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ISA Energia obtains license for Serra Dourada project construction in Bahia

2 sources · 28 May 2026 · Share coverage ·

verbatim from the press

ISA Energia (ISAE4) has obtained the Installation License (LI) for the remaining block of the Serra Dourada project — clearing the way for construction to begin on the 500-kilovolt transmission line section Juazeiro III-Campo Formoso II-Barra II in Bahia. The Institute of Environment and Water Resources (Inema) issued the license for block 2, the last pending segment of the project.

Press quotes (2)
Money Times

"A Isa Energia (ISAE4) obteve a Licença de Instalação (LI) para o bloco remanescente do projeto Serra Dourada, liberando o início das obras do trecho de 500 mil volts (kV) da linha de transmissão Juazeiro III-Campo Formoso II-Barra II, na Bahia."

Valor Econômico

"O Instituto do Meio Ambiente e Recursos Hídricos (Inema) emitiu a licença de instalação para o bloco remanescente, o bloco 2, do projeto Serra Dourada"

The project involves implementing 1,093 kilometers of transmission lines and three new substations, plus expanding three existing ones. With investment estimated by Aneel at R$ 3.157 billion and Permitted Annual Revenue (RAP) of R$ 322 million in the 2025/2026 cycle, the project is part of lot 1 from Aneel's 2023 transmission auction.

Press quotes (2)
Money Times

"O projeto Serra Dourada faz parte do lote 1 do leilão de transmissão da Aneel de 2023 e prevê a implantação de 1.093 quilômetros de linhas de transmissão, além da construção de três novas subestações e ampliação de outras três já existentes."

Valor Econômico

"o projeto Serra Dourada possui investimento de R$ 3,157 bilhões (data do leilão) e receita anual permitida (RAP) de R$ 322 milhões (ciclo 2025/2026)"

According to the company, blocks 1 and 3 have been under construction since August 2025 and January 2026, respectively. The company highlighted that the project should expand the capacity for transmitting renewable energy produced in western Bahia, enabling the connection of new generation and transmission projects in the country.

Press quotes (2)
Money Times

"os blocos 1 e 3 do empreendimento já estavam em obras desde agosto de 2025 e janeiro de 2026, respectivamente"

Money Times

"o empreendimento deve ampliar a capacidade de escoamento de energia renovável produzida no oeste baiano, viabilizando a conexão de novos projetos de geração e transmissão no País"

Commissioning is scheduled by March 2029. The project will create a priority corridor for transmitting renewable energy from western Bahia, connecting new and existing generators to new transmission projects auctioned by Aneel in 2024.

Press quotes (2)
Money Times

"Com a entrada em operação prevista até março de 2029"

Valor Econômico

"o projeto criará um corredor prioritário para o escoamento de energia renovável proveniente do oeste do Estado da Bahia, viabilizando a conexão de geradoras novas e existentes e de novos projetos de transmissão leiloados pela Aneel em 2024"

1. What we know (2)

The Serra Dourada project is part of lot 1 from Aneel's 2023 transmission auction

2 sources Money Times Valor Econômico

Commissioning deadline is March 2029

2 sources Money Times Valor Econômico
2. Where coverage thins out (2)

Covered by only some sources, or where the accounts diverge.

Covered by only some sources (2)

Specific auction date was June 2023

Reported by: Valor Econômico
Did not cover: Money Times

Project will also connect transmission projects auctioned in 2024

Reported by: Valor Econômico
Did not cover: Money Times
3. What we don't know yet (3)
  • What is the specific legal basis that authorizes Inema to issue the Installation License?

    Why it's still unknown: The articles do not cite state or federal environmental legislation that supports Inema's authority to license transmission projects

    Did not cover: Money Times Valor Econômico
  • Were there legal or environmental challenges during the licensing process?

    Why it's still unknown: There is no mention of potential appeals, contestations, or conditions imposed by the environmental agency

    Did not cover: Money Times Valor Econômico
  • What is the specific impact of the project on Bahia's energy matrix in percentage terms?

    Why it's still unknown: Sources mention capacity expansion but do not quantify the increase relative to Bahia's current installed capacity

    Did not cover: Money Times Valor Econômico

All sources

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