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Repairs reduce P.E.I. wind farm production; Small cracks were found in the 5 blade bearings  

Credit:  By Gail Harding, CBC News | Posted: Aug 03, 2016 | www.cbc.ca ~~

Maintenance work has decreased production at the wind farm in Hermanville, P.E.I.

Heather MacLeod, manager of energy assets for Prince Edward Island Energy Corporation, said small cracks were found in five blade bearings.

The blade bearing is an eight foot ring that turns and connects the blade itself to the hub of the turbine.

“So we have ten turbines at the Hermanville wind farm. Each turbine has three blade bearings for each of the three blades. So in total, there are 30 blade bearings,” said MacLeod.

“Over the course of the summer the blades have been taken down in order to replace the blade bearings. So cranes were on site and removed the blade, replaced the bearing, and then replaced the blade.”

MacLeod said this is the perfect time of year to do the repair work as well as other maintenance to the turbines, adding all the work is being done under warranty.

She added there are 96 big bolts holding a turbine on. Cracks would be in just one or two of these bolts, so there was never any concern about blades coming off.

Source:  By Gail Harding, CBC News | Posted: Aug 03, 2016 | www.cbc.ca

This article is the work of the source indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.

The copyright of this article resides with the author or publisher indicated. As part of its noncommercial effort to present the environmental, social, scientific, and economic issues of large-scale wind power development to a global audience seeking such information, National Wind Watch endeavors to observe “fair use” as provided for in section 107 of U.S. Copyright Law and similar “fair dealing” provisions of the copyright laws of other nations. Send requests to excerpt, general inquiries, and comments via e-mail.

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