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Municipal building and energy management

The Freiburg Building Management Authority, which looks after the city-owned nonresidential buildings, such as schools, administrative buildings, and kindergartens, is also responsible for managing the energy use of these properties. The Building Management Authority’s energy guidelines specify requirements pertaining to energy-saving construction and efficient technology for new buildings and renovations, as well as for the operation and use of the buildings with a view to optimized energy consumption. The city’s own building stock as well as all planning and development projects are subject to constant monitoring and optimization in order to increase energy-saving potential, to reduce CO2 emissions, and to cut costs. Thanks to a wide range of ongoing measures that include the construction of efficient new buildings, renovations, the optimization of building operations via control systems, and janitor training, CO2 emissions from municipal buildings have plummeted by almost 50% since 1990.

Combined heat and power plan at the German-French High School (Photos: City of Freiburg)
PV plant on the roof of Theodor-Heuss High School
PV plant at Pestalozzi school
Flüchtlingswohnheim an der Merzhauser Straße (Foto: Yohan Zerdoun)
Refugee residence at Merzhauser Street (Photo: Yohan Zerdoun)

Other measures include the following:

  • The Fifty-Fifty Project creates incentives for Freiburg’s schools to reduce their energy consumption. What is more, the lesson being taught here subsequently spills over into the students’ own homes.
  • For municipal buildings, Freiburg’s Building Management Authority purchases renewable green electricity certified with the quality OK-Power label. By taking this step, the municipal Building Management Authority has stepped up its efforts to deal with rising electricity consumption as a result of changes in the buildings, such as digitalization and longer periods of use.
  • CHP covers 40% of the municipal buildings’ heating needs.
  • By forming campuses that feature clusters of buildings optimized for energy use, it is possible to reduce not only energy consumption, but to reduce system volumes sustainably as well.
  • Municipal buildings’ roofs are gradually being equipped with PV systems. The goal is to expand the power-generating capacity of the city and its buildings through renewables to the greatest possible extent.
  • Air-conditioning systems will not be installed as a matter of principle, which is why the municipal buildings’ thermal-protection system to keep out the summer heat has a special role to play in new buildings. It ensures that acceptable indoor temperatures can be achieved today and in the future in an environmentally friendly manner without the use of cooling systems.