Thats right, if the sun makes you hot and uncomfortable then why not use its power to cool down. The solar powered air conditioner does precisely that. But if you are wondering about what happens during those hot sweaty nights, the A.C. works on batteries too. I assume that the batteries get recharged when the solar panels are receiving enough sunlight. SolCool Millenia as the product is called costs around $3500 and that includes installation fees. The SolCool includes a sealed, two-gallon water tank that stores cooled water, which the air conditioner draws cooling from during a power outage.

The point behind having a seperate solar powered A.C. rather than having a system that powers up the whole house is that the latter is too expensive. Buying stand alone devices such as solar powered air conditions and water heaters, makes it easy for the consumer to invest in them one at a time.

'The latest SolCool unit has an energy efficiency rating (EER) of 30, according to SolCool. (That ratio is calculated by dividing the cooling output by watt hours). Room air conditioners of similar cooling output with an EER of 9.7 meet the federal Energy Star rating standard by the U.S. Department of Energy.'

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