Development of a prefabricated standard BIPV façade for selected building categories in Germany for the energy refurbishment of existing buildings and provision of renewable energy on site

Subproject: Market analysis of facade surfaces on existing buildings

In recent years, there has been no significant increase in installed capacity in the field of building-integrated photovoltaics (BIPV) in Germany. However, the decentralized and local energy infrastructure is necessary and desirable, as it contributes to sustainable building, to the reduction of operating costs of the building and to the refinancing of the building envelope. The lack of BIPV growth can be justified by the comparatively high investment costs. These are due, among other things, to the lack of an industrialized construction method for BIPV components, the associated high assembly costs and a complex approval procedure for the building sector.


Development of a catalog of requirements for the definition and constructive implementation of standardized BIPV facade elements.

Identification of building categories with large area potential for the application of standardized BIPV facade elements based on geoinformatics techniques.

Development and demonstration, of multifunctional, building-integrated, photovoltaically active facade elements, which are characterized by low-cost mass production suitable production-oriented design, simple element assembly and electrotechnical installation, and a high level of aesthetics.

Validation of the developed solutions on prototypical standardized BIPV facade elements in pilot facades.

Research questions

Which building category (building use) has the largest theoretical area potential for the application of standardized BIPV facade elements?

What is the advantage of solar irradiation analyses to estimate the application potential of standardized BIPV facade elements on a small scale?


In the course of the rough analysis, geographic information technology is used to make a rough Germany-wide survey of the theoretical area potential of German building facades with reference to various building categories and to identify the most typical buildings in a building category with the greatest "market potential" for BIPV. In the course of the detailed analysis, solar irradiation models are used to determine site-specific area potentials for selected building categories in focus areas.

The Leibniz Institute of Ecological Urban and Regional Development is jointly funded by the federal government and the federal states.

FS Sachsen

This measure is co-financed by tax funds on the basis of the budget approved by the Saxon State Parliament.