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Home / News / Market and Prices / Isolated system auction contracts hybrid projects with diesel, solar and BESS

Isolated system auction contracts hybrid projects with diesel, solar and BESS

The dispute was held this Friday (26) by the Electric Energy Commercialization Chamber
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  • Photo by Wagner Freire Wagner Freire
  • September 26, 2025, at 13:11 PM
1 min 32 sec read
Photo: Canva

After almost two hours of bidding, the auction of the isolated system, held this Friday (26), resulted in the contracting of hybrid plants that combine diesel oil, photovoltaic generation and battery storage systems (BESS).

Lot I was won by SPE Energias do Acre, with a bid of R$2.729,70/MWh, 22,01% below the initial price of R$3.500/MWh. The projected investment in the solution is R$72,84 million, guaranteeing the winning bidder a fixed annual revenue of R$17.476.427,76. 20,1 MW of power was contracted, well above the minimum requirement of 8.791 kW.

The supply will begin on December 20, 2027, with a contract term of 180 months. The locations benefiting are Tapauá, Novo Remanso, Parintins, Careiro da Várzea, and Japuá, in Amazonas.

Source: CCEE

Lot III went to the IFX-You.ON Consortium, which submitted a bid of R$1.593,16/MWh, representing a 46,89% discount on the initial price of R$3.000/MWh. The expected investment in the solution is R$240 million, with annual fixed revenue of R$48.206.933,00.

In this case, 30,1 MW of power was contracted, compared to the minimum demand of 9.946 kW. Supply will also begin on December 20, 2027, with a contract term of 180 months. The energy will serve the municipality of Jacareacanga, Pará.

Source: CCEE

Finally, Lot 2, which predicted availability of 48.253 kW in Amazonas, was withdrawn from the bidding process at the request of the Ministry of Mines and Energy.

According to the Energy Research Company (EPE), 241 projects were registered, resulting in 80 supply solutions, totaling 1.870 MW of power offered. The three available lots received the following proposals:

  • Lot 1 – Amazonas: 8,791 MW (19 supply solutions);
  • Lot 2 – Amazonas: 48,253 MW (29 supply solutions);
  • Lot 3 – Pará: 9,946 MW (32 supply solutions).

all the content of Canal Solar is protected by copyright law, and partial or total reproduction of this site in any medium is expressly prohibited. If you are interested in collaborating or reusing part of our material, please contact us by email: redacao@canalsolar.com.br.

battery storage CCEE (Electricity Trading Chamber) auction isolated systems
Photo by Wagner Freire
Wagner Freire
Wagner Freire is a journalist graduated from FMU. He worked as a reporter for Jornal da Energia, Canal Energy and Agência Estado. Covering the electricity sector since 2011. Has experience in covering events such as energy auctions, conventions, lectures, fairs, congresses and seminars.
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