Latest news : Construction

Dogger Bank Wind Farm celebrates transmission technology milestone

10th May 2022 in Construction, Press releases, Project news, Supply Chain

The first of a number of transformers that will enable the transmission of renewable energy from the world’s largest offshore wind farm has been delivered.  

The transformers will play an integral role in the operation of three onshore convertor stations in East Riding of Yorkshire and on Teesside, that will eventually convert the current from the wind farm for transmission via the national grid network to 6 million UK homes.  

This week the first transformer was successfully transported from Port of Hull to the first convertor station off the A1079 near Beverley in East Riding, where construction of a second convertor station is also underway by tier one supplier Hitachi Energy. Three further deliveries are scheduled in East Riding on the mornings of 15, 22 and 29 May, with deliveries for the second East Riding convertor station taking place in 2023.  

Heavy lift and transportation specialist Allelys, was appointed by Hitachi Energy to carry out and oversee these latest deliveries. 

Dogger Bank Wind Farm Transmission Package Manager Børge Angelfloss, said:  

“Successful delivery of the first transformer is an important milestone for our world-leading project.  

“Our thanks go to all those involved in ensuring this happened safely, including the local highways authority and representatives from Humberside Police for their valuable expertise on the route between Port of Hull and our convertor station site.” 

Hitachi Energy is due to start work on the third convertor station on Teesside later this year. The company is responsible for providing its high-voltage direct current (HVDC) Light® systems for all three phases of the wind farm, including the projects three high-tech onshore convertor stations.  

Göran Isacsson, Project Director for Hitachi Energy, said: 

 “Hitachi Energy is proud to be connecting the Dogger Bank Wind Farm to the energy grid using HVDC (high voltage direct current) technology.  

“The delivery and installation of the transformers at the onshore converter stations we are building are important milestones for the project. We are pleased to have successfully achieved this first shipment and we thank the local authorities and community for their support and patience.”  

Dogger Bank Wind Farm is being built in three phases known as A, B and C. The project is a joint venture between SSE Renewables (40%), Equinor (40%) and Eni Plenitude (20%).   

It will be the first HVDC connected wind farm in the UK, paving the way for other UK wind farms and suppliers to build on our experience transmitting renewable energy safely and efficiently across long distances while minimising potential losses.   

Last month the Dogger Bank Wind Farm team officially marked the start of its offshore construction work with the installation of the first length of HVDC export cable off the Yorkshire coast.

Tier one supplier NKT is leading the work to install the Dogger Bank A nearshore cable, that will connect the first phase of the windfarm more than 130km off the coast to a landfall point at Ulrome, in East Riding of Yorkshire.

ENDS 

Picture caption: The first transformer has been delivered to the convertor station site for the first phase of Dogger Bank Wind Farm. Image source: Dogger Bank Wind Farm 

First transition pieces on the move

9th May 2022 in Construction, Project news, Supply Chain

The first transition pieces for the first phase of Dogger Bank Wind Farm have been successfully loaded out at Smulders’ yard in Hoboken, Belgium. The transition pieces are being shipped to Sif’s Maasvlakte 2 terminal in Rotterdam ahead of their installation in the North Sea starting later this year.

In total, 95 transition pieces will be installed on Dogger Bank A, with a further 182 required for phases B and C of the world’s largest offshore wind farm.

Dogger Bank Wind Farm Marine Package Manager, Alan Evans, said:

“With a diameter of 8m and weighing in at 550 tonnes, the Dogger Bank A transition pieces are the heaviest and have the largest diameter of any to be manufactured at Smulders’ Hoboken facility.

“Successful load out of the first four of these impressive structures is an important milestone for everyone involved, and a testament to the strong partnership we share with our designers and manufacturers.”

In November 2020, the consortium Sif and Smulders was awarded the contract for the manufacture of all 190 monopiles and transition pieces for the first phases of the wind farm in November 2020, with a contract for Dogger Bank C awarded in 2021.

The monopile foundations and transition pieces for the project were designed in the UK by Wood Thilsted. Steel manufactured by Tata Steel in Wales and processed in Corby and Hartlepool is to be used in the supporting components of the transition pieces, while South Tyneside-based Metec and Rochdale-based Granada Material Handling have also won contracts with Smulders to support this innovative and world-leading project.

Caption: The first transition pieces for the first phase of Dogger Bank Wind Farm have been successfully loaded out at Smulders’ yard in Hoboken, Belgium. Image source: Smulders

Dogger Bank wind farm convertor station upcoming transformer deliveries

28th April 2022 in Construction, Press releases, Project news, Supply Chain

Dogger Bank Wind Farm’s tier one contractor Hitachi Energy will begin to transport electricity transformers from Hull to the project’s East Riding convertor station site near Cottingham from May 8.

The transformers will travel from Albert Dock, Hull via A63, A1034 and the A1079. The size of the transformers requires the use of abnormal load vehicles. There will be four deliveries during the month of May, expected to be made on the mornings of 8, 15, 22 and 29 May, with each delivery taking up to six hours, dependent on the conditions.

Rachel Lawrence, Community Engagement Manager for Dogger Bank Wind Farm, said:

“While we will do everything, we can to minimise disruption during these deliveries, it is it is possible some journey times may be slightly longer than normal and we would ask the public for their patience as we carry out this critical work.

“Our contractors will be working with officers from Humberside Police to ensure the transportation is carried out safely and securely, and with minimal impact on the communities close to these roads. Delivery of these transformers is an important milestone for the construction of our infrastructure in East Riding, which will be home to two of our three convertor stations for the world’s largest offshore wind farm.

“We are extremely grateful for the ongoing patience and understanding of the communities in this area as we build the infrastructure that will help the UK to reduce carbon emissions and create a secure electricity supply for 6 million UK homes.”

The transformers will be delivered on specialist girder frame trailers provided by UK firm Allelys. The trucks will be more than 58.2 metres long and 4.75 metres wide and will travel at approximately 10 -15  miles per hour. To support the delivery the team has worked with contractors and local highway officials from East Riding of Yorkshire Council to carefully plan the route and minimise disruption to road users. The specialist girder frame trailer will have a police escort to help manage traffic and make the process as smooth and safe as possible.

Overview of the route:

The delivery convoy consisting of the abnormal load vehicle, police and support vehicles will leave the Albert Dock in Hull and make its way westbound, along the A63 to join the A1034 at South Cave heading north. The convoy will then join the A1079 at Market Weighton, heading east until the outskirts of Beverley, where the vehicle will turn south remaining on the A1079 and is expected to arrive at the convertor station site entrance, located between Beverley and Cottingham in the afternoon on the specified dates.

The transformers will play an integral role in the operation of two onshore convertor stations in East Riding of Yorkshire that are currently under construction at the A1079 site between Beverley and Cottingham. Eventually they will convert the current from the wind farm for transmission via the national grid network to millions of UK homes after the renewable energy has made its way under the ground from the landfall point at Ulrome, between Bridlington and Hornsea.

Details of further transformer deliveries in 2023 will be communicated nearer the time.

ENDS

 Picture caption: Allelys will deliver transformers to the Dogger Bank Wind Farm convertor station site from 8 May. Picture source: Allelys.

 

Dogger Bank-destined jack-up vessel marks sea change in turbine installation capability

31st January 2022 in Construction, Press releases, Project news, Supply Chain

The jack-up vessel that will enter service for the first time to install the turbines on Dogger Bank Wind Farm has been officially launched.

Jan De Nul’s Voltaire will play a critical role in the installation of 277 GE Haliade-X turbines in the North Sea, more than 130km off the Yorkshire coast of England.

With a lifting capacity of more than 3,000 tonnes and a deck space equal to a football pitch, the ship is the largest of its kind in the world.

The next generation vessel was launched at the COSCO Shipping Shipyard in Nantong, China.

Steve Wilson, Dogger Bank Project Director, said:

“We congratulate Jan De Nul on successfully launching its unrivalled Jack up Vessel, the Voltaire. This impressive installation vessel