Benefits of the hydrodpower screw
Injury-free fish migration
Fish and other river life pass transverse structures and dams without injury and effortlessly.
Low space requirements
The thin hydropower screw requires a minimum amount of construction work, protects the riverbed and is integrated inconspicuously into the landscape.
High efficiency
Up to 70% electrical efficiency (=power output at electrical connector terminals) – even if the water level is low – thanks to the patented, gap-free and fish-friendly construction.
Location | Country | River | Maintainer | Predominant fish | Flow | Drop height |
---|---|---|---|---|---|---|
Großarlbach | Austria | Großarler Ache | Energiebetrieb Hettegger GmbH | trout, grayling up to 80cm | 2.7m | |
Scheibbs | Austria | Erlauf | EVN naturkraft GmbH | Danube salmon, 80cm | 5,6m | |
Ainring | Germany | Hammerauer Mühlbach | Stahlwerk Annahütte Max Aicher GmbH & Co. KG | Danube salmon, 100cm | 7.17m | |
Spittal on the Drau | Austria | Lieser | Lieser Energie GmbH | Danube salmon, 80cm | 4.6m | |
Berndorf | Österreich | Mürz | Norske Skog Bruck GmbH | Danube, 100cm | 6.6m |
Frequently asked questions
How high is the efficiency of the Hydroconnect hydropower screw with double rotating cylinders?
The mechanical efficiency is up to 90%. This results in electrical efficiency, minus all the mechanical losses, of 65% even for small systems. In larger systems, the electrical efficiency increases to 70% and more.
With what water supply does the system work for electricity generation and fish migration?
The system can be used starting with a supply of 100 l/s. The highest flow rate is currently offered at 6,500 l/s. These systems are very well suited as residual water machines or as main machines for small locations.
What is the service life of a hydrodynamic screw with double rotating cylinders?
The HYDROCONNECT hydropower screw with double rotating cylinders is calculated for fatigue strength. The selected corrosion allowance with the choice and thickness of material ensures a minimum service life of 30 years.
Has 100% freedom from injury been proven by recognised centres for all river life?
Yes, of course. All research programmes and monitoring studies were accompanied by the Institute for Hydrobiology and Water Management (HG) at the University of Natural Resources in Vienna (BOKU). 100% freedom from injury was confirmed by BOKU in numerous studies.
Your project
Additional questions? Contact your product account manager Nino Struska. He would be happy to answer your questions and help you during the planning and realisation.
Enquiries und infomaterial
Your personal product account manager
Nino Struska
+43(0) 720 720 900-850
nino.struska@hydroconnect.at
Reseller
In several EU-countries our system is being offerd by our resellers.