Blade Operations And Maintenance Forum


Forum Day One - Wednesday 11 November 2015

Registration And Refreshments 


Chair's Opening Remarks 

Judah Moseson, Vice President – O&M And International Services, Cielo Wind   


Delving Into Market Dynamics: Blade Repair, Maintenance And Technology Trends

  • An overview of the current state of blade maintenance and varying programme options for asset owners
  • What are the implications of rotor scaling and 50+ meter blades on cost competitiveness and innovation in transport?
  • Analysing the effect of IRS PTC guidance on the blade production market outlook and fast track to the O&M phase
  • Closing the significant maintenance gap by developing strategies to overcome the ever-increasing volume of blades in the US wind sector and paralysis of the repair services community in meeting such demand

To join this session please contact Heather Smith at or on  +44(0)2082674785

Mitigating The Impact Of Lightning Damage And Leading Edge Erosion (LEE) On The LCOE


Material Development In Relation To Leading Edge Erosion Prevention And Protection

  • The effects of LEE on blade integrity and overall AEP - how do they wear down over time and what are the parameters likely to cause erosion?
  • Evaluating the current paint and foil options on the market 
  • Integrated solutions to avoid repairing the blade for structural damage
  • Advanced test strategies to support the development and validation of future leading edge erosion protection and repair systems

Santhosh Krishna Chandrabalan, Technical Business Development Leader, 3M


Networking Break And Morning Refreshments 


Retrofitting Lightning Protection Systems To Mitigate Damage And Improve Long-Term Rotor Blade Integrity

  • How to implement pro-active solutions by understanding the extent to which retrofitting can improve protection 
  • Evaluating the latest retrofit developments, whilst taking into account the requirements of other blade components
  • To what degree is data accumulation from the field helping to meet the forces of nature and reduce lightning damage ranging from de-lamination to spar separation?

Fabrizio Leone, Lead Specialist – Mechanical System And Blades Engineering, Vestas Americas


Defects And Damage Categories: When To Repair, Replace Or Partially Replace?

  • Methods to determine damage categories, with a focus on the classification of lightning damage
  • Examining the latest technology for conducting partial repairs to blades and determining in what circumstances this is the optimum solution
  • At what stage is it necessary to replace the blade as a result of lightning, environmental and leading edge damage?
  • Working with OEMs throughout this process and to resolve possible warranties 

Jeffrey Wehner, Vice President Of Operations, Renewables, Duke Energy


Debonding Of The Trailing Edge Joint: Investigating And Assessing The Latest Repair Methods

  • What are the methods for repairing edgewise vibrations in order to tackle trailing edge criticalities and material fatigue?
  • Identifying the driving failure mechanisms and understanding the linear fracture mechanics 
  • How to measure and predict the effect of wind turbine trailing-edge noise

Networking Lunch

Aerodynamic Performance Boosting Strategies And Post-Sale Upgrades For Increased AEP


Structural Enhancements To Improve AEP: Assessing Progress In Field Trials Of Vortex Generators

  • Analysing how vortex generators can be shown to prevent performance degradation through types of gain analysis
  • Sources of variation: when is it necessary to apply VGs along the entire length of the blade as opposed to just the root section?
  • What do trial results show in regards to the longevity of VG investment?

Ron Grife, Senior Manager – Turbine Performance And Reliability, EDPR



How Extensive Are The Benefits Of Structural Enhancers And Performance Add-Ons?

  • To what extent have structural enhancement technologies been proven to maximize AEP, strengthen blades and extend the effective life time?
  • Looking to the future: how can the industry improve aerodynamic attachments?
  • What are the most effective add-ons to protect and restore the rotor blade leading edge?
  • How do structural enhancers fare compared to the repair alternatives?

Odin Creel, Wind And Site Engineer, Suzlon
Ken Siddall, Director Of Service Technology, Siemens
Santhosh Krishna Chandrabalan, Technical Business Development Leader, 3M

Exclusive Developer And OEM Insights From Real-Time Project Case Studies 



Improving Blade Performance And Reliability Through Field Analysis Of Gamesa's Specific Blade Forms Currently In Service

  • Addressing four key challenges: budget, lack of integrated process, reliability and availability of new technology 
  • Bridging the gap between provider and customer – how to avoid disputes in warranty claims through greater collaboration 
  • An OEM perspective on the training provisions which should exist to reduce the likelihood of blade downtime

Philippe Delleville, Vice President Services, Gamesa


Networking Break And Afternoon Refreshments


Material Strategies For Reducing Loads In The Blade To Ensure Improved Integrity

  • How effective is the use of carbon in improving aeroelastic tailoring?
  • Successful implementation of carbon reinforcements in the root section of the blade 
  • Optimizing integrity and ensuring decreased wear and tear through a reduction in weights and loads
  • Drawing on the design of the Siemens SWT-2.3-120 turbine and assessing it’s operational service and maintenance benefits 

Ken Siddall, Director Of Service Technology, Siemens
Jeffrey Elberling, Team Lead – Composites, Siemens


Blade Pitch Angle Control For Aerodynamic Performance Optimization Of A Wind Farm

  • Predicting the effects of wakes, including velocity defects and increase in turbulent intensity, from upstream turbines to maximize the blade power output 
  • Understanding aerodynamic analysis and the Blade Element Momentum (BEM) theory
  • Applying these controls to the pitch angle on an operational wind farm and assessing the real-time results

Odin Creel, Senior Wind And Site Engineer, Suzlon



Adopting Blade Anti-Icing Systems In Cold Climates To Avoid Production Loss

  • The unique issues caused by ice on blades and understanding specific site assessment variations, to determine the effectiveness of anti-icing systems in terms of cold climate severity 
  • To what extent do these systems positively affect aerodynamic movements and provide a financially advantageous ROI
  • Practical and operational takeaways from using de-icing systems on blades affected by icing
  • The quantification of icing impacts and energy losses during turbine and blade operations, to actively avoid downtime

Panel Discussion: How Can We Ensure The Adequate Training Of Blade Technicians And What Competency Checks Are Currently In Place?

  • At what stage and after what specific training can a technician be defined as competent?
  • Working to ensure consistency and agreement on what training the industry should provide?
  • What effect does the effective training of technicians have on reducing the cost of repairs to blades?
  • Practical Insight – identifying the key areas in which technician’s feel training is most vitally required18

Panellist Include:
Darren Teetaert, Composite Tech III, Vestas-Canadian Wind Technology Inc


Chair's Closing Remarks


Close Of Forum Day 1 And Drinks Reception