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New Findings on the PV Fire Prevention - Firefighter Strategy for in-Roof PV Installations
U. Muntwyler, E. Schüpbach
Shading, Power Optimizer, Fire Risk, By-pass diode, PV-Connector
PV Systems – Modelling, Design, Operation and Performance
Subtopic: Operation, Performance and Maintenance of PV Systems
Event: 38th European Photovoltaic Solar Energy Conference and Exhibition
Session: 5CV.2.46
1275 - 1277
ISBN: 3-936338-78-7
Paper DOI: 10.4229/EUPVSEC20212021-5CV.2.46
0,00 EUR
Document(s): paper, poster


PV Installations pose a relatively low fire hazard. However, there are several reasons for some PV installations to be involved with fire. The fire risk for in-roof PV installations is 20-times greater than on-roof installations[1]. The PV Laboratory of the Berner Fachhochschule BFH and the Engineering office Muntwyler has worked for decades on the prevention of fires in PV installations [2]. In the last few years, this work has been strengthened with the support of the building insurance company (Gebäudeversicherung Bern GVB) of the state of Berne in Switzerland [3]. With a better safety strategy, several fires created by PV components could be avoided. Such a type of safety strategy was developed by the aircraft industry and is used in the gliding community. The author, an experienced glider pilot, uses this safety strategy for PV installations to improve the safety of PV installations.