Wikipedia
Steffturbine
The Steffturbine is a turbine for generating electrical energy using hydropower.
The Steffturbine is suitable for the use in micro or small hydro-electric power stations and can be operated as a modular system. Modules can be deployed with heads of between 3 and 5 meters and maximum flow rates of 0.5 m³/s to generate up to 10 kW of energy. The Steffturbine has been developed by Walter Reist Holding AG and is marketed as a complete system with generator and control electronics included.