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Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
Time Matters Webinar Slides
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Time Matters Webinar Slides

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AWS Truepower's windNavigator staff provide insight on how highly accurate modeled wind resource data can speed up preconstruction activities while significantly reducing development costs.

AWS Truepower's windNavigator staff provide insight on how highly accurate modeled wind resource data can speed up preconstruction activities while significantly reducing development costs.

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  • 1. ALBANY • BARCELONA • BANGALORE August 2010 TIME MATTERS USING WINDNAVIGATOR REPORTS AND VIRTUAL METEOROLOGICAL MASTS TO EXPEDITE THE DEVELOPMENT PROCESS FOR SMALL AND DISTRIBUTED GENERATION PROJECTS AMBER TRENDELL DIRECTOR OF SALES AND MARKETING BRYON PHELPS PRODUCT COORDINATOR JOHNATHAN SCOFIELD TECHNICAL SALES REP 463 NEW KARNER ROAD | ALBANY, NY 12205 | awstruepower.com | info@awstruepower.com
  • 2. Outline • Typical Wind Resource Assessment – Timeline & Cost • Understanding the Resource – Important Guidelines and Characteristics • Modeling Limitations – Where does uncertainty come from? – How do AWS Truepower’s models perform? • windNavigator Solutions – R Reports and Vi t l M t t d Virtual Meteorological M t (VMM ) l i l Masts (VMMs) – Which solution is right for you? – AWST Experiences ©2010 AWS Truepower, LLC
  • 3. Typical Wind Resource Assessment: Timeline & Cost ©2010 AWS Truepower, LLC
  • 4. Total Time: Minimum of 1 YEAR Wind Study TOTAL Monthly TIME: Data g including: Tower 1 Year Tower Checks, MCP Siting Installation Validation, Analysis & EST TOTAL Memo and Energy COST: Reporting Analysis ~$60k ©2010 AWS Truepower, LLC
  • 5. Understanding the Resource: Important Guidelines and Characteristics ©2010 AWS Truepower, LLC
  • 6. Need to know the supply’s “quality” before predicting the power extracted by a wind turbine: Speed vs. Distribution ©2010 AWS Truepower, LLC
  • 7. Must characterize wind speed and direction VS. VS ©2010 AWS Truepower, LLC
  • 8. Must characterize wind speed and direction and temperature too… H Temperature C ©2010 AWS Truepower, LLC
  • 9. Power of the wind is function of cube of wind speed so… Doubling the speed = 8 times the available power • Speeds usually blow within the ramp portion of a turbine’s power curve • Modest errors in speed can equal p q large errors in power prediction ©2010 AWS Truepower, LLC
  • 10. Modeling Limitations: Where does uncertainty come from? ©2010 AWS Truepower, LLC
  • 11. Model Type: different models consider different assumptions Mesoscale M l Microscale Mi l Full equations of motion Mass-conserving Mass conserving Dynamic Adjusts for local Terrain Considers 366 days from 15 yrs Adjusts for local Roughness 2.5 km resolution 200 m resolution ©2010 AWS Truepower, LLC
  • 12. Resolution: Drives uncertainty associated with terrain complexity and power output 200 m Resolution 2 km Resolution 10 km Resolution ©2010 AWS Truepower, LLC
  • 13. Modeling Limitations: How do AWST’s models perform? AWST s ©2010 AWS Truepower, LLC
  • 14. windNavigator - Accuracy Map-Based Energy Estimates: How Accurately Can Wind Plant Performance Be Estimated Without On-Site Wind Measurements? Comparison of map-based energy estimations with public info about existing wind plants – Standard error of 10.5% and mean bias of -3.8% found for 148 plant-years w/ data from 41 wind projects – Bias mainly due to underestimation in Northeast a d West as a y u de est at o o t east and est Conclusions: 1. Map based assessments using public data, AWS Truepower’s wind maps and modeled data sets provides a relatively high degree of confidence and statistical repeatability 2. 2 Can provide quick and economical production estimates ©2010 AWS Truepower, LLC
  • 15. windNavigator - Accuracy Quantification and Applications of Wind Flow Modeling Uncertainty • Obtain quantitative estimates of the wind flow modeling uncertainty across a range of site conditions • Develop and validate a general framework for describing the spatial variation of wind flow modeling uncertainty Conclusions: 1. Spatial variation in the wind flow modeling uncertainty is an important factor to consider in designing wind projects 2. Topographic similarity – if extended to encompass land surface conditions as well as terrain – is a useful concept for understanding the spatial variation of wind flow modeling uncertainty p g y ©2010 AWS Truepower, LLC
  • 16. windNavigator Solutions: Reports and Virtual Met Masts (VMM) ©2010 AWS Truepower, LLC
  • 17. VMMs: Time Saving replacement for traditional campaigns ©2010 AWS Truepower, LLC
  • 18. Reports: Providing Model Assumptions & Site Characteristics ©2010 AWS Truepower, LLC
  • 19. Reports: Providing Model Assumptions & Site Characteristics ©2010 AWS Truepower, LLC
  • 20. Reports: Comparing Potential Turbine Models ©2010 AWS Truepower, LLC
  • 21. Reports: Setting the appropriate expectations with clients ©2010 AWS Truepower, LLC
  • 22. windNavigator Solutions: Which solution is right for you? ©2010 AWS Truepower, LLC
  • 23. Guidelines for choosing the right product for you: 1. Identify Site Characteristics – What is the terrain y complexity and land cover for your area of interest 2. Identify Energy Prediction Resolution – Focus on annual/seasonal trends or detailed monthly output 3. Identify How Many Turbines you’re interested in y y y comparing 4. Identify requirements for funding ©2010 AWS Truepower, LLC
  • 24. Comparing the Costs Solution Timeline List Price* Typical Wind Assessment campaign Minimum 1 Year $60k Site Surveyor Report 20 min – 24 hrs $750 Site Analyst Report 20 min – 24 hrs $2k Site Analyst Pro Report 20 min – 24 hrs $3k *Prices listed for Reports are without any subscription to windNavigator. ©2010 AWS Truepower, LLC
  • 25. ALBANY • BARCELONA • BANGALORE August 2010 QUESTIONS JOHNATHAN SCOFIELD TECHNICAL SALES REPRESENTATIVE 518-213-0044 EX 1086 EX. JSCOFIELD@AWSTRUEPOWER.COM 463 NEW KARNER ROAD | ALBANY, NY 12205 | awstruepower.com | info@awstruepower.com
  • 26. ©2010 AWS Truepower, LLC
  • 27. ©2010 AWS Truepower, LLC

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