Producer of hydropower
Clean and renewable energy
The Emosson dam, built between 1969 and 1973, is at the heart of a major hydroelectric complex straddling Switzerland and France.
Two hydropower plants supply close to 3% of the electricity generated in Switzerland. Hydropower is a home-grown, storable, flexible, renewable and CO2-free form of energy.
With its 225 million m3 of water, Emosson Lake is the 2nd biggest artificial reservoir in Switzerland.
Franco-Swiss
The Emosson complex covers 2 national territories
850 million kWh
Average annual production by the facility
225 billion litres
Volume of Emosson Lake dam
1967 - 1975
Construction of the facility
News
Fishing guide Haute-Savoie / Safety on waterways
In partnership with the Haute-Savoie Federation for fishing and aquatic environment protection (AAPPMA), Electricité d'Emosson joins forces in…
Replacement of transformers - Bâtiaz hydropower plant
The year 2023 was marked by a large-scale project to replace the transformers and control systems of the two production units.
Discover the behind…
On the road to the 2025 UCI Mountain Bike World Championships
In 2 years' time, Valais will host the UCI Mountain Bike World Championships. Jolanda Neff, Camille Balanche and Lucas Huppert take you on a quest for…
At the heart of the Emosson dam in Valais
Emosson zipline
Walking trails in Valais
Staff Emosson SA
Our teams in pictures
Hydropower
Procurement
Hydropower is the mainstay of Switzerland’s electricity supply and provides more than half of the country’s power production. In France, it represents 12% of total production.
Hydropower plants
Different types of power plant
Three types of hydropower plant are in use in Switzerland. Run-of-river power plants, storage power plants and pumped storage power plants.
