FishFlow Innovations products

In the Netherlands alone more than 3000 pumping stations contribute to the watermanagement. For fish, pumping stations present migration barriers that obstruct the natural connections between adjacent water bodies. The FishFlow fishway for pumping stations consists of a by-pass system that guides fish around the potentially lethal pumps.

The fish-friendly low pressure water turbine of Pentair Fairbanks Nijhuis / FishFlow Innovations has been tested successfully on its fish-friendliness early August. For the performance of the test a scale model of the turbine (with a propeller diameter of 800 mm) was used and installed at the pumping station Leeghwater Buitenkaag* in the Netherlands. With the application of fish-friendly turbines hydroelectric energy generation will become possible in a fish-friendly manner. The performance of the practical test with live fish** was executed by the independent institute IMARES Wageningen UR. Their report of the turbine test showed a fish-friendliness of 100 percent for eel, still after the assessment of the deferred mortality after 96 hours. Even eel with a length of approx. 85 cm passed the turbine unscathed. In a subsequent test later this year the fish-friendliness for other fish will be determined.