The Flumenthal power station was first put into service in 1970. Following measures to increase the capacity to 27 MW, the three turbine-generator groups now generate an average of 146 GWh of renewable hydroelectric power per year. This corresponds to an increase of 6 percent.
The modernisation of the power station between 2006 and 2009 comprised a general overhaul of the machine groups with the installation of new turbine shafts and flow-modified turbine wheels, the replacement of the electrical control and regulation equipment, as well as the auxiliary power and generator systems.
run-of-river power plant
Riedholz, Switzerland
3 bulb turbines
27 MW
62.1%
1970/2009
146 GWh
No
In service
Alpiq will build a completely new fish pass at the Flumenthal hydropower plant. It will fulfil the current standards for fish migration in the River Aare. The construction work will be completed by the end of 2023. Alpiq Hydro Aare AG is investing 16 million Swiss francs.
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