September October 2021

The Front Cover

Lightning damage stubbornly remains a major O&M expense for owner-operators in cost and frequency. Damage such as blade skin punctures, shell delamination, split trailing edges, and (less frequently) catastrophic damage to wind turbine blades is costly to repair and causes undesirable downtime. Arctura has developed a wind turbine blade coating that reduces lightning damage to turbine blades by encouraging surface flashovers (see page 7). (cover image: courtesy NTS Lightning Technologies).

Publisher's Note

HUSUM Wind 2021: first European on-site trade fair since the pandemic began

Features

Wind Turbines and Computational Fluid Dynamics
By Jacob Krispin and Joel Balbien, Vorcat, USA

Future Super Large Rotor Blades
By Frank Seewald, Torsten Sadowski, Roland Stoer, WINDnovation Engineering Solutions, Germany

Moving Rotor Hubs
By Sabrina Deininger

Windtech Future

Are We Going in the Right Direction?
By Ahmad Hemami, McGill University, Montreal, Canada

View from Inside

Together We Must Act Faster!
By Stefan Gsänger, Secretary General, World Wind Energy Association

Latest News

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• Jeonnam 1 offshore wind project in South Korea achieves first power
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• Amazon invests in three wind energy projects in Greece
• 11 Boston and Cambridge institutions collaborate to invest in wind and solar power
• Caledonia Offshore Wind Farm submits application for offshore planning consent
• Allete Clean Energy secures new contracts for Armenia Mountain Wind
• NOV introduces the Quick Connector for heavy lift cranes
• HSM Offshore Energy rolls out Thor OHVS topside

 

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