We have been designing a production plant for the austrian company IFN and its daughter HSF to manufacture plastic and aluminium windows, which is being constructed at the moment. The project aim is to meet the criteria of energy certificate A0. The plant in the size of more than 16,000m2 be heated by heat pumps and a 2MW fotovoltaic power station will be placed on its roof. The plant building process is conducted by company STRABAG.