The Danish wind giant would not specify the exact number of layoffs at its state-of-the-art tower plant in Pueblo – an historic steel town bolstered by Vestas' arrival in 2009 – but a company statement says the reduction represents about 3% of its North American workforce of more than 3,000. The Pueblo factory had more than 450 employees.

"Uncertainty over whether Congress will extend the Production Tax Credit (PTC) is leading to a general market slowdown for wind power manufacturers and developers throughout the US," Vestas says in a statement.

"Vestas