Jul 25 2013

Vertical Hinged Flap

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Oyster 800 (Commercially Installed)

  • Company: Aquamarine Power
  • General Description: The Oyster 800 is the second generation of surge converter devices from Aquamarine Power. Oyster 800 is comprised of a vertical hinged flap which oscillates in the horizontal wave motion near shore. The device uses a hydraulic system to pump pressurized water to shore where electricity is produced through a turbine. More than one device can be connected to produce more electrical output. The device is installed using a monopile base that is either drilled or pile-driven into the seabed.
  • Stage of Production: Full scale commercial device installed in European Marine Energy Centre in Orkney, Scotland.  
  • Water Depth: 13 m
  • Capacity: 800 kW at any time
  • Cost: Currently Unavailable
  • Protection Features: Currently Unavailable
  • Dimensions: 26 m wide, 13 m tall
  • Information collected from US Department of Energy’s Marine and Hydrokinetic Technology Database:  (US Department of Energy: Efficiency and Renewable Energy Program) and the Aquamarine Power Website. (Aquamarine Power).


(Maritime Journal 2011)

Video: [youtube]http://www.youtube.com/watch?v=c50_ula0oqI[/youtube]

(Aquamarine Power)



BioWAVE (Prototype and Planned Commercial)

  • Company: BioPower Systems
  • General Description: Bottom-mounted hinged device with buoyant floats that pitch with wave action. The device spans the full depth of the water column. The hydraulic system (O-Drive, created by BioPower Systems) turns this kinetic energy into electricity using fluid compression. Design based on biomimicry of the movement of buoyant ocean plants. Arc of the buoyant floats reaches 40 degrees.
  • Stage of Production: A 21-month grid connected testing period for the BioWAVE prototype is scheduled for 2013 in Port Fairy, Australia
  • Water Depth: Prototype-30 m, Planned Commercial Model-40 to 45 meters
  • Capacity: Prototype-250 kW, Planned Commercial Model-1 MW
  • Cost: Currently Unavailable (Pilot project in Australia will cost $15 million)
  • Protection Features: Floats can lie flat against the sea floor during damaging weather conditions.
  • Dimensions: Pilot-30 m tall steel structure
  • Information collected from the BioPower Systems website: http://www.biopowersystems.com/ (BioPower Systems).

Video: [vimeo]http://vimeo.com/60628356[/vimeo]


http://www.hydratelife.org/?p=414 (Hydrate Life)



Langlee Robusto (Planned Device)

  • Company: Langlee Wave Power
  • General Description: Floating structure that sits near the top of the water column with two steel “water wings” that stand partially submerged and swing with the motion of the waves. Magnet generators at the base of the steel wings generate electricity which is cabled onshore.
  • Stage of Production: Plans for first prototype patented
  • Water Depth: Currently Unavailable
  • Capacity: 100 kW
  • Cost: Currently Unavailable        
  • Protection Features: Currently Unavailable
  • Dimensions: Currently Unavailable
  • Information collected from Langlee Wave Power website (Langlee Wave Power)


(Langlee Wave Power)


SurgeWEC (Prototype)


  • Company: Resolute Marine Energy, Inc.               
  • General Description: Near-shore, bottom-mounted device with one hinged flap that sways with horizontal wave action.
  • Stage of Production: Prototype has been tested off of Jennette’s Pier in Nags Head, NC and off of the Army Corps of Engineers Research Pier in Duck, NC.
  • Water Depth: 7.5 m
  • Capacity: 30 kW
  • Cost: Currently Unavailable
  • Protection Features: Currently Unavailable
  • Dimensions: Base- 3.8 m by 3.8 m, Flap- 2.3 m wide and 1.7 m tall

Information collected from Resolute Marine Energy Ltd. Website (Resolute Marine Energy Ltd.), this presentation from the Resolute Marine Energy Ltd. Directors (Staby, Ceberio and Rezza 2013) and a news article from Boston.com about the SurgeWEC (Brown 2012).


(Staby, Ceberio and Rezza 2013)


Wave Roller (Planned Prototype)

  • Company: AW Energy
  • General Description: A horizontal hinged panel is attached to a base anchored to the seabed. The panel sways with wave motion underneath the break of the waves. The large panels hold ballast tanks that can be filled with air during deployment, then filled with water when submerged. The Wave Roller is planned to be deployed .3-2 km from shore.
  • Stage of Production: Planning
  • Water Depth: 8-20 m
  • Capacity: 500 kW- 1000 kW with a 25-50% efficiency
  • Cost: Currently Unavailable
  • Protection Features:
  • Dimensions: Currently Unavailable
  • Information collected from the AW Energy Website (AW Energy). 

wave roller

(AW Energy)





1. US Department of Energy: Efficiency and Renewable Energy Program. n.d. Marine and Hydrokinetic Technology Database. Accessed July 21, 2013. http://www1.eere.energy.gov/water/hydrokinetic/GlobalProjectMap.aspx.

2. Aquamarine Power, n.d. Technology: How Oyster Wave Power Works. Accessed July 21, 2013. http://www.aquamarinepower.com/technology/how-oyster-wave-power-works/.

3. Maritime Journal. 2011. The quiet life of a seabed Oyster. November 15. Accessed July 23, 2013. http://www.maritimejournal.com/news101/marine-renewable-energy/the-quiet-life-of-a-seabed-oyster

4. BioPower Systems, n.d. Wave and Tidal Energy. Accessed July 21, 2013. http://www.biopowersystems.com/.

5. Hydrate Life. n.d. Clean Energy: BioPower Systems’ BioWAVE. Accessed July 21, 2013. http://www.hydratelife.org/?p=414.

6. Langlee Wave Power. n.d. Renewable Energy with the Wave Energy Converter. Accessed July 21, 2013. http://www.langleewavepower.com/langlee-technology.html.

7. Resolute Marine Energy Ltd. n.d. Accessed July 21, 2013. http://www.resolutemarine.com/.

8. Staby, William, Olivier Ceberio, and Pat Rezza. 2013. Developing a Shallow-Water Wave Energy Converter: GMREC. April 10. http://www.globalmarinerenewable.com/images/tech%20development-resolute%20marine%20energy-staby.pdf.

9. Brown, Joel. 2012. “Nature’s Power.” Boston.com. March 1. Accessed July 21, 2013. http://www.boston.com/news/local/massachusetts/articles/2012/03/01/resolute_marine_energys_newburyport_lab_develops_system_for_turning_ocean_waves_into_clean_power_source/?page=1.

10. AW Energy. n.d. Wave Roller: Plug Into Wave Energy. Accessed July 21, 2013. http://aw-energy.com/.

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