20.500.12556/DiRROS-31862 Fire incidents involving photovoltaic systems an analysis of different national statistics With the increasing number of PV installations, reported PV-related fire incidents are receiving greater attention, although their quantification depends strongly on how such events are recorded. To manage fire safety risks in PV systems effectively, accurate statistics on the probability and consequences of these incidents are essential. National statistics from the UK, Italy, Sweden, and Slovenia were analysed to examine how differences in reporting methodologies influence the observed fire statistics. The findings indicate that different measures may be relevant for assessing ignition frequency. When comparing reported fire numbers, the rate ranges from approximately 4-11 fires per GW annually in the UK, Italy, and Sweden, to about 37 per GW annually in Slovenia. Similarly, the number of incidents per 100,000 installations was found to be approximately 5-22 for the UK, Italy, and Sweden, compared with 75 in Slovenia. These differences are likely influenced by variations in data collection methods and inclusion criteria across the countries. Swedish data also show notable differences in the various measures depending on system size. In the Swedish dataset, DC cables and connectors are the most frequently identified ignition source. Regarding consequences, about 68% of fires remain confined to the PV equipment, while 24% damage adjacent surfaces. In 5% of cases, significant fire spread occurred, while in 3% the building was completely destroyed. The similarities and differences in the national statistics highlight the need for harmonised data collection to enable meaningful comparison and support data-driven fire safety measures for PV systems. PV solar power systems fire risk consequence statistics cause PV sončne elektrarne požar tveganje posledice statistika vzrok true false true Elsevier Angleški jezik Slovenski jezik © 2026 The Authors Neznano 2026-08-13 12:50:02 2026-08-13 12:52:45 2026-08-14 03:48:12 0000-00-00 00:00:00 2026 0 0 V uvodu posebne št. navedeno: This special issue is based on selected papers presented during the 5th European Symposium on Fire Safety Science (ESFSS) ... Ljubljana, Slovenia, from September 3rd to 5th, 2025. str. 1-11 [article no.] 104936 Vol. 165 Nov. 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2026-07-15 614.84 1873-7226 10.1016/j.firesaf.2026.104936 285559811 https://doi.org/10.1016/j.firesaf.2026.104936 0 be5bad36-9704-11f1-af5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=49519 RAZ_Mossberg_Axel_2026.pdf RAZ_Mossberg_Axel_2026.pdf 1 2FD6284F23B186C3CEB484882C6D2391 9c8e9d2310b6d3a179e9f4b3f9b18fca98a17e08cc873b1e5d228e3cad9a1e64 0c7a31d7-9705-11f1-af5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=49520 Zavod za gradbeništvo Slovenije 0 0 0