Emissions

Reducing emissions is important to secure future environmental permits and thereby Gränges’ license to operate, and for Gränges’ stakeholders.

Gränges emits various substances mainly to air, but also to water and soil. Emissions to air, in terms of carbon dioxide, nitrogen oxides and dust, come from burning fossil fuels and particularly natural gas and liquefied petroleum gas. Emissions of oil are linked to the cold rolling mills where a mixture of oil and water is sprayed over the mills to keep them from overheating. Emissions are monitored and managed as part of daily operations.

Management systems and regulations

In Finspång and Shanghai, Gränges has implemented local environmental management systems according to ISO 14001. In the US, Gränges has initiated a process to implement a certified system. Within each management system, Gränges works continually to improve in areas such as emissions.

Emissions of nitrogen oxides, sulphur dioxide, dust, volatile organic compounds (VOC) and in some parts of the organization, oil emissions, are regulated by legislation. Compliance is a prerequisite for Gränges’ continued license to operate. Local authorities continually monitor compliance to ensure that emissions are within limits.

Measures to reduce emissions

All Gränges’ production facilities have modern technology and emissions are generally maintained well below the limits. To avoid potentially exceeding limits, Gränges works continually with inspections and controls of maintenance routines.

One improvement implemented during the year was a project in which Gränges’ production facilities in the US converted many outbound shipments to customers to rail delivery. This has reduced carbon emissions by around 70 per cent on these shipments and cut CO2 emissions by 1,200 tonnes.

During the year, Gränges has installed new flue gas monitoring equipment in the production facility in Shanghai. The new system continuously monitors flue gases and helps to identify improvements. New oil mist purifiers and oil recovery systems have also been installed to cut oil consumption and emissions.

Emissions of carbon dioxide and other greenhouse gases are not regulated by legislation, but are important for Gränges and its stakeholders. To improve understanding of its indirect greenhouse gas emissions, Gränges has conducted a carbon footprint study. The study shows that Gränges’ direct and indirect emissions of greenhouse gases amount to approximately 4.6 Mtonnes, where the majority are indirect emissions emanating from production of primary aluminium. The study will provide the basis for future target setting. Greenhouse gas emissions are related to using fossil fuels and reductions can therefore be directly linked to energy efficiency measures.

Gränges continually examines how it can optimize transportation and logistics flows. By optimizing production planning and inventories of finished goods, Gränges has increased the average load per truck. Gränges strives to make internal logistics more efficient through improved processes and investment to reduce the use of forklifts. The company works with eco-driving to reduce fuel use. By better coordinating loading between machines, Gränges has also cut the number of trucks.

 

Total emissions of greenhouse gases
  Scope 1 Scope 2 Scope 3
ktonnes CO2e 2017 2016 2017
2016 2017 2016
Gränges total 169.7 164.3 132.7 130.7 4,300 4,400

 

Carbon intensity
  Scope 1 Scope 2 Scope 3
Tonnes CO2e/tonne product 2017 2016 2017 2016 2017 2016
Gränges total 0.45 0.46 0.35 0.37 11.4 11.6

 

For definitions of Scope 1, Scope2, Scope 3 see page 115 in the 2017 Annual Report.

Goals and performance