US heatwave strains power grids as AI data centres boost electricity demand

A prolonged heatwave sweeping across much of the United States this week has pushed regional power grids to the brink of capacity, with utility operators reporting record‑high electricity loads. While residential air‑conditioning accounts for the bulk of the surge, grid analysts say the expanding power consumption of artificial‑intelligence (AI) data centres is increasingly contributing to the strain, as these facilities require large, continuous cooling and processing power to support machine‑learning workloads.

Grid operators in California, Texas and the Midwest have disclosed that AI‑driven compute clusters added an estimated 5‑7 percent to peak demand during the hottest days, prompting precautionary measures such as demand‑response alerts and temporary curtailments for non‑essential industrial customers. The Federal Energy Regulatory Commission has noted the trend in its latest reliability report, emphasizing the need for additional transmission upgrades and renewable‑energy integration to accommodate the projected growth of AI infrastructure. Stakeholders are monitoring the situation closely as utilities prepare for future temperature extremes and the accelerating deployment of high‑performance computing facilities nationwide.