Posters

Abstract

The North Sea is already playing a vital role in the provision of energy to Europe. The ambitious plans for huge wind energy build out will mean even greater importance of this resource. The countries whose Exclusive Economic Zones occupy the North Sea have the responsibility for the proper use of this resource. For example, how will future scenarios for the wind energy deployment in the waters of the Netherlands change the resources in German waters? To what extend will Danish wind energy deployment scenarios impact Germany’s resources? Such questions are of interest for national planners, and developers and operators of wind farms alike.    Models to assess these impacts are being developed in our wind energy research and development community. The Explicit Wake Parameterization, within the WRF mesoscale model, is one such development from DTU Wind. It is now in its 2nd generation (EWP2.0), and configurable in two modes, either using Turbine-Layout-Aware or with a new turbulent kinetic energy (TKE) treatment, called Latent-Kinetic-Energy.  Both EWP2.0 modes are validated against X-Wakes flight measurements. The EWP2.0 Latent-Kinetic-Energy mode indeed captures the measured TKE better, while also reducing the wake deficit slightly compared to EWP2.0 Turbine-Layout-Aware mode. On the other hand, EWP2.0 Turbine-Layout-Aware mode gives a better match to the magnitude of the wake deficits. These results are very promising, and signal the simultaneous combination of the new modes, namely the turbulent kinetic energy and turbine-layout-awareness will achieve even better results. This is planned for the 3rd generation of the parameterisation, EWP3.0. These studies are part of the EuroWindWakes project bringing stakeholders in Germany, the Netherlands, and Denmark to facilitate collaborative efforts on international maritime spatial planning. Also of interest to this audience is the project’s novel benchmark initiatives to bring various multi-scale wake modelling techniques from applied science and industry standards, in which engagement from the sector is sought. The benchmarking will also lead to guidance on the most suitable models to use under different use cases. In addition, the project has led to the release of the EuroWindWakes Open European Offshore Wind Turbine Dataset, and this too will be described and the sector invited to use it.