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Underwater noise is a big concern when installing offshore wind farms. For example, pile driving to secure offshore foundations transmits loud booms through the water and for many miles. The full impact of construction noise on marine life is yet unknown, but potentially dangerous to certain species of sea life. So what if it was possible to reduce offshore construction noise at its source?

https://www.windpowerengineering.com/business-news-projects/a-quieter-way-to-construct-offshore-turbine-foundations/

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A consortium including Siemens GamesaUniversal Foundation, Aalborg University, Fred. Olsen Windcarrier and Offshoreenergy.dk has been awarded 3.8m EUR by the Energy Technology Development and Demonstration Programme (EUDP) via the Danish Ministry of Energy, Utilities, and Climate. The partnership seeks to demonstrate how an industrialized suction-bucket concept can slash the installation costs of offshore wind foundations.

https://www.windpowerengineering.com/business-news-projects/wind-consortium-to-test-industrialized-suction-bucket-foundation-for-offshore-wind/

 

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Magellan Wind and Copenhagen Infrastructure Partners (CIP) have joined forces to embark upon an early-stage development portfolio of floating offshore wind projects off the California coast and other areas of the United States. Magellan will contribute knowledge of U.S. leasing, permitting, offtake, transmission, and interconnection, and CIP will provide project design, engineering, finance, construction, and operations.

https://www.windpowerengineering.com/projects/cip-magellan-wind-join-forces-to-develop-floating-offshore-wind-in-california/

 

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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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