Assuming an APU consumption is around 150kg/hour,and the number of A/C we do have here,a simple gesture like connnectig the GPU as soon as the A/C is at the parking stand(so we can get rid of the APU straight..fuel,noise.. at least in winter when you don't need ACU), could SAVE TONS of fuel EVERYDAY in this airline!
So why they don't do it..IF they are concerned about fuel...
Does APU cycle(maintenance..) cost more than fuel consumption at the end of the day?
