Clean Commitments, Clean Data Centres?
5 Oct 2026
The rapid expansion of artificial intelligence is driving a parallel expansion of the infrastructure on which it depends. Data centres consumed around 415 terawatt-hours (TWh) of electricity in 2024, roughly 1.5% of global demand, and the International Energy Agency's base case projects about 945 TWh by 2030. Governments in the Gulf and Europe have responded by treating data centres as strategic assets while remaining committed to decarbonising their energy systems. Yet a commitment to clean energy does not necessarily amount to clean data centres.
This distinction is becoming increasingly important because the timelines differ so sharply. A data centre can be built in one to two years, whereas transmission takes far longer and new clean generation, nuclear in particular, longer still. When demand arrives before supply, the gap tends to be filled by gas. Ireland illustrates the dilemma: data centres accounted for 23% of its metered electricity in 2025, up from 5% in 2015, and the regulator now requires new large facilities to bring their own generation or storage. The central question, therefore, is whether AI infrastructure and the green transition can advance together.
