Influence of PV system orientation and design on energy self-consumption and cost savings

This study examines how PV system orientation and design affect energy generation, self-consumption, and cost savings in a Nordic climate. Five different PV systems are analysed from the monitoring data of a Plus-Energy school in Oslo. The analysis shows that roof-mounted systems achieve higher specific electricity generation and cost savings in general. In contrast, façade-mounted systems generate more electricity in spring and autumn. The school’s dynamic electricity demand profile aligns well with PV generation, resulting in a 75% self-consumption rate. Demand response strategies, such as heat pump load-shifting, could further enhance the school’s self-consumption. These findings provide insights for optimising PV integration in
similar buildings and climates.

Å.L. Sørensen, H. Johra, N. Lolli, H.T. Walnum, I.E. Høiaas, I. Andresen (2025).

Influence of PV system orientation and design on energy self-consumption and cost savings: A Norwegian case study.

In Proceedings of the CISBAT conference 2025. Journal of Physics: Conference Series 3140, 032018. https://doi.org/10.1088/1742-6596/3140/3/032018