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Aneel Cancels Thermoelectric Plants by CMAA in Minas Gerais and Expands Number of Revoked Grants in the Electric Sector.
The decision involving Aneel and thermoelectric plants has brought new impacts to the country’s energy planning.
The National Electric Energy Agency (Aneel) revoked the authorizations for two thermoelectric plants that the Companhia Mineira de Açúcar e Álcool (CMAA) planned to operate.
The measure was published this Thursday (5) in the Official Gazette and fulfills a request from the company itself, which cited changes in the economic scenario and limitations in the transmission network.
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The affected projects are the Canápolis 2 plants, with an expected capacity of 40 megawatts (MW), and Tijuco 3, with 50 MW.
The CMAA intended to install the plants in the municipalities of Canápolis and Uberaba, in the Triângulo Mineiro. The plants would use biomass from sugarcane bagasse to generate electricity.
In addition to the revocation of the authorizations, Aneel authorized the return of the financial guarantees that the company had deposited to enable the projects.
Decision Expands Volume of Revoked Grants in the Electric Sector in 2026
With the decision involving CMAA Energia, the volume of canceled projects in the country is increasing.
A survey by the MegaWhat portal shows that, only in 2026, the electric sector already registered nearly 11 gigawatts (GW) in installed capacity related to revoked grants.
This number reflects a growing movement of investment review in the electric sector, especially in projects that were still in the implementation phase.
While some ventures move forward, others end up suspended or canceled due to changes in the economic, regulatory, or technical landscape.
Network Restrictions and Excess Energy Influenced the Decision
According to information gathered by MegaWhat, CMAA sent a letter to the regulatory agency explaining the reasons for the cancellation request.
Among the main factors cited is the restriction of energy flow in the transmission and distribution networks.
In practical terms, the current infrastructure may not have sufficient capacity to transport all the electricity generated by the plants.
Additionally, the company highlighted the existence of a structural oversupply of energy in the National Interconnected System (SIN).
This scenario has led to more frequent episodes of curtailment, a technical term that defines the reduction of generation when the system cannot absorb all the available supply.
Plant Expansion Also Featured in the Cancellation Request
In addition to the two new thermoelectric plants, the company also requested the revocation of the authorization to expand another unit.
This concerns the UTE Canápolis 1, which would increase from 15 MW to 70 MW of installed capacity.
With the suspension of this expansion, CMAA Energia begins a strategic reassessment of its growth planning in electricity generation from biomass.
Biomass, especially sugarcane bagasse, continues to be a relevant renewable source in Brazil, particularly in regions that produce sugar and ethanol.
Regulatory Changes and High Interest Rates Affected Biomass Projects
The company also pointed out recent changes in the regulatory and economic environment.
According to CMAA, changes in the regulatory framework of the electric sector — especially after the issuance of Provisional Measure No. 1,212/2024 — reduced incentives for new generation projects.
At the same time, the increase in interest rates has raised financing costs and pressured the financial viability of new projects.
Biomass energy projects depend on regulatory stability and economic predictability to ensure returns for investors.
Financial Guarantees of R$ 15.7 Million Will Be Returned
The canceled projects had provided financial guarantees required by the sector’s regulations.
The company deposited approximately R$ 15.7 million, an amount equivalent to 5% of the projected investment, as required by current regulations.
Given the new scenario, CMAA requested Aneel to release these funds.
According to reports, the company argued that “given the scenario,” it also requested the release of the guarantees due to the lack of spare capacity in the transmission system.
What the Decision Indicates for the Future of the Electric Sector
The decision involving Aneel and thermoelectric plants reinforces a trend observed in recent months: companies have been reevaluating energy projects in light of changes in the market.
Thus, the combination of limited infrastructure, excess energy supply, and regulatory adjustments leads investors to revise expansion plans.
In this context, the growth of revoked grants may indicate a phase of transformation in national energy planning.
Experts believe that the Brazilian electric sector will continue to undergo adjustments to balance the expansion of generation, regulatory stability, and capacity of the transmission network.
See more at: Aneel Revokes Grants of Thermoelectric Plants by CMAA
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