AXIA, ISA Energia and other transmission companies will invest more than R$ 28 billion in the electricity grid.

The main companies operating in the energy transmission segment in Brazil have a combined portfolio of over R$ 28 billion in announced projects and investments for the expansion and modernization of the electricity grid. This information was gathered by [organization name - missing from original text]. Canal Solar based on the most recent data released by the companies.

The total includes projects from AXIA Energia, ISA Energia Brasil, Taesa, and Energisa, as well as a project won at auction by the consortium formed by Alupar and Infra 2 Investment.

The costs vary depending on the timeframe and range from reinforcements and improvements to existing facilities to complete projects. greenfield and the construction of new lines. Therefore, the survey represents a snapshot of the portfolios and investments announced by the transmission companies, and not a direct comparison between the investments of each company.

AXIA leads fundraising with R$ 15,5 billion.

The largest portfolio identified in the survey belongs to AXIA Energia. At the end of the first half of 2026, the company reported that it had 288 large-scale transmission projects under implementation, with a total estimated CAPEX of R$ 15,5 billion.

The projects represent 2.332 km of transmission lines and 20.616 MVA in substations. Of this amount, approximately R$ 6,86 billion corresponds to reinforcements and improvements, while another R$ 8,68 billion is associated with projects won in auctions.

In August, AXIA also reported that the 12 expansion projects won in auctions represent approximately 2.320 km of new lines, distributed across 12 states, with implementation planned until 2030.

ISA has R$ 7,2 billion authorized.

ISA Energia Brasil follows, with a portfolio of R$ 7,2 billion in already authorized reinforcement and improvement projects to be executed in the coming years.

In the first half of 2026, the transmission company invested R$ 815,4 million in the renewal of its installed infrastructure, a 19% increase compared to the same period in 2025. In the second quarter alone, R$ 445,4 million was allocated to reinforcement and improvement projects.

During this period, 16 projects were energized and 312 pieces of equipment were replaced. The company operates over 22 km of transmission lines and 135 substations, considering both owned and jointly controlled assets.

Taesa has R$ 4,3 billion in projects.

As of June 30, 2026, Taesa had four projects. greenfield Under implementation, with total investment ANEEL of R$ 4,3 billion and RAP (Annual Permitted Revenue) of R$ 490,7 million in the 2025/2026 cycle. Of this revenue amount, R$ 290,3 million was already associated with operational portions of the Ananaí, Tangará, and Saíra projects.

The projects include Ananaí, Tangará, Saíra, and Juruá. The first three together represent 1.385 km of transmission lines, while Juruá includes a substation and sectioning system. Regulatory deadlines are March 2027 for Ananaí and March 2028 for Tangará and Saíra.

The Alupar consortium has a project worth R$ 1,08 billion.

The survey also considers the project won by the Olympus XX Consortium, formed by Alupar Investimento and Infra 2 Investment, in Transmission Auction No. 01/2026. ANEELThe consortium won Lot 7, located in the state of São Paulo, with an estimated investment of R$ 1,08 billion.

The project includes new underground lines and a substation in the São Paulo Metropolitan Region. The amount corresponds to the estimated investment for the entire consortium project and, therefore, is not attributed exclusively to Alupar.

Energisa forecasts R$ 180,3 million in 2026.

Energisa plans to invest R$ 180,3 million in the transmission segment in 2026, compared to R$ 232,4 million invested in 2025. This amount is part of the R$ 7,09 billion in investments projected by the group for this year.

Among the company's projects is Lot 12 of Transmission Auction No. 01/2024, consisting of two 500 kV transmission lines: Teresina IV–Graça Aranha, with 205,13 km, and Boa Esperança–Graça Aranha, with 188,4 km. Together, the structures represent approximately 393,5 km between Maranhão and Piauí.

According to Energisa, the project is strategic for expanding the flow of energy from the Northeast region to consumer centers. The company won the lot with a revenue per annuity (RAP) of R$ 112,5 million, after presenting a discount of 29,99% in the auction.

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