Curtailment Continues Pressuring Renewable Energy in Brazil in 2026, Despite Relief at the End of 2025, BTG Pactual Analysis Indicates

Written by Rannyson Moura

Published on 05/01/2026 at 15:06

1 person reacted to this.

Even With Decline in December, Curtailment Remains High and Affects Renewable Energy Generation, Especially Wind and Solar, with Direct Impact on Listed Companies.

The curtailment, a term used to define forced cuts in energy generation, showed a slowdown at the end of 2025, but still remained at a high level throughout the fourth quarter. This assessment is included in an analysis released by BTG Pactual, which monitors the operational performance of renewable energies in the country.

According to the report, the behavior of the period was marked by strong pressure on renewable generation in the early months of the quarter. In contrast, December brought more consistent relief. Nonetheless, the observed levels remain significantly above those recorded in 2024, maintaining direct effects on the revenue and performance of companies in the electric sector.

Wind Generation Concentrates a Relevant Part of the Cuts

In the wind segment, the average curtailment reached 23.8% in the fourth quarter of 2025. This percentage highlights significant restrictions on generation, even in a scenario of high wind availability in various regions of the country.

ARTICLE CONTINUES BELOW

December Reduces Pressure on Wind

Despite the weak performance for the quarter as a whole, the monthly reading indicates progressive improvement. In December, wind curtailment fell to 15.7%, down from 22.5% in November and 29.7% in October. This movement signals an operational adjustment in the system, although it is still far from levels considered ideal.

In the solar segment, the scenario followed a similar pattern. The average curtailment was 24.5% in the fourth quarter, below the previous quarter but still high. The gradual reduction over the months was not enough to neutralize the accumulated effects.

The companies most affected were Alupar, with 39.5%, Equatorial Energia, again via Echoenergia, with 38.0%, Auren Energia, with 30.0%, and Eneva, with 26.0%.

Regionally, Pernambuco led the solar cuts, with 31.9%, followed by Bahia, with 30.3%, Piauí, with 27.4%, and Minas Gerais, with 25.0%.

Energy Nature Leads Causes of Curtailment

According to BTG Pactual, energy-related curtailment continued to be the main limiting factor during the period. This type of restriction accounted for 54% of cuts in wind generation and 69% in solar.

At the same time, reliability-related cuts gained greater participation in the wind segment, while electrical-related cuts remained minimal. This data indicates the persistence of structural restrictions in the electrical system, especially in regions with a high concentration of renewable energy projects.

Even with the decline observed at the end of the year, curtailment remains one of the main operational challenges for the sustainable expansion of renewable energies in Brazil.

0 Comments

most recent

older Most voted

Curtailment Continues Pressuring Renewable Energy in Brazil in 2026, Despite Relief at the End of 2025, BTG Pactual Analysis Indicates

Even With Decline in December, Curtailment Remains High and Affects Renewable Energy Generation, Especially Wind and Solar, with Direct Impact on Listed Companies.

Wind Generation Concentrates a Relevant Part of the Cuts

December Reduces Pressure on Wind

Energy Nature Leads Causes of Curtailment

A giant printer called the “Ferrari” of concrete has landed in Latin America and can already build a 120-square-meter house in just 48 hours, making the traditional construction site look like something from the last century.

Brazil will harvest a record crop of up to 357 million tons of grains, but it does not have the capacity to store a large part of it. The storage deficit has reached the highest level in history and is equivalent to almost the entire production of Argentina.

Four times faster than the Concorde, capable of taking passengers from New York to London in less than an hour at Mach 5.5, and with an engine that switches from turbojet to ramjet mid-flight at Mach 3.5, the Hermeus Quarterhorse went from paper to its first flight in just 19 months.

Under nearly 2 kilometers of ice in Antarctica, scientists have discovered an ancient landscape sculpted by rivers up to 60 million years ago, the size of Wales, preserved as a time capsule that could help predict the advance of ice towards the ocean.

She started by collecting oyster shells from restaurants and today she has already accumulated more than 10 tons to restore reefs, recover coastal habitats, and demonstrate how a common waste can become a tool for ocean conservation.

SpaceX will dock a $843 million vehicle to the International Space Station to push a nearly 420-ton laboratory against the atmosphere and make the debris fall in a controlled manner into the ocean.

September 11 Trauma May Affect Children and Grandchildren, Study on Transgenerational Effects Shows

Sleeping with your pet seems harmless, but research reveals the nighttime detail that can turn comfort into sleepless nights.

Japan develops innovative material that could transform the fight against waste and global pollution

Scientists find in pigeons’ livers a possible “biological compass” capable of explaining how birds follow invisible routes through the Earth’s magnetic field.

Curtailment Continues Pressuring Renewable Energy in Brazil in 2026, Despite Relief at the End of 2025, BTG Pactual Analysis Indicates

Even With Decline in December, Curtailment Remains High and Affects Renewable Energy Generation, Especially Wind and Solar, with Direct Impact on Listed Companies.

Wind Generation Concentrates a Relevant Part of the Cuts

December Reduces Pressure on Wind

Energy Nature Leads Causes of Curtailment

A giant printer called the “Ferrari” of concrete has landed in Latin America and can already build a 120-square-meter house in just 48 hours, making the traditional construction site look like something from the last century.

Brazil will harvest a record crop of up to 357 million tons of grains, but it does not have the capacity to store a large part of it. The storage deficit has reached the highest level in history and is equivalent to almost the entire production of Argentina.

Four times faster than the Concorde, capable of taking passengers from New York to London in less than an hour at Mach 5.5, and with an engine that switches from turbojet to ramjet mid-flight at Mach 3.5, the Hermeus Quarterhorse went from paper to its first flight in just 19 months.

Under nearly 2 kilometers of ice in Antarctica, scientists have discovered an ancient landscape sculpted by rivers up to 60 million years ago, the size of Wales, preserved as a time capsule that could help predict the advance of ice towards the ocean.

She started by collecting oyster shells from restaurants and today she has already accumulated more than 10 tons to restore reefs, recover coastal habitats, and demonstrate how a common waste can become a tool for ocean conservation.

SpaceX will dock a $843 million vehicle to the International Space Station to push a nearly 420-ton laboratory against the atmosphere and make the debris fall in a controlled manner into the ocean.

Brazilian researchers develop a catalyst made with abundant metals that increases the efficiency of green hydrogen production and can replace expensive materials, creating a promising alternative to expand the use of clean energy worldwide.

New Fiat EV, priced at R$ 77,000, will bring a reinterpretation of the 147 and a consumption equivalent to 70 km/l.

With R$ 17.2 million, Equinor expands strategic sugarcane biomethane project and boosts innovation that can convert Brazil’s agricultural potential into a new source of high economic value renewable energy.

Spanish city uses an aquifer hidden 11 meters deep as an urban ‘refrigerator’ for almost 30 years, saves 52% of energy in a public building, and now resorts to AI to prevent the solution from exhausting its potential

Canada is preparing a billion-dollar megaproject with 3.5 GW of wind energy, up to 530 turbines, green hydrogen, and ammonia for export, in a bid that could place the country at the center of the new global race for clean fuels.

September 11 Trauma May Affect Children and Grandchildren, Study on Transgenerational Effects Shows

Sleeping with your pet seems harmless, but research reveals the nighttime detail that can turn comfort into sleepless nights.

Japan develops innovative material that could transform the fight against waste and global pollution

Scientists find in pigeons’ livers a possible “biological compass” capable of explaining how birds follow invisible routes through the Earth’s magnetic field.