US Energy Department Allocates $5.25 Billion to Grid Upgrades as Data Centers Face Power Bottlenecks

The US Department of Energy has announced a $5.25 billion initiative to upgrade electrical grid infrastructure across the nation, targeting transmission bottlenecks as data center construction accelerates, as reported by The Register (https://www.theregister.com/systems/2026/09/25/uncle-sam-coughs-up-19b-for-grid-upgrades-as-datacenters-hit-a-power-wall/5299276). The funding package includes $1.9 billion in federal allocations alongside $3.35 billion in cost-share funding, designed to unlock at least 23 gigawatts of additional capacity.

The program covers 31 projects across 26 states under the department's Speed to Power through Accelerated Reconductoring and other Key Advanced Transmission Technology Upgrades (SPARK) initiative, drawing federal funds from the Grid Resilience and Innovation Partnerships (GRIP) program.

Rather than constructing new power generation facilities, the projects focus on expanding throughput across existing networks. Plans call for reconductoring or rebuilding more than 1,500 miles of transmission lines and installing grid-enhancing technologies—including sensors, power flow control devices, and analytical software—across 21,000 miles of transmission infrastructure. Participants in natural disaster zones will also implement measures to bolster grid resilience and reduce wildfire risks.

The agency estimates the upgrades will enhance reliability and lower electricity costs for roughly 100 million Americans. "These investments will get more out of the infrastructure we already have, move more electricity across the grid, and help deliver affordable, reliable, and secure power that will fuel American prosperity for decades to come," US Secretary of Energy Chris Wright said in a statement.

The upgrades arrive amid warnings that grid expansion remains behind data center demand. Financial services firm Moody's warned earlier this month that the pace of data center construction exceeds the rate at which the US grid can add capacity, projecting US data center power consumption will reach 426 terawatt-hours by 2030, roughly double the figure estimated for 2025.

These constraints have spurred data center operators to explore alternative energy sources, including small modular reactors, geothermal power, and the recommissioning of retired nuclear facilities, while chipmakers such as Nvidia advocate for connected facility architectures that can return power capacity to the grid during peak demand.