Grande Dixence Hydroelectric Complex Completes Major Renovation in Switzerland
The Grande Dixence Hydroelectric Complex has undergone a CHF 240 million renovation, enhancing its capacity and efficiency. This initiative is crucial for bolstering Switzerland's renewable energy supply, particularly during winter months, as the complex is expected to support the energy needs of approximately 500,000 households annually.

The Grande Dixence Hydroelectric Complex, featuring the world's tallest gravity dam at 285 meters, has completed a significant renovation totaling CHF 240 million. The upgrades include overhauls of the 290 MW Fionnay and 390 MW Nendaz power stations, along with refurbishments of the penstock connecting Lac des Dix to the Rhone plain.
The renovation encompassed 89 sub-projects from 2016 to 2023, ensuring the facility can produce over 2 billion kWh annually. The enhancements, including new equipment and systems, aim to increase energy output by up to 550 million kWh per year. This initiative is essential for maintaining Switzerland's electricity supply and optimizing renewable energy storage capabilities.




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