The 765 kV Mega-Transmission Line: Is It for the Data Center(s)?
The largest transmission line ever proposed in Minnesota is currently seeking approval from the Minnesota Public Utilities Commission (PUC). Before construction can begin, Xcel Energy and Dairyland Power must first obtain a Certificate of Need, demonstrating that the project is necessary.
In their application, filed on February 6, 2026, the utilities argue that the line is needed to:
Maintain electric system reliability.
Meet growing electricity demand.
Support the energy transition.
At first glance, these justifications appear reasonable. However, do they accurately reflect Minnesota's electric system, or are they broad statements intended to satisfy regulatory requirements while concealing the project's primary purpose?
Does Minnesota Need More Electricity?
Historical demand data raises important questions.
In 2006, Northern States Power (a subsidiary of Xcel Energy) recorded a peak demand of 9,859 megawatts (MW). That was twenty years ago. Since then, demand has not grown—in fact, it has declined. By 2025, peak demand had fallen to 8,445 MW.
If Minnesota's electricity demand has remained relatively flat or even decreased over the past two decades, why is there suddenly a need for a 765 kV transmission line capable of delivering roughly 3,000 MW of additional power—an amount equal to more than one-third of Minnesota's current peak demand?
The Google Data Center Connection
One possible explanation emerged in February 2026, when Google announced plans to build its first Minnesota data center in Pine Island.
The proposed 765 kV transmission route would cross southern Minnesota but then make a significant turn north, adding approximately 90 miles to the route. Such a detour would likely add billions of dollars to the project's cost.
Why would the route deviate so dramatically?
On February 24, 2026, Xcel Energy published a newsroom announcement titled "Xcel Energy to power new Google data center in Minnesota."
According to the Minnesota Center for Environmental Advocacy (MCEA), the Pine Island data center could require up to 2,700 MW of electricity. That represents a staggering 32% of Xcel Energy's 2025 peak demand.
If those estimates are accurate, an obvious question follows: How will that enormous amount of electricity be delivered?
The proposed 765 kV transmission line appears capable of carrying at least the amount of power the data center would require.
Questions About Environmental Advocacy
The proposed transmission line has also raised questions about the positions taken by some environmental organizations.
Groups such as the Minnesota Center for Environmental Advocacy (MCEA) have publicly opposed large data center projects and received recognition for legal efforts that temporarily delayed construction.
However, on February 25, 2026, MCEA filed a letter supporting the proposed 765 kV transmission project. The Sierra Club also expressed support for the transmission proposal.
This has led some observers to question whether these organizations are taking consistent positions. While publicly opposing the expansion of data centers, and successfully challenging the inadequate environmental review, they also support the major transmission infrastructure that would supply those facilities with electricity.
Supporters of the transmission line argue that it serves broader reliability and clean energy goals. Critics, however, contend that the line's scale, route, and timing strongly suggest that accommodating large new data center loads is a primary driver of the project.
Whether the transmission line is principally intended to improve Minnesota's electric grid or to serve massive new industrial customers such as data centers is a question that deserves careful public examination in the Certificate of Need proceedings before the project receives final approval.
Minnesota's Climate Goals and the 765 kV Transmission Line
Minnesota has committed to obtaining 100% carbon-free electricity by 2040, yet recent state data shows the state is already falling behind its climate goals. Although greenhouse gas emissions have declined by about 20% since 2005, Minnesota likely missed its 2025 emissions reduction target. Most of the progress has come from cleaner electricity generation, while emissions from transportation, agriculture, industry, and buildings remain stubbornly high.
Against this backdrop, the proposed 765 kV transmission line raises important policy questions.
If Minnesota is already struggling to meet its climate commitments, adding massive new electrical loads—such as large-scale data centers—could make achieving those goals even more difficult. Supplying thousands of additional megawatts of demand will require new generation, transmission, or both, potentially increasing the challenge of reaching Minnesota's 2040 carbon-free electricity mandate.
The proposed transmission line would also connect Minnesota's grid with major generation resources in the Dakotas, where large coal-fired power plants continue to provide substantial amounts of electricity. Supporters argue that expanded transmission improves grid reliability and allows access to a broader mix of generation resources. Critics, however, question whether the project could also facilitate increased imports of coal-generated electricity at a time when Minnesota is attempting to reduce carbon emissions. Transmission is “agnostic,” taking on energy from any and all generation sources.
These issues raise broader questions for policymakers and environmental organizations. If Minnesota is falling behind on its climate goals, and if the new transmission infrastructure primarily serves massive new electric loads while potentially increasing access to fossil-fuel generation, why are some environmental organizations and state leaders supporting the project?
These are questions that deserve careful public discussion before decisions are made that could shape Minnesota's electric grid—and its climate progress—for decades to come.
Who Carries the Burden?
Xcel Energy and Dairyland Power have presented broad and ambiguous justifications for the proposed transmission line, citing reliability, growing demand, and the energy transition. However, as more details emerge, the project increasingly appears designed to serve extraordinarily large new electrical loads, including facilities such as Google's proposed data center.
If that is the case, the benefits would largely accrue to major corporate customers and the utilities serving them, while many of the costs would be borne by ordinary Minnesotans.
If approved, the project could require the acquisition of private farmland through eminent domain to establish expanded transmission corridors. Landowners would lose property rights, farmers could see productive agricultural land permanently altered, and rural communities would face the construction of a massive industrial power corridor across landscapes that have long supported farming and small-town life.
Residents living near the line also have concerns about potential impacts associated with high-voltage transmission infrastructure, including corona discharge, noise, and other possible health and quality-of-life effects that continue to be debated.
In addition, utility customers could ultimately bear a share of the project's multibillion-dollar cost through higher electric rates, even if much of the new transmission capacity is intended to serve the extraordinary energy demands of large industrial users and customers out of state.
The central question is one of fairness: Should Minnesota's landowners, rural communities, and ratepayers bear the costs and impacts of a project whose primary beneficiaries may be some of the world's largest corporations?
