As heat wave spreads across the US, data centers strain electrical grids
A widespread heat wave across the U.S. is severely straining electrical grids, exacerbated by the high energy and cooling demands of rapidly expanding AI data centers. Tech CEOs acknowledge the problem, as data centers require more energy precisely when the grid is most stressed, leading to concerns about power outages and growing public opposition to their development.
A severe heat wave is currently sweeping across two-thirds of the U.S. population, affecting over 250 million people from the Midwest to the East Coast. Expected to worsen throughout the week, cities like Newark, New Jersey, and Philadelphia, Pennsylvania, anticipate temperatures of 105 degrees Fahrenheit, while parts of Virginia and North Carolina brace for multiple consecutive days of 100-degree heat. This U.S. heat wave, like a recent one in Europe that caused over 1,300 excess deaths, is attributed by scientists to climate change.
While air conditioning is a necessity for households during these extreme temperatures, the surge in AI data centers across the U.S. since 2023 is significantly compounding the strain on power grids. These data centers demand immense amounts of energy, water, and cooling, with over 1,500 currently in development. Virginia, with more than 600 operational data centers, has the highest concentration nationwide and is expected to face some of the highest temperatures this week.
Data centers currently account for approximately 4.5 percent of the total U.S. electricity consumption, a figure projected to exceed 10 percent by 2030. Scientists have also observed that data centers create "heat islands," elevating temperatures in surrounding areas. Mishal Thadani, CEO of AI platform Rhizome, highlighted the challenge to CNBC, stating that data centers' peak energy needs for cooling coincide with the grid's lowest available capacity during extreme heat.
Regional grid operators in the U.S. are anticipating record electricity demands this week, raising the risk of blackouts, which can more than double heat-related mortality rates. Consequently, public awareness of the threats posed by data centers is growing, leading to increased opposition and campaigns to halt their further expansion.