The Danish equipment group will provide 45 V100-2.0 MW machines to the Valle de los Vientos wind farm.
The order was placed under a 400MW global supply deal the two companies signed in September 2010, says Vestas.
The deal includes a five-year service agreement.
EGP announced last week that it had started work at the $140m project, which is part of plans by the Italian group to add 250MW of new wind power in the South American nation by 2016.
The
