The 70-turbine Echo Wind Park in Huron County will be operational by the end of 2013 and add another 112 MW to the DTE Energy's renewable energy portfolio. The wind park, primarily in Oliver and Chandler townships, is sited on nearly 16,000 acres. The Echo Wind Park is the third to be owned and operated by DTE Energy.
The 110-MW Thumb Wind Park reached commercial operation in December 2012. In addition, DTE Energy has an ownership stake in the Gratiot County Wind Park. The Gratiot wind park is a 212.8 MW project.
Sixty-four of the turbines are owned by DTE Energy, while 69 turbines are owned by Gratiot Wind LLC, an affiliate of Invenergy Wind LLC. DTE Energy purchases the power from Invenergy's turbines under a 20-year power purchase agreement.