4C is now TGS

We are excited to announce a significant milestone in 4C Offshore's journey. Our integration into the TGS family marks the beginning of a new era in offshore wind market intelligence.

Learn what this means for you!

SCHOTTEL HYDRO launches new turbine generation

By: Lewis Holdsworth 17/02/2015 SCHOTTEL

General Tidal

The new SIT SCHOTTEL Instream Turbine allows the harvesting of hydrokinetic energy for commercial projects at a reasonable cost. Hydrokinetic energy will play a major role as a future energy source and SCHOTTEL HYDRO makes it commercially viable for utility-scale and community scale network applications.

The SIT design purposely avoids complex subsystems: SIT features passive-adaptive composite blades with no need for any active pitch mechanism. Its drive train is standardised with a two-stage planetary gearbox and an induction generator. The ambient water ensures a steady operating temperature of the generator, thus no additional cooling mechanism is needed. An optional multi-disc brake is available for very harsh environments or in case it is required by a regulator.

“The simple turbine layout results in a robust and lightweight device,” explains Niels Lange, Managing Director of SCHOTTEL HYDRO, “In contrast to other instream energy converters with nacelle weights of 130 t to more than 200 t, a single SIT only weighs about 1t!”

SIT turbines are scalable in terms of quantity, depending on the required output. For example 1 MW of installed power requires about twenty SIT turbines. The multi turbine principle therefore leads to an optimum ratio of power and material use. Each of the turbines is connected to a frequency converter feeding into a common DC bus installed on the tidal platform. The system thus includes redundancy and ensures a high availability of the power plant. SIT turbines are compatible with various support structures: fixed land-based, floating, semi-submerged or full submerged platforms are suitable.

SCHOTTEL HYDRO identifies three flow speed standard classes for SIT applications. These classes result in three SIT rotor diameters optimized to the respective flow speed and application. Depending on the diameter and the current velocity, one SIT produces between 54 and 70 kW rated, grid-ready electric power. However, all SIT types rely on a standardised drive train, which makes the turbines a cost-effective component of customised projects.

Premium

4C Offshore Premium, our most popular subscription, gives you full access to use the 4C Offshore WebApp which includes exclusive offshore wind, transmission and vessel reports, news and downloads.

Request a 30 minute Demo

SCHOTTEL HYDRO launches new turbine generation

Back to News

Trending News!