National

The chief executive of the National Grid has confirmed it was able to provide "enough power" to keep Heathrow open...

The chief executive of the National Grid has confirmed it was able to provide "enough power" to keep Heathrow open...

The chief executive of the National Grid has confirmed it was able to provide "enough power" to keep Heathrow open...

The chief executive of the National Grid has confirmed it was able to provide "enough power" to keep Heathrow open...

The chief executive of the National Grid has confirmed it was able to provide "enough power" to keep Heathrow open...

The chief executive of the National Grid has confirmed it was able to provide "enough power" to keep Heathrow open...

The chief executive of the National Grid has confirmed it was able to provide "enough power" to keep Heathrow open...

The chief executive of the National Grid has confirmed it was able to provide "enough power" to keep Heathrow open...

The chief executive of the National Grid has confirmed it was able to provide "enough power" to keep Heathrow open...

The chief executive of the National Grid has confirmed it was able to provide "enough power" to keep Heathrow open...