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 room a/c on from 9:30am - 11am, 1pm - 3:30pm and 7pm - 7am = 16hrs/day
our room from 9pm - 6:30am = 9hrs/day
So total daily a/c usage is like 32hrs/day and the living room a/c is a higher btu one....so you can imagine lah, that's why bill so high.
A/C in living room on from 8am - 9:30am, 11am - 1pm, 3:30pm - 6pm, 8 - 9pm = 7hrs/day
boy's room a/c on from 9:30am - 11am, 1pm - 3:30pm and 7pm - 7am = 16hrs/day
our room from 9pm - 6:30am = 9hrs/day
So total daily a/c usage is like 32hrs/day and the living room a/c is a higher btu one....so you can imagine lah, that's why bill so high.