This study investigates the electricity balance of high-performance detached houses in Ljubljana and Lisbon under the present-day climate and SSP1-2.6 climate change scenario, focusing on the potential of roof-mounted PVs to achieve net-zero energy buildings (NZEB). Results show that in Ljubljana, additional PVs or other energy sources may be needed in winter months. On the contrary, in Lisbon, a specific percentage of roofs covered by PVs satisfies the electricity use yearround to achieve NZEB. The study confirms that, under the SSP1-2.6 scenario, all highperformance buildings can achieve NZEB by appropriately utilising roof space for PV installation, regardless of location.

Author Luka Pajek acknowledges the financial support from the Slovenian Research and Innovation Agency (research core funding No. P2-0158). The Portuguese Foundation for Science and Technology (FCT) supported this work [doi:10.54499/PTDC/EME-REN/3460/2021 and doi:10.54499/UIDB/50022/2020].

8617-2E18-19EE | EUGÉNIO MIGUEL DE SOUSA RODRIGUES

info:eu-repo/semantics/publishedVersion