House passes ratepayer protection bill to limit data center cost shifts

The U.S. House passed the Ratepayer Protection Act this week in a 417-3 vote, aimed at keeping the cost of serving big data centers off the bills of regular electricity customers. The bill would ask state regulators to consider rules requiring data centers and other large power users (loads bigger than 100 megawatts) to cover the full cost of any new power plants, transmission lines, or local grid upgrades built to serve them. It would also require these large customers to put up money upfront before utilities build that infrastructure, and to keep paying if they back out of a power contract early.

For homeowners, this is about who pays when a massive new data center hooks up to the grid. Many states already require this kind of cost-sharing through what are called large-load tariffs — rules that make big users pay their own way instead of spreading those costs across everyone's bill. Only 13 states currently have no such rules, and a few of those are considering adding them. The federal bill would largely reinforce that trend rather than create something new.

The bill still needs Senate approval, which analysts say is unlikely before the November midterm elections. A competing Senate bill, the GRID Savings Act, would go further by having federal regulators set nationwide rules. Whether or how strongly ratepayers end up protected from data center costs may depend on what your state has already put in place, since local tariff rules vary widely and are still evolving.