The Light BMS revolutionizes the renovation of tertiary buildings
The Building Management System is a fearsome tool against energy waste. However, these solutions are often hard to install and manage.
Indeed, we estimate that 70% of the installed BMS would be poorly or not used at all.
So how can we give power back to building operators and enable them to save energy?
What is a BMS?
In the classical sense, the Building Management System is a digital tool that contributes to reduce energy waste in a tertiary building and thus improve energy performance.
BMS: How does it work?
The Building Management System automates the uses of high-drain devices in the building, such as air conditioning, heating, ventilation or light. The building is thus connected AND smart, which means that he can be adapted to the habits of the occupants in order to optimize as much as possible energy consumptions.
For instance, if the building attendance is exceptionally low (due to seasonality or an event), the BMS can adapt the production of heat and cold.
Building monitoring and steering
Superviser son bâtiment signifie que l’on sait à l’instant T ce qu’il consomme et les postes à surveiller. En fonction des besoins, il est possible de savoir si une pièce est occupée, si une fenêtre est ouverte/fermée, si la qualité de l’air d’une salle de classe est bonne, ou bien la température des bureaux. Toutes ces informations sont visibles sur un portail d’hypervision (on peut généralement regrouper plusieurs bâtiments sur le même écran). Cela rend les informations du bâtiment claires et lisibles pour une meilleure exploitation.
A Building Management System not only allows data collection on consumption (temperatures, air quality, state of opening doors/windows, humidity rate, measurements of consumables, etc.), but above all, it is able to smartly control energy-consuming devices in order to stick to pre-established scenarios.
For instance: “I would like my offices to always be at 22°C regardless of the outside temperature.” The system will not only tell me that the temperature is too high or too low, it will also automatically adjust the air conditioning or heating to reach the required 22°C.
The BMS in building maintenance
Well used, the BMS can help to extend the lifetime of equipment, especially by giving maintenance, failure or drop in performance information.
Thus, if a device is detected as less performant or with an usual consumption, a maintenance alert will be sent to prevent from a possible failure and avoid a useless overconsumption. We can thus talk about predictive maintenance.
The 4 performance classes of a BMS
The EN-15232 European standard called “Buildings energy performance - Impact of building automation, controls and building management”, frames the use and performance of a BMS. In order to determine possible energy savings thanks to the installation of a BMS in a building, the standard defines 4 performance classes of a BMS.
-CLASS A: regulation and high energy performance BMS
-CLASS B: regulation and advanced BMS
-CLASS C: regulation and basic BMS, usually taken as reference
-CLASS D: regulation and BMS limited to basic on/off or manually controlled features. It will include buildings that have not been renovated, equipped with old equipment or with limited investments.
"Traditional" BMS limits
BMS installed without final users being able to use them (complexity, lack of training and documentation).
BMS used for control but rarely for steering (bad operation of the system)
We thus estimate that 70% of installed BMS would be misused or not used at all!
On the other hand, traditional BMS are usually installed during the construction of a building or during major renovations because they require complex works and technical installations. The power and complexity of these solutions also explain the often dissuasive costs per sqm.
“Light” BMS advantages
As an alternative to powerful and heavy BMS installation, there are now so-called light BMS, based on the technology of connected objects (Internet of Things - IoT), which offer several advantages:
These BMS, such as the Light Smart & Connective BMS, are perfect for the renovation of tertiary buildings. It represents 983 million sqm in France, including 800 million sqm that are submitted to the tertiary and BACS decrees.
Nowadays, only 8% of tertiary buildings are equipped with a BMS.
No works needed
Quick and easy installation for the integrator – no code
Simplified final user handling (user friendly portal, creation of autonomous energy saving scenarios..)
Adapted to tertiary buildings such as offices, schools, hotels, public buildings..
The Light BMS Smart & Connective goes even further !
In order to create even more efficient scenarios to maximize energy savings, the Light BMS Smart & Connective is installed at rooms level.
It allows in particular to base scenarios on human occupancy, window opening or air quality.