A wind turbine blade outside Wichita, Kansas was recently punctured by lightning. The puncture hole does not appear to be significant on the outside of the blade but unseen structural damage could lie underneath. As seen in the photo below, the blade does not appear to have any lightning protection. In the heartland of the United States, lightning is very common. There’s evidence to suggest that wind turbines can actually cause lightning (that ultimately damages the blades of that turbine or other turbines in the same wind farm operation).
Update: Read about lightning damage to blades in Iowa in 2020
We discuss “up lightning,” streamers and various types of leaders in our Uptime podcast; tune in if you want to learn more. Even if the blade isn’t visually damaged, research continues to show that even very small strikes that don’t leave easily detected holes or burned areas can significantly impact the blade’s performance and longevity – and leave it more likely to be struck again.
The bottom line: Lightning protection for turbine blades is a necessity if you don’t want to end up with a wind turbine blade punctured by lightning.
If you are installing or repairing wind turbines, consider using WXGuard segmented lightning diverters to protect your blade from lightning damage.
2021 Update: Maintenance Tips to Prevent Lightning Damage to Wind Turbines
StrikeTape requires no modification to the blade. Installation takes 30 minutes (or less) per blade, and lab tests have proven its rain erosion is unparalleled.
To learn more about StrikeTape, see our FAQs, download the product specifications, or schedule a consultation to discuss improving the lightning protection of your wind turbine operation. UPDATE: Are you looking for Shine Wire for wind turbines? You’re in the right place!
