Sustainability reporting

Wärtsilä’s sustainability report presents the company’s sustainability performance, targets, and progress towards the targets. Our reports have been prepared in accordance with the Global Reporting Initiative (GRI) since 2002.

Wärtsilä’s sustainability reporting covers all the Group companies. Environmental and social performance data is collected from subsidiaries using a sustainability reporting system while economic data is based mainly on audited financial accounts. Each company has a nominated individual responsible for collection and consolidation of the data, and for its quality and reliability. Wärtsilä’s sustainability function collects and consolidates the data from the subsidiaries and is responsible for sustainability reporting. Since 2001, Wärtsilä’s sustainability report has been externally assured.   

Our materiality assessment is an essential part of the process for defining the sustainability reporting content by taking into account various stakeholder groups’ views on the importance of different topics. In 2020, Wärtsilä updated the materiality assessment which included an evaluation of economic, environmental, and social topics and their impact to Wärtsilä’s business from the stakeholders’ point of view. Read more information about our materiality assessment in our Annual Report.