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Construction commences for Dogger Bank Wind Farms

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One of the UK’s leading civil engineering contractors puts first spade in the ground as construction kicks off for world’s largest offshore wind farm. 

Dogger Bank Wind Farms, a joint venture between SSE Renewables and Equinor, is made up of three offshore wind farm sites in the North Sea, totalling 3.6 gigawatts (GW): Creyke Beck A (1.2GW), Creyke Beck B (1.2GW) and Teesside A (1.2GW). All three sites were successful in the UK’s September 2019 Contracts for Difference (CfD) auctions.

The wind farm will make use of the world’s most powerful turbine, GE’s Haliade-X, and will be capable of generating enough renewable energy for over 4.5 million homes each year.

Jones Bros Civil Engineering, one of the UK’s leading civil engineering contractors, headquartered in Ruthin, North Wales, has been awarded the contract to install the onshore cable infrastructure for the Creyke Beck A and Creyke Beck B sites. The works will also involve completing bulk earthworks at the onshore HVDC convertor station locations in East Riding.

The onshore infrastructure includes the installation of approximately 20 miles of electrical cables within ducts. The ducts will be installed within trenches and where required via drilling under existing infrastructure and natural obstacles.

The completed onshore cable will transport the power generated by the two offshore wind farm sites, Creyke Beck A and Creyke Beck B from the landfall point at Ulrome to the new convertor stations (one per project) in the south of Beverley. The cable route will connect to the existing National Grid substation at Creyke Beck, Cottingham.

The works contract also includes vegetation clearance, preparing access junctions and construction of a temporary access road to facilitate the main works, and installation of pre- and postconstruction land drainage.

The full works are expected to take approximately two years to complete.

Steve Wilson, Managing Director of Dogger Bank Wind Farms, said: “Getting the first spade in the ground is a significant milestone on any project, but for what will be the world’s largest offshore wind farm, this is a major moment for a project that has already been over a decade in the making.

“Dogger Bank Wind Farms will play a critical role in the UK’s effort to achieve net-zero through the use of low-carbon fuel sources and we’re incredibly pleased to work with one of the UK’s leading civil engineering contractors, Jones Bros, as we commence construction and start delivering Dogger Bank.”

Garod Evans, Jones Bros Contracts Director, said: “We have worked with SSE Renewables on major schemes previously and we are delighted to be developing our partnership through working with them and now Equinor on the onshore works for Dogger Bank Wind Farms.

“There will be up to 100 Jones Bros personnel, from management to apprentices and trainees, on site at the height of the works.

“This is a really significant project to be involved with and it’s exciting for us to play a part in delivering support to what will be the world’s biggest offshore wind farm.”

Offshore

E.ON decommissions Blyth offshore wind farm

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Britain’s first offshore wind farm reaches end of technical lifespan.

E.ON is decommissioning an offshore wind farm for the first time. Blyth’s two 2-megawatt turbines were the UK’s first offshore wind farm and have reached the end of their technical lifespan. A consortium including E.ON built the turbines off the Northumberland coast in 2000. During its operational lifetime, Blyth generated enough electricity to supply 2,000 households with renewable energy and saved 4,520 metric tons of carbon dioxide each year.

Blyth ushered in a new era of renewable technologies. As an offshore wind pioneer, E.ON used this example to lay the foundation for the future of the technology. It has undergone rapid development. Since then, E.ON alone has installed a further 600 offshore wind turbines in the seas of northern Europe.

The legacy of the first British offshore wind farm is a test area in the Blyth region for the construction, operation and maintenance of offshore wind farms. This hub for innovation at sea is a starting point which has seen the UK subsequently develop into a world leader in offshore wind.

The dismantling work will start in April and is expected to take four to six weeks. One of the turbines will be recycled and reused for spare parts within E.ON’s onshore fleet and the other will be used for training purposes by the Port of Blyth.

