Chatelard – Nant de Drance Line is a 380kV underground line with a length of 6.5km from Chatelard, Valais, Switzerland, to Nant de Drance, Valais, Switzerland.

Construction works on the Chatelard – Nant de Drance Line started in 2017 and the project was commissioned in 2018.


The Chatelard – Nant de Drance Line, which is an underground line, is being operated by Swissgrid. The Chatelard – Nant de Drance Line is a new line. The line carries alternating current (AC) through double circuit cable.

Chatelard – Nant de Drance Line project development status

The development of the Chatelard – Nant de Drance Line project was approved by Swiss Federal Office of Energy (SFOE) in 2017 and the project works were completed in 2018.

About Swissgrid

Swissgrid AG (Swissgrid) is a national grid company that operates, maintains, modernizes and expands the electricity transmission system in Switzerland. The company provides additional services, such as balance group and congestion management or the ancillary services as part of the European and Swiss grid operation. It conducts the import and export of electricity to maintain the utilization levels. Swissgrid works in cooperation with other companies in energy sector, business, politics and the population for the development of solutions to expand the Swiss transmission grid. It is a member of the European Network of Transmission System Operators.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.