Le Havre Seine Métropole: the Océane stadium

Facilitating the management of facility maintenance and reducing energy consumption


Le Have Seine Métropole (LHSM)

Le Havre Seine Métropole (LHSM) is a french agglomeration with 275,000 inhabitants spread over 54 municipalities. The agglomeration manages numerous services for its citizens: water management, waste management, schools, health services, sports and leisure facilities, etc.

Le Havre Seine Métropole has more than 200 buildings to maintain on a daily basis for the needs of the community, including the Océane stadium.

Océane stadium

With a capacity of 28,000 people, it is the largest facility capable of hosting any type of event in Normandy.

Designed to operate efficiently and smoothly, the Océane stadium is also the first positive energy stadium in france: it produces more energy than it consumes, helping to reduce its carbon footprint.

Sector: city

Type of building: sports facility



Le Havre Seine Métropole has been using the Carl Source CMMS solution (Berger Levrault – Carl Software) since 2016, which enables it to facilitate the day-to-day maintenance of its equipment and facilities.

To go further, LHSM now wants to facilitate the maintenance management of its facilities and reduce its energy consumption by using IoT.

As a first step, and before a larger-scale deployment, the validated solution is being tested in the Océane Stadium, a 19-hectare facility with multiple technical equipment.


In order to meet the needs of the Océane Stadium, the following solution was deployed:

  • Adeunis IoT sensors, were installed in the stadium and on its various equipments.
  • The Wattsense. communication service centralises the building’s data and ensures the connectivity of the equipments.
  • The BL Predict platform, from Berger Levrault, stores, analyses and transforms the data in order to enhance it and provide constant information.

How to ensure the proper functioning of temperature and humidity sensitive electronic equipment?

Adeunis COMFORT IoT sensors are deployed in rooms containing sensitive electronic equipment to monitor temperature and humidity.

The analysis of this data ensures that the equipment is functioning properly. An alert system informs the manager as soon as a threshold is exceeded, so that he can act as quickly as possible.


How to control the operation of the Air Handling Units (AHU) in order to guarantee a good air renewal in the building?

Adeunis SMART DELTA P IoT sensors have been installed on the air handling units.

The data processed by the platform allows building managers to adjust the operation of the ventilation system and anticipate maintenance operations.


How can the building’s energy consumption (water, gas, electricity) be analysed with the aim of reducing it?

The energy meters are equipped with Adeunis PULSE IoT communicating sensors that read and transmit consumption data.

Thanks to this data and its analysis over time, it is possible to highlight consumption that appears abnormal and can be reduced.

The remote alert function allows a quick reaction to over-consumption, which is synonymous with a potential leak.


How to control the temperature of domestic hot water (DHW) networks in order to prevent the spread of Legionella?

The Adeunis TEMP2S IoT sensor and its two temperature probes measure the temperature of the DHW network to ensure that Legionella does not spread (the temperature must be legally maintained at least at 55°C between the point of distribution and the point of use).

The IoT sensor sends out an alert when the water temperature no longer meets the regulatory criteria.

Thanks to this connected sensor, the data is regularly read and recorded, without anyone having to go anywhere.


Given the size of the stadium and the amount of equipment to be monitored, it would take several days for the only technician present to simply check their condition.

This solution saves precious time by allowing targeted interventions.

The wireless sensors installed, as well as the 150 or so pieces of data collected, provide the site manager with concrete information.

The platform can inform managers in the event of a malfunction, automatically notify them of any technical symptoms, prevent certain technical operations and optimise the energy performance of equipment.


Optimising energy performance


Reducing equipment operating costs


Facilitating maintenance operations


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