Longitudinal Energy Efficiency of an IoT-enhanced Residential Building

Energy management of homes has become an ever-burning question of saving both in monetary costs and fighting climate change.However, energy management studies on smart homes still lack longitudinal real-world data with different seasonal variations and real people living in the buildings.This paper presents a low-price, consumer-market IoT sensor installation to capture residential buildings' energy efficiency.We present a longitudinal study focusing on the energy efficiency modelling of a building and its energy consumption.We provide our sensing solution's validation with the district heating system as the primary heating source.Our results highlight that IoT sensor readings can be further utilised to evaluate a standardised, European Union-wide energy certificate.