Degree of renewability of the energy matrix

Degree of renewability of Suzano's energy matrix2019¹20202021
% % %

Percentage of energy from non-renewable sources

0.13%

0.13%

0.12%

Percentage of energy from renewable sources

0.87%

0.87%

87,68%

Overall

1.00%

1.00%

1.00%

Additional information

Suzano's energy matrix is sustained, for the most part, by renewable sources such as biomass composed of bark, logs and rejects from the wood chipping process; and liquid biomass, known as black liquor, responsible for generating the largest portion of energy. Furthermore, in some units, the energy use of biological sludge in the biomass boilers has already been implemented. In 2021, 87.69% of Suzano's energy matrix came from renewable sources.

At some production units, there is a surplus of electric energy generation, which enables it to be made available to the national grid (National Interconnected System - SIN in Portuguese), contributing to increase the degree of renewability of the Brazilian electric matrix. Between 2020 and 2021, we increased the exportation of renewable energy by approximately 8%. Projects related to the substitution of energy generated from fossil fuel burning by renewable energy, from the black liquor generated in our production process, contributed directly to the increase of this percentage.

In forestry and logistics operations, Brazilian diesel, ethanol and gasoline are the most commonly used fuels.

The fuel consumption data - collected by Suzano in a mostly automated way - were converted into energy consumption from the basic density and the lower calorific value of each fuel. In this regard, when available, the data contained in the technical specification sheet for the fuel used were used. When not available, the values presented in the National Energy Balance (Ministry of Mines and Energy, 2021 - MME in Portuguese) were used.

To learn more about energy management, go to “Energy Management”.