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Sign upDecember 5, 2022
La Poste Immobilier
Lyon
La Poste Immobilier collaborated with Eisox to upgrade the Hôtel des Postes in Nantes, a 35,000 m² multi-use building housing offices, a post office, and a parcel sorting center. Before the upgrade, the facility relied on traditional radiator valves and a Siemens Building Management System (BMS) with no synchronization between energy production and distribution. Eisox transformed the heating system by installing 950 smart radiator valves that predict occupant behavior and adjust heating control room by room. The Eisox BMS was integrated to regulate 25 heating circuits across five substations, monitor HVAC faults, and track energy metrics. Additionally, the Eisox hypervisor provides real-time insights into room conditions, energy usage, and maintenance alerts, enabling multi-site management and enhanced building control.
Following the installation in December 2022, energy consumption during the study period (November 2023 to April 2024) showed a significant reduction. Compared to the reference period (November 2021 to April 2022), the building achieved a 25% reduction in energy consumption when adjusted for Heating Degree Days (DJU) and a 33% reduction without this adjustment. This underscores the efficiency of Eisox's intelligent control system in optimizing energy usage while maintaining occupant comfort.
Eisox has designed the only technology on the market capable of learning and predicting the behaviour of building occupants in order to adjust the operation of equipment only when necessary. This all-in-one innovation is based on 3 pillars: cutting-edge equipment designed by our teams and manufactured in France, a hypervision platform for remote building management and Eisox intelligence that controls all the equipment according to the actual needs of each room. Manufactured in France, the Eisox system has already been deployed on 400,000 m², delivering energy savings of 30 to 45% and an ROI of less than 2 years.
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