Metsä Group has 35 production facilities in eight European countries. Each mill has an environmental permit to determine the boundary conditions for the operation. The environmental permit has typically limit values, for example to emissions to water and air and environmental noise.
Minimising effects on water
The world's water resources are unevenly distributed, and most of the water is in the oceans. Only 3% of the water in the world is fresh water, and is mostly tied up into glaciers or snow. Metsä Group's production is mainly in the Nordic countries, which are, according to WBCSD (World Business Council for Sustainable Development), the world's water richest region.
Given the need for water in the manufacturing of forest products, mills have been built along the lakes and rivers. Although water is used, the Finnish forest industry is a modest user of water: the industry uses only 0.2% of the available water resources Finland. The process water is cleaned thoroughly before returned back into the rivers, lakes or sea. About half of the water is used for cooling machinery. As the cooling water runs in a separate system there's no need to clean it after use.
Minimising the impact of the forest industry operations extends beyond the mills. We want to preserve the valuable natural waters in the forests. The impact of forestry on water is minimised using a variety of methods – for example, forest certification requires buffer zones. Forests are vital to the water cycle, since they maintain the balance between precipitation and evaporation as well as improve the quality of groundwater by reducing the absorption of surface runoff into groundwater. In the Boreal region, evaporation happens mostly in forests. Forests also do not need to watering, as, for example, in Finland it rains 600–700 millimetres per year.
Metsä Group is not resting on its laurels when it comes to resource efficiency and water. Metsä Group’s objective is to improve the use of process water by 25% per product tonne in 2018-2030. Since 2018, the Group’s use of process water has decreased by 5.4%per product tonne. The target will be achieved both through investments, such as in new technology, and by streamlining and optimising the processes.
Read Case about the use of water at the mills
Reducing emissions is the fight against climate change
As part of resource efficiency, Metsä Group's main means of combating climate change are to increase the share of bioenergy and improve energy efficiency. We have reduced emissions of fossil-based carbon dioxide (Scopes 1 and 2) have declined by 22% per tonne produced compared to 2018.. Our objective is that our mills are fossil free by 2030.
During the recent years, Metsä Group has invested in significant renewable energy projects which have increased the share of renewable energy in our operations. 90% of the fuels used by Metsä Group are wood-based biofuels. Metsä Group produces over 15% of Finland's renewable energy.
We monitor the development in our mills’ energy efficiency with an energy efficiency index. It is calculated as a ratio between all the electricity, heat and fuel used by production to the volume of production. In 2021, the index was 99.8. Our goal is is to have an index of 90 in 2030.
To improve energy efficiency, we are looking for ways to reduce heat and electricity consumption. Most of the energy is used at the mills for example in manufacturing high-yield pulp, pumping, and drying pulp, board and paper. That is why energy efficiency is dependent on the fluency and continuity of production.