Gamesa and Impsa are the only turbine manufacturers to have announced. Gamesa has sold 258MW of turbines to Iberdrola, and Impsa has orders for 450MW, but they are seeking further contracts for 250MW and 150MW respectively.

Electricity-supply contracts were set for 2GW of proposed wind farm capacity at last month's tender, which came on the heels of a December 2009 auction of 1.8GW.

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