Steinsau weir, Alsace (FRA)

The existing Steinsau weir on the river Ill near Erstein (Alsace, France) is equipped with six pieces of Landustrie hydropower jacks. The weir dates from the late nineteenth century and ensures that the downstream regions of Erstein and Strasbourg do not flood at high tide.
Part of the restoration and renovation of the weir was the installation of jack-up turbines to generate renewable energy.

In the tender issued by ACAL (Région Alsace Champagne-Ardenne Lorraine), the innovative design of the Landustrie hydropower jacks was decisive. The jacks will each generate about 30 kW of energy at a capacity of 3 m3/sec and a fall of 1.4 metres.