Objectives
- Control and reduce energy consumption
- Improve the energy performance of all sites (supermarkets, markets, warehouses, headquarters)
- Provide reliable data to the CSR team of the Group
NUMBER OF BUILDINGS
TOTAL SURFACE AREA
TYPE
SECTOR
Connected sensors deployment
The 102 Carrefour superstores were equipped in 2 months, i.e.1,760 sensors deployed across all the sites: 1,633 electrical sensors, 68 gas sensors, and 60 temperature sensors.The Energy Managers were able to monitor the trends in energy usage of each hypermarket (cold storage for food, HVAC, lighting, laboratory) in real-time. The process then continued on the 300+ new buildings. In addition to deploying the sensors and providing the savee energy monitoring platform, the Energy Managers assist maintainers in solving their problems with the help of data processing and renowned technical expertise.
Tracking and analysis
With the sensors and data from the centralised technical management systems, Carrefour tracks around 12,000 pieces of data on an hourly basis (every 10 minutes in some cases). Monitoring and priorities for action are done thanks to the use of automated indicators and alerts. This mass data processing gives the technical agents greater responsiveness. Data analysis also allows us to precisely measure the real impact of these actions and the work that has been done.
Recommendations and execution
Our Energy Managers were able to detect 5,000 ways to improve (over 70% of which have been implemented) over the last 4 years thanks to the analysis of data and on-the-ground technical visits.
The most significant energy consumptions observed in the shop came from the cold food storage and HVAC. Consequently, most of the actions were related to these energy expenditures. 50% of the actions were carried out on cold storage, 30% on HVAC, and 20% on installing hourly programmes.
Fifteen advizeo Energy Managers make sure that the mission within Carrefour goes smoothly. They follow and help Carrefour’s different stakeholders, from assistance with field operations to supporting the asset managers with strategic planning, most notably in terms of investment.
The daily operation of a hypermarket is inherently energy-intensive: customer traffic that brings in large amounts of fresh air, refrigeration for food preservation, continuous operation of bread ovens, etc. The significant benefit of advizeo lies in optimizing schedules to achieve savings and better control energy consumption.
Florent TOR – Technical Manager Carrefour CLAIRA