AINEWS
Sen. Martin Heinrich (D N.M.) wants large data center operators to cover the transmission upgrades their campuses trigger, and is anchoring the bill to a potential 2027 Democratic Senate takeover that would make him Energy committee chair.
The most expensive part of plugging a new hyperscale data center into the U.S. power grid is the high-voltage transmission upgrade built or reinforced to carry the load. Today, that bill often lands on residential ratepayers. Sen. Martin Heinrich (D-N.M.) wants it to land on the data centers instead.
His forthcoming "GRID Savings Act" would require large power users, the cloud and AI operators running multi-hundred-megawatt campuses, to cover the grid-infrastructure costs triggered by their own interconnection, according to a release from his office. The bill is structured to give statutory teeth to a voluntary commitment hyperscalers and utilities have already made under the White House's Ratepayer Protection Pledge.
In a preview on the POLITICO Energy podcast, Heinrich cast the bill as a 2027 priority: if Democrats retake the Senate, he would chair the Energy and Natural Resources Committee and put GRID Savings at the top of the agenda, as E&E News reported. It's a political anchor on a substantively technical text.
Today, the utility can spread the cost across ratepayers. Under the bill, the hyperscaler pays the marginal grid cost of the interconnection: the wires, substation rebuilds, and any reliability upgrades that exist only because the new load arrived. Cost allocation is set at the federal level rather than negotiated case by case at state public-utility commissions.
Why this senator, why this moment. Heinrich is no stranger to the data-center-on-the-grid fight. In March he chaired a Senate Energy and Natural Resources Committee hearing on transmission and AI load, with witnesses from the Niskanen Center, the Cato Institute, and the Electric Power Supply Association. He and Sen. Mike Lee (R-Utah) earlier pressed FERC on data-center grid-connection backlogs. His family history is part of his pitch: his father was an IBEW lineman for decades, the union craft that physically builds the lines a hyperscaler is asking the country to expand.
AI-driven load forecasts have rewritten utility integrated resource plans in the last 18 months, and interconnection queues from PJM to ERCOT are dominated by data-center requests. A cost-allocation rule that survives the next planning cycle sets who writes the check for the new wires.
The stakes, by player. For ratepayers, this is a question of subsidies. Under most state frameworks, transmission upgrades triggered by one large customer can be socialized across all customers on the system, including households. Heinrich's framing is that this is a subsidy, and a regressive one. For hyperscalers, the picture is mixed. The largest operators have signed the White House pledge, and a federal rule would preempt the patchwork of state public-utility commission fights. But it raises the marginal cost of a U.S. site and could push a build to a less regulated jurisdiction. For investor-owned utilities, the trade is between rate-base protection and buildout speed. Recovering the cost from the hyperscaler protects the rate base from backlash; recovering it from ratepayers speeds the build and the returns. State commissions have been pushing in both directions. For host communities, a "data-center-driven grid cost" line item on a utility filing is also a political lever for counties and municipalities trying to extract concessions on water, noise, or local generation.
The bill does not resolve the surrounding criticism. Hyperscalers will warn that strict cost-causation rules slow the AI buildout and that the U.S. is already behind on capacity. Siting fights over new transmission corridors, water use for cooling, and grid reliability under extreme load are not in scope and remain the next fights.
What to watch. Heinrich is releasing the text this week. The co-sponsor list, especially any Senate Republican signers, will signal whether the bill has a path or is a marker for the 2027 chair campaign. FERC's parallel proceeding on data-center interconnection is the venue where the cost-allocation fight will be tested first, regardless of what the Senate does. State public-utility commissions in PJM, ERCOT, and Virginia are already drafting their own rules, which is the regulatory layer this federal bill is trying to overwrite.
Heinrich's bet is that the politics of "AI companies should pay their own power bill" is durable enough to outlast any single Congress. The first test is whether the bill gets a single Republican co-sponsor, or just a press release.