My a/c is turned on 30+ hours a day...just received May bill, it was $390+, close to $400. It's mostly electric since the only cooking I do is for the boy...which is like boil porridge 2x a day.
A/C in living room on from 8am - 9:30am, 11am - 1pm, 3:30pm - 6pm, 8 - 9pm = 7hrs/day
boy's...