Ocean Energy Systems

This website is sponsored by OES (Ocean Energy Systems); an intergovernmental collaboration between countries, which operates under framework established by the International Energy Agency (IEA).

The goals of this website is to store & present relevant information from ICOE conferences (documents, papers, presentations) and make it available in the future. Furthermore this website informs of upcoming ICOE conferences.

For more information about OES, click here >

What is ICOE? 

The International Conference on Ocean Energy (ICOE) is a global marine energy event focused on the industrial development of renewable marine energy. Held every two years, the goal of the conference and exhibition is to share recent experiences from research and demonstration efforts. It aims to accelerate development by stimulating collaboration networks between companies and research and development centres.

The event is delivered by a host organization supported by an international committee of leading ocean energy influencers.



The IEA Technology Collaboration Programme – Ocean Energy Systems (OES) - provides a “home” for past ICOE conference material. This ICOE website is hosted and maintained by the OES and all papers from previous conferences are available in the online library.


The OES also organizes a “poster award” during ICOE; a cash prize to 3 students selected by an international jury, composed by members of the OES. This award on behalf of the OES is intended to identify an early career individual expected to continue to make significant contributions in making industrial ocean energy a reality.

See previous award winners here


The Ocean Energy Systems Implementing Agreement (OES) is an intergovernmental collaboration between countries, which operates under framework established by the International Energy Agency in Paris.

The Ocean Energy Systems Implementing Agreement (OES) was launched in 2001. The need for technology cooperation was identified in response to increased activity in the development of ocean wave and tidal current energy in the latter part of the 1990’s and the beginning of this decade, primarily in Denmark, Portugal and the United Kingdom. These three countries were the inaugural signatories to the OES.

The OES brings together countries to advance research, development and demonstration of conversion technologies to harness energy from all forms of ocean renewable resources, such as tides, waves, currents, temperature gradient (ocean thermal energy conversion and submarine geothermal energy) and salinity gradient for electricity generation, as well as for other uses, such as desalination, through international cooperation and information exchange.

OES consists of 24 member countries. Each country is represented by contracting parties - who nominates participants in the OES Executive Committee. Participants in the OES are specialists from government departments, national energy agencies, research or scientific bodies and academia, nominated by the Contracting Parties.

More information about OES, its activities and members can be found on its website:

Copyright (2021) OES
VOI Communication