Tower bolt failure reported to have caused Vestas turbine collapse in Sweden

2015Published 15 Sept 2026Responsible editor: Chief Editor

Estimated damageEstimated by the register's adjusterHow? Know the real figure?

turbine out of service for about •• daysShown in the record →Full estimate

From the recordRoot cause Failed part The maker is named in 30 other entries (being named is not a finding of fault)

Where: Vestas wind turbine in Sweden
What: Turbine collapsed after tower bolt failure
Cause: Tower bolt failure reported

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Companies named in the reporting of this entry (being named is not a finding of fault): Vestas

What happened

A Vestas wind turbine in Sweden was reported to have collapsed in 2015 after failure of the tower bolts. The only available source is a headline, so the site, the capacity, any injuries and the wider consequences are not reported.

Contributing factors

The headline attributes the collapse to failure of the tower bolts. No further technical detail is available from the source.

Lessons learned

Tower bolt condition must form part of inspection programmes for onshore turbines.
A reported bolt failure on one unit should prompt checks on similar turbines until more detail is known.

More lessons on structural integrity and turbines, from every incident on the register.

Not yet known

Site location and turbine capacity
Any injuries or wider consequences
Full technical cause and turbine age

This entry is updated when these are reported. Get an alert for the next one like it.

Source

renewablesnow.com

Published 2026-09-15. Written from public reporting. Descriptive, not investigative. See the data accuracy disclaimer.

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Chart to reuse with this story: Wind (onshore) incidents in Sweden, by year, free with a credit (PNG).

The record behind this entry

The record behind EIR-0855 holds the manufacturer, the root cause and what failed as fields you can filter, count and export, with its source and their verification status. The cause is not hidden: the contributing factors above give it as the sources report it. The record adds it as a field. Companies are named in the roles the sources give them. Being named is not a finding of fault.

Manufacturer: ••••••••
Failed part: •••••••
Sources: ••••••••

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Wind (onshore) incidents in Sweden: 11 entries, with a free alert for the next one.

Wind turbine fires: the counts, the latest entries and a free alert for the next one. Also: wind turbine collapses.

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