Data centers now use 6% of U.S. power

Data centers are no longer just another big industrial load. In the U.S., they are now large enough to shape utility planning, transmission queues, local politics, and project delivery schedules all at once. The latest estimate putting them at about 6% of U.S. electricity use matters less as a headline than as a threshold: once a single customer class gets that large, every delay in generation, transmission, and interconnection starts showing up somewhere else on the system. (datacenterknowledge.com) The immediate point is scale. The International Data Center Authority said this week that U.S. data centers account for 29.2 gigawatts of load, or about 43% of global data-center electricity consumption, and roughly 6% of total U.S. electricity use. EPRI’s 2026 scenarios put today’s national share a bit lower, at 4% to 5%, but project it rising to 9% to 17% by 2030. Taken together, those figures show the same direction of travel even if the exact current share differs by methodology. (datacenterknowledge.com) That growth is colliding with the speed of the power system. IT Pro reported that transmission build-outs are typically five to ten years away in many markets, while Wood Mackenzie said more than 90 gigawatts of colocated generation is now sitting in U.S. interconnection pipelines. The reason developers are pursuing that route is simple: waiting for a conventional grid connection can take longer than the commercial window for a new AI campus. (itpro.com) So the industry is changing the way projects get delivered. Instead of treating “finished” as one date, developers increasingly have to break a site into separate gates: construction completion, commissioning completion, utility energization, and authorized load ramp. A building can be mechanically complete but still waiting on a substation upgrade, a curtailment agreement, a generator permit, or permission to ramp to full IT load. That sequencing is an inference from the reported interconnection bottlenecks, colocated-generation push, and flexible interconnection arrangements now being discussed across the sector. (itpro.com) The pressure is not only technical. Consumer Reports said on May 22 that state utility regulators are weighing electric-rate increases that could cost customers billions, with the AI data-center boom among the drivers. IDCA also said multiple markets have crossed its 6.25% grid-consumption threshold, which it associates with policy backlash. In practice, that means data-center power is now a ratepayer story and a permitting story, not just a capacity-planning story. (consumerreports.org) There is also a geographic concentration problem. EPRI said Virginia is already the only state where data centers consume more than 20% of electricity today, and under its medium scenario seven more states could cross that 20% threshold by 2030. That helps explain why local fights over substations, backup generation, water use, and transmission corridors are becoming more visible: the national number is important, but the system strain is regional and often highly local. (powering-intelligence.epri.com) The practical takeaway is that power strategy is now part of core data-center execution. Operators are no longer just procuring utility service; they are assembling portfolios of grid power, on-site generation, storage, curtailment, and phased load approvals to get capacity when they need it. EPRI’s outlook suggests the issue will intensify rather than fade, with data centers potentially taking as much as 17% of U.S. electricity by 2030 in its high case. (restservice.epri.com)