Demonstration and monitoring of innovative BIPV shingles. Analysis of building and electrical performance in outdoor test-facilities

Frontini, Francesco and Bonomo, Pierluigi and Polo Lopez, Cristina Silvia and Cais, Federico and Erban, Christof (2016) Demonstration and monitoring of innovative BIPV shingles. Analysis of building and electrical performance in outdoor test-facilities. In: Nationale Photovoltaik-Tagung 2016, 22.02.2016-23.02.2016, Bern, Switzerland.

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Poster SUPSI_A3_BiPV WP4_2016.pdf

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In the framework of the European project Construct PV, SUPSI is responsible of the realization of a small-scale outdoor test-facility within the framework of demonstration activities. The object of the investigation is a BIPV solar shingle conceived for an easy-mounting and on-site customization, and it consists of a durable glazed panel (containing crystalline heterojunction solar cells provided by the partner Meyer Burger) integrated in a waterproofing back-sheet layer made of a bitumen-based membrane. On summer 2015 two small-scale demonstrators have been realized and installed at the SUPSI Campus. The test stands consist in two metallic structures supporting an orientable roof (1,8 x 3,0 m) where BIPV solar systems are installed. The complete roof structure has been installed: all the real building layers of the roof including substructures, supporting boards, moisture-control membranes, thermal insulation and ventilation air gaps have been built onto the load-bearing structure in order to simulate the real behavior of the systems (both in terms of constructive and electrical performances). The stands have been equipped with temperature sensors (PT100), predisposed along each roof layer as well as at the back of the PV modules, MPPT aimed to measure the electrical performances (Pm, Voc, Isc and IV curves), some humidity sensors and an air flow meter. The stands are aimed both to demonstrate and disseminate the Construct PV technology (visits, professional development and student’s training, etc.) as well as to monitor the performance of the BIPV shingle (stand 1) in comparison to another BIPV roof system already existing in the market (stand 2). Energy production (performance ratio, temperature of modules, etc.) and building performances (watertightness, temperatures, ventilation, etc.) are analyzed and compared, showing strengthens and weaknesses of the technology in a multicriteria perspective involving both energy and constructive requirements.

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