Brazil's competition regulator, CADE, has approved a wind energy self-production transaction between local Companhia Brasileira de Aluminio (<a href="https://www.b3.com.br/pt_br/market-data-e-indices/servicos-de-dados/market-data/cotacoes/?symbol=CBAV3" target="_blank">BVMF:CBAV3</a>), also known as CBA, and renewables developer Casa dos Ventos.