Building-integrated photovoltaics (BIPV) are photovoltaic materials that are used to replace conventional building materials in parts of the building envelope such as the roof, skylights or facades
The lightweight PV module design will be based on the use of composite materials and polymer films to replace the standard glass-glass configuration for the back sheet and the front sheet, respectively. A process for colouring polymeric adhesive film was developed to achieve the target of aesthetical appealing, lightweight BIPV modules. Shape and size of the coloured and lightweight BIPV modules will depend on the specification of the site where BIPV modules will be installed. Integration of these modules in building skin is made simpler and cheaper, through a newly designed mounting frame. The photovoltaic modules are completely integrated into the building, performing, in addition to those strictly related to energy production, also some or all the functions related to elements and subsystems of closure or shielding.
The photovoltaic components of the RE – COGNITION project must, preferably, belong to the BIPV category. In addition to ensuring efficient electrical productivity, the following preliminary requirements must be met:
- control and reduction of the operating temperature of the cells;
- water tightness and infiltration resistance;
- air and draught tightness;
- integration or compatibility with thermal insulation elements;
- Ease of installation and maintenance.
Specifically, the research and development activities of the BIPV component can be carried out according to an evolutionary logic with respect to components already developed and tested. Using special metal or PVC profiles is possible to create a stratification laminate-air gap-insulating layer, which replaces the entire roof or façade covering. This will assure the requirements above listed to be addressed.