Reducing uncertainty in wind insurance claims through root cause insight

By Andrei Buliga, Digital Blades Project Director at RES, supporting Bladena

When a turbine blade fails, insurers face uncertainty: Who is responsible, is it an isolated incident, and what is the risk of it happening again? Early information is often limited, conflicting, or biased, leaving insurers without a clear, objective basis for decision-making.

At the same time, there is pressure to act quickly. Claims need to be resolved, liability determined, and repair decisions made, often before the full technical picture is understood. When conclusions are based on incomplete or biased information, the risk of misallocation, repeated failures, and increased long-term costs is high.

Independent wind turbine blade Root Cause Analysis (RCA) helps address this challenge by bringing structure and clarity to complex technical failures. Bladena’s RCA service for wind turbines goes beyond visible damage to uncover why a blade failed, rather than just describing the outcome.

Wind turbine blade failures are rarely driven by a single factor. Design characteristics, manufacturing conditions, transport stresses and operational loading often interact over time in ways that are not immediately visible. Blade failure analysis must therefore consider these factors together. Surface damage alone does not explain the underlying cause.

RCA reconstructs the sequence of events leading to failure using advanced blade assessment tools, specialist structural modelling and simulation. This enables a clear distinction between failure origins and symptoms, giving insurers confidence in blade failure insurance claim decisions.

Rather than stopping at symptoms, Bladena focuses on what drives risk. By understanding how a blade behaves in operation, we clarify cause, responsibility, and whether a failure is an isolated event or a wider fleet risk. 

With RCA and specialist structural analysis, insurers can: 

• establish a clear, unbiased understanding of what happened 
• assess liability based on objective technical evidence 
• validate whether proposed repairs address the true underlying cause 
• evaluate the risk of recurrence across similar assets 
• support claims decisions with transparent, defensible documentation

This is particularly important in multi-party claims, where differing perspectives and financial interests can complicate resolution.

Beyond claims handling, root cause insight also supports better decisions across the insurance lifecycle. Understanding failure patterns and structural sensitivities improves blade structural failure analysis, risk assessment and underwriting. Blade design flaw analysis and wind turbine blade damage assessment help ensure corrective actions reduce the likelihood of future losses.

Where conventional approaches often focus on visible damage and standard repair, Bladena’s RCA focuses on how blades actually respond to operational loads, ensuring the true failure origin is identified rather than only explaining the visible outcome.

As part of RES, this expertise is strengthened by real-world operational experience across a global portfolio, combining structural insight with practical understanding of turbine behaviour in the field. For insurers, this results in clearer decisions, stronger negotiation positions and reduced exposure to repeat losses.

Independent blade structural failure analysis ultimately turns complex blade failures into structured, evidence-based insight, enabling confident liability allocation, effective repair strategies and improved long-term risk management.

Turn uncertainty into clarity.

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• Category: Blog