How to meet the obligations of the BACS decree?

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The BACS (Building Automation & Control System) decree, which came into effect in July 2020,

requires owners of commercial buildings to install a building automation and control system. The solution developed by Energisme perfectly meets this regulatory obligation and is part of the approach to optimize the energy performance of buildings.

What is a Building Automation & Control System (BACS)?

A BACS refers to a building automation and control system. In concrete terms, such a system relies on a set of devices (metering devices, IoT sensors, …) and software solutions to monitor and automatically control the building’s energy performance.

BACS perform 4 essential functions in building energy management:

  • Collect, process, analyze and record data on the building’s energy consumption
  • Adjust the energy consumption of the site in real time according to the needs
  • Compare the building’s energy performance to reference values to identify energy saving opportunities, detect malfunctions and alert the people in charge of the equipment concerned
  • Communicate with the other technical systems of the site (air conditioning, heating, ventilation, etc.) and control them remotely

The N’Gage platform, developed by Energisme, acts as a BACS. It provides these 4 functions and supports property managers and operators in the smart building dynamic.

What are the objectives and challenges of the BACS decree?

An environmental transition issue

An environmental transition issue

The BACS decree requires owners of affected tertiary buildings to equip themselves with a building automation and control system by January 1, 2025. 

It is in line with the tertiary decree of July 25, 2019. Indeed, this decree makes the reduction of energy consumption in tertiary buildings a powerful lever to respond to the climate emergency.

In France, the building sector is responsible for 44% of energy consumption. Since tertiary buildings represent about half of the building stock, they are a prime target for the implementation of energy efficiency and/or renovation actions.

The BACS decree appears to be the “operational arm” for achieving the energy reduction targets set by the tertiary decree. Indeed, the energy analysis and the use of standardized protocols are prerequisites for an optimized building management system (BMS).

Through the centralization of data and energy analysis of the building, the Energisme platform supports decision-making in terms of energy management and renovation.

A performance driver

A performance driver

In addition to the regulatory obligation, the BACS decree is also a performance driver for building owners. 

Building automation and control systems offer new opportunities to reduce energy costs by:

  • Automating the energy analysis of the site’s technical systems
  • Controlling the energy performance of the building
  • Accelerating the maintenance of defective equipment

The installation of a BACS strengthens the energy management of buildings. By relying on the system, it is now possible to produce only the energy that is absolutely necessary for all the uses of the building.  

In this sense, BACS extends the BMS actions already in place. It also facilitates energy renovation works through a better detection of efficiency losses.

The Energisme solution goes even further. In addition to monitoring and automating the building, it can predict the effect of renovation actions in terms of energy savings and cost.

Which buildings are affected by the BACS decree?

The BACS decree concerns all tertiary buildings (e.g. hospitals, offices, shops, sports facilities, etc.)

However, the decree provides for an exception. An owner may be exempted from the obligation to install a BACS if they produce a study proving that the installation is not feasible with a return on investment of less than 6 years.

New or already existing

with an air-conditioning or heating system, either with or without a ventilation system, whose cumulative power is greater than 290 kW.

How to set up a building automation and control system?

The implementation of an automation and control system requires the connection between the software solution and existing or new metering devices. This will allow the system to retrieve real-time energy consumption data from the building to perform an in-depth energy analysis.

Once processed and analyzed, this data will provide the owner with accurate information on the building’s energy performance. It will allow him to detect energy losses and to design an action plan to improve the energy efficiency of the site.

In addition to data processing, BACS also provides for the remote control of equipment. Upstream, the system must be connected to the site’s technical systems (ventilation, heating, air conditioning).

The Energisme building automation and control system

The solution developed by Energisme meets the needs of owners of tertiary buildings by anticipating the compliance with the BACS decree. 

It not only allows the centralization of the energy data of a building stock, but also to visualize in detail the energy consumption of each building. 

Moreover, the cross-referencing of data from suppliers and network managers with data from intelligent sensors and external data makes it possible to perform predictive analysis of consumption, which is a prerequisite for energy efficiency actions.

The Energisme platform relies on a complete control of the data path to :

Support you in collecting energy data
provide dashboards on your energy performance and trigger alerts based on business profiles
develop action plans for better energy efficiency

Download the BACS decree's use case