evaporative cooling costs about 1/4 of refrigerated.... it is totally suited to areas of high humidty regional nsw and sa have similar average humidity of around 60% it is most affective in dry desert areas... there are numerous ways one can help to reduce the amount of heat from the sun around the house.... refrigerated uses a large amount of energy... evaporative cooling uses a large amount of water.... but less energy.... trees around the house can help...they also use water... innovative design of the house can help reduce these costs... imagine solar power will be benficial in the summer...but also depends on the amount of daily sun... its highest in the north of aus, and lowest in the south... thats my 2 cents worth...I seek out the experts to help me decide
