en.Wedoany.com Reported - The Brazilian Ministry of Mines and Energy announced that the 500 kV transmission line (Terminal Rio–Lagos) between Rio de Janeiro and Lagos has been commissioned. The line, spanning 454 kilometers, is part of the Guanabara Project (Projeto Guanabara), with a total investment of 1.01 billion Brazilian reais.

This new line belongs to Lot 2 of the 4th Transmission Auction (Leilão de Transmissão 4/2018) held in 2018. It aims to enhance the security and reliability of the National Interconnected System (SIN, Sistema Interligado Nacional) and facilitate the transmission of electricity generated by thermal power plants in the regions of Macaé and Campos dos Goytacazes. Previously, within the Guanabara Project, the Lagos–Campos 2 line was commissioned in 2025, along with the expansion of the Campos 2 Substation (Subestação Campos 2) and the Lagos Substation (Subestação Lagos). These projects have collectively added 656 kilometers of transmission lines to Brazil's power grid, expanding electricity supply between the states of Rio de Janeiro and Espírito Santo.

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