Power transmission grid of Fingrid
The electricity power system in Finland consists of power plants, nation-wide transmission grid, regional networks, distribution networks and electricity consumers. The transmission grid managed by Fingrid Oyj encompasses approximately 14,600 kilometres of transmission lines and nearly 120 substations. About 77 per cent of all electricity transmitted in Finland is transmitted through this grid.
The power system in Finland is part of the inter-Nordic power system together with the systems in Sweden, Norway and Eastern Denmark. Moreover, there are direct current transmission links to Finland from Russia and Estonia for the connection of their systems, which work under different principles, to the Finnish power system.