The SCHOTTEL Instream Turbine is a real lightweight and yet a robust generator of hydrokinetic energy. It is based on the fact that reducing turbine size leads to a better ratio of power and material use.


A SIT produces 70 kW rated, grid-ready electric power based on two rotor diameters (4.0m and 6.3m). Thanks to its modular approach, a higher overall power can be reached with a larger number of turbines.


SIT can be implemented in river and tidal applications.



  • Horizontal axis free flow turbine
  • Passive-adaptive composite blades
  • No active pitch mechanism
  • Safe and reliable sealing system
  • Robust drive train with two-stage planetary gearbox
  • Optional multi-disc brake
  • Induction generator
  • Passive cooling by ambient water
  • Innovative control strategy



  • Robust, simple and lightweight
  • Low investment cost
  • Low maintenance cost
  • Scalable in terms of quantity
  • Flexible modular approach
  • High efficiency and low thrust
  • Easy transportation




The Power of the Tides
Follow the journey of the SME and SCHOTTEL HYDRO teams, and learn more about our company philosophy as we develop and deploy the PLAT-I tidal energy platform in Scotland before its journey to Nova Scotia, Canada.
A brief look into the workings of an SIT250 - the 70kW version of the SCHOTTEL Instream Turbine. These turbines power PLAT-I, SME's inshore tidal energy platform.
Turning the Tide
SIT250 and PLAT-I featured on the "Made in Germany" section of Deutsche Welle's Business Magazine programme.