People & environment
A total of 19 buildings within the study perimeter were classified as OMEN. The magnetic field was calculated for all OMENs. In 18 OMENs, the system limit value of 1 microtesla was maintained. In one OMEN, the system limit was exceeded slightly – a dispensation has been granted for this.
The new line routing is used in the entire project perimeter south of the existing building zones and residential areas. By moving the line from the banks of the Rhône and out of the open agricultural land to the wooded hillsides, the potential conflict of the existing 220 kV line from the construction zones in several communities will be resolved. In terms of the landscape, there will be a general improvement over the existing situation.
Due to the bundling with the 132 kV railway power line and the 65 kV line on the same pylons as well as to the higher voltage, however, the pylons will be taller than the existing 220 kV line.
The majority of the pylon sites are located in the forest. Other locations are used intensively for agriculture or include semi-dry meadows and extensively grazed areas.
Along the Ernen – Ulrichen section, the clearing work along the line route was carried out in the spring of 2018. This was necessary to ensure safety on the construction site and safe operation of the line. An approximately 30-metre-wide corridor was cleared over a distance of around 16 kilometres. Trees and shrubs are beginning to grow again in this area. Over time, this will allow the line to blend into the landscape better.
A total forested area of 15,288 m2 had to be cleared to install the line at the pylon locations along the Ernen – Ulrichen section. The temporary clearing of 22,572 m2 is required to provide access to the building sites and pylon locations. Suppression is necessary for an area of 292,471 m2.