Ramboll Prepares Detailed OSY Design for Tenders

A detailed design of the Offshore SwitchYard (OSY) platform for the Modular Offshore Grid project being developed by Belgian transmission system operator Elia will soon be open for construction tendering, Ramboll informed. 

Elia issued a call for tenders for the installation of the OSY platform in January and for its fabrication in May.

Ramboll’s detailed design package consists of multiple disciplines such as electrical, safety, topsides structure, and jacket design.

Once the package will be put out for tender, Ramboll will assist the client during the tendering phase, the company stated.

In December 2016, Elia awarded Ramboll the detailed design of an OSY platform to stepwise connect four planned offshore wind farms to the onshore grid connection point in Zeebrugge.

The wind farms won’t be constructed simultaneously, therefore the offshore grid will take on a modular concept that is flexible and allows a multiphase development. The whole setup is facilitated by an OSY substation that is able to receive power not only from one, but from multiple wind farms regardless of the time of construction. This will ensure fewer cables on the seabed and less costs in terms of construction and maintenance.

Ramboll performed detail design of all structural, mechanical, piping and electrical, instrument and telecom systems. The scope of work also included an optimisation study, an operation and maintenance study, and procurement. As basis for the detailed design, Ramboll defined philosophies and strategies for safety, and operation and maintenance as well as requirements for mechanical completion and commissioning.

The OSY platform will be situated up to 45 kilometres off Belgian North Sea coast, in water depths between 30 and 35 metres.

Elia’s board of directors approved the EUR 400 million MOG project in April 2017.

New offshore wind farms like Rentel, Northwester 2, Mermaid, and Seastar will be able to connect to MOG and feed wind energy directly into the Belgian grid, even when there is a loss or failure of one of the offshore cables.

Source: Test from Offshore Wind News

Vestas announces swathe of orders as Q2 ends


The biggest order was placed was for 80 V136-3.45MW turbines destined for a project in central Sweden. Turbines will be upgraded to 3.6MW each, meaning the project will have a capacity of 288MW.

The order was place by the AGP Goup and Vasa Vind for the Askalen project, near Ostersund. Vestas said it was the largest order to-date for the turbine model.

The order also includes a 20-year servicing arrangement from installation expected in Q3 2019.

On the same day in Sweden, Vestas announced a 115MW order for the V136 from local repeat customer Arise.

Arise is developing the Svartnas site for project owner BlackRock.


Elsewhere in Europe, Vestas has won a deal to supply Energy Burgenland Windkraft’s 33MW Parndorf project.

A total of ten turbines, a mix of the V126-3.3MW or V112-3.3MW models are due to be installed at the site in eastern Austria. Delivery and commissioning is expected by the end of 2017.

“To achieve the lowest cost of energy at the Parndorf wind farm, we needed to leverage two different turbine variants installed with two kinds of towers,” said Vestas central Europe president Nils de Baar.


The Danish manufacturer won a 54MW order in Australia from Tilt Renewables, as part of an EPC contract.

Vestas will install the Salt Creek project in Victoria with V126-3.45MW turbines – with the power optimisation mode to produce 3.6MW – in 2018.

“Vestas has now signed more than 500MW of orders in Australia since late 2016, which together with the recent announcement of our new 4MW turbines positions us well to continue delivering highly successful wind energy projects for our customers,” said Clive Turton, president of Vestas Asia Pacific.

Also in Australia, Vestas won a fleet-wide servicing contract with Infigen Energy covering their 557MW operating portfolio from 1 January 2018.

As part of the deal, Vestas will manitain the entire Infigen fleet, which includes 189MW of Suzlon turbines, for between seven and 15 years, depending on the project.


In Latin America, Vestas has been awarded an 100MW order from Parque Eolico de Bicentenario, a subsidiary of state cement and petrochemical firm Petroquímica Comodoro Rivadavia.

It will provide 28 V117 power-optimised 3.45MW turbines to a project in Santa Cruz, southern Argentina.

The project was successful in the Renovar energy auction in November.

“In just six months, we have signed about 500MW in the country. Almost half of that comes from the Renovar auction,” said Vestas Mediterranean president Marco Graziano.

United States

The Danish manufacturer has received two orders in the US totalling 130MW.

Firstly, it was awarded the 70MW deal to provide its V110-2MW turbines to the Copenhagen wind project in New York, developed by EDF Renewable Energy.

It forms part of a master supply agreement between the two firms signed in 2016.

Delivery is due in Q3 2018 and includes ten years servicing.

And, Vestas will supply 30 V110 turbines, optimised to 2.2MW each, to an unnamed project in the US.

The order includes some components purchased in PTC-securing deals made before the end of 2016, when the availability of the maximum credit value expired.


Vestas also won the first order for its high wind V105-3.45MW, optimised to 3.6MW, for a project in Ireland. 

The 14MW Cappawhite B project in Tipperary County, southern Ireland is being developed by German firm ABO Wind. It is due online by Q3 2018. 

