Comparison exercises

As a service to its members and the community at large, EWEA is hosting comparison exercises that aim to provide the industry with better modelling methodologies and tools, share experience and move towards best practice for the industry.

Since 2011, four exercises have been run on comparing resource and energy yield assessment procedures with a total of 130 teams taking part. The first two exercises focused on onshore, the third and fourth ones on offshore.

The first mesoscale modelling benchmarking exercise was run in 2015.

EWEA would like to thank the partners organisations for their significant input, without which these exercises would not be possible.

EWEA acts as a neutral platform and a facilitator by co-ordinating, hosting and promoting the exercises and organising events at which the results are presented. The exercises are organised on a non-commercial basis.

 

News

Comparison exercises at EWEA 2015

DTU's Niels Gylling Mortensen looked back at all past CREYAP exercises and set out the way forward in "Comparison of Resource and Energy Yield Assessment Procedures 2011-15: what have we learned and what needs to be done?" and Bjarke Tobias Olsen gave a presentation on "Simulating wind energy resources with mesoscale models: Intercomparison of state-of-the-art models" which drew on additional submissions for the mesoscale benchmarking exercise.

Both presentations were given in session "Annual energy production: let's get in right!" on Wednesday 18 November (17.00-18.30).

 

Recent exercises

Mesoscale Models Benchmarking Exercise

EWEA ran a Mesoscale Models Benchmarking Exercise in 2015.

Information about the exercise, how to take part and access the datapack is available on this page.

Initial results were presented at EWEA Technology Workshop Resource Assessment 2015. A full transcript as well as edited minutes of the discussion of the results are now available.

Extended results were presented at EWEA 2015 in Paris on 18 November 2015.

 

Offshore CREYAP part II

EWEA ran a second Offshore CREYAP in early 2015. The submission deadline was February 2015. Essential results were presented at EWEA Offshore 2015 in Copenhagen and a more in-depth presentation of results with a specific focus on wakes was given at EWEA technology workshop Resource Assessment 2015.

Information about the exercise, how to access the datapack is available on this page.

 

Upcoming exercises

Sound Propagation Comparison Exercise

EWEA plans to run a Sound Propagation Comparison Exercise.

The concept of the exercise was presented at EWEA's upcoming technology workshop Wind Turbine Sound 2014, in Malmö, on 10 December 2014.
View the presentation here.

Email us to be kept updated.

 

 

Past exercises

2015 - Mesoscale Models Benchmarking Exercise Results available in EWEA 2015 and EWEA Resource Assessment 2015 technology workshop proceedings Partners: DTU Wind Energy
2015 - Offshore CREYAP Part II Results available in EWEA OFFSHORE 2015 and EWEA Resource Assessment 2015 technology workshop proceedings Partners: DONG Energy, DTU Wind Energy
2013 - Offshore CREYAP Part I Results available in EWEA OFFSHORE 2013 proceedings Partners: RES LtdDTU Wind Energy, The Crown Estate
2013 – CREYAP Part II Results available in EWEA Resource Assessment 2013 proceedings Partners: RES Ltd, DTU Wind Energy
2011 – CREYAP Part I Results available in EWEA Resource Assessment 2011 proceedings Partners: RES Ltd, DTU Wind Energy