Temporary voltage increase on the Bickigen – Chippis and Bassecourt – Mühleberg lines
Swissgrid is making the necessary technical and operational preparations to operate the Bickigen – Chippis and Bassecourt – Mühleberg lines at 380 kV on a temporary basis in the event of a critical supply situation.
The supply of electricity in the consumer centres in and around Aargau, Zurich and Lucerne is to be improved and ensured in the long term. On 31 August 2022, the Federal Council defined the planning corridor for constructing a new transmission line with a voltage of 380 kilovolts (kV) between Niederwil (AG) and Obfelden (ZH).
Electricity has been flowing along the upgraded extra-high-voltage line between Pradella and La Punt since 11 November 2022. This will eliminate a congestion point in the Swiss transmission grid. The Pradella – La Punt line is important for the security of supply in the canton of the Grisons and in Switzerland as a whole. As an alternative measure for the project, 1,100 distribution system pylons have been dismantled in the Engadin.
Yesterday, «MARI», the new, central European platform for the exchange of fast tertiary control energy, went into operation and the first European transmission system operators connected to the platform.
The new Chamoson – Chippis extra-high-voltage line is in service
Since 30 September 2022, electricity has been flowing along the new Chamoson – Chippis extra-high-voltage line. This has eliminated a major congestion point in the transmission of energy produced by the hydroelectric power plants in the Valais.