National Grid boss says Heathrow had ‘enough power’

The chief executive of the National Grid has confirmed it was able to provide “enough power” to keep Heathrow open throughout Friday’s shutdown.
John Pettigrew told the Financial Times on Sunday the fire that knocked out a substation was a “unique event”, but that two other substations remained operational and capable of powering the airport in west London.
Heathrow’s chief executive had earlier said the shutdown was not caused by a lack of power, but was due to the time it took to switch from the damaged substation to the other two.
The airport is under pressure from airlines to explain why flights were suspended for 18 hours after the fire in the early hours of Friday morning.
The fire started in a transformer within the electrical substation in Hayes, north of Heathrow, around midnight.

Courtesy: BBC