ERSA-Energias Renovaveis SA, a Brazilian renewable energy company, will build four wind farms with total capacity of 116 megawatts in the northern state of Rio Grande do Norte.
The projects will go into operation in 2014 and sell electricity on the country's free market for power contracts, the Sao Paulo-based company said in a regulatory filing. They will use turbines from Randers, Denmark-based Vestas Wind Systems AS.