Data centers are the invisible engines of the digital economy. Every streamed video, cloud transaction and artificial intelligence (AI) query relies on racks of servers running continuously, generating vast amounts of heat in the process. As global data volumes surge, the challenge of keeping these facilities cool, reliable and sustainable has become one of the sector’s defining issues.
According to the International Energy Agency (IEA), data centers could consume up to three percent of global electricity demand by 2030, driven largely by AI workloads and growth in high-performance computing. At the same time, while data centers enable digital innovation, their escalating energy demand presents a growing sustainability paradox that should not be ignored.
Traditionally, air cooling has been the default approach for data centers. However, higher rack densities and AI-driven processing loads are pushing air systems to their physical limits. Cooling already accounts for a substantial share of total power draw, typically representing 30–40 percent of a data center’s electricity consumption according to the World Economic Forum (WEF). This is second only to the IT equipment itself.
The resource implications extend beyond electricity. For instance, a Washington Post analysis highlighted that generating a single 100-word email using generative AI can require the equivalent of a bottle of water to manage server temperatures. This illustrates the hidden water footprint behind digital services.
