Heathrow Airport closed after a fire broke out at a single substation in West London - causing a massive power outage.

In today’s episode we hear about the critical role of electrical substations in our infrastructure from Head of Technical Regulations at the Institution of Engineering and Technology Mark Coles.

We also find out about the global impact of the closure of one of London’s busiest airports from Principal Research Fellow at University College London’s Air Transportation Systems Group, Dr Lynnette Dray.

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