CrossWind starts wake effect reduction project

CrossWind starts wake effect reduction project

CrossWind, the joint-venture between Shell and Eneco that is responsible for the development of the Hollandse Kust Noord wind farm, and partners signed the agreement today for the ‘Dynamic Wind Farm Flow Control’ project. The project, aimed at reducing the wake effect by using real-time data, is part of CrossWind’s innovation plan that will demonstrate five effective solutions for improving the flexibility and reliability of power supply of Hollandse Kust Noord and future wind farms.

CrossWind won the development rights for the Hollandse Kust Noord wind farm in July 2020. The offshore wind farm is located around 18.5 km off the coast of the province of Noord-Holland and will feature 69 Siemens Gamesa Renewable Energy (SGRE) wind turbines, type SG 11.0-200 DD of 11 MW each. Hollandse Kust Noord will include five technology demonstrations that could be implemented at full-scale in the future. In addition to Reduction in wake effect, other technologies are in the area of: Intelligent wind turbines, Floating solar energy, Storing energy and Research & integration.

For the Dynamic Wind Farm Flow Control project CrossWind is working together with main partners TU Delft, Siemens Gamesa Renewable Energy (SGRE), and GROW Foundation. The project runs till December 2028.

Closed-loop active wake steering & HELIX active wake mixing

The wake effect describes how wind can slow after hitting a turbine, affecting those turbines situated further away. The project will develop and implement two technologies: “closed-loop active wake steering” and “HELIX active wake mixing”. The wake steering involves the yaw control of the individual turbines, which will divert the wake, so it does not impact the next wind turbine. The wake mixing technology involves letting one turbine turn quicker, which leaves more wind for the turbine behind it.

Research and implementation

Six PhD students and two postdoc researchers will be working on the innovation. The project has several phases, which includes initial desktop and computational studies, wind tunnel experiments, an onshore research wind turbine experiment, and the technologies will eventually be implemented in one of the SG 11.0-200 DD wind turbines supplied by SGRE. Finally, the potential impact of the full roll-out of these technologies across the entire wind farm is researched, as well as how these technologies could impact the design and power production of future wind farms. Source: GROW & CrossWind