Gamesa will supply 68MW of its G97-2.0 MW machines to CER for the Assuruá 2, 5 and 7 wind farms, part of the Xique-Xique wind complex.
It also signed to deliver 15 turbines of the same model to Ventos dos Guarás Energias Renováveis for its Ventos dos Guarás 1 wind farm in the Morrinhos complex.
All the projects are in the northeastern state of Bahia and due for completion by the end of 2015.
Gamesa will supply O&M services at both for a 15-year term.
The Spanish group said the latest orders mean it has firm commitments for the supply of 1,394MW to Brazil, where it already has 452MW installed.