As a living tradition, electrical know-how, particularly when it comes to energy innovation, is historically rooted in the Jogne Valley. Ever since the emergence of water-powered electricity generation at the end of the 19th century, the canton of Fribourg has shown a pioneering spirit by investing in large-scale projects. As early as 1893, a hydroelectric plant was built downstream of Charmey, helping to bring electricity to the region. A few years later, the Jaun power station, at the foot of the famous waterfall, was inaugurated by a courageous local family on Christmas Eve 1912.

The increase in demand for electricity and the desire to move away from dependence on coal following the First World War led to the construction of imposing works. The Broc power station, inaugurated in 1921, was fed by water from Lake Montsalvens, whose dam was a European first. At the instigation of Entreprises Electriques Fribourgeoises (now Groupe E), the engineer Alfred Stucki built a double-curved vault, both horizontal and vertical. The pioneering calculations for this design have since influenced the construction of arch dams throughout the world.

Today, hydroelectric generation remains an essential part of the energy transition, providing local, renewable energy. While the days of large-scale facilities - cultural and landscape landmarks - are long gone, innovation lies in small-scale production facilities that pay particular attention to preserving the natural environment and improving existing facilities.