Rotartica, a Spanish company, is coming up with a new Solar powered air conditioning system by combining the existing technologies: they use evacuated tube thermal collectors with a water-heated absorption chiller, and package it in a relatively small sized box that produces a 4.5 kw cooling power. Dimensions and weight: 109 cm x 76 cm x 115 cm, 290 kg (43″x30″x45″, 640 lb). The existing solutions were either big units or did not use both technologies together. The way this unit works is simple: you put hot water and you get cold water out.
If you are interested in knowing more, check out the article on TreeHugger or the manufacturer product page.
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