Stora Enso begins feasibility study to further reduce fossil CO2 emissions at Imatra consumer packaging board mill in Finland by adding new biomass boiler, improving recovery boiler energy efficiency; study will guide investments when complete in mid-2023

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September 20, 2022 (press release) –

Stora Enso has started a feasibility study to assess the potential to further reduce fossil CO2 emissions at the Packaging Materials division’s Imatra site in Finland. The study focuses on the possibility to significantly reduce the use of fossil fuels at site. This would be achieved through adding a new biomass boiler and improving recovery boiler energy efficiency. Replacing fossil-based fuels with bio-based fuels would improve the environmental performance of the site.

The Imatra site is one of the world’s largest production sites for consumer packaging board, with over 90% of its products exported to Europe, Southeast Asia and other continents.

The feasibility study is expected to be finalised in mid-2023. The planned changes would require investments, which can be decided on after the feasibility study is finalised. The feasibility study will include an update to the environmental permit which will be applied in due course.

“We have already done a lot to reduce the emissions of the site. A new, more efficient wood handling and debarking line will be finalized during the autumn, reducing the water consumption up to 85% in the debarking line. The recycling and further usage of waste generated at the mill is already today world class, exceeding 99%. Now we are studying the possibility to reduce the fossil CO2 emissions even further, aiming approximately to a 45% reduction,” says Mill Director Mikko Nieminen.

Read more about Stora Enso’s commitment to reduce greenhouse gas emissions from operations by 50% by 2030 here (Stora Enso sets ambitious goal of 100% regenerative solutions by 2050 and announces new 2030 sustainability targets)


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Dan Rivard
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