Missouri's regional transmission operator is planning expensive substation and transmission line upgrades to accommodate surging electricity demand from new AI data centers.
A new federal report indicates that the electric grid across much of the United States is strained, necessitating thousands of miles of new power lines and billions of dollars in investments. According to the National Transmission Needs Study, approximately 4,000 miles of power lines will require annual replacement over the next several decades. The report notes that most of the nation’s transmission infrastructure was constructed in the 1960s and 1970s and is now approaching the end of its operational lifespan, adding that “operational challenges of the electric grid are evolving in complexity and magnitude.” These challenges are compounded by severe weather events, growing electricity demand, and the integration of additional wind and solar generation capacity nationwide. “Significant transmission investment is needed to cost-effectively meet future demand through 2050,” the report states.
Federal projections estimate that U.S. electricity consumption will rise between 16% and 25% by 2034. This surge in demand is driven largely by the rapid expansion of data centers required to support artificial intelligence technologies. During a visit to Jefferson City on Monday, Department of Energy officials stated their expectation that operators of upcoming AI data centers will cover their fair share of associated costs. Katie Jereza, assistant secretary of the DOE’s Office of Electricity, highlighted President Donald Trump’s voluntary ratepayer protection pledge, which has been endorsed by technology firms, utilities, and state governors. “The whole principle is that the data centers will pay for the infrastructure upgrades for their generation, not the families,” Jereza said. She also announced that the federal government will soon allocate funding for “reconductoring.” “Which is basically … restringing the lines,” Jereza explained. “So you’ve got old conductors, and now we’re going to put in new ones that can carry more electrons through from generation to delivery.”
As technology firms construct AI data centers throughout Missouri, state lawmakers have enacted legislation introducing new consumer protections designed to prevent the sector’s substantial energy requirements from driving up residential utility bills. Geoff Marke, chief economist at the Missouri Office of Public Counsel—the state’s consumer advocacy agency—emphasized the financial implications of grid expansion. “We feel like the transmission element is something that largely gets glossed over, but it’s a huge cost that ultimately is borne by ratepayers,” Marke said. He expressed concern that the expenses tied to extensive infrastructure upgrades could disproportionately impact everyday energy consumers. “If the proper cost allocation is not in place there, then yes, I do think residential customers will be exposed more than they otherwise would be,” he added.
Concurrently, a consortium of nine electric transmission utilities, including Ameren and Evergy, is petitioning federal energy regulators for a right of first refusal to develop and operate new multi-state, large-scale power lines. The companies argue that suspending the competitive bidding process would accelerate necessary grid modernization. However, Marke cautioned against limiting market competition. “Incumbent utilities have the vast majority of the transmission investment,” he noted. “Opening that up to requests for proposals or just competitive bidding will just force everybody to be more professional and curb those costs.” Responding to the debate, Jereza observed that the financial impact of competitive bidding varies geographically. “There are parts of the country where it has worked really well. It has gone faster and reduced the cost, and then in other areas it hasn’t worked as well,” she said.
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