Sandia National Laboratories Wind Program Project Posters

August 26, 2014

7:00 am – 8:00 am

Continental Breakfast, Check-in, and Registration

8:00 am – 9:30 am

Welcome and Opening Remarks
Setting the Stage for the Policies and Research Leading to the Next Generation of Rotor Blade Technology

Speaker Welcome: D. Todd Griffith, Workshop Chairmain, Sandia National Laboratories

US DOE Wind Energy R&D Update: Jose Zayas, DOE/ EERE Wind and Water Power Technologies Office

Keynote Speaker: U.S. Senator Jeff Bingaman, New Mexico (retired)

Blade Market and Technology Trends Update: Aaron Barr, MAKE Consulting

10:00 am – 12:00 pm

Turbine and Blade Manufacturers
Recent Accomplishments and Future R&D Needs: The Manufacturer’s Perspective

Siemens Update and Perspective on Rotors: Kevin Standish, Siemens Windpower

General Electric Update and Perspective on Rotors: Steve Johnson, General Electric

LM Blades & Leading Edge Erosion Protection: Michael D. Haag,  LM Windpower

AMI (Advanced Manufacturing Initiative) Final Report: Stephen Nolet, TPI Composites

Envision Rotor R&D: Kristian Godsk, Envision Energy

12:00 pm – 1:30 pm

Turbine and Blade Manufacturers Panel Discussion

1:30 pm – 3:00 pm

Developer, Owner, and Operator Perspectives
Gaining an Understanding of How Rotors are Performing in the Field: Operational Experiences and Insights

Field Trials of Vortex Generators: Ron Grife, EDP Renewables

Iberdrola Renewables Rotor Performance and Reliability: Nick Johansen & David Coffey, Iberdrola Renewables

Rotor Performance and Reliability at NextEra: Dan Brake, NextEra Energy Resources

3:00 pm – 3:30 pm

Refreshment Break

3:30 pm – 5:00 pm

Wind Plant Performance Research
From Research to Operation, What is the Recent Research in Improving the Performance and Reliability of Wind Farms of Today and Tomorrow?

  • US DOE Wind Plant Research Overview: Mike Robinson, DOE/EERE Wind and Water Power Technologies Office
  • Wind Plant Simulation Efforts at NREL: Matt Churchfield, National Renewable Energy Laboratory (Abstract)
  • Wind Plant Performance Research & Wakes Measurement at Texas Tech University: John Schroeder, Texas Tech University
  • Scaled Wind Farm Technology Facility Modeling: Fotis Sotiropoulos, University of Minnesota

6:00 pm

Reception hosted by BASF

August 27, 2014

7:00 am – 8:00 am

Continental Breakfast

8:00 am – 9:40 am

Manufacturing Trends

US Manufacturing Competitiveness – Blades: Patrick Fullenkamp, GLWN

BladeMaker Project: Christian Dörsch, Fraunhofer IWES

IEC 61400-5 Blade Design Standard Update: Dayton Griffin, DNV GL

 Modular Blade Design & Manufacturing: Kyle Wetzel, Wetzel Engineering

Blade Market and Technology Trends Update: Aaron Barr, MAKE Consulting

9:40 am – 10:10 am

Refreshment Break

10:10 am – 11:50 am

Blade Reliability: Operations & Maintenance

Reliability Trends: Matt Malkin, DNV GL

Digital Blade Maintenance Management: James Parle, Muir Data Systems

Ground Based Wind Turbine Blade Inspection System: John Lindberg, EPRI, & John Newman, Digital Wind Systems, Inc.

