The Oyster Wave Energy Converter from Aquamarine Power

Oyster Wave Energy Converter – AquaMarine Power commenced operational testing of their 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.

The company plans to install their next-generation Oyster 801 next to Oyster 800.  The two machines will be connected to the same onshore hydroelectric power station and will be  the first step in showing how a wave farm of multiple Oysters will operate.

Milestones

  • Seabed berth – Secured seabed berth at EMEC for three Oyster devices, 2010
  • Environmental monitoring – Monitoring of wildlife began April 2010; ongoing
  • Fabrication of Oyster 800 commences – Scottish manufacturer BiFab begin fabrication, December 2010
  • Onshore planning permission – Granted for three devices by Orkney Islands Council, September 2010
  • Offshore consents – Granted for first of three Oyster devices by Marine Scotland, December 2010
  • Onshore construction work – In progress since October 2010 by local company Heddle Construction
  • Directional drilling – Completed by Stockton Drilling, May 2011
  • Environmental impact assessment – Completed by Xodus Environment, June 2011
  • Application for further offshore consents – Submitted to Marine Scotland, June 2011
  • Fabrication of Oyster 800 complete – Unveiled by Scotland’s First Minister July 2011
  • Offshore installation – Completed August 2011
  • Connection of offshore device to onshore plant – In progress since September 2011
  • Offshore consents – Granted for further two Oyster devices by Marine Scotland, February 2012

Design improvements

Aquamarine Power’s 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.

The company says that they 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.

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