Vestas expects to have the V150 turbines halted as a precaution following a collapse in Sweden back up and running by the middle of this year.

The wind OEM said it will soon start work on around 150 machines taken out of service after the incident involving a V150 4.2MW model.

A Vestas spokesman said: “Following the identification of the root cause, the work at the affected sites to get the paused turbines up and running again will soon commence and turbines start returning to operation.

“We’re handling each customer and site individually and are in the process of defining exactly when the turbines will be operational again, and we expect the paused turbines to be safely operating during the first half of 2021.”

The turbines were halted “in an abundance of caution” after an investigation into the V150 4.2MW collapse at the Aldermyrberget wind farm found a bonding failure on blade-root inserts due to a manufacturing issue at a single supplier.

The machines were potentially exposed to the same issue, which caused a loose blade to destabilise the Swedish turbine and collapse.

Work to get the turbines operational could potentially face “minor delays” over specific issues, in which case Vestas said it will liaise with its customers.

The V150 has been a huge commercial success for Vestas over the last few years, with thousands of the turbines ordered for deployment in markets around the world as developers move to more powerful machines. The OEM had booked more than 10GW of orders for the V150 4.2MW by mid-2020.

Wind

Vestas sees first-half return for V150 wind turbines halted after collapse