The transition towards sustainable energy sources requires the extra-high-voltage grid to be upgraded and expanded to comply with the amount of electricity that will need to be transmitted in the future.
On 8 January 2021, a grid frequency deviation occurred in Europe. ENTSO-E published an intermediate report on the incident on 26 February. In an interview, Markus Imhof, Head of Balancing & Scheduling, explains the role that Swissgrid played in this event.
Swissgrid and SiL have renovated their electrical facilities at the Romanel substation. The work has now been completed. Yves-André Bagnoud, Head of the Research & Project Office at Lausanne industrial Services (SiL), tells us about the history of this substation and its importance for SiL.
The grid needs to be upgraded and expanded in line with demand to ensure the successful implementation of the Energy Strategy 2050. That much is clear. But grid projects often take longer than planned. Why is that?
The importance of the Gotthard route applies not only to road traffic, but also to electricity transmission. Swissgrid's extra-high voltage line Mettlen – Airolo runs via the Gotthard Pass and is vital for north-south electricity transport.
Working on live extra-high-voltage lines is possible
All electricians will tell you that the first thing they learned at the start of their training is to make sure the power was off before working. Since 1 October 2020, this is no longer entirely correct in Switzerland.
Future Grid Maintenance Managers at Swissgrid have to complete a very demanding training programme. After all, they are responsible for the safe operation and maintenance of the lines and substations in their assigned area.