Offshore Wind Accelerator: Idealised Mega-Cluster Modelling

Call for proposals from companies and consortia interested in undertaking a study on the limits of applicability of different approaches for modelling very large offshore wind farms and clusters, and to understand where risks of systematic biases in far-field wake interactions might appear.

The main objectives of this work are to answer the key research questions below.

  1. At what wind farm size and/or distance downstream of large wind farms do lower order/idealised models start to differ from higher order models?
  2. How does wake recovery differ over large distances between idealised and time dependent models, in particular the impact of local wind direction changes?
  3. How do wake loss predictions differ between time-dependent and statistical approaches?
  4. How do turbine (e.g., actuator disk) and wind farm (momentum sink block) representations differ in terms of implementation and the comparability/suitability/limitations of modelled downstream wind farm wake?
  5. What physical mechanisms included in higher-order model and not in engineering models (e.g. Coriolis effect, gravity waves, local wind direction changes) are causing different wake behaviour between the different types of models? 

The deadline for clarification questions has now passed. Answers to the questions received are posted below. 

The closing date to receive tender submissions is 12:00 BST 16 June 2023. 

All clarification questions and tender submissions should be sent electronically, by their respective deadlines, to Tom Wishart at & Neil Adams at

Offshore Wind Accelerator (OWA)