The objective of this Annex/Task 2 is to develop recommended practices for testing and evaluating ocean energy systems and, in this way, to improve the comparability of experimental results. Activities include collecting and analysing information on testing facilities and testing procedures to develop standards for presentation of technical design and data, and for assessment of system performance.

The report, Development of Recommended Practices for Testing and Evaluating Ocean Energy Systems was published in 2003 under this Annex. This report provides an overview of testing facilities in IEAOES Contracting Party countries and guidelines for standards for testing preliminary cost assessment and presentation of results. The focus of this report was primarily tank testing of scale models.

In 2006 the Executive Committee of the OES-IA agreed to extend the Annex to address prototypes and the overall objective of the extended work program is to provide the necessary basis in order to present the performance of different Ocean Energy Systems in a comparable format. 

The extension of the work program of Annex II was launched in February 2007. The new work program has the following specific subtasks:

Subtask 2.1: Generic and site related Wave & Tidal Data

Subtask 2.1.1: Generic and site related Wave Data Four generic scatter diagrams that reflect typical wave conditions at different member states’ coast lines ranging from 10 kW/m to 50 kW/m will be compiled. Directionality and tidal range information as well as seabed conditions and distance from shore to 25 and 50-meter depth contour will be compiled. The goal is to enable comparison between the performance of different wave energy systems.

Task Leader: Portugal

Subtask 2.1.2: Generic and site related Marine Current Data 

Four generic diagrams that reflect typical tidal flow conditions at different member states’ coast lines ranging from 0,5 kW/m2 to 2 kW/ m2 will be compiled. Directionality and tidal range information as well as seabed conditions and distance from shore to 25 and 50-meter depth contour will be compiled. The goal is to enable comparison between different tidal energy systems performance.
Task Leader: Canada

Subtask 2.2: Development and Evaluation Protocol for Ocean Energy Systems 

The objective of the Protocol is to provide a document that in simple terms explains steps needed in the development of Ocean Energy Systems. The protocol aims at explaining in a common language the objective and expected outcome of each step for developers and supporting bodies. Criteria for moving from one step to the next will be explained and discussed.

Subtask 2.2.1 Development Protocol Wave
Task leader: Ireland

Subtask 2.2.2 Development Protocol Tidal
Task leader: UK

Subtask 2.3: Guidelines For Open Sea Testing And Evaluation Of Ocean Energy Systems

Subtask 2.3.1: Monitoring and data acquisition Wave & Tidal
Guidelines regarding monitoring and data acquisition of different types of Ocean energy systems will be compiled based on best practice and experience from the Ocean Energy community. Practical experience that can help future development will be listed. Typical instrumentation used and experience in handling will be provided. Grid connected prototypes and prototypes that dump the power at sea will be discussed and in each case the technical issues involved will be treated.
Task Leader: UK

Subtask 2.3.2 Data preparation and presentation of results Wave & Tidal
Guidelines regarding preparation of data and presentation of will be compiled based on best practice and experience from the Ocean Energy community. The guidelines will describe how the results from the test-site can be transformed to the generic ocean conditions of task 1.1 & 1.2.
Task Leader: Ireland

Subtask 2.3.3: Guidelines on Design, Safety and Installation procedures Wave & Tidal
Guidelines in the design of the Ocean energy system will be compiled based on best practice and experience from the Ocean Energy community. Practical experience that can help future development will be listed. Guidelines developed by DNV and Germanisher Lloyd can form the basis for this task.

Task Leader: UK  

Each participant has agreed to contribute 3000€ to the Annex II Extension. 

In 2006, the ExCo has approved the extension of this Annex for a three years period to develop practices for evaluating prototypes, being the draft work program approved at the November 2006 ExCo meeting. 

• Belgium
• United Kingdom
• Spain
• Portugal
• Norway
• Mexico
• Ireland
• Germany
• Denmark
• Canada
• United States of America

March 2006, Amsterdam, Netherlands
In 29 March 2006, the operating agent organized a Workshop in Amsterdam, Netherlands. This workshop was attended by 20 participants, among them technology developers, experts from universities developing activities on wave energy, and the New and Renewable Energy Centre (NaREC).

February 2007, London, UK
A kick-off meeting for the Annex II, hosted by the UK Department of Trade & Industry, DTI (currently known as Department for Business, Enterprise and Regulatory Reform, BERR), was held in London on February 21, 2007. The Work programme of Annex II was reviewed and the leaders of each subtask were selected.