At its PAR01 data center campus in Marcoussis, Data4 is reinventing the future of digital infrastructure with an ambitious retrofit of its DC01 data center. A pioneer in terms of eco-design, this project aims to combine energy efficiency and environmental responsibility, while increasing the power capacity available to customers.
The target: a 15% reduction in PUE
Power Usage Effectiveness (PUE), a key indicator of a data center’s energy efficiency, is at the heart of this transformation. With this project, Data4 plans to reduce the DC01’s design PUE by around 15%, a reduction that will deliver major energy savings. How do we achieve this? By investing in innovative technologies and optimized cooling systems.
The key transformation levers
- Free cooling and free chilling: Data4 is equipping air handling units with free cooling systems to use the cool outside air. The cooling units are being equipped with free chilling systems to maximize efficiency.
- Air recyclers with high-efficiency motors: existing motors are replaced by variable-speed models, adjusting the air flow as required.
- New-generation inverters: these devices are increasing their output from 94% to 97%, boosting overall efficiency.
- Room containment: by channeling cold air directly onto the equipment, containment further reduces PUE.
A controlled environmental impact
Data4’s commitment to the environment is also reflected in its eco-responsible choices:
- Replacement of refrigerants: switching from R134 (GWP = 1,430) to R1234ze (GWP = 6) is a major step forward in reducing emissions.
- Improved transformers and lights: new transformers offer higher output, and LED lights replace older, energy-hungry solutions.
Increased capacity
In addition to energy efficiency, retrofitting brings a significant increase in available power. The capacity is increasing from 900 W/sq.m to 1,200 W/sq.m (2,400 kW), to meet customers’ growing needs for energy resources.
A complex site in an occupied environment
Conducted in two phases, the project is set apart by its complexity: the work is being carried out in an occupied environment, with a major French bank as the main customer on site. The first phase covers air handling systems and electrical equipment, while the second involves the installation of dry cooler batteries. These steps guarantee business continuity and maintain a good level of humidity in the room.
An emblematic project for the sector
With lower energy bills expected within the first two months, this initiative marks a turning point for Data4 and for the data center industry as a whole. The DC01 retrofit is just the first step in a general strategy, with similar projects planned for the DC02, DC03 and PAR02 sites. By combining technological innovation and ecological responsibility, Data4 is consolidating its role as a leader in the transition to sustainable digital infrastructure.
