Projects:  Oyster 800 project, Orkney

Oyster wave power

We commenced operational testing of our second-generation Oyster 800 wave energy machine in June 2012.  We also produced first electrical power to the grid the same month. The machine is installed at the European Marine Energy Centre in Orkney.

Oyster 800 has a maximum generating capacity of 800kW at any given time. The machine measures 26 metres across its width. The machine is installed at a depth of around 13 metres approximately 500 metres from the shore.

We plan to install our next-generation Oyster 801 next to Oyster 800.  The two machines will be connected to the same onshore hydroelectric power station.

This will be the first step in showing how a wave farm of multiple Oysters will operate.

Design improvements

Our second-generation Oyster 800 maintains the three key selling points of our first Oyster machine. These are the three S's - simplicity, survivability and shore-based electricity generation.

We have also been able to make significant design improvements through lessons learned from our first Oyster machine. This means that Oyster 800 offers a reduced cost of power achieved through increased power generation, a simplified marine installation process and easier routine maintenance.

Third party validation

Det Norske Veritas (DNV) awarded a Statement of Feasibility for the design of Oyster 800.  DNV is the world's leading international provider of services for managing risk. We are the first wave energy company in the world to have been awarded third party validation of a wave energy device.


  • Seabed berthSecured seabed berth at EMEC for three Oyster devices, 2010
  • Environmental monitoringMonitoring of wildlife began April 2010; ongoing
  • Fabrication of Oyster 800 commencesScottish manufacturer BiFab begin fabrication, December 2010
  • Onshore planning permissionGranted for three devices by Orkney Islands Council, September 2010
  • Offshore consentsGranted for first of three Oyster devices by Marine Scotland, December 2010
  • Onshore construction workIn progress since October 2010 by local company Heddle Construction
  • Directional drillingCompleted by Stockton Drilling, May 2011
  • Environmental impact assessmentCompleted by Xodus Environment, June 2011
  • Application for further offshore consentsSubmitted to Marine Scotland, June 2011
  • Fabrication of Oyster 800 completeUnveiled by Scotland's First Minister July 2011
  • Offshore installationCompleted August 2011
  • Connection of offshore device to onshore plantIn progress since September 2011
  • Offshore consentsGranted for further two Oyster devices by Marine Scotland, February 2012
Liz Foubister, Specialist, Marine Renewables
Xodus has provided environmental services to Aquamarine Power since 2005. It is pleasing to see Aquamarine Power’s commitment not only to working with local Orkney companies such as ourselves but also to the responsible development of their Oyster projects.
Liz Foubister, Specialist, Marine Renewables
Xodus Group, Stromness, Orkney
Derek Heddle, Managing Director
Heddle Construction is carrying out the onshore construction works for Aquamarine Power for a second time having also completed the works for their first Oyster project. We are pleased to see the company choosing to work with local companies and manufacturing their device in Scotland.
Derek Heddle, Managing Director
Heddle Construction, Kirkwall, Orkney