Air Conditioning, Not Data Centers, Driving Global Energy Demand Growth

Air conditioning will contribute more to rising global energy demand than data centers through 2030, according to an International Energy Agency. While attention has focused on computing power consumption, the IEA projects data centers will account for less than 10% of increased energy demand by 2030, significantly less than space cooling requirements. Global cooling degree days, a measure of air conditioning need, were 6% higher in 2024 than 2023 and 20% above the long-term average for the first two decades of the century.

China, India and the United States saw particularly sharp increases. Air conditioning represented 7% of global electricity consumption in 2022, with some U.S. regions reporting that cooling can comprise over 70% of residential energy use during peak periods. The number of air conditioning units worldwide could nearly triple from fewer than 2 billion in 2016 to approximately 6 billion by 2050, creating a growing challenge for power grids.