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Wind Atlas for Egypt: measurements, micro- and mesoscale modelling

Wind Atlas for Egypt: measurements, micro- and mesoscale modelling. Niels G. Mortensen, Jake Badger & J. Carsten Hansen Wind Energy Department Risø National Laboratory. 2006 EWEC 1 March 2006. Acknowledgements. The ”Wind Atlas for Egypt” is the result of a team effort:

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Wind Atlas for Egypt: measurements, micro- and mesoscale modelling

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  1. Wind Atlas for Egypt: measurements, micro- and mesoscale modelling Niels G. Mortensen, Jake Badger & J. Carsten Hansen Wind Energy Department Risø National Laboratory 2006 EWEC 1 March 2006

  2. Acknowledgements The ”Wind Atlas for Egypt” is the result of a team effort: • New and Renewable Energy Authority, Cairo • Laila Georgy Youssef (PM), Usama Said Said, Ashour Abd El-Salam Moussa, Mohammad Akmal Mahmoud • Egyptian Meteorological Authority, Cairo • Ahmed El Sayed Yousef (PM), Adel Mahmoud Awad, Mahmoud Abd-El Raheem Ahmed, Mohamed A.M. Sayed, Mohamed Hussein Korany, Metwally Abd-El Baky Tarad • Risø National Laboratory, Roskilde • Bo H. Jørgensen, Charlotte B. Hasager, Uwe S. Paulsen, Ole F. Hansen, Karen Enevoldsen • Funding provided by NREA, EMA and Danida • Support provided by NREA, EMA and Risø staff

  3. Wind Atlas for Egypt overview • Meteorological measurements • Design and installation of 22 met. stations • Site selection, O&M and data analysis • Rehabilitation and recalibration of anemometers • Micro-scale modelling (WAsP) • Terrain descriptions for 30+ met. station sites • WAsP modelling of 30+ met. stations sites • Meso-scale modelling (KAMM) • NCEP/NCAR wind climatologies • Terrain descriptions for all of Egypt • KAMM modelling of Egypt and 4 regions • Verification – measurements and models • Compilation and publication of Wind Atlas for Egypt

  4. Meteorological mast in Zafarana 25-m lattice tower, concrete foundation Top-pole mounting to avoid flow distortion

  5. Hurghada Cup Anemometer Calibration Facility 10 anemometers being calibrated – reference anemometer in middle position:

  6. Microscale modelling • Analysis procedure  (WAsP) Observed Wind Climate + sheltering obstacles + roughness map (GE, SWBD) + elevation map (SRTM 3) • Regional Wind Climate • Application procedure  (WAsP) Regional Wind Climate + sheltering obstacles + roughness map + elevation map • Predicted Wind Climate + power and thrust curves • Predicted wind farm AEP

  7. Katamaya elevation map from SRTM 3 data 2020 km with 10-m contours 22 km with 1-m contours

  8. Alexandria roughness map from Google Earth SRTM Water BodyData coastline

  9. Egyptian regional wind climates • 30 met. stations • WAsP modelling • Graph shows RWC • Mean wind speedand power density 50 m a.g.l. • Flat, uniform terrain with z0 = 0.03 m • Output format: WAsP *.lib file • Weibull A and k • Standard heights • Standard z0

  10. Gulf of Suez regional wind climates • Graph shows RWC • Mean wind speedand power density 50 m a.g.l. • Flat, uniform terrain with z0 = 0.03 m

  11. Probably the best wind farm site in the world… Hub height 50 m: U > 11 ms-1 P > 1100 Wm-2 CF ~ 70% FLH ~ 6000 h 100’s of km2…

  12. Mesoscale modelling • KAMM modelling NCEP/NCAR reanalysis data + roughness map (GLCC) + elevation map (GTOPO30) • KAMM Predicted Wind Climate • Inverse application procedure KAMM Predicted Wind Climate + terrain descriptions • Regional Wind Climate • Application procedure  (WAsP) Regional Wind Climate + terrain descriptions • Predicted Wind Climate + power and thrust curves • Predicted wind farm AEP

  13. New wind resource map of Egypt • Map shows PWC • KAMM modelling • Resolution 7.5 km • Mean wind speed50 m a.g.l. [ms-1] • NCEP/NCAR data • GTOPO30 elevation • GLCC land cover • Terrain features may give higher wind speeds locally! • Output formats: • map graphics • statistics

  14. …and Egyptian offshore wind resources • Map shows PWC • KAMM modelling • Resolution 7.5 km • Mean wind speed50 m a.g.l. [ms-1]

  15. Regional wind climate • Map shows RWC • Wind climate over flat, uniform terrain • KAMM modelling • Resolution 7.5 km • Mean wind speed50 m a.g.l. [ms-1] • Database of RWC’s • Output format: WAsP *.lib file • Weibull A and k • Standard heights • Standard z0’s

  16. Verification: Western Desert

  17. Verification – Gulf of Suez

  18. Verification – summary

  19. Wind Farm Planning Bird Migration Atlas Wind Atlas for Egypt §§ Legislation Maps & other data EIA GUIDELINES APPROVALS Master plans

  20. The future… • Numerical wind atlas (KAMM/WAsP) • Long-term data (1968-95) – infrequent updating ok • Observational wind atlas • Some reference met. stations should continue • New measurement programmes may be initiated • Cup anemometers must be rehabilitated and recalibrated • Databases can be updated and extended • Wind Atlas for Egypt can be updated • Conclusions • wind ressource assessment, siting and wind farm planning can now be done within hours anywhere in Egypt • present approach to wind resource assessment and siting in Egypt may be continued for several years

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