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Source: Test from Wind Power Monthly

Photo of the Day: Offshore Wind Components at Sif’s Maasvlakte Site

Image: Sif

Sif Group has published a photo of its new site at Maasvlakte in Rotterdam accommodating, among others, piles for the Beatrice offshore wind farm foundations and monopiles for the Rentel offshore wind farm. 

The company was awarded a contract to deliver pin piles for the Beatrice project last year. The piling at the 588MW UK offshore wind farm is already well under way and is being carried out by Seaway Heavy Lifting (SHL).

Together with Smulders, Sif has been contracted by GeoSea for the production of foundations for the 309MW Rentel offshore wind farm in the Belgian North Sea. All 42 monopiles are being produced by Sif, while the transition pieces will be produced by Sif in joint venture with Smulders, whereby Sif will produce the primary steel and Smulders will be responsible for the outfitting of the transition pieces.

Back in June 2015, the company signed and agreement with the Port of Rotterdam for the construction of a production, storage and load-out terminal at Maasvlakte 2. Sif is using the 42-hectare terminal to produce steel foundations for offshore wind farms and the oil and gas industry.

The company completed the first monopiles, produced for the Galloper offshore wind farm, at its new assembly facility in Rotterdam in September 2016.

The first 150 meters of the new quay were ready at the beginning of this year, and the entire site is scheduled to be put into operation in July.

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Source: Test from Offshore Wind News

DONG Energy and Vattenfall to Help Each Other at Horns Rev

DONG Energy and Vattenfall have initiated a common project to ensure the emergency power supply for DONG Energy’s wind farm Horns Rev 2 and Vattenfall’s upcoming wind farm Horns Rev 3 in Denmark. 

The companies have entered a mutual agreement on supply of emergency power for each other’s wind turbines if their respective export cables to land fail.

Niels Møller Jensen, project manager at Vattenfall, said: “If the export cable fails, it’s not only critical for the supply of electricity to customers on the mainland. A cable outage is also critical to the wind turbines. All turbines must always have power, especially to keep the blades’ positions correct in relation to the wind direction. Emergency power for the wind turbines normally comes from one single large, centrally located generator on a platform at sea.

“At Horns Rev 3, we’ve chosen to install a small generator in each of the 49 wind turbines and, as something new in the industry, we’ve made an agreement with DONG Energy that we install an 8km long 33kV cable between Horns Rev 2 and Horns Rev 3, thereby establishing a connection between both wind farms.”

The small diesel generators in the wind turbines at Horns Rev 3 will ensure the power supply for a few days until Vattenfall knows how long a potential power failure will last. If it seems to last for a longer period, the supply from Horns Rev 2 is switched on and the wind turbines on Horns Rev 3 can be supplied with emergency power until the export cable is back in operation. The same goes for the other way.

Leif Winther, DONG Energy Asset Management, said: “We see the cooperation with Vattenfall on the emergency power supply as a good guarantee for both wind farms, which keeps the wind turbines in good condition so that they can start producing again really quickly once the fault is corrected and in addition, it’s a relatively small investment in an emergency power cable if one looks at the total cost of an offshore wind farm.” 

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Source: Test from Offshore Wind News

Offshore Wind Market Size to Surpass 60GW by 2024, GM Insights Report Says

Offshore wind market size will surpass 60GW by 2024, according to the latest report by Global Market Insights.

Increasing measures to reduce the greenhouse gas emission along with growing electricity demand will significantly drive the global offshore wind market size. In 2016, the member countries of the European Union announced their plan to achieve 21% renewable energy targets by 2020 through concurrently reducing the GHG emission level to 26% from 1990 level.

Rising investment towards the development of clean energy sources from financial institutions including International Finance Corporation (IFC), Asian Development Bank (ADB) and the World Bank will upsurge the market share. The Government of UK has established the Offshore Wind Investment Organization (OWIO) to promote investments towards sustainable energy resource integration. The country has further acknowledged the green investment bank to raise and circulate funds across clean energy projects.

UK offshore wind market will witness strong growth subject to favourable government measures to support the development of sustainable technologies. Regulators have introduced Contracts for Difference to ensure long term stable revenues from electrical infrastructure projects across the country. The Reform further lays provisions to ascertain viable returns to investors along with encouraging investments through leveraging schemes.

High-end research initiatives to cater to the competitive energy industry through efficient and cost-effective technology will drive the market size. In 2017, German Federal Network Agency launched an offshore wind tender for 1.5GW to lower the generation tariff. The government of Netherlands is also targeting to reduce the overall cost by 40% over the next decade. In 2017, Siemens and Statoil in collaboration have established a 30MW floating wind farm across Norway under the Hywind Scotland project.

Wires and cables in 2016 accounted for over 2% of the offshore wind market revenue share. Expanding microgrid networks favored by advancing distributed generation technology will embellish the business landscape. In 2016, Belgium’s Tideway awarded USD 14.1 million contract to Prysmian for supplying 33kV inter array submarine cables for a 309MW power project.

China market is set to expand to over 12GW by 2024. Clean energy capacity addition target accompanied by exponentially rising energy demand will uplift the industry size. Increasing government aided funds coupled with asset and financial leveraging facilities towards development of sustainable energy projects will further stimulate the business outlook. In 2017, State Power Investment Corporation announced its plan to develop 800MW wind farm across coast of Yancheng and Jiangsu.

Favorable government polices coupled with increasing investments towards the expansion and enhancement of sustainable energy will foster the U.S. offshore wind market.

Source: Global Market Insights

Source: Test from Offshore Wind News

A2SEA Names New CEO as Jens Frederik Hansen Resigns

A2SEA’s Board of Directors has decided to appoint Michael Glavind, who currently holds the position of Chief Financial Officer, as the new Chief Executive Officer (CEO) of the company. Glavind will take up his new role as CEO with immediate effect.

Chairman of A2SEA, Thomas Dalsgaard, said: “After careful consideration the Board of Directors has concluded that the time has come for a change in the A2SESA management. The Board is very pleased that Michael Glavind has accepted the position. He has an extensive track record in A2SEA and many years of experience from the offshore wind installation sector. The Board of Directors believes that Michael Glavind is the right person to ensure the continued operation and development of A2SEA’s activities.”

Michael Glavind replaces Jens Frederik Hansen, who has chosen to leave A2SEA in mutual agreement, the company explained, adding that A2SEA and Jens Frederik Hansen had decided not to comment any further on his resignation.

Thomas Dalsgaard said: “Jens Frederik Hansen has made a huge contribution to A2SEA for nine years and is handing over a well-run company. I would like to thank Jens Frederik for his contributions and wish him good luck in the future.”

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Source: Test from Offshore Wind News

German citizens' windpark euphoria fades

Confidence has been hit by the lack of a guarantee that the mostly unpermitted projects will be built, together with the fact that the capacity from any projects that fall through cannot be brought back for re-auction.

Furthermore, auction rules favouring citizen projects by allowing them to participate with unpermitted projects opened the door to speculative bidding, according to some critics.

The longer implementation times for citizen projects, as well as the risk of them not getting a permit, could result in a sharp dip in installations in 2019/2020, the German wind energy association BWE warned.

At the first auction, 65 out of 70 winners were citizen projects, totalling 776MW, or 96% of the total winning capacity of 807MW. Only four of the successful citizen projects had permits in place.

The unhealthy similar nature of players winning in the first round and the tight definition of citizens’ projects in auction rules – for instance, not allowing energy cooperatives – have also been criticised by the association.

The alarm bells have been heard, however, and a first corrective step taken.

An amendment requiring citizen projects to hold permits before entering auctions on 1 February and 1 May 2018 was passed by parliament on 29 June.

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Source: Test from Wind Power Monthly

DHI Holds Live Demo of TetraSpar Floating Foundation Tests

DHI, together with DTU Wind Energy and Stiesdal Offshore Technology, recently opened doors to the offshore wave basin at its headquarters in Denmark for all those interested to witness the tests of Henrik Stiesdal’s TetraSpar floating foundation concept.

The event took place on 20 June with more than 100 people visiting the facility to see the latest developments in floating wind being put to the test.

The 1:60 scale model tests are carried out using DTU’s 10MW scale model pitch-controlled wind turbine, and two floater configurations are considered. The floating wind turbine is subjected to wind and wave forcing for a number of operational and survival conditions.

The objectives of the model test campaign are to provide a proof-of-concept of the TetraSpar foundation as well as advance experimental testing and data analysis techniques in this area.

Henrik Stiesdal is a Danish inventor and former Chief Technology Officer at Siemens Wind Power who has worked with wind energy technologies since the later 1970s.

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Source: Test from Offshore Wind News

Siport21 Studies Safety Conditions in Foundations Transport and Installation

Siport21, a Madrid-based port-maritime consultancy company, has presented the “Methodology of the hydrostatic and hydrodynamic analysis of fixed and floating structures for the offshore wind industry”, which allows studying the safety conditions during transport and installation of the support structures for offshore wind turbines.

The work is based on a dynamic analysis of gravity-based structures and floating foundations for offshore wind turbines or auxiliary structures. Different tools were used to simulate the behaviour of floating, moored, towed or anchored structures, under the effect of various combinations of wind, waves and currents.

For the assessment, analysis criteria of classification societies such as DNV GL, Lloyd’s, and ABS were used.

Based on the analysis, it was possible to elaborate operation, towing and installation procedures and emergency plans which can be optimised according to meteorological, operational and survival criteria.

Also, the methodology allows for optimisation of the turbine operation, improvement of the geometry of the support structure, and avoiding traffic interference in the area using manoeuvre simulation tools.

The company presented the methodology during the 8th Technical Meeting of the Marine Renewable Energy Working Group.

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Source: Test from Offshore Wind News