Energy-efficient AI, battery storage systems, and renewed interest in nuclear have reshaped how data centers generate, consume, and manage energy. A new report from the IEA assesses how the relationship between energy and artificial intelligence (AI) is evolving rapidly, drawing on the latest data and analysis and close tracking of technological and economic developments in the AI sector. Building on the IEA's landmark Energy and AI report. According to the International Energy Agency (IEA), data centres are responsible for about 1. 5%, or 415 Terawatt-Hours (TWh), of the world's total yearly electricity consumption. Current simulation tools also include.