Teil II: Die Energiebilanz der Universität Osnabrück

One central aspect of the environmental management system for universities developed in Osnabrück is the environmental audit of universities as realized by an ecobalance. This article deals with modelling of the material and energy flows caused by the energy supply of the University in Osnabrück using the software Umberto^®. The result is the university’s energy balance. 37% of the primary energy gets lost in the pre-processes of energy production, mainly during electricity generation. The final energy consumption of the university can be split into 37% electricity and 63% heat, whereas the relation of CO₂ emissions is almost the opposite. Related to this area, the electricity consumption in the different buildings is partially above that seen in similar university buildings in Germany, but below that of all the other values observed for universities located in Lower Saxony. Both the electricity and heat consumption, and therefore also the climate-damaging emissions of CO₂, have increased over the past years. Without further measures the university will not be able to achieve the CO₂-reduction target of the federal government. Recommended are the increased use of district heating power stations to produce the university’s own electricity with lower emissions and energy saving measures, especially in the field of electricity which is responsible for high CO₂-emissions.