Our adsorption cooling systems with the working pair water/ zeolite and water/ silica gel are availble with nominal cooling capacities from 10 to 25 kW (respectively 30 kW). These systems are suitable for low driving temperatures down to 55 °C. The nominal temperature for adsorption sytems is 15°C. With a cooling capacity up to 25 kW suitable applications are e.g. air-conditioning of private residences and offices. The additional electrical power consumption is less than 0.1 % of the cooling capacity.