Commercial buildings account for nearly 25% of France's energy consumption. Improving their energy efficiency is therefore a major challenge for reducing costs and environmental footprint.

Strategies for improving energy efficiency

Thermal insulation
Good insulation of walls, roofs, floors and openings is the first step in limiting heat loss and heating/cooling requirements.

Efficient heating/air-conditioning systems Replace old boilers with new ones.
Replacing old boilers with high-efficiency equipment (heat pumps, condensing boilers, etc.) offers major savings.

Intelligent energy management
Installing regulation, programming and consumption monitoring systems (BMS/TCM) optimizes the use of heating, ventilation, lighting, etc.

LED lighting and daylighting
Replacing energy-hungry light bulbs with low-energy LEDs and encouraging natural light greatly reduces the need for artificial lighting.

Technologies and innovations

Positive-energy buildings
Thanks to bioclimatic design, reinforced insulation and energy-saving equipment, these buildings produce more energy (solar, etc.) than they consume.

High-performance insulating materials
New insulating materials such as aerogels, glass foams and vacuum insulation offer super-insulation in low thicknesses.

Internet of Things (IoT)
Sensors, automated systems and connected objects enable fine, real-time control of equipment to optimize consumption.

Energy storage
Batteries, hydrogen and other stationary storage technologies enable self-consumption of the energy produced.

Examples of successful renovations

The BNP Paribas head office in Issy-les-Moulineaux reduced its energy consumption by 35% after a complete renovation: insulation, LED lighting, heat recovery, etc.

The Musée des Confluences in Lyon, a low-energy building, produces 50% of its energy needs thanks to 3,000 m² of solar panels.

The Occitanie Tower in Toulouse reduced its energy bill by 40% following the installation of intelligent building management systems.

With the right strategies, technologies and support, any building can significantly improve its energy efficiency.