The company also said that Brazil's National Development Bank (BNDES) approved R$320m in financing for one of the projects.
Contour Global now has 633MW of wind power assets in Brazil.
The agreement with Casa dos Ventos includes buying 100% control of the Chapada do Paiuí III complex; additional 15% stakes in the Chapada do Paiuí I and 160MW Asa Branca complexes; and an extra 5% stake in the Chapada do Piauí II wind farm.
