J538 Generator Interconnection

As Michigan continues to transition to a cleaner portfolio of power generation resources, additional transmission capacity will be needed to promote the continued reliability of the bulk power system and support the interconnection of new generation resources. 

The J538 Generator Interconnection Project will connect 150 MW of wind generation to ITC’s Michigan Electric Transmission Company, LLC (METC) system. To support the interconnection, ITC will construct a new substation, called Knowles, in Adams Twp. The substation will connect to the Moore Road – Beecher 138,000 volt (138 kV) transmission line. Additionally, ITC will install approximately 6 miles of optical ground wire (OPGW) between the new substation and the existing Moore Road substation. OPGW combines the shielding and communication functions, and provides for improved communication speed and reliability of the line. Construction will begin in Q2 2020 and is expected to be completed in Q4 2020.

The J538 project is an example of ITC’s ongoing commitment to the operational efficiency and reliability of Michigan’s high-voltage transmission grid. The company has invested more than $4 billion in capital project maintenance and transmission infrastructure improvements in Michigan since 2003. These investments are improving the reliability and safety of the transmission infrastructure while ensuring its ability to meet new energy demands.

proj map_knowles sub_061719

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