Sorry, covering the whole building with solar panels and getting 24 wind turbines will provide them with TEN PER CENT of their energy? That's pathetic! And how long before they recoup their investment at that rate? Assuming they do, that is - presumably the panels have a limited working life.

And before someone says "It's not about the money" my point is that there's not much incentive for companies to do this if they're making a loss.

And where are the windows?