This story was first published on 15 January 2021. It was updated on 21 January to reflect new information received from Vestas.
Vestas has removed 150 turbines of its V150 turbines from operation following a collapsed turbine at a Swedish wind farm last year.聽
It aims to have the turbines operational again by the middle of the year, a spokesman confirmed.
"Minor delays may occur due to logistics, site specifics and turbine requirements and in this event, the affected customer will be duly informed," he added.
In November, one of Vestas鈥 turbine blades collapsed at the 71.4MW Aldermyrberget wind farm in V盲sterbotten County, which brought down the rest of the tower, nacelle and blades. No-one was injured, but in response the company launched an investigation into the cause of the blade's failure.
The company has now confirmed that the faults stemmed from a bonding failure on blade root inserts due to a contamination from a manufacturing process step at one of its suppliers.
In a press statement issued earlier this month the company said that as an 鈥渆xtraordinary precaution鈥 it was taking down around 150 of its V150 wind turbines with the same blade configuration as the turbine that collapsed at Aldermyrberget.聽
All other Vestas turbines with different blade configurations, including the V150 4MW platform are unaffected by this situation and are considered fully safe to operate, Vestas鈥 statement adds.
In response to WPM, the spokesperson added that the V150 fault was not connected in any way to blade faults at the 365MW 脜mot-Lingbo and T枚nsen (Valhalla) , 336MW Dundonnell or Timber Road wind farms.
Vestas has not made public the cost of repairs and replacement of the V150 blades.
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