US Senate rejects bill targeting AI data centre electricity costs

The United States Senate has rejected a bill that would have required state regulators to consider shifting more of the infrastructure costs linked to data centres and other large electricity users onto those facilities. The measure failed by 57 votes to 43, falling short of the 60 votes needed to overcome a filibuster. The vote marks a setback for lawmakers seeking to address rising power bills tied to the rapid expansion of artificial intelligence infrastructure.

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The proposal, known as the Ratepayer Protection Act, had already cleared the House of Representatives earlier this month by 417 votes to three. It was described as a bipartisan effort, but it drew sharp criticism from Senate Democrats, who said it did not contain enough consumer protections. Senate Democratic leader Chuck Schumer called the bill "toothless" and argued that it did not go far enough to make data centres pay for the electricity infrastructure upgrades they require.

Only four Democrats - Maggie Hassan, Amy Klobuchar, Jon Ossoff and Raphael Warnock - joined Republicans in support of the measure. Supporters said the bill would have helped ease the burden of higher electricity costs on households, while opponents argued that merely asking regulators to consider a federal utility rate standard was too weak. Some critics also portrayed the legislation as a late-stage Republican attempt to secure a policy win before the November midterm elections.

The vote comes as the AI boom continues to drive demand for data centres, which provide the computing power needed for the technology. Some estimates put the number of data centres in the United States at as many as 5,400, and critics say their energy use is contributing to higher electricity costs. That has made the issue increasingly relevant for consumers, utilities and state regulators, especially in areas where new facilities require major upgrades to the power grid.

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The debate also reflects a broader split over how to manage the costs of digital infrastructure growth. Democrats in the Senate argued that stronger mandatory measures are needed to protect consumers from rising bills, rather than a system that only asks states to consider action. Republicans and supporters of the bill framed it as a way to ensure large electricity users bear more of the costs they create, but the failed vote leaves that approach without Senate approval for now.

What happens next is unclear, including whether lawmakers will return with a revised proposal that includes stronger consumer protections or mandatory cost-shifting rules. The issue is likely to remain politically sensitive because it sits at the intersection of energy prices, AI expansion and household affordability. For now, the Senate defeat means the House-passed measure will not advance, and the wider fight over who pays for the infrastructure behind data centre growth is set to continue.

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