Abstract
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.