BACS Decree: Obligations and solutions for the tertiary sector

The BACS decree, for Building Automation and Control Systemsaims to generalize the systems of smart piloting technical equipment in the service sector. It is part of the national strategy to reduce energy consumption and associated emissions.

Specifically, it mandates the installation of systems capable of:

• to track and analyze the energy consumption,
• detect the deviations and anomalies of operation,
• to automatically control equipment according to usage,
• to ensureinteroperability between the systems.

"The BACS decree marks a key step in the digital and energy transformation of the commercial building sector."

Which buildings are affected by the BACS decree?

The perimeter is clearly defined by the cumulative rated power heating or air conditioning systems. Two thresholds structure the regulatory timetable.

Buildings above 290 kW

• New buildings : obligation since 2021
• Existing buildings : obligation to 1st January 2025

Buildings above 70 kW

• New buildings : obligation since 2024
• Existing buildings : obligation to 1st January 2027

These requirements apply to the entire tertiary : offices, educational establishments, shops, administrative or health buildings.

Measurable targets for energy performance

The BACS decree is not limited to a regulatory constraint. It pursues quantified objectives, with estimated energy savings of between 10 and 25%, depending on the building configuration and the level of automation implemented.

The expected benefits are numerous:

• a sustained decrease in consumption
• best control of operating costs,
• improvement of thermal and visual comfort,
• asset valuation of real estate assets.

"Automation allows equipment to be adjusted in real time to the actual uses of the building."

Automated sun protection: a strategic lever

Among the solutions compatible with the BACS decree, the automated sun protection occupy an increasingly strategic position. Long considered as comfort features, they are now becoming true energy management tools.

A direct impact on air conditioning needs

By acting on solar energy input, these devices make it possible to:

• reduce air conditioning needs by up to 30%,
• to limit summer overheating,
• stabilize indoor temperatures.

In certain configurations, the gain in comfort can reach - 7 ° C, depending on the orientation and sunlight.

Intelligent management of natural light

Combined with sensors and a BACS system, automated sunshades adjust their position according to:

• sunshine,
• the outside temperature,
• the occupation of spaces.

They thus help to optimize natural lighting, while reducing consumption related to artificial lighting.

"Automated solar shading transforms the facade into an active component of energy performance."

Funding: Available aid

Compliance with the BACS decree represents an investment, but... support mechanisms They exist to support the projects. Energy Savings Certificates (ESC) can in particular contribute to the financing of automation and energy management solutions.

This approach improves the overall profitability projects and accelerates their deployment in the existing park.

A topic central to feedback and experience

The BACS decree is generating increasing interest among stakeholders in the building and facade sectors. dedicated podcast A presentation on regulatory challenges and passive solutions will be announced soon, with the participation of Schenker Stores France et EHRET France.

The goal: to share concrete feedback from experience and to decipher the solutions already operational on the ground.

Anticipate in order to transform constraints into opportunities

With the 2025 and 2027 deadlines approaching, the BACS decree is emerging as a lever of transformation of the office park. Far from being a simple obligation, it encourages a comprehensive approach combining self-regulating automation techniquesPassive solutions and intelligent control.

By integrating equipment such as automated sunshades today, service sector players can anticipate compliance, improve user comfort and sustainably integrate their buildings into a trajectory of controlled energy efficiency.