Assessment of wind resources and annual energy production of wind farms

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1 Downloaded from orbit.dtu.dk on: Aug 22, 2018 Assessment of wind resources and annual energy production of wind farms Hasager, Charlotte Bay Publication date: 2012 Document Version Publisher's PDF, also known as Version of record Link back to DTU Orbit Citation (APA): Hasager, C. B. (2012). Assessment of wind resources and annual energy production of wind farms [Sound/Visual production (digital)]. EURISY conference: Renewable energy: The added value of satellite solutions for SMEs, Graz, Austria, 11/09/2012 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Users may download and print one copy of any publication from the public portal for the purpose of private study or research. You may not further distribute the material or use it for any profit-making activity or commercial gain You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

2 Assessment of wind resources and annual energy production of wind farms Charlotte Bay Hasager DTU Wind Energy, Denmark I acknowledge colleagues! 1 DTU Wind Energy, Technical University of Denmark

3 Content Wind power in Europe key numbers Assessment of wind resources Annual energy production (AEP) of wind farms Earth Observation data Summary DTU Wind Energy has 240 employees since 1st January Merger: Former Risø DTU Wind Energy at the National Laboratory for Sustainable Energy merged with people from DTU MEK and Risø Material Science Department. 2 DTU Wind Energy, Technical University of Denmark

4 Wind power in Europe key numbers The total wind power capacity in Europe is 96 GW with 9 GW new onshore and 0.8 GW new offshore in Wind energy has an annual growth of 15.6% during the last 17 years. In EU 6.3% share of total electricity consumption is powered by wind energy (2011). Denmark plans to increase from 26% (2011) to 50% (2020) share of wind energy. Source: EWEA 3 DTU Wind Energy, Technical University of Denmark

5 Assessment of wind resources European Wind Atlas (1989) WAsP icon 4 DTU Wind Energy, Technical University of Denmark

6 WAsP Analysis procedure ( ) Observed Wind Climate + sheltering obstacles + roughness map + elevation map Generalised Wind Climate Application procedure ( ) Generalised Wind Climate + sheltering obstacles + roughness map + elevation map Predicted Wind Climate Wind farm production Predicted Wind Climate + power and thrust curves + wind farm layout Predicted wind farm AEP 5 DTU Wind Energy, Technical University of Denmark

7 Linear interpolation 6 DTU Wind Energy, Technical University of Denmark

8 Global annually averaged 10-meter wind map Source: European Center for Medium Range Weather Forecasting (ECMWF) - ERA Interim reanalysis 7 DTU Wind Energy, Technical University of Denmark

9 Regional and local wind map Egypt Mesoscale wind map Microscale wind map 8 DTU Wind Energy, Technical University of Denmark

10 Example winds in mountains 9 DTU Wind Energy, Technical University of Denmark

11 Annual energy production (AEP) of wind farm Wind speed distribution at hub height + wind turbine power curve = AEP calculation and prediction Based on n previous years Valid for wind turbine lifetime (20 year) 10 DTU Wind Energy, Technical University of Denmark

12 Annual Energy Production (AEP) of wind farm 11 DTU Wind Energy, Technical University of Denmark

13 Example offshore 12 DTU Wind Energy, Technical University of Denmark

14 Land information at sufficient scale 13 DTU Wind Energy, Technical University of Denmark

15 Earth Observation roughness from land cover 14 DTU Wind Energy, Technical University of Denmark

16 Elevation using Shuttle Radar Topography Mission Courtesy: Niels Gylling Mortensen, DTU Wind Energy 15 DTU Wind Energy, Technical University of Denmark

17 Offshore Source: 16 DTU Wind Energy, Technical University of Denmark

18 Satellite SAR wind ocean surface wind maps QuikSCAT 17 DTU Wind Energy, Technical University of Denmark

19 Satellite SAR wind ocean surface wind maps DTU Wind Energy Johns Hopkins University Envisat FP7 project NORSEWIND at contains offshore wind atlas for Northern European Seas based on 9000 Envisat ASAR wind maps valid at 10 m. Research on lifting winds to hub-height is in progress. 18 DTU Wind Energy, Technical University of Denmark

20 Wind farm wake observed from satellite EERA DTOC European Energy Research Alliance Design Tools for Offshore Wind Farm Clusters FP7 project on wake and grid issues Courtesy: Merete Badger, DTU Wind Energy 19 DTU Wind Energy, Technical University of Denmark

21 DTU Wind Energy: WAsP & WAsP Engineering Political boundaries according to Golden Software's WORLD.GSB WAsP/WEng software since 1987/2001 More than 4000 licensed users Used in 110+ countries and territories 20 DTU Wind Energy, Technical University of Denmark WAsP/WEng courses since 1991/2001 More than 100 courses in 25 countries 186 certified WAsP users in 27 countries

22 Summary Earth Observation data can be useful for the input to WAsP onshore. Earth Observation data can be useful for the offshore. 21 DTU Wind Energy, Technical University of Denmark