Poor maintenance has been blamed for a blaze at a London substation that caused a major, costly shutdown of Europe's busiest airport, a report says.

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

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

Ofgem opens investigation into National Grid as report finds incident that cut airport power was preventable

A power outage that shut Heathrow Airport earlier this year, causing travel chaos for more than 270,000 passengers, was caused by a “catastrophic...

The fault that grounded all flights was detected seven years ago and wasn't fixed, report finds.

An investigation has been launched by the energy regulator into National Grid after finding issues at a substation were not fixed.

A new report by...