Forces Motrices de la Gougra, Upper Rhône river basin (Alpiq, Switzerland)

Alpiq, Switzerland

Forces Motrices de la Gougra

Forces Motrices de la Gougra SA (FMG) is a multi-reservoir, multi-plant asset in the Anniviers and Tourtemagne valleys in Switzerland. It is majority-owned and managed by ALPIQ. Currently, FMG is going through a decade-long refurbishment initiative that aligns with ReHydro’s goals.

Project info

Owner : ALPIQ (54%), Rhonewerke AG (27.5%), Commune d’Anniviers (7.71%), Administration Municipale de Sierre (7.5%), Administration Communale de Chippis (1.79%), Sierre-Energie SA Siesa (1%), Administration Communale de Chalais (0.5%)
Type : Storage hydropower
Turbines : 9 Pelton
Constructed : 1958-1959
Installed Capacity [MW] : 188
Reservoir Capacity [mil m3] : 77

01. Objectives

Develop a monitoring system that integrates indicators such as turbine efficiency, sediment concentration, runner damage index, and frequency response into a smarter decision-making and optimisation tool

Quantify the impact of new sediment-passing turbine operating conditions on sediment connectivity downstream of the reservoir

Demonstrate innovative approaches to refurbishment project evaluations