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Our product range in the area of hydropower screws

Hydropower plants based on a screw are considered small hydro. But don’t be fooled by the term “small”. This technology is used to supply 13 million households with electricity across Europe, which is sparing the environment a burden of 29 million tonnes of CO2.

More power with the right technology
Systems from the Rehart-Power series can operate even with a head of just 1 m and a capacity of 500 l/s and then continue to work economically when anywhere else, the switch would long have been in the “OFF” position.

Many systems capitulate in lower water levels in hot summers and also fail to cope with flooding in the winter/spring. Cost-effectiveness then drops rapidly.

Something you can really count on
The hydropower screws already installed by Rehart operate for approximately 8,600 hours per year, meaning the systems are also baseload-compatible. Long maintenance intervals are good for operating results and the system even has no problems with dry running.

Good for cost effectiveness
The system works fully automatically and requires very little maintenance, which keeps operating costs low. Its service life is significantly higher compared to other means of generating electricity. Cost effectiveness also means that, taking into account the investment, maintenance and annual yield, a corresponding return and a short payback period can be achieved.

Cost effectiveness factors

Rule of thumb for calculating the kW-capacity of a hydropower plant

P = Q x H x7,2

(P) Power in kW
(Q) Flow in m3/s
(H) Head in m
(7,2) Estimated efficiency


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PDF enquiry form

You will help us to process your request quickly if you fill in our pdf-forms with as detailed information as possible and send it to us by FAX to +49(0)9835524 or by e-mail to anfrage@rehart.de.