Portions of the electric transmission grid in Michigan, including the Amber – Donaldson Creek 138,000 volt (138kV) transmission line, were built more than 50 years ago and have experienced minimal investment since that time. As a result, this line has become increasingly unreliable and costly to maintain as growing demand for electricity and outdated infrastructure technology have taxed its service capabilities, creating the potential for it to become overloaded.
The Amber – Donaldson Creek line spans Mason and Oceana Counties. ITC Holdings Corp., through its subsidiary Michigan Electric Transmission Company, LLC (METC) rebuilt approximately 20 miles of this line with new double-circuit structures and conductor (wires), providing greater reliability in this area of the state. The project was completed in Q4 2019.
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