Vestas said it had booked a firm and unconditional order from MidAmerican Energy for 214MW of components for Wind XI under the criteria of the US Production Tax Credit (PTC).

The Danish wind group in June first announced a conditional deal to supply up to 1,000 V110 turbines to the massive onshore project, in what was a huge coup for the company given the previous front-runner status of rival Siemens.

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