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WINDFARM FOUNDATION COMMERCIAL VIABILITY TESTING

Posted by Web Master 6 on April 24, 2018 9:20 AM EDT
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Next-generation wind turbine foundations are being viability tested by HR Wallingford at its Oxfordshire Fast Flow Facility prior to being deployed at the Borkum Riffgrund 2 offshore windfarm.

The research project, which is being carried out jointly with Ørsted, seeks to refine the design of the suction bucket foundation, as part of a research project investigating scour effects and the most suitable scour protection for the novel foundation structures.

http://www.maritimejournal.com/news101/marine-renewable-energy/windfarm-foundation-commercial-viability-testing

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Dutch offshore foundations manufacturer Sif and Japan-based East Winds Asia (EWA) have developed a method to transport and store offshore wind foundations in Asian harbors which is said to eliminate the need for additional infrastructural investments.

The method includes the foundations being transported on a semi-submersible ship, and once it arrives in a harbor, the cargo is unloaded and foundations are brought into the harbor on barges.

https://www.offshorewind.biz/2018/03/16/sif-and-ewa-tackle-foundation-logistics-challenge-in-asia/

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Innovative Inspection of Offshore Foundations

Posted by Charles Decuir on February 28, 2018 12:20 PM EST
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Using Interfering Sound Waves for Monopile Investigation

Offshore wind farm operators face a challenge when trying to establish the integrity of the monopile-transition piece interface which has been used in 80% of turbines constructed before 2012. A key focus is the layer of grout which bonds the two steel sections of the structure, the integrity of which could affect the turbine’s long-term stability. Uniper Technologies, working with a team from the British Geological Survey, has developed a system, the first of its kind, which uses interfering sound waves to investigate the monopile-transition piece underwater and highlight any areas of defective or missing grout. The system, which has been successfully trialled at sea, was a winner of the recent Subsea Inspection competition organised by the Carbon Trust’s Offshore Wind Accelerator. Importantly the technique can inspect the structure from a single surface and within the tight timescales required for offshore procedures. Inspection data is interpreted and shared in a transparent format.

https://www.windtech-international.com/editorial-features/innovative-inspection-of-offshore-foundations

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Aker Solutions Expands into Floating Offshore Wind

Posted by Web Master 6 on February 12, 2018 10:20 AM EST
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Aker Solutions has invested in floating wind power technology company Principle Power forming an alliance that expands its position in offshore oil and gas field engineering into the fast-growing renewable energy market.

Aker Solutions has an extensive track record in developing offshore oil and gas fields, with particular capabilities in floating facilities. The partnership will help bring Principle Power's technology - a floating foundation for offshore wind turbines, known as WindFloat - to a broader market, says Aker Solutions.

https://www.maritime-executive.com/article/aker-solutions-expands-into-floating-offshore-wind#gs.714XiTI

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Corrosion protection concept offers 30% cost saving

Posted by Web Master 6 on January 23, 2018 9:25 AM EST
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Experience to date on E.ON’s Arkona offshore windfarm project, the first use of a new corrosion protection concept, suggests that it is significantly less expensive than conventional techniques

As first highlighted in the 3rd Quarter 2017 issue of OWJ, the concept of using thermally sprayed aluminium to prevent corrosion is widely used in the offshore oil and gas industry but has only recently begun to be used in the offshore wind industry.

Corrosion protection and management of foundations for offshore wind turbines is a potentially costly undertaking in terms of initial capital outlay and in long-term maintenance. The current solution of paint and sacrificial anodes not only slows foundation construction time but has a limited lifetime that requires frequent inspection and maintenance activities. Anodes require additional secondary steelwork to be added to a foundation, and paint requires many days to dry, slowing production times and adding cost. The first application of thermally sprayed aluminium was on the Arkona offshore windfarm, for which the foundations have now been installed.

http://www.owjonline.com/news/view,corrosion-protec

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But it is not its height that makes this turbine special. It’s one of five emerging from the sea as part of Hywind Scotland – the world’s first floating windfarm.

“With floating wind, we’re trying to access deeper waters, particularly where there’s quite high wind speeds as wind is the fuel of the industry,” explains Rhodri James, a manager at the Carbon Trust.

http://www.imeche.org/news/news-article/feature-a-floating-future-for-wind

 

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Atkins designs on Triton Knoll

Posted by Web Master 6 on December 5, 2017 11:20 AM EST
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UK engineering consultancy Atkins is to design the monopile foundations for Innogy’s 860MW Triton Knoll offshore wind farm off the UK east coast.

Atkins has been subcontracted by the foundation supplier – a joint venture between Smulders and Sif – to design 90 monopiles for the MHI Vestas V164-9.5MW turbines and two structures for the offshore substations.

http://renews.biz/109404/atkins-designs-on-triton-knoll/

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New Concept for Offshore Wind Turbine Jackets

Posted by Jeff Keever on November 15, 2017 10:55 AM EST
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A new concept for a one-hundred-year minimum life concrete jacket foundation has been designed for offshore wind turbines.

Andy Filak, Principal of AMF Concepts, says that one of the major hurdles to the development of offshore wind farms has been the development of reliable foundation systems with long life and ease of installation in deepwater. Current concrete technology is not robust enough for the long-term exposure that is experienced in an ocean wind farm, he says, and steel technologies require complicated shoreside construction and at-sea installation involving multiple large crane barges and anchor handling tugs.   

https://maritime-executive.com/article/new-concept-for-offshore-wind-turbine-jackets

 

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