Energy
Iberdrola Wins Two Brazil Transmission Lots in ANEEL Auction
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Iberdrola, through its Brazilian subsidiary Neoenergia, has been awarded two electricity transmission projects in Brazil spanning 834 kilometres of power lines and involving an estimated investment of 1.4 billion Brazilian reais (approximately 231 million euros), Iberdrola announced on October 30, 2026. The projects correspond to lots 1 and 7 in the auction held that day by Brazil’s National Electric Energy Agency.
Of the 834 kilometres included in the projects, 351 kilometres will be newly built. The works will be carried out in the states of Bahia and Paraíba and are expected to create more than 3,100 jobs, according to the announcement. Iberdrola said the infrastructure will help strengthen the security and increase the capacity of Brazil’s electricity system.
In Bahia, lot 1 comprises 483 kilometres of existing lines and 238 kilometres of new lines, as well as 700 megavolt-amperes (MVA) of capacity. Iberdrola said these facilities offer synergies with Neoenergia’s existing distribution and transmission operations in the region. In Paraíba, lot 7 includes 113 kilometres of new lines and 2,100 MVA of capacity and also offers synergies with the company’s transmission and generation operations, according to the announcement.
The concessions will have a 30-year term from the signing of the contracts, which is scheduled for February 2027. Operations must begin within a maximum of 48 months for lot 1 and 42 months for lot 7. Neoenergia currently manages more than 8,000 kilometres of transmission lines in the country, and Iberdrola describes it as one of Brazil’s leading electricity transmission operators. The company said the award reinforces its growth in the networks business, with a focus on creating long-term value.
Auction Results at B3
ANEEL held the tender, its transmission auction No. 04/2026, at the B3 exchange in São Paulo on October 30, 2026. Concession contracts for the public electricity transmission service totaling 8.9 billion reais in investments were awarded across eight lots to five companies, according to B3’s official record.
In a closely contested dispute that advanced to the open-outcry phase, in which bidders present open and successive bids to surpass competitors’ offers, lot 1 was won by Neoenergia Transmissão 3 SPE S.A. with an offer of 59.85 million reais, representing a discount of 51.21%, B3 reported. The company also took lot 7 with a proposal of 68 million reais, securing the concession with a discount of 38.55%.
B3’s record set out the following results for all eight lots:
| Lot | Winner | Location | Winning bid | Discount |
|---|---|---|---|---|
| 1 | Neoenergia Transmissão 3 SPE S.A. | Bahia | R$ 59.85 million | 51.21% |
| 2 | EDP Transmissão Goiás S.A. | Goiás and Bahia | R$ 26.53 million | 53.29% |
| 3 | Cymi Construções e Participações | São Paulo | R$ 78.70 million | 57.08% |
| 4 | Celeo Redes Brasil S.A. | Mato Grosso do Sul, São Paulo, Paraná and Goiás | R$ 377.09 million | 50.55% |
| 5 | Cymi Construções e Participações | Paraná | R$ 96.40 million | 46.36% |
| 6 | Cox Brasil S.A. | Paraná | R$ 37.85 million | 53.46% |
| 7 | Neoenergia Transmissão 3 SPE S.A. | Paraíba | R$ 68 million | 38.55% |
| 8 | Celeo Redes Brasil S.A. | Rondônia | R$ 66.66 million | 48.02% |
Lot 4 comprises 1,167 kilometres of new lines divided into sublots 4A and 4B, with undertakings located in the states of Mato Grosso do Sul, São Paulo, Paraná and Goiás. Lot 2 includes 126 kilometres of new lines, lot 3 covers 45 kilometres of new lines, lot 5 covers 173 kilometres of new lines, and lot 6 covers four kilometres of new lines serving the state of Paraná.
In total, the undertakings will comprise 1,866 kilometres of new transmission lines and sectioning, in addition to the continuation of 483 kilometres of existing lines, according to B3. The projects also contemplate 12,694 MVA of transformation capacity, the continuity of 600 MVA, and the installation of four synchronous compensations.
“The result of the auction reinforces the confidence of investors in the Brazilian electricity sector and contributes to the expansion and the security of the country’s transmission system,” said Ludimila Lima, a director of ANEEL, in B3’s account.
Guilherme Peixoto, B3’s superintendent of Client Relations and Governance in Auctions, thanked ANEEL for its confidence in B3 to support the process. “It is a satisfaction to contribute by offering a safe, transparent and organized environment, connecting important infrastructure projects to investors and agents interested in participating in the development of the country,” he said.
