At Perceptual Robotics, we utilise cutting-edge research on Leading Edge Erosion (LEE) progression, harnessing an advanced aerodynamic model to estimate the effects of individual damages on turbine blades. 

This approach allows us to estimate the Annual Energy Production (AEP) loss and consequently, the associated revenue loss with much higher accuracy than traditional methods.

Simple estimates that rely solely on the severity of damage can significantly overestimate or underestimate true LE losses.

To derive sensible values, it’s crucial to consider: 

• The severity of the damage 
• The size of the damage 
• The location of each damaged region on the blade 

Aerodynamic analysis, which is the core of our methodology, addresses these factors comprehensively. This allows us to accurately calculate losses for an entire blade or even pinpoint losses associated with a specific region of damage. 

Our approach ensures that you have the precise information needed to prioritise repairs and optimise turbine performance. 

As an example for the LEE damage shown in the image, our estimations indicate that this damage alone, due to its severity, location, type, and size, will result in a yearly AEP loss of approximately 6.2% in our aerodynamic model. This particular damage is categorised as a level 5 and is about 3.6 meters long. Based on an average approach to incomes/production (customisable to reflect local pricing), this translates to an annual loss of about £4,300 (€5,117) in AEP. By turning the image of damage into actionable results, we can help prioritise repairs effectively.

The list of benefits for asset managers and owners/operators includes:

Improved Decision-Making

By understanding the precise impact of each damage on AEP loss, managers can prioritise repairs based on actual performance data rather than relying on generic severity estimates.

Enhanced Revenue Protection

By accurately estimating the AEP loss and associated revenue loss, asset managers can better understand the financial impact of turbine blade damage. This knowledge allows for more accurate budgeting and financial planning, helping to protect revenue streams. Additionally, precise calculations can support negotiations with insurance providers or warranty claims, ensuring that site managers receive appropriate compensation for damage-related losses.

Extended Turbine Lifespan

Effective prioritisation of repairs based on accurate damage assessments helps extend the lifespan of blades. By addressing critical damages promptly and efficiently, site managers can prevent minor issues from escalating into more severe problems that could lead to costly replacements or extensive downtime. This proactive maintenance approach contributes to the overall longevity and reliability of the wind farm.