The digital backbone of the EMEA region is expanding at an unprecedented rate, with the total data centre capacity now exceeding a staggering 24 Gigawatts (GW). This explosive growth, driven by the insatiable demand for cloud computing, Artificial Intelligence (AI), and high-density workloads, is pushing the boundaries of traditional data centre design and, critically, accelerating innovation within the HVACR sector. As capacity expands and efficiency demands intensify, the challenge of maintaining optimal thermal conditions without breaking the bank or the planet is more pressing than ever.
Recent reports from leading real estate and data centre advisory firms, including Cushman & Wakefield, highlight a remarkable 43% annual growth in EMEA’s total data centre capacity pipeline, reaching 24.4GW. While the established “FLAPD” markets (Frankfurt, London, Amsterdam, Paris, and Dublin), now joined by Milan, remain dominant, representing over 45% of current capacity, a significant shift is underway. Emerging Tier 2 cities across the Nordics, Southern Europe, and the Middle East & Africa are experiencing rapid acceleration, fueled by improved infrastructure, regulatory reforms, and the relentless march of digitalisation. Lisbon, propelled by its massive 1.2GW Start Campus project, has even matured from an “emerging” to an “established” market.
“The sheer scale of this expansion is incredible, and it’s putting immense pressure on every aspect of data centre infrastructure, none more so than cooling,” observes Omar Khan, a veteran HVACR consultant specialising in mission-critical facilities across the GCC. “AI workloads, in particular, demand significantly higher power densities, meaning more heat in smaller footprints. This isn’t just about keeping things cool; it’s about doing it sustainably, reliably, and with optimal energy efficiency.”
HVACR’s Evolving Role in a High-Density Future:
The surge past 24GW is forcing data centre operators and HVACR solution providers to rethink cooling strategies. Traditional air-cooling methods, while still prevalent, are increasingly being challenged by the requirements of high-performance computing (HPC) and AI:
- Liquid Cooling Takes Centre Stage: For high-density racks housing powerful GPUs, liquid cooling solutions – including direct-to-chip, rear-door heat exchangers, and even full immersion cooling – are no longer niche. They are rapidly becoming the default for new builds and crucial retrofits. These systems offer far superior heat removal capabilities compared to air, allowing for denser server deployments and reduced energy consumption for cooling. HVACR experts are now designing complex liquid distribution units (CDUs) and managing dielectric fluids.
- Free Cooling and Economisation: With sustainability a top priority, data centres are maximising the use of free cooling wherever climatic conditions permit. This involves leveraging cooler outside air or water (indirect free cooling, evaporative cooling) to reduce reliance on mechanical refrigeration. In the Nordics, this is a natural advantage, while in warmer climates like the Middle East, adiabatic cooling and advanced evaporative cooling techniques are gaining traction to pre-cool air.
- Precision Cooling and Airflow Management: The focus remains on precise temperature and humidity control within critical spaces. Advanced Computer Room Air Conditioners (CRACs) and Computer Room Air Handlers (CRAHs) are evolving with improved airflow management, variable speed drives (VFDs) on fans and pumps for optimised energy use, and sophisticated control systems that respond dynamically to IT load changes.
- Waste Heat Recovery: As part of broader circular economy initiatives, data centres are exploring avenues for waste heat recovery. The rejected heat, traditionally vented, can be repurposed for district heating, pre-heating water, or even in industrial processes. This significantly improves the overall energy efficiency of the facility and reduces its environmental footprint.
- Modular and Scalable Solutions: The rapid deployment demands mean HVAC systems must be highly modular and scalable. Containerised data centre solutions, pre-engineered cooling modules, and adaptable cooling architectures allow for faster deployment and easier expansion as capacity needs fluctuate.
- Power and Grid Constraints: A significant challenge across EMEA is securing an adequate power supply and grid connections. This is pushing data centre developers to consider locations with abundant renewable energy potential or explore on-site power generation solutions, including small modular reactors (SMRs) in the long term. HVAC systems must be designed to be extremely power-efficient to maximise the available grid capacity.
As the EMEA data centre market continues its exponential growth, the HVACR industry stands at the forefront of innovation. The demand for resilient, energy-efficient, and sustainable cooling solutions will only intensify, cementing HVACR’s role as a critical enabler of the digital future.