The GRID Savings Act of 2026 establishes federal rules for connecting very large electricity consumers directly to the power grid. The bill applies to facilities with peak electricity demand of at least 150 megawatts, such as data centers or manufacturing plants, and gives the Federal Energy Regulatory Commission authority over how these large loads connect to interstate transmission systems. Within one year of passage, FERC must create standardized procedures for these interconnections, including timelines for study processes, cost allocation methods, and reliability standards. The legislation requires that large customers pay the full cost of facilities built solely for their use, while costs for broader network upgrades would be allocated through existing regional processes, with customers having the option to fund and build their own upgrades. The bill excludes Texas's ERCOT grid from these requirements and does not affect any interconnection proceedings already underway at FERC.