About itc michigan

Connecting Our State

ITC has two operating companies in Michigan: Michigan Electric Transmission Company (METC), and International Transmission Company (ITCTransmission), collectively referred to as ITC Michigan.

METC owns, operates and maintains approximately 5,900 circuit miles of transmission line in the western and northern portions of Michigan’s Lower Peninsula.

ITCTransmission owns, operates and maintains approximately 3,200 circuit miles of transmission line in southeast Michigan.

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A Message From Charles Marshall, Vice President, ITC Holdings Corp. and President, ITC Michigan

We are pleased to share that the Michigan Public Service Commission (MPSC) approved Act 30 certificates of public convenience and necessity for two foundational projects: the Helix-Hiple and Nelson Road-Oneida transmission lines. This marks a critical milestone for Michigan in the implementation of the Midcontinent Independent System Operator’s (MISO) Long-Range Transmission Plan (LRTP), Tranche 1.

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 www.mifuturegrid.com.

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Click HERE to see interviews with ITC leaders on the importance of electric transmission related to the Michigan economy.

Do you have a question about ITC Michigan or any of our projects? Our team is happy to provide you with answers. Click on our contact sheet to identify your local representative and view their contact information.