The Helix-Hiple project – Michigan’s first new interstate transmission line in 50 years – will stretch from northern Indiana to the soon-to-be-constructed Helix substation, in Calhoun County, Michigan. The Nelson Road-Oneida project will expand the in-state transmission backbone infrastructure, bringing improved grid reliability and resilience. Together, these two projects will add 95 miles of 345 kilovolt transmission infrastructure across Michigan.

The MPSC's approval means we are now planning for the construction phase of these projects. We’re expecting to start work on the Helix substation in the first quarter of 2026, and construction on the Nelson Road-Oneida and Helix-Hiple transmission lines will begin in Q3 2028 and Q1 2029, respectively. 

These projects will bring benefits to the State beyond bolstering the strength of its grid. By building more interconnection between Michigan and the MISO region, we’re facilitating a more competitive wholesale energy market while creating opportunities to bring new generation online. Ultimately, these improvements will power the economic growth of our communities, cities and state and deliver savings to customers. 

While our team has much to be proud of regarding the Act 30 approval, we recognize the concerns the MPSC also detailed related to ITC’s public engagement process. We take this feedback seriously and are making refinements to our public engagement process as we continue preparations for future LRTP projects.

As we move forward with these critical transmission projects, we’d like to thank our partners and stakeholders for their help in achieving this significant milestone.

To stay up to date throughout the construction process, please visit https://www.mifuturegrid.com/.

Sincerely,  
Chuck Marshall 
President, ITC Michigan

We Want to Hear from you!

Do you have a question about ITC Michigan or any of our projects? Our team is happy to provide you with answers.

Grand Rapids Goes Green at ArborFest 2025

ITC proudly participated in ArborFest 2025 in Grand Rapids, Michigan. During the event, ITC Michigan President Chuck Marshall expressed gratitude to the community for their support and emphasized the vital role trees play in enhancing our communities. 

As the event’s presenting sponsor, ITC helped plant 203 new trees along public right-of-ways in the Oakdale and Boston Square Neighborhoods. This year marked the 10th annual spring planting event organized by Friends of Grand Rapids Parks, in partnership with the Mayor’s Greening Initiative and the City of Grand Rapids.  

Click here to see photos and highlights of ArborFest 2025.

Chuck Marshall Talks Industry Evolution

ITC was recently included in the INNOVATE publishing series’ Detroit edition. The INNOVATE series shines a spotlight on the thought leaders, entrepreneurs and disruptors in metro Detroit.  

Within the edition, ITC Michigan President Chuck Marshall represented ITC as an industry innovator. He highlighted the significant progress made in the energy industry and the work that still lies ahead to secure our energy future. 

“More than ever before, we’re transitioning to an electrified society. Businesses from data centers to farms to assembly lines are counting on more power to feed their operations.” Chuck wrote in his profile. “Today’s needs are placing new demands on a grid that wasn’t designed for them, all while current sources of power generation are changing. We need updated transmission lines to keep up with our needs and expectations.” 

Read Chuck’s full article here.