CETO 6: the new 1 MW WEC design by Carnegie

 

Carnegie Wave Energy has announced plans to develop a new generation of their CETO devices. CETO 6 power rating is 1 MW. This is a significant step change compared to the present design. Another significant change is the inclusion of electric power generation within the buoyant actuator. Up to now, all CETO systems included a shore-based generator driven by high pressure water produced by the wave energy conversion (WEC) devices. It is assumed that the new PTO design significantly increases power conversion efficiency, reduces costs and allows a more flexible deployment.

Carnegie target is to deploy a 3 devices demonstration array in 2016 aiming at offering CETO 6 as their first commercial device.

This is potentially a very significant milestone for the WEC sector. A lot of work is going into optimization of WEC arrays in preparation for wave farms deployments. However, it is obvious that the WEC device power rating has a massive impact on the commercial viability of the wave farm. With the majority of WEC devices presently rated at few hundred kW, it is very expensive and quite impractical to install, operate and maintain a wave farm of a significant power output. I think only when developers will be talking of arrays of WEC devices each rated few MW that wave energy would start making a significant contribution to power generation. Until then, its role would be limited to possibly supporting islands and isolated coastal communities.

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Tenerife to install wave energy plants – Renewable Energy Magazine

 

Langlee Wave Power 132kW Robusto wave energy generator will be installed in the first phase. Langlee is indicating that further deployments are planned. Langlee Wave Power has also signed a similar agreement with the Lanzarote Island Council to install a 500kW pilot plant.

Robusto is a semi-submersible floating wave power converter measuring 30×50 metres. It is normally installed at sites of 40-100 meter water depth with four mooring lines to keep it in position.

The device is assembled onshore and then towed to site. Hence some components manufacturing and assembly will also be carried out at a site in the Canary Islands.

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Offshore wind in France?

Something seems to be moving in the French offshore wind sector

In their press release, the FEE – the French wind energy trade organization – indicates the somewhat ambitiously sounding objectives of 15 GW and 6GW of capacity installed for fixed and floating wind respectively by 2030.

References:

OTEC power plants to date – Map from NewScientist.com

The full article is here

German offshore power generation capacity expected to increase by 1.5 GW in 2014

A report issued by the offshore wind energy foundation on behalf of  the German Federal Ministry for the Environment indicates in about 1.5 Gigawatts the offshore power generation capacity expected to be commissioned in 2014. If confirmed, Germany would overtake both Belgium and Denmark to become the second country for installed offshore wind capacity after the UK.

The report also includes clear indications of ambitious development plans to 2020 and beyond.

References:

Alstom to launch floating turbine research centre | Windpower Offshore

Alstom invests in floating wind R&D showing they expect it to play a significant part in the offshore wind sector of the future

Alstom to launch floating turbine research centre | Windpower Offshore

Lockheed Martin partners with OPT to deliver Australian wave energy farm

  • Technology: PowerBuoy
  • Location: Victoria, Australia
  • Total peak power capacity: >60 MW

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