Task 13: Tidal Energy Modelling Verification and Validation

Start date: 2018
End date: Permanent

As tidal energy is getting prominent as a clean energy source, every country strives to identify the tidal resource potential of their regional waters. There are many modelling tools developed during recent years for ORE resource representation at a macro level. For instance, International Renewable Energy Agency (IRENA) has published global atlas for renewable energy to promote renewable energy by increasing awareness of renewable energy potentials and resources available worldwide.

In similar lines, each country plans to predict its tidal energy resource potential to explore and exploit these clean energy resource. However, there is still lack of common understanding in such predictions to achieve detailed assessment of tidal renewable energy resources at a macro and micro level of a specific site. Moreover, such information about the energy potential and the practical extractable energy are important facts towards major decision making towards sustainable energy harvesting.

Presently assessments are made using computational modelling for micro site assessment, however there is a lack of consensus among modelling community in the type of modelling assumptions, types of software and incoming data requirements. This results in lack of credibility of the final resource information predicted from the computational models.

An effort is required from a common body such as OES, to provide useful guidelines for tidal resource mapping through identifying the present practices and to further compare and contrast the various computational tools for resource mapping to identify the correct approach. 

The objectives of this work is to:

  • Survey numerical modelling approach used in tidal-current based energy projects
  • Verification and validation of modelling tools & methodology against specific case studies

Such code to code comparison and detailed methodology studies is expected to provide:

  • New set of guidelines, standards which will mitigate uncertainties and confusions involved in modelling ocean renewable energy systems.
  • Validated numerical methods and standardization of energy yield estimation
  • Reducing risk in project planning and execution of tidal array farms
  • Improved tidal energy yield estimate
  • Incorporating tidal turbine performance data in the energy yield estimate for more accurate feasibility studies in earlier project stages
  • Recommendation of further improvement areas required for the suggested numerical models
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Task 1: Identify and access the numerical codes for benchmarking. This will be the detailed planning stage
Task 2: Unify different modelling standards and methodologies
Task 3: Standardise the practical energy yield estimation
Task 4: Define recommended numerical approach and methodology
Task 5: Validation and verification of recommended numerical models and practices

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Regular details are uploaded at the OES TIDAL ENERGY MODELLING GROUP PLATFORM