Results from WINDIE Experiment to Characterize Inspection Methods for Wind Blades and Use of Probability of Detection Studies to Quantify NDI Performance: Stephen Neidigk, Dennis Roach, Tom RiceSandia National Laboratories  (Abstract)

11:50 am – 1:10 pm


  • Sandia Renewable Energy Brief: Carol Adkins, Sandia National Laboratories

1:10 pm – 2:50 pm

Blade Reliability: Testing, Damage and Repair

Fatigue Test Methods for Rotor Blades: Tim Westphal, WMC

Blade Testing Trends: Michael Desmond, National Renewable Energy Laboratory

Blade Repair & Defects Database: Find Jensen, Bladena

Composite Materials & Damage Modeling: Bent Sørensen,Technical University of Denmark (DTU)

2:50 pm – 3:20 pm

Refreshment Break

3:20 pm – 5:00 pm

Materials Trends

Composites Testing Trends: David Miller, Montana State University

Advances in High Modulus Glass Fibers for Wind Turbine Blades: Tom DeMint,Owens Corning


Optimizing the Performance of Rotor Blades through Material Combinations: Sulivan Dias Borges Vianna, BASF

Carbon Fiber Composites in Wind Energy: Challenges and Solutions:  Chris Shennan, Hexcel

Track 2: Blade Research and Development

Aerodynamics, Aero-acoustics, Blade Design, and New Rotor Design Concepts: Emerging Blade Research Leading to Larger and More Cost-Effective Rotor Systems

8:00 am – 9:40 am

Blade Design

Aero-structural Blade Design: Carlo Bottasso, TU-Munich

Wakes & Rotors: The National Rotor Testbed: David Maniaci, Sandia National Laboratories

Hurricane-Resistant Rotor Design: Amool Raina, Wetzel Engineering

9:40 am – 10:10 am

Refreshment Break

10:10 am – 11:50 am

Blade Design (continued)

(UNABLE TO ATTEND) Thick Airfoil Development at ECN: Francesco Grasso, Energy Centre of the Netherlands (ECN)

An Update on the Sandia 100-meter Blade Project: D. Todd Griffith, Sandia National Laboratories

10MW Rotor Optimization: Fred Zahle, Technical University of Denmark (DTU)

Passive Aerodynamic Devices: Raphael de Rocca-Serra, Alstom

Hurricane-Resistant Rotor Design: Amool Raina, Wetzel Engineering

11:50 am – 1:10 pm


  • Sandia Renewable Energy Brief: Carol Adkins, Sandia National Laboratories

1:10 pm – 2:50 pm

Aerodynamics and Aero-Acoustics

Aeroacoustics and Blade-tip Research: Stefan Herr, General Electric

Leading Edge Erosion Research: Case Van Dam, University of California, Davis

Development of Testing Capability for Investigating Unsteady Aerodynamics of Wind Turbine Blades: Jonathan Naughton, University of Wyoming

2:50 pm – 3:20 pm

Refreshment Break

3:20 pm – 5:00 pm

New Design Concept Studies

Vertical Axis Wind Turbines, Aerodynamic Codes & Design: Carlos Simao-Ferreira,TU-Delft

Downwind Rotor Design: Eric Loth, University of Virginia

Technical University of Denmark Smart Rotor Research: Helge Madsen, Technical University of Denmark (DTU)

August 28, 2014

7:00 am – 8:00 am

Continental Breakfast

A2e Wind Plant Reliability Strategic Meeting

A follow-up on the planning of the A2e Reliability Thrust Area. Previous publications can be found here. This meeting is being organized by Carsten Westergaard and Jonathan Keller.

Welcome and Introduction
We encourage an open dialogue in the meeting and interactions during presentations.

  • Welcome and Workshop participants introduction: Dr. Carsten Westergaard, SNL
  • Atmosphere to Electrons (A2e) Initiative Overview: Dr. Jon Keller, NREL
  • Atmosphere to Electrons (A2e) Wind Plant Reliability, overview and status: Dr. Carsten Westergaard, SNL

10:00 am – 10:15 am – Break
10:15 am – 10:45 am – Prepared Presentations
We encourage an open dialogue in the meeting and interactions during presentations.

