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Winznau small-scale hydropower plant

At the end of 2003, 1.2 million Swiss francs were invested to replace the old turbine generator group with a new system. The small hydropower plant now generates approximately 60% more electricity than the old weir turbine. The electricity it generates covers the consumption of around 480 households in the region.

Facts & figures

Plant type:

Small-scale hydropower plant


Winznau weir near Olten, Switzerland

Number of turbines:

1 Kaplan turbine


0.28 MW


100 %


1962, refurbishes in 2003/2004

Average annual production:

2 GWh

Guided tours:



In service