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Offshore

Looking through the Project Finance Market for European Offshore Wind to form a basis for Turkish Offshore Wind Project Finance Structures (2)

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Ozlem Kildir
Instructor of Energy Financing at the Sabancı University Graduate Program
for Energy Management & Technologies
Owner of Profinstance© Project Finance Advisory & Training
Financial Consultant for WindThink Consultancy

(Click here to read the first part of the article)

Project Finance Loan Terms & Conditions in the European Offshore Market and the evolution of
Project Financing Structures
Lenders of Project Finance Loans of Offshore Wind Projects
Commercial banks, state banks, multilaterals, export credit agencies are well-placed in the global and mainly
European offshore market. In the initial examples development bank and ECA structures were common,
where commercial banks increased their risk appetite, for offshore wind financing. Over 30 international
commercial banks with offshore financing experience, are active in the market. In general, when the project
investment cost is over 50-150 million EUR a club loan or consortium lender group is formed, with an
underwritten amount of 30-50 million EUR, in the European structures.
Looking at how onshore wind financing structures have evolved in the Turkish market it is acceptable to
assume a development bank and ECA involvement at first. Also, the current market conditions would favor a
lower interest rate capability in the financings.
Initial funds needed for wind measurements, geological surveys, designs and technical due diligences
would be based on equity investments backed by corporate lines as the first Geothermal Project Financings
have been done in the Turkish market.

 

Please click here to read more: https://view.publitas.com/p222-1755/ruzgar-enerjisi-dergisi-kasim-2018-sayi-24/page/42-43

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The North Sea “wind harvest” of the first half of 2018 exceeds the first half of 2017 by more than five percent

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In the first half of 2018, the wind energy transferred by transmission system operator TenneT from the North Sea to the shore rose to 8.17 terawatt hours (TWh). This corresponds to an increase of 5.15 percent compared to the first half of 2017 (7.77 TWh). “We see significant potential for optimising the use of existing transmission capacities,” said TenneT’s managing director  Lex Hartman. “Approximately 660 megawatts of grid connection capacity will run idle in the foreseeable future in the North Sea. The legislator could allocate these free resources to offshore wind farms via an additional tender to offshore wind farms. With an eye on the new goal of the Federal Government, according to which the share of renewable energies should reach 65 percent by the year 2030, we should use such potential to its fullest extent,” says Hartman.

In addition, TenneT is calling for western German North Sea wind farms to be linked to the Dutch electricity grid in the future. One such cost-effective solution could be a connection to Eemshaven. Because this grid connection point is located directly on the coast, it would be possible to save 100 kilometres of underground cables in Germany and thus around 200 million euros, while at the same time bypassing bottlenecks in the German electricity grid on land.

The necessary legal certainty could be achieved through a German-Dutch Treaty, which would stipulate that German wind farms will continue to be subject to German and offshore liability regulations. 

In the Netherlands, TenneT is already investigating to connect to the UK by linking the future “Ijmuiden Ver” and “East Anglia” wind farms with a short cable, creating an interconnector between the two countries.

In the German North Sea, TenneT currently has ten offshore grid connection systems with a total capacity of 5,332 megawatts (MW) for transmitting wind energy from sea to land. As such, TenneT has now achieved more than 82% of the federal government’s expansion target of achieving 6,500 megawatts of offshore wind capacities by 2020. By the end of 2023, TenneT will successively complete three additional grid connection systems, which will provide 8,032 MW of transmission capacity in the North Sea.

By 2027, three more connections will be prepared by TenneT or will be pending further commissioning according to the preliminary design of the land development plan of the German Federal Maritime and Hydrographic Agency (BSH). This will increase the transmission capacity in the German North Sea to almost 11,000 MW.

The current maximum infeed performance of offshore wind farms in the North Sea reached 4,431 MW on 31 March 2018. Compared to the end of 2017, the capacity expansion of the offshore wind farms in the North Sea remained unchanged at 4,716 MW on the reporting date of 30 June 2018. 

The North Sea wind harvest amounted to 8.17 terawatt hours in the first half of 2018 and, with 15.1 percent, again confirmed its strong share of total wind energy generation in Germany, which reached about 54 terawatt hours in the first half of the year. 

The wind turbines in the Baltic Sea (not within the TenneT grid area) generated 0.87 terawatt hours) in the first half of 2018, which means Germany’s total offshore yield amounted to 9.04 terawatt hours). With an addition 44.95 terawatt hours) of generated onshore wind energy, the total yield is thus 53.99 terawatt hours).

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