Enless Wireless and PGC, an expert in HVAC engineering, are collaborating on a project to monitor the HVAC (Heating, Ventilation, and Air Conditioning) systems in several social housing complexes in Seine-Saint-Denis.
This project, which is part of the Energy Savings Certificates program, involves a total of four social housing complexes owned by the landlord SEINE SAINT-DENIS HABITAT.
The operating contract was awarded to REOLIAN MULTITEC in 2020 for three lots (Nos. 1, 2, and 4). The landlord’s request involved monitoring various data points, including ambient temperature, heating flow temperature, and building malfunctions, among others.
ENERLIS provided a solution based on the installation of optimizers capable of meeting the need.
It incorporates a total of 950 Enless Wireless ambient temperature and humidity sensors deployed within the homes, using the Sigfox network for communication.
“The Sigfox network allows us to overcome the specific constraints of each site and implement ‘plug-and-play’ systems. This is a real advantage. The data collected is reliable, and we haven’t experienced any transmission failures,” says Clément Pedrot, a systems engineer at PGC.
The project consists of three successive deployment phases, as detailed in the timeline below:
The data collected and transmitted by Enless Wireless temperature and humidity transmitters is managed via the PGC Data management platform provided by PGC.
The substations/boiler rooms at each site are equipped with Sofrel controllers, which communicate via 4G with the BMS : the PCVue supervisor, which monitors and controls the HVAC systems.
Alarm thresholds are set for ambient temperatures to enable the operator to optimize and better control energy consumption.
Data logging alsoallows users to verify whether environmental conditions are being properly maintained in the housing units.
Examples of substation visualization using the PCVuesupervisor (+site geolocation):
Examples of how Enless Wireless temperature and humidity sensors are displayed via the PGC Datamanagement platform:
First Enless Wireless Pulse ATEX transmitters designed for the remote collection of building gas consumption data have also been deployed. More are on the way.
As part of the project, PCG developed a custom control panel to facilitate the management of each substation.
Clément Pedrot, a design engineer at PGC, says: “I’ve been working with Enless equipment for nearly three years now, across a range of technologies: Sigfox, Wireless M-Bus… Enless Wireless sensors are extremely reliable. Their systems communicate flawlessly. I’ve never encountered any issues with Enless Wireless transmitters, even in large-scale projects.”
What is the assessment at this stage?
“The project, which has been carried out in a phased, step-by-step manner across several groups of lots, is now nearly complete. Given current energy prices, the cost will be recouped very quickly,” says Clément Pedrot, design engineer at PGC
The benefits are already evident in terms of responsiveness for the customer, who is now able to react quickly in the event of threshold exceedances or equipment failures, particularly in HVAC systems. Information is available immediately, and the state-of-the-art nature of the systems and facilities ensures complete satisfaction.
Building on this joint project with Enless Wireless, PGC is currently developing a 100% cloud-based architecture for the control and management of facilities. This should enable smaller organizations (landlords, condominium associations, healthcare facilities, schools, etc.) to implement a comprehensive energy management tool (temperature monitoring, energy consumption tracking, etc.) that is standardized (a “plug-and-play” solution deployable regardless of boiler room specifications), sustainable, and easily transferable to third-party technical teams.
About PGC – Process Génie Climatique
A company specializing in energy management since 2005, PGC offers turnkey automation and control solutions for HVAC systems (hardware and software solutions).
Comprised of a group of companies with a total workforce of about 30 employees, PGC generates nearly €3 million in annual revenue in the electrical and BMS automation sectors.
Based in the Val d’Oise region near Cergy, PGC works on projects in the service sector (50%) and the industrial sector (50%). Most of the sites where PGC teams operate are located in the Paris region or Normandy. Building on this experience, PGC is currently developing a 100% cloud-based architecture for the control and monitoring of facilities,
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