Energy restoration of public buildings is an important strategic area within the framework of the EU Energy and Climate Package (Strategy 3×20). In the case of renewal, however, we face a number of challenges, such as high energy consumption and associated costs; the monument protection of the building heritage, which dictates certain restrictions on interventions; worn-out and inefficient building systems; lack of own resources to carry out the reconstruction, and the like. Due to the complexity of the area of building renovation and different approaches, we have created knowledge alliance, where we connect different scientific disciplines (architecture, construction, mechanical engineering, economics, electrical engineering, anthropology, etc.) with the aim of solving complex interdisciplinary problems in the field of comprehensive energy renovation of public buildings. MORE