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ATENEA

This tool allows to obtain AEP (Annual Energy Production) and AEP losses depending on the blade erosion progression due to rain and the wind turbine operational conditions. Moreover, the estimation of differentiated erosion for each blade section can be analyzed.

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ATENEA main results chart
ATENEA comparative chart
ATENEA performance chart

Presentation

ATENEA combines the aeroelastic tool OpenFAST with an airfoil performance model (APM) developed with machine learning to obtain AEP depending on the blade erosion progression due to rain and the wind turbine operational conditions.

This tool has been developed by CENER in T4.4 of the AIRE project.

Capabilities

AEP Over Years

Analyze Annual Energy Production of a wind turbine over different years based on a specific meteo series.

AEP Losses

Calculate AEP losses with respect to the first year of the provided meteo series.

Erosion Evolution

Evolution estimation of differentiated erosion for each blade section depending on the WT’s operation (controller-dependent).

Erosion Status Categories

Classification according to the IEA-Task46 erosion status categories (differentiated for blades and power).

CpCt Curves

Generate and analyze Power Coefficient (Cp) and Thrust Coefficient (Ct) curves.

Power Curves

Extract and evaluate comprehensive power curves under degraded states.

Hypotheses & Assumptions

  • Blades starting point is clean state.
  • The airfoil geometry whose erosion is simulated is the one with the most similar polar curve from APM database.
  • To optimize calculations, we maintained the RPM and AoA obtained from the clean configuration.
  • ATENEA only considers the constant erosion region over the airfoils.
  • The erosion zone includes the leading edge.
  • Same damage is applied on all three blades.
  • Maximum impact speed.
  • The blades erode once a year.
  • To compensate for conservative assumptions, damage incubation parameters adjusted.
  • Non-configurable material properties.

How to Use

Documentation on installation and usage of the ATENEA tool.

Read User Manual

OpenFAST models and other references

Useful technical resources related to OpenFAST models, documentation, controller setup, and erosion classification references.

Legal Information

Please review the license and legal conditions for the use of ATENEA.

View license

Get ATENEA

Start analyzing the impact of erosion on wind turbine energy production.

Download for Windows - Python 3.14

Contact

Please contact us eolica@cener.com if you are looking for new Atenea functionalities, new OpenFAST models, or innovative materials you would like to incorporate into your projects. Our team will be delighted to support you with tailored solutions and expert services.