Experimental assessment of the thermal performance and energy consumption of a single-family Passive House

This paper presents an experimental study of the thermal performance of a single-family house located in a coastal city in northern Spain that was certified by the Passive House Institute in 2018. An Internet-of-Things-based home automation system registers temperature and relative humidity in most of the thermal zones of the house, and also main operational variables and energy consumption of the heat recovery ventilation system and the aerothermia heat pump that provides for domestic hot water and space heating. The hourly electrical energy consumptions of the house are additionally available through the intelligent metering system of the electrical supply company. The results indicate a high thermal comfort in the house in terms of room temperature and relative humidity, with a total annual primary energy consumption of 102.5 kWh/m2 on heating installation, domestic hot water and household electricity, that is below the limit of 120 kWh/m2 specified by the Passive House Institute.