The country's energy consenting body Empresa de Pesquisa Energética (EPE) said that wind projects accounted for 58% of the total 26.3GW proposed for October's reserve auction.
Proposals were put forward for 626 wind projects, while solar accounted for 400 of the planned developments. There were also submissions for eight biogas projects.
The reserve auction differs from standard auctions in that it is not designed to meet the anticipated growth in demand, but rather provide energy security by creating a reserve capacity beyond that. EPE announced earlier this week that it will delay the reserve auction until 31 October, from the previously planned date of 10 October.
The winning projects will be required to generate energy from 2017.
Eastern state, Bahia, was the focus for the most wind projects, with 5.8GW planned within its borders. Cerea, Rio Grande do Sul and Rio Grande do Norte all banked proposals for more than 2GW of wind farms.
At the latest auction in June, wind also dominated, with 21 projects chosen with a total capacity of 551MW across the states of Ceará, Pernambuco, Rio Grande do Norte and Rio Grande do Sul.