USA: Great River Energy, ITC Midwest and Xcel Energy have proposed a series of new transmission lines under the PowerOn Midwest initiative, aiming to deliver reliable electricity and connect new energy sources to the grid across the Upper Midwest. The companies submitted a Certificate of Need application to the Minnesota Public Utilities Commission (MPUC) for the project.
At the heart of PowerOn Midwest is a 765 kV backbone transmission line that will link existing substations in eastern South Dakota, southern Minnesota, and the wider regional grid. In Minnesota, the line will connect Lakefield, Pleasant Valley, and North Rochester substations in Jackson, Mower, and Olmstead counties.
“This project is a critical investment for Minnesota and the Upper Midwest,” said the utility partners. “It strengthens the grid, supports economic growth, and ensures affordable, reliable electricity while integrating new energy resources.”
The project will help move large volumes of electricity efficiently, accommodate diverse generation sources, and support communities as energy demand evolves. PowerOn Midwest was included in MISO’s Long Range Transmission Plan approved in 2024, which also covers several 345 kV projects in the region.
The companies engaged stakeholders through public open houses, local governments, agencies, and Tribal Nations. Route options are still being developed, with Route Permit applications planned for 2027 in Minnesota and a Facility Permit in South Dakota expected in 2026. Subject to approvals, construction could start by 2030, with the line operational by 2034.
The proposal also includes upgrades to existing 345 kV lines, including rebuilding and adding circuits to improve reliability. The collaboration highlights a long-term commitment to modernising the regional transmission network and meeting growing electricity needs.
Source: Yahoo Finance