  • International collaboration opportunity for the A2e program: Dr. Xiao Chen, National Laboratory of Wind Turbine Blade Research & Development Center: Chinese Academy of Sciences
  • Prepreg for Large Wind Blades, Shubang Gan: Polymeric Composite Laboratory, Seattle
  • A Note on Site Specific Wind Conditions: Carsten Westergaard on behalf of Emil Moroz
  • Blade Reliability: Ron Grife, EDPR

10:45 am – 12:00 pm – Open Forum, Discussion and Conclusion

Feel free to bring a few slides or request a few minutes to give a statement.

National Rotor Testbed Project Review

Modern, open-source blade designs are planned to support future research campaigns at SWiFT. Researchers with relevant experience are cordially invited to review existing project work and to influence the final design. The blades will support validation to enable improved blade technology and improved understanding of turbine-turbine interaction. Blade aeroelastic behavior, near and far wake characteristics, and scaling relationships are topics of particular interest.
Please direct questions to the organizer, Brian Resor.
8:00 am – 8:15 am – A2e Overview
8:15 am – 9:45 am – Model validation approaches, wind tunnel and SWiFT test objectives, introduction to scaling metrics
9:450 am – 10:15 am – Break
10:15 am – 12:00 pm – Facilitated smaller group discussions on specific topics such as:

  • aero sensors,
  • wake measurements,
  • wind tunnel tests,
  • airfoils/Re number effects,
  • field testing challenges (uncontrolled inflow)

12:00 pm – 1:00 pm – Lunch
1:00 pm – 1:30 pm – Recap morning session and Introduction to the National Rotor Testbed
1:30 pm – 3:00 pm – Discussion of NRT design approach—focusing on SWIFT scale design—Overview of:

  • proposed requirements and scaling metrics
  • subscale rotor design approach
  • characterization of airfoils at subscale Reynolds numbers

3:00 pm – 3:30 pm – Break
3:30 pm – 4:30 pm – Final small group discussions, collect/document summary thoughts, wrap-up, and closing

Blade Reliability Collaborative & Structural Health Monitoring Workshop

A review of the Blade Reliability Collaborative project which focuses on the manufacturing and operational causes of premature blade failure, including Effects of Defects, Non-Destructive Inspection, Leading Edge Erosion, and Blade Repair. The workshop will also include a discussion of Structural Health Monitoring of blades in operation.
Please direct questions to the meeting organizers, Joshua Paquette and D. Todd Griffith.

8:00 am – 8:30 am – Introduction and Overview of the Blade Reliability Collaborative and Structural Health Monitoring Projects at Sandia

8:30 am – 9:45 am – Non-Destructive Inspection of Wind Blade Composite Structures

  • Results of Initial Screening Experiment
  • Manufacturing Floor Inspection Survey
  • NDI Probability of Inspection Experiment
  • Field Inspection Methods Study

9:45 am – 10:15 am – Break

10:15 am – 12:00 pm – Effects of Defects

  • Experimental and Computational Study on Waves, Porosity, and Disbonds
  • Probabilistic Modeling of Flaws in Blades
  • Influence of Manufacturing Process Parameters on Flaw Development
  • Survey of Repair Methods and Future Research

12:00 pm – 1:00 pm – Lunch
1:00 pm – 3:00 pm – Structural Health Monitoring
This portion of the meeting will include presentations on SHM of the rotor including discussions on damage techniques, sensing approaches, key damage mechanisms, and economics of SHM systems. Presentations will be given by representatives from industry, universities, and national laboratories.

3:00 pm – 3:30 pm – Break

3:30 pm – 4:30 pm – Leading Edge Erosion

  • Data gathering from eroded blades
  • Wind Tunnel Testing of Simulated Erosion Specimens
  • CFD Model Development and Verification
  • Impacts on Energy Production

4:30 pm – 5:00 pm – Feedback

The 2014 Wind Turbine Blade Workshop will be held at the Albuquerque Marriott Pyramid North

5151 San Francisco Rd NE,
Albuquerque, NM 87109
Phone:(505) 821-3333

Please book your room here: