outage that closed Heathrow

  • The British government ordered an investigation into energy resilience after a substation fire shut down Heathrow Airport for nearly 18 hours, affecting over 200,000 passengers and resulting in over 1,300 flight cancellations.
  • Energy Secretary Ed Miliband requested that the National Energy System Operator urgently investigate the fire to learn wider lessons for energy resilience in critical infrastructure, with initial findings expected in six weeks.
  • Heathrow's Chief Executive stated that the backup power supply worked as intended but was insufficient to operate the entire airport, which uses energy comparable to a small city.
  • The Metropolitan Police concluded that the fire is not suspicious, and investigations will continue with partners including the London Fire Brigade and National Grid.
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The fire was declared on Thursday night at an electric transformer station in Hayes, West London. The police had indicated as early as Friday that they had not found "a sign of intentional act"

·France
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Metro News broke the news in London, United Kingdom on Saturday, March 22, 2025.
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