Environmental footprint

Towards cleaner operations

As a key player in the mobility sector, Alstom is at the forefront of the challenges facing society today, from global warming to rapid urbanisation. Understanding the importance of reducing the environmental impact of its operations, the Company strives to make more sustainable choices at every step, from energy sources to transportation and recycling.

Climate change is changing weather patterns and disrupting balance of nature. To help to tackle climate risks, Alstom assessed in 2022 the climate resilience of its assets based on scenarios consistent with the IPCC (scenario SSP5 8.5 and scenario SSP2 4.5 scenario). The Group also carried out this year an initial impacts analysis of its sites on Biodiversity with the help of an expert firm. Next years, will be dedicated to pursue these initiatives and further deploy adaptation plan and biodiversity actions.

  • Energy use in our facilities

    Energy use in our facilities

    Alstom intends to reduce CO2 emissions from Scope 1 & 2 through on-going programmes to improve energy intensity in the operations, develop on-site green electricity production and supply all sites with electricity from renewable sources.

  • Net-zero ambition

    Net-zero ambition

    Alstom is ready to commit towards a net-zero scenario that will drive the corporate climate action for the coming years. The Company is engaging to complete a deep decarbonisation of its activities over the value chain, while contributing to the mitigation efforts beyond the Company. The net-zero ambition means that climate targets will be gradually expanded to cover the whole value chain, by setting the right measure efforts and establishing the milestones towards absolute CO2 reduction by 2050.

  • Emissions of non-methane Volatile Organic Compounds (VOCs)

    Emissions of non-methane Volatile Organic Compounds (VOCs)

    VOCs are the main air pollutants emitted by Alstom operations. In 2022, the VOC emissions amounted to 401 tons. By implementing paint substitution initiatives (e.g. replacement of solvent-containing paints by aqueous paints), Alstom has significantly reduced its VOC emissions since 2010. The company continues to pay particular attention to these emissions and is deploying a strategy to reduce VOC emissions through new paint booth specifications, a greater emphasis on solvent-free paints and high solid content paints and investigation of other application systems such as electrostatic robots and guns under nitrogen.

  • Water intensity*

    Water intensity*

    Since 2017, Alstom decided to monitor water intensity on top of water gross consumption. This monitoring is more relevant, as it is defined by the volume of water consumed related to its activity, which is measured in hours worked. At the end of 2022 the water intensity is 10 l/HW.

    *in liters/hours worked

  • Waste recovery (in %)

    Waste recovery (in %)

    At the end of 2022, the recovery rate is at 90% in line with the trajectory for 2025. For the recycling rate, the target has been set at 80% in 2025.

  • Share of electricity from renewable sources (Consumption on industrial sites)

    Share of electricity from renewable sources (Consumption on industrial sites)

    In addition to controlling the energy emission of its operations, the company has taken additional steps committing to use 100% of its electricity from renewable sources by 2025. In total, in 2022, 57% of electricity supplies were from renewable origin.


    Hazardous waste

    Non-Hazardous waste

    Recycled / reused
    (in tonnes)



    Incinerated with energy recovery
    (in tonnes)





Clean operations certification

All the sites have maintained their ISO 14001 certification in 2022/23. 81% of Alstom employees work on certified sites or projects, the 2025 target being to have 100% of Alstom employees on certified sites.

During the past four fiscal years Alstom did not have significant fine above US$10,000. In 2022, Alstom Kanona depot in United States get a non-significant fine (below US$10,000) for failing to submit the 2021 Annual Certification Report (ACR) relating to stormwater discharges associated with industrial activity.

  • Sales, design, validation and testing activities manufacturing and supply of products, systems and services to railway customers worldwide and related support: integrated rail transport system, rolling stock products, information solutions, infrastructure, civil works and services such as maintenance, modernization, spare parts supply chain management, project management and customer support. The environmental footprint of the related office activities is included in the scope of the Environmental Management System.