Exoscale, a cloud service provider, is paving the way for sustainable data center cooling by repurposing waste heat, focusing specifically on artificial intelligence (AI) workloads. Through a partnership with the Austrian firm Diggers, Exoscale is adopting innovative liquid cooling technologies to significantly lower energy consumption and carbon emissions.

The demand for energy in data centers is escalating, driven largely by AI applications that require considerable processing power. In Germany, data centers are reported to consume about 20 billion kilowatt hours of electricity each year. Cooling systems contribute 20% to 25% of this energy usage, underscoring the importance of improving cooling efficiency for both cost savings and environmental considerations.

Mathias Nöbauer, CEO of Exoscale, emphasized the importance of energy efficiency, stating that liquid cooling is gaining traction in the industry. However, its adoption has been hindered by costs and the underutilization of waste heat. "If we can achieve significant sustainability gains with a reasonable cost-benefit ratio, utilizing waste heat from our data centers makes absolute sense,” he remarked. Diggers’ system captures heat directly from AI GPUs and processors and uses thermodynamic principles to transfer it, with the potential to repurpose up to 98% of the captured heat for applications like district heating.

The deployment of Diggers’ cooling technology is easy, requiring only a power source and a water connection, making it suitable for both new and existing data centers. Notably, the system employs aluminum components to enhance durability and reduce maintenance.

As the importance of energy-efficient management becomes more evident, Martin Resel, the Chief Commercial Officer of A1 Enterprise, pointed out that Diggers’ solution has yielded approximately 30% energy savings, contributing to more sustainable cloud and AI operations.

The environmental issue posed by data centers is significant, with their CO2 emissions surpassing those of the global aviation sector. Martin Schechtner, CEO of Diggers, emphasized that immediate action is required, stating that their deployment at A1’s facility demonstrates a viable approach toward making data centers more sustainable.

Intel’s EMEA CTO, Jean-Laurent Philippe, highlighted that the need for energy efficiency in AI and cloud environments is growing. He supported initiatives such as Diggers’ liquid cooling system, which not only reduces power consumption but also recycles waste heat efficiently.

As AI continues to expand and regulations become stricter, technologies that enhance energy efficiency will be crucial in harmonizing performance with sustainability goals. The partnership between Exoscale and Diggers marks a significant stride toward developing greener data center operations, setting a precedent for future innovations in the field.

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