Simon Gallagher, founder of UK Network Services, said Heathrow could have had enough power from one live substation during the outage, but it would have taken hours to reconfigure the airport's network.
He acknowledged National Grid’s point that there was sufficient capacity but stressed Heathrow's challenge in adjusting to use that power in time.
Report by Covellm.
Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn
