Britain’s energy regulator, Ofgem, has launched an official enforcement investigation into National Grid Electricity Transmission.

An investigation found the fire which caused London's Heathrow airport to shut down in March was the result of a known fault ...

THE fire in a Hayes electricity sub-station, which caused the shutdown of Heathrow Airport in March, was probably caused by a crucial ...

A fire that shut Heathrow Airport in March, stranding thousands of passengers, was caused by National Grid's failure to ...

The fire at an electrical substation was caused by a short circuit in a part that hadn’t been properly maintained by National ...

Investigators have determined the electrical facility fire which forced the closure of London Heathrow was triggered by a ...

An inquiry has found that an electrical substation fire that shut down Heathrow Airport in March was caused by a preventable ...

An inquiry has found that an electrical substation fire that shut down Heathrow Airport in March was caused by a preventable ...

A report into what caused a substation fire in March 2025 that left Heathrow almost powerless has placed the likely blame on ...

A fire that shut London's Heathrow airport in March, stranding thousands of people, was caused by the UK power grid's failure ...

National Grid blamed for failing to act on known transformer problem, while Heathrow accepted risk as a ‘high-impact, ...

The boss of National Grid has said recent outages at Heathrow airport and the London Tube are not evidence of reliability issues in the UK’s power network. John Pettigrew told the PA news agency the ...