Data Center Power Demand Strains U.S. Electricity Grid

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Data Center Power Demand Strains U.S. Electricity Grid

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The escalating power demands of data centers, particularly those supporting artificial intelligence and cloud computing, are placing considerable strain on the U.S. electricity grid. In 2024, data centers in the U.S. consumed approximately 183 TWh of electricity, representing more than 4% of the nation’s total electricity usage. Projections indicate a substantial increase, with some analyses suggesting data centers could account for about 20% of the country’s electricity consumption by 2035. This surge is an 83% increase from forecasts made just months earlier in December.

The growth in demand is driven by the intensive computational needs of AI workloads and the continuous expansion of digital infrastructure. For instance, the power required for AI data centers is estimated to grow more than thirtyfold between 2024 and 2035, reaching 123 gigawatts. This rapid expansion is leading to concerns about grid reliability and the need for significant new generating capacity. Analysts from Bank of America estimate that data centers alone could add approximately 125 GW of U.S. electric load through 2031, while regulated utilities are only expected to add about 93 GW of accredited supply in the next five years, creating a gap of over 100 GW.

The geographic concentration of data centers, particularly in regions like Northern Virginia and Texas, exacerbates local grid stress. In response to these challenges, some areas are seeing pushback against new data center developments. New York, for example, enacted a one-year moratorium on large data center construction in July 2026 to evaluate their environmental impact. The electricity powering these data centers currently comes primarily from fossil fuels (56%), with renewables contributing 22% and nuclear 21%. The industry faces the challenge of not only meeting the increased demand but also doing so sustainably, as the growth of data centers is delaying coal plant closures and hindering clean energy transitions in some areas.

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