Sweden

Sweden

Vestas halts 150 turbines following blade investigation - updated

Vestas aims to get 150 of its V150 turbines up and running again by the middle of the year after pausing operations earlier this month

Vestas investigated after a V150-4.2MW collapsed in Seden last year (pic: Frank Boutrup Schmidt/Vestas)
Vestas investigated after a V150-4.2MW collapsed in Seden last year (pic: Frank Boutrup Schmidt/Vestas)

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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. 

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’ turbine blades collapsed at the 72MW Aldermyrberget Aldermyrberget (72MW) OnshoreSkellefteå, Västerbotten County, Sweden, Europe Click to see full details wind farm in Västerbotten 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 “extraordinary precaution” it was taking down around 150 of its V150 wind turbines with the same blade configuration as the turbine that collapsed at Aldermyrberget. 

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’ 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 Åmot-Lingbo and Tönsen (Valhalla) Åmot-Lingbo and Tönsen (Valhalla) (365MW) OnshoreBollnäs and Ockelbo, Gävleborg County, Sweden, Europe Click to see full details, 336MW Dundonnell Dundonnell (336MW) OnshoreVictoria, Australia, Asia-Pacific Click to see full details or Timber Road wind farms.

Vestas has not made public the cost of repairs and replacement of the V150 blades.

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