7 February 2012: Daily Mail article on how “‘New thermal images show huge amounts of energy being wasted by UK firms” with pictures taken of “The skylines of London, Liverpool, Manchester and Birmingham as part of the Business Energy Insight scheme that will help firms with their energy bills.”
It’s not really clear how much these pictures actually reveal in terms of energy wastage – however above is the picture of London in case of interest!
IR cameras cost less now.