Transmission lines


We aim to minimise the harmful impacts caused by transmission lines within the limits of public interest and the technical and economic boundary conditions.


  • We make use of the existing main grid transmission capability as efficiently as possible
  • We primarily use the existing transmission line routes
  • We avoid building in the immediate vicinity of settlements
  • We mitigate the adverse effects on land use, landscapes and the environment through the optimal placement of transmission line towers and technical solutions (such as placing towers on fields and attaching markers to prevent bird strikes)
  • We ensure that the threshold values for electric and magnetic fields, as specified in legislation, are not exceeded.

When we build transmission lines, we aim to safeguard the system security of the main grid and minimise the adverse effects of construction on the environment, landowners and nearby residents.


  • If possible, we schedule work when frost is present or at times that are otherwise favourable in environmental terms
  • We announce construction to landowners in advance
  • We ensure chemical safety on our worksites by storing fuels and lubricants appropriately, instructing workers on safe work practices, and keeping spill response equipment at hand.
  • We rectify or compensate for any damage we cause, and we clean up after ourselves on construction sites.

The aim of transmission line maintenance is to ensure that transmission line structures and areas remain safe and comply with electrical safety regulations. Fingrid endeavours to conduct maintenance with minimal adverse effects on landowners and road owners.


  • The use of roads is agreed upon in accordance with the recommendations on charges for the use of private roads.
  • We inform landowners of any large-scale maintenance work in advance.
  • We rectify or compensate for any damage we cause, and we clean up after ourselves.

Clearing in rights-of-way and processing trees in border zones

Fingrid endeavours to ensure the system security of the transmission line when it clears transmission line areas and processes trees in boundary zones. Fingrid seeks to minimise the adverse effects on the environment, landowners and neighbours when it conducts clearing and boundary zone processing.


  • Transmission line areas are cleared mechanically via selective clearing. In other words, juniper trees and other low-growing vegetation are allowed to remain in the right-of-way.
  • Any valuable natural assets identified during or after the project planning phase are protected during clearing and felling work.
  • For the purpose of preserving the landscape and recreational opportunities, it may be necessary to increase the frequency of clearing.
  • We inform landowners of clearing and boundary zone processing work in advance.
  • We always make separate agreements with landowners concerning the treatment of yard and garden areas.
  • We encourage the diverse utilisation of transmission line rights-of-way.
  • We support research on the natural conditions and use of transmission line rights-of-way.


At the end of a transmission line’s life cycle, we send the dismantled material for recycling or reuse.