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Sustainable Building Case Studies

  1. Bremen State and University Library
  2. Radical refurbishment of the office towers of the KfW Bankengruppe (banking group)
  3. Printing company in Karlsruhe
  4. Office buildings of the Civil Engineering Office in Nuremberg
  5. Käthe-Kollwitz School, Aachen
  6. Renovation and reconstruction of a childcare facility in Wismar
  7. Renovation of a listed "Art Nouveau" building in Nuremberg
  8. "Neue Burse" student hall of residence, Wuppertal

Bremen State and University Library

Bremen
© University Library Bremen

Measures

  • Optimised lighting
  • Ventilation with heat recovery
  • Active cooling
  • Renewable and passive cooling
  • Control technology, operating control systems, building automation
  • Optimisation of operations

Energy Savings

Energy costs for ventilation, refrigeration and cooling were reduced by 73%, from 11 EUR/m2a to 3 EUR/m2a. The primary energy consumption for heating, cooling, ventilation and lighting dropped by 70%, from 831 kWh/m2a to 230 kWh/m2a.