MUMBAI - India's Suzlon Energy said on Wednesday its German unit REpower Systems has signed a contract to supply wind turbines with a total capacity of 18.45 megawatts to U.S. firm Heritage Sustainable Energy LLC.

Suzlon owns a majority stake in REpower, Germany's third largest wind turbine maker. REpower's U.S. subsidiary clinched the deal.

The contract also provides an option to supply another 10 turbines with total capacity of 20 MW to the U.S. firm.

The company did not disclose financial details of the order.

The turbines under the current order are expected to be installed by the third quarter of 2010, Suzlon said in a statement.

(Reporting by Prashant Mehra; Editing by Malini Menon)

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