Mocean WEC: Blue Horizon


Stage 3

Project Lead

Mocean Energy Ltd

Project Sub-Contractors

Blackfish Engineering Design Limited, Industrial Systems and Controls Ltd, Supply Design Ltd, AJS Design Engineering Ltd, Leask Marine Ltd, Aquatera Ltd, The European Marine Energy Centre Ltd, Orcades Marine Management Consultants Ltd, Oceaneering, MAESTRO Marine LLC, Budapest University of Technology and Economics

This project is current ongoing, and final public reporting is due to be published in Summer 2021. 

For further information on the current status, please contact the Lead Applicant.  


The project will complete the detailed design, build, and testing of a ½ scale sea-going prototype Mocean WEC.  The WEC comprises forward and aft hulls, patented wave channels, a PTO nacelle and power control subsystems in the forward hull.  It will be fabricated and assembled in Fife, then have its submergence and trim adjusted in the water by the addition of ballast, before being transported by road and ferry to Kirkwall in Orkney.

The test programme will be carried out in two stages.   The first stage will be performed in the milder weather of late spring and summer in the offshore nearby Kirkwall and will focus on the performance of the WEC.  The sea state will be measured with a wave buoy while the WEC response and its output power are continuously measured.  Several testing campaigns of deployment, test and recovery will be carried out, with maintenance and inspection between each.  In addition to the power performance of the WEC, the test programme will assess the behaviour and practicalities of the mooring system and the electrical connection.  The second stage of testing will see the WEC installed at an EMEC berth for late summer and autumn.  The greater exposure of the EMEC site, and the more energetic wave season will test the survivability of the WEC.  The WEC will be closely monitored and its response under severe and extreme waves will be scrutinised to evaluate and understand high risk conditions.

The long-term vision for the Mocean technology is to further develop the present concept of a 100kW WEC suitable for the commercial powering of islands and small communities.  With the technical and commercial experience and credibility gained from this first stage, we will commence the more ambitious development of a 1MW WEC suitable for deployment in grid-connected wave farms.

Project Keywords: NWEC, Attenuator, Gearbox, Operations & Maintenance, Scapa Flow, Testing, Performance