Fraunhofer ISE, a German research institution, has initiated a new project aimed at studying manufacturing techniques and material utilization for building-integrated photovoltaics (BIPV).

Named ‘AluPV’, the initiative will involve Fraunhofer partnering with Baltic Renewable Partners, the Institute for Solar Energy Research, MN Metall, Solarnative, and VHF Plan Liesenhoff until the conclusion of next year. The project will be carried out at Fraunhofer’s Center for Silicon Photovoltaics in Germany.

An essential focus of the research will be on adhesives, specifically investigating the optimal methods for attaching module backsheets to aluminum surfaces. This aspect holds significant relevance for the BIPV industry, where panels are commonly affixed to aluminum frameworks. The study will also explore the processing techniques for various materials such as aluminum, glass, and polymers, to ascertain the most effective ways they can be utilized in building facades.

Ringo Koepge, a member of Fraunhofer’s PV Modules, Components, and Manufacturing group, expressed their intention to introduce an innovative combination of aluminum facades and PV modules. This research is being showcased at the ongoing EU PVSEC event in Vienna. The project’s emphasis is also on advancing lightweight profiles to reduce the overall weight of the structure.

In contrast to the traditional approach of painstakingly hiding solar cells, our team is currently working on an inventive modular facade system that offers unprecedented design possibilities for PV-activated facades. This innovative system aims to provide new levels of flexibility and creativity in integrating solar panels into building exteriors.

Further exploration of Building-Integrated Photovoltaics (BIPV) could play a crucial role in the widespread adoption of this technology. BIPV is often seen as a promising industry with untapped potential. A report by the European Commission revealed that Germany alone could accommodate up to 81GW of BIPV capacity. However, the country’s solar sector has shifted focus towards other avenues. According to research by Fraunhofer ISE, ground-mounted solar installations currently offer the most cost-effective levelized cost of electricity (LCOE) in Germany.

In recent months, the research organization introduced a tunnel oxide passivated contact (TOPCon) cell with an impressive power conversion efficiency of 24%. This breakthrough has motivated them to continue investing in technological research and development, pushing the boundaries of solar cell efficiency even further.