The planning and construction of a transmission line is a multi-stage process prescribed by law. In addition to economic and technical aspects, land use and environmental considerations are also taken into account.

Field investigations constituting the basis of the planning of a new line route

In accordance with the nation-wide land use objectives stipulated in the Land Use and Building Act, the objective is to primarily utilise existing rights-of-ways in the planning of transmission line routes. Before the construction of new transmission lines, the transmission capacity of the existing grid is utilised as effectively as possible.

The final new line route and the tower locations are selected on the basis of field investigations. In the planning of new transmission line routes, Fingrid seeks solutions which avoid the immediate proximity of residential areas. Fingrid mitigates the adverse land use, landscape and environmental effects by the proper placing of towers and through technical solutions (such as towers intended for arable land, power line bird markers).

While planning transmission line routes, Fingrid takes into consideration the available environmental data, compatibility with other land uses in the relevant area, and aspects which have surfaced in interaction with various parties.

The goal is to minimise the adverse impacts within the boundary conditions of the public interest as well as technical and commercial attributes.