Greenhouse gases are generated by the combustion of fossil fuels, which has a long-term impact on the climate. Gränges’ goal is to reduce its carbon footprint. Gränges strives to reduce greenhouse gas emissions, both direct and indirect, along the value chain.

Gränges’ emissions to air consist predominantly of carbon dioxide, nitrogen oxide and dust. Emissions are primarily emanating from the combustion of fossil fuels in production processes and transportation. Initiatives to reduce emissions are continuously implemented, for example through energy efficiency measures.

Structured environmental work

Gränges’ has an environmental management system certified according to ISO 14001. Within the system work towards continuous improvements are made in a number of areas, including airborne emissions.

Gränges´ production facilities have modern technologies and effective flue gas cleaning equipment and emission levels are generally maintained well below the limits. In order to avoid potential exceedance of emission limits, Gränges is continuously working with inspections and controls in its maintenance routines.

Measures to reduce emissions

During the year Gränges has made improvements to a number of filters to reduce emissions, primarily of dust and other particulate matter at the production facilities. Gränges has also implemented process optimisation measures that, for example, reduce the use of nitrogen and thereby emissions of nitrogen compounds. Reduction of greenhouse gas emissions can directly be linked to energy efficiency measures and thereby reduced use of energy.


Gränges continuously reviews how it can optimise transportation and logistics flows. The average load per truck is being increased by reviewing production planning, and optimizing finished goods inventory levels.

By increasing loading co-ordination between different machines, Gränges has also been able to reduce the number of trucks at the production facility. Gränges strives to make internal logistics more efficient through process improvements and investments to reduce the use of forklifts.

Total emissions

tonnes 2016 2015 2014
Carbon dioxide 42,902 41,761 43,394
Dust 3.8 5.3 5.1

Carbon dioxide intensity

kg CO2/tonne aluminium 2016 2015 2014
Re-melting and
cast house



Mill 6.6 6.6 6.5
Re-melting and
cast house



Mill 100 102 102
Gränges Total 245 250 273