Swissgrid commissions new Chamoson–Chippis 380 kV line

Swissgrid's new 380 kV overhead line between Chamoson and Chippis in Valais went into operation on 30 September 2022, after roughly 32 years of planning and four years of construction. The about 30 km route with 77 pylons bundles four voltage levels (2×380 kV, 220 kV, 65 kV, 132 kV) and will replace some 90 km of old lines with 322 pylons by 2027. The line removes a key transmission bottleneck for Valais hydropower and links the region to the wider Swiss grid.