As part of this project, Remica introduced the Hybrid Zero Cost Plan, the first initiative in Spain to generate Energy Saving Certificates (CAE) and secure the largest Next Generation Funds subsidy—€14 million. The comprehensive retrofit included the installation of 102 heat pumps and 1,146 photovoltaic solar panels (630 Wp each) while retaining existing boilers for support. To further enhance energy efficiency, improvements have been made to the building envelope with thermal insulation of the façade.

Additionally, 243 Vicki LoRaWAN® Smart Radiator Thermostats and 243 MClimate HT Sensor LoRaWAN® were deployed, enabling precise monitoring and control of temperature and humidity across numerous homes. The open-protocol devices seamlessly integrated with Remica’s BMS, providing real-time indoor climate data to optimize energy distribution. Vicki TRVs introduced automated scheduling and open-window detection, further reducing energy waste, while HT Sensors supplied real-time and historical temperature and humidity data for precise system adjustments. As a result, occupant comfort has significantly improved, and by supplying only the necessary energy, waste has been minimized—leading to substantial cost savings. Through the implementation of the Hybrid Zero Cost Plan including the MClimate devices an energy savings of 78% have been achieved, improving the energy rating of the building from E to B which leads to an increase in the value of the property.  

With an ROI of just 18 months, Vicki Radiator Thermostats offered the Hybrid Zero Cost Plan a cost-effective and impactful solution for residential retrofits. Together with HT Sensors, featuring the longest battery life on the market, they ensured long-term energy efficiency and CO₂ reduction in buildings.