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Consumption of natural resources

The construction of the main grid requires natural resources. Most of the structures in transmission lines, such as steel towers and conductors, are made from various metals. Concrete is also used in the foundations.

We design the electricity transmission system with a long-term horizon that looks years into the future, and we are a pioneer in the life cycle management of the main grid. We endeavour to develop the grid cost-efficiently with the minimum possible losses, thereby improving energy efficiency.

Various metals and concrete are left over when we dismantle old parts of the main grid. The waste is sorted so that we can maximise the rate of recycling and reuse. We report our recycling and reuse rates in our annual report.


In 2020, the total volume of waste amounted to approximately 10,800 tonnes, of which 95 per cent was reused, and 62 per cent was recycled.