When the Warranty Expires: Repairing Damaged Wind Turbine Blades - - PowerPoint PPT Presentation

When the Warranty Expires:

Repairing Damaged Wind Turbine Blades

Malcolm Rosenow Global New Business Development Consultant

Types of Repairs Under Warranty

• Design issues

Structural Repairs

• Quality issues
• Infusion quality
• Poor bonding quality

Manufacturing

• Minor transportation issues

Cosmetic

• Damage due to handling

Transportation Damage

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Estimated Number of Wind Turbines Off-Warranty

U.S. to Install 40,000 New Wind Turbines by 2015 Posted Jan 10th on www.offshorewind.biz

• Estimates for the number of turbines
• ff-warranty based on a 2 year

warranty from installation year

• Source: Data from AWEA &

U.S. Department of Energy 3

1.0 1.5 2.0 2.5 3.0 5,000 10,000 15,000 20,000 25,000 30,000 2004 2006 2008 2010 2012 2014 Average Size of Turbine (MW) Number of Installed Turbines YEAR Number of U.S. Turbine Installations Estimated Number of Turbines Off-Warranty Average MW Turbine Size

Off-Warranty Repair Market

• There were more wind turbines coming out of

warranty in 2010 than are being installed

• Wind turbines installed in 2007 & 2008 are reaching

the end of their two-year warranty period

• The size of the Wind Turbines creates unique

material & repair challenges for on-site repairs

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Typical Operating Damage

• Lightning strikes
• Ice
• Thermal Cycling
• Leading edge erosion
• Trailing edge erosion
• Fatigue
• Moisture intrusion
• Foreign object impacts - BULLETS

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Malcolm Rosenow Global New Business Development Consultant

(803) 335-3580 mrosenow@atlanticbb.net

Global Expertise in Delivering Mission-Critical New Business