Case Studies

The Oyster is a buoyant, hinged flap which is attached to the seabed at depths of between 10 and 15 metres, around half a kilometre from the shore. It is essentially a wave-powered pump which pushes high pressure water to drive an onshore hydro-electric turbine. The movement of the flap drives two hydraulic pistons which push high pressure water onshore via a subsea pipeline to drive a conventional hydro-electric turbine.

In the future, subsea pipelines will connect multiple Oyster wave energy devices to a single onshore plant.  Ultimately Oyster will be installed in wave farms of several hundred connected devices generating hundreds of megawatts of electricity

Mojo was asked to conduct, identify and develop robust and cost effective methods for installing the Oyster 2 and the development of a detailed installation Project Execution Plan. This process was facilitated with Numerical Analysis including OrcaFlex modelling supported by tank testing and MatLab analysis.