In order to decrease energy expenses and maintain a comfortable indoor climate for the hotel guests, the Hotel Rakuuna management required precise data and individual remote control of the heating in the building. Starting with an energy audit of the property our partner Nanea identified the current state of energy use, compared it to similar buildings and provided a comprehensive report with a preliminary design of a new heating system tailored to the property energy needs. The new system included 45 Vicki LoRaWAN® Smart Radiator Thermostats installed on all radiators in the building together with waste air heat pump and new energy-efficient ventilation fans. The open-source, no vendor locked-in settings of the Vicki Radiator Thermostats ensured seamless integration with the new building automation system. The devices enabled remote monitoring and control on a room-by-room basis and provided real-time and historical data that could be easily analyzed and used for sustainability reporting. The scheduling function, along with the open-window detection feature, were especially useful for the hotel avoiding energy waste when the rooms are empty. All these improvements resulted in remarkable savings of 75% of the original energy consumption (294 MWh) in the first heating season, with the MClimate Vicki LoRaWAN® Smart Radiator Thermostats playing a significant role. By adjusting the hotel’s temperature levels, optimal energy use was ensured avoiding costly over- and underheating of the building.
   
The comprehensive smart building solution provided by Nanea enabled the hotel to achieve energy efficiency and significantly reduce its carbon footprint without requiring major construction work.