When cooling temperature is achieved, the unit runs fan only for 35% of the time and then the compressor runs for 65% of the time in order to maintain temperature.
Energy - at temp (per hour) = (450 watts x 0.65 hours) + 109 watts x 0.35 hours)
= 292.5 W/h + 38.15 W/h = 330.65 watt-hours