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Weiter zu ChatIt is a well known fact that the sun is the strongest in the south. People who want to conserve solar energy use this theory to get the maximum amount of sun in their homes with minimal expense. If you are building a house that you want to use with solar energy, it is better to place as many windows as possible facing the south side. Although this is not always true, it depends on where you live. Passive technology transforms sunlight into heat that can be used for many purposes, including ventilation and cooling. You can heat homes and businesses with passive solar energy. Passive solar systems depend on gravity and natural resources to operate the passive solar system. If it uses a pump or fan to force the liquid, it is an active solar system. https://www.maleraffine.com/en/homeimprovement-solarpower-passive-solar-power