Das Projekt "Hochleistungs-Photovoltaik in Gebaeuden" wird vom Umweltbundesamt gefördert und von Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg durchgeführt. Objective: Thin-film solar modules based on CIGS absorber are an emerging technology in Europe. To accelerate the acceptance of the product on the marketplace aesthetically convincing solutions for building integration combined with high technical quality are required. Fast increase of market share is a prerequisite for low-cost production which is only possible with high production volumes. Description of work: The aim of the proposed project is to develop high performance, high quality and stable thin-film PV modules for the integration into buildings (facades as well as roofs) forming a fully integrated part of the outer skin of the building. The work will include modules for the facade and modules suited for the replacement of roofing tiles and slates in an advanced manner resulting in performance and cost improvements as compared to the existing technologies and designs. All the aspects from cell and module technology, shading and hot spots to assembling and electrical interconnection and life-time testing will be included. Electrical interconnection elements in appropriate combination with the mechanical fixing will be provided to ensure low labour costs and high safety during module mounting. An important goal is to increase the public acceptance of PV in buildings by covering of aesthetic aspects, architectural ideas and demands of protection of historic buildings. Security aspects and building regulations will be considered from the beginning. Shading and hot-spot sensitivity will be analysed, considered and improved if required. Cost reduction is aimed at mainly by standardisation of products and parts, process optimisation and giving the modules the potential to adopt multiple functions in the building (replacement of expensive decorative elements of facades and customary roof parts). The range of module sizes will extend from small sized roof tile size to standard production module size (e.g. 1200 mm x 600 mm) and larger sizes which will be realised by assembling of submodules. Technologies used in structural glazing will be adapted for framing and fastening elements of the facade modules. Long-term stability will be analysed by procedures according to international standards. Expected Results and Exploitation Plans: The project will result in reliable and cost-effective technologies to produce and install solar modules based on the CIGS-technology and optimised for integration into buildings as parts of their facades or roofs including the technologies for the integration. The modules will have enhanced long term stability, improved shading and hot-spot behaviour and will be equipped with the required parts for fixing and mechanical and electrical connection. Acceptance of building integrated photovoltaics will be raised due to excellent visual appearance, provision for building standards and improved manageability.