Minesto has together with German tidal turbine manufacturer Schottel Hydro completed the turbine design of Minesto’s tidal power plant Deep Green. The Swedish marine energy company has now placed an order for a prototype of the turbine, with delivery in early 2017.
The order of the so-called Power Take Off system is the first result of the strategic technology partnership between Minesto and Schottel Hydro, which began in December 2015. During 2016 and 2017, Schottel Hydro will deliver a customised turbine solution which will optimally fit the requirements of Deep Green, Minesto’s tidal power plant.
Compared with the first generation Deep Green, the turbine’s performance has been improved by about 10 percent. The development of the turbine has, among other things, resulted in a larger rotor diameter. The rotor now has five blades instead of three. The design has been established and verified through model tests by German Schiffbau Versuchsanstalt in Potsdam.
The model scale tests prove the turbines performance and cavitation behavior to be advantageous compared to previous designs.
The development of Deep Green now enters the next phase where the design of the full-scale system will be completed. At Schottel Hydro the manufacturing of the prototype and the factory acceptance test will be tackled.
In parallel with the final design Minesto will procure subsystems and components which will be assembled into a first full-scale demonstrator. It will then undergo final functionality testing. After that, Deep Green will be implemented in full scale on the offshore facility in Wales during 2017.