In Switzerland, a heat wave has no significant impact on the management of the extra-high-voltage grid.

Cows now graze on lush, green grass in meadows where pylons once stood. Before the areas in the Uri valley floor were approved for normal use, Swissgrid carried out extensive soil remediation at the former pylon sites.

Swissgrid is modernising the extra-high-voltage grid in the Upper Valais for future operation at a voltage of 380 kilovolts.

Nesting boxes for jackdaw colonies have been installed on pylons of the Swiss extra-high-voltage grid in Weinfelden and in the Saint-Triphon region. In other parts of Switzerland, too, electricity pylons provide a home for endangered bird species.

The assembly of the cable connection gantry for the La Bâtiaz – Le Verney underground link and the replacement of pylon 51 on the Chamoson – Romanel 380 kV overhead line are under way at the Verney construction site in Martigny. These two elements are essential for connecting the underground link to the Swiss extra-high-voltage grid. The underground cable link is scheduled to be commissioned in spring 2022.

It’s not just people who can freeze, our lines can too. And they can even crack. This blog post explains what Swissgrid is doing about this and how it works.

In the new brochure “Substations and Transformers – Important Elements in the Transmission Grid”, we describe the role of switchgear and transformers in the transmission grid in simplified terms.

EU transmission system operators have had to implement the 70% rule since 1 January 2020, with a transition period until the end of 2025. The impact of this rule on Switzerland is not easy to explain. We’ll try all the same.

Cable laying for the underground link between La Bâtiaz and Le Verney in Martigny is currently under way. Delivery of the twelve cable reels has been taking place in stages since the beginning of December, as the cables need to be warmed up before being installed in the gallery. The underground cable link is scheduled to be commissioned at the end of March 2022.

Since 5 November 2021, the electricity produced by the hydroelectric power plant in Fionnay in Valais has been transported via Swissgrid’s 220 kV Fionnay–Riddes overhead line.

Thanks to the initiative by naturschutzlösungen and Pro Natura, a new habitat is being created for yellow-bellied toads — under Swissgrid extra-high-voltage masts, of all places.