Wind turbines are on the frontline of the transition to renewable power, but their blades face prolonged stress and extreme conditions. Failures are inevitable.
Installed wind capacity is now more than 1,136GW globally, while wind turbines keep getting bigger – both onshore and offshore. Owners and operators need advanced tools to keep pace and avoid critical and costly failures.
Wind turbines are on the frontline of the transition to renewable power, but their blades face prolonged stress and extreme conditions. Failures are inevitable.
In October 2025, more than a dozen turbines were shut down at the 145MW Flyers Creek wind farm in New South Wales, Australia, after a blade snapped in two during a storm. It was reported that this followed initial damage to the blade in June.
In September 2025, all three blades of a turbine at the Pitheavlis site in Perth, Scotland, detached from the machine, an incident attributed to an engineering fault. The turbine had been in operation for only ten months and, thankfully, no one was injured.
Such incidents can have significant consequences for the project owner and for the industry as a whole. A 2024 event at the 800MW Vineyard Wind 1 offshore project in Massachusetts resulted in debris from broken blades washing up on Nantucket beach, prompting headlines that were subsequently used by the Trump administration to justify an assault on the sector. Incidents like these highlight how rapidly a small, manageable defect can escalate into a catastrophic failure if it isn’t identified early enough.
A major challenge for wind farm owners and operators, onshore and offshore, is that current approaches to blade condition monitoring make it hard to catch problems before they turn into critical failures. This can be costly. Repairing a minor defect caught early may cost as little as around $30,000 onshore. But if a crack progresses, costs can rise dramatically. In some cases they can reach about $500,000 when replacement blades are not available and a complex structural repair is required. Offshore, the same dynamic applies. A relatively simple repair of around $100,000 can escalate to $1m or more when damage progresses unchecked.
The wind industry needs to rethink its approach to blade condition monitoring.
