Resource Assessment 2011

Tuesday 10 & Wednesday 11 May 2011 SQUARE – BRUSSELS MEETING CENTRE, Brussels, Belgium

Announcement: 38 teams took part in the first offshore CREYAP exercise – results were presented at EWEA OFFSHORE 2013

Comparison of Resource and Energy Yield Assessment Procedures – CREYAP Part 1

Many thanks to the 36 organisations that submitted results to the comparison of resource assessment procedures!

Participating resource assessors downloaded a high quality pack of data and performed an independent pre-construction assessment of the energy production of a wind farm.

The results from all participating organisations were analysed and the findings were compared and contrasted anonymously as a novel and practical conclusion to the workshop.

Download the presentation of the CREYAP Part 1 results from session five of the programme page


Description of Input Data and Model Outputs (MS Word – 200KB)

This document outlines the input data that was provided as well as the required results format of the Comparison of Resource and Energy Yield Assessment Procedures exercise, in which parties were invited to carry out a wind speed and energy yield prediction for a wind farm project with the aim to compare results of different industry standard models and approaches.

NB: All digital data supplied for this excercise is under licence and once used for the purposes of this study should be deleted.

If you have questions relating to the comparison excercise or the data provided email Tim Robinson, EWEA: [email protected]

The list of CREYAP Part 1 participiants:


2EN, Greece Natural Power, France
3E, Belgium Nordex, France
CENER, Centro Nacional de EnergíasRenovables, Spain ORTECH Power, Canada
Center for Renewable Energy Sources(C.R.E.S.), Greece Prevailing Ltd, UK
Det Norske Veritas – DNV, UK REpower Systems AG, Germany
DONG Energy A/S, Denmark RES – Renewable Energy Systems Ltd, UK
Dulas, UK RES Americas Inc., USA
Ecofys, Netherlands RWE Innogy, Germany
EMD International, Denmark Samsung Heavy Industries, Republic of Korea
Eolfi – Veolia, France SgurrEnergy, UK
ESB International, Ireland Suzlon Wind Energy A/S, Denmark
GAMESA Innovation & Technology, Spain The Wind Consultancy Service, UK
GL Garrad Hassan, UK Tractebel Engineering, Belgium
ITOCHU Techno-Solutions Corporation, Japan Vestas Asia Pacific, India
Kjeller Vindteknikk AS, Norway WIND-consult GmbH, Germany
METEODYN, France WindGuard, Germany
Mott MacDonald, UK WindSim AS, Norway
MS-Techno Co., LTD, China Windtest Grevenbroich GmbH, Germany