DTE Energy submitted to Michigan regulators a new plan that would cut its monthly renewable-energy surcharge to its residential ratepayers from $3 to 43 cents. The proposal, if approved, could lead to nearly $90 million in total rate reduction. The declining cost of wind power, along with improved technologies and the wind-energy Production Tax Credit, has allowed DTE to lower its operating costs without sacrificing its ability to meet the standard, said Irene Dimitry, DTE Energy's vice president of marketing and renewables.

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