by David Wojick
On July 26, CFACTโs President Craig Rucker sent Virginia Governor Glenn Youngkin a letter warning him about the serious risk of blade failure in the giant offshore wind facility being built off Virginia. The warning builds on the recent blade failure off of Nantucket, which has littered the beaches with fiberglass fragments. Virginia is also at risk.
In this article, I present some technical background on that risk. The Virginia offshore wind facility will be one of the worldโs biggest, with 176 enormous turbines. It is just getting started with pile driving, so no turbine blades have been installed to date. This is an opportune time to undertake caution.
The Nantucket turbines are made by GE, and they are the worldโs largest in operation today at 13 MW, each driven by three huge 107-meter-long blades. That is 351 feet for those of us who do not speak metric. The Virginia turbines will be even bigger at 14 MW with blades 108 meters (154+ feet) long. They are made by Siemens Gamesa, or SG for short.
The GE turbines and blades have been in production for going on two years, so have some operational experience. The SG turbines and blades just came into production so there is no experience with them. One could say they are being beta tested off Virginia.








