The specific heating demand of the investigated building was determined to be 12.3 kWh/m2a. This value proves the building to be designed according to passive house standard. Due to high internal loads and large glazing areas, a cooling demand was expected even for a location in central Germany. However, due to the external shading devices used, the simulated cooling demand of the whole building (not considering the server room) was determined to be 1.9 kWh/m2a. In opposite to this relatively low average value over the year, the maximum cooling load of the building was determined to be larger than 30 kW at peak times.

Fig. 3: Energy balance of the building (without server room).