A new technology is winning recognition: solar cooling. What sounds like a contradiction in terms is based on an ingenious principle? The cause of the heating supplies the energy for cooling. The stronger the hot solar irradiation and the greater the need for air conditioning, the greater the benefits in terms of cost-effective and environmentally friendly energy. In many countries around the world in which the demand for electricity peaks due to the wide-spread use of air conditioning systems during the summer months, solar cooling can prevent full load or even overloading of the power grids. For building owners, especially in the commercial sector, it stands for the comfort of pleasant temperatures combined with low costs and maximum reliability.