Rizzanese Hydropower Plant
France, Corsica
2009 – 2010

The Mediterranean island of Corsica procures its entire electricity supplies from the French mainland. To prevent power failures caused by storms, the first hydropower plant was built directly on the island.
To this aim, a Herrenknecht Gripper TBM with a diamter of 3.5 meters drove a tunnel with a total length of 5,800 meters with monthly best rates of 476 meters in hard rock by October 2010. At the end of this tunnel a 27-MW turbine was installed for more electrical independence of the Corsicans from the French mainland.

Data Sheet

Country, Location

France, Corsica


2009 – 2010




Granite, rock

Tunnelling length

5,800 m

Machine Data

1x Gripper TBM:
Diameter: 3,500 mm
Lining method: Rock support
Cutterhead power: 800 kW
Torque: 1,700 kNm

Your contact person Contact us

Steffen Dubé President and General Manager Herrenknecht Tunnelling Systems USA Inc.
Gerhard Goisser Commercial Manager Herrenknecht Tunnelling Systems USA, Inc.