OES Task 10 WEC Modelling Verification and Validation

The International Energy Agency (IEA) Technology Collaboration Programme for Ocean Energy Systems (OES) has initiated a new task OES Task 10 with focus on Modelling, Verification and Validation of Wave Energy Converters (WECs).
OES Task 10, involves experts from 13 countries, initiated on the 31st EXCO in 20161 – with the objective to improve the confidence in the numerical tools used in design and prediction of power production from Wave Energy Converters. Lessons from similar validation/verification projects in offshore wind (OC3-OC5 conducted within IEA Wind Task 30) will be integrated into the approach by the OES Task 10 group.

The long-term goals of OES Task 10 are:
1. To assess the accuracy and establish confidence in the use of numerical WEC models
2. To determine a range of validity of existing computational modelling tools
3. To identify uncertainty related to simulation methodologies to:
 a. Reduce risk in technology development
 b. Improve WEC energy capture estimates
 c. Improve loading estimates
 d. Reduce uncertainty in LCOE models
4. Define future research and develop methods of verifying and validating the different types of numerical models required depending on the conditions:
 • Operational conditions significant wave height Hs<5 meters: Validation of energy production and power take-off (PTO) optimization
 • Survival conditions significant wave height Hs > 12 meters: Validation of structural and mooring system loads, and operation of the PTO and structural motion in extreme conditions