AI growth hitting the grid

A new artificial intelligence data center is not just a warehouse full of computers anymore. In 2026, the harder part is often finding hundreds of megawatts of electricity, getting transmission approved, and convincing neighbors to accept the noise, water use, and backup generators. (energy.gov, belfercenter.org) The scale is the surprise. The U.S. Department of Energy says data centers used about 176 terawatt-hours of electricity in 2023, up from 58 terawatt-hours in 2014, and could reach 325 to 580 terawatt-hours by 2028. (energy.gov) That would push data centers from about 4.4% of all U.S. electricity in 2023 to roughly 6.7% to 12% by 2028. When one industry starts heading toward one-tenth of the grid, site selection stops being a real-estate decision and starts being a power decision. (energy.gov) The bottleneck is not only making electricity. The International Energy Agency’s February 6, 2026 power outlook says grids and flexibility are now central issues as demand rises from electrification, artificial intelligence, and data centers at the same time. (iea.org) That is why developers keep chasing places with spare capacity, existing substations, and faster interconnection queues. Harvard’s Belfer Center wrote in February 2026 that in some U.S. regions, artificial-intelligence-driven demand is already outpacing available capacity and forcing companies to delay projects or install on-site natural gas engines. (belfercenter.org) The politics get local fast. An Associated Press report on April 9, 2026 said Nevada’s biggest utility warned that data-center demand could keep it from meeting the state’s 2030 clean-energy target, while residents raised complaints about noise, water supply, and power bills. (apnews.com) Virginia shows what happens when a region becomes too successful at attracting server farms. A Virginia Court of Appeals ruling reported in April 2026 invalidated permits for the Prince William Digital Gateway project near Manassas National Battlefield Park, blocking construction unless the decision is overturned. (nationalparkstraveler.org) Grid operators are feeling the strain in real time. The Belfer Center says a voltage fluctuation in Northern Virginia in July 2024 caused 60 data centers to disconnect at once, creating a sudden 1,500-megawatt power surplus that required emergency action to avoid wider instability. (belfercenter.org) States are starting to rewrite the rules for giant new loads. Texas Senate Bill 6, signed in June 2025, set new requirements in the Electric Reliability Council of Texas for large customers above a 75-megawatt threshold, including financial commitments and disclosures tied to interconnection planning. (capitol.texas.gov, mayerbrown.com) The companies building artificial intelligence are reacting by moving upstream into power itself. Microsoft signed a 20-year deal in September 2024 to support the restart of Three Mile Island Unit 1, which Constellation says would return about 835 megawatts to the grid, while Google signed an October 2024 agreement with Kairos Power for up to 500 megawatts of advanced nuclear capacity by 2035. (constellationenergy.com, kairospower.com) Amazon made the same turn in October 2024 by backing X-energy in a roughly $500 million financing round tied to advanced small modular reactors. When cloud companies start funding reactors, they are saying the scarce input is no longer computer chips alone but dependable electricity delivered on time. (x-energy.com) Even the price effects are showing up around these clusters. NPR reported on April 9, 2026 that wholesale electricity prices rose 267% over the last half decade in places close to data centers, fueling backlash over who should pay for the wires, substations, and generation needed for the boom. (northcountrypublicradio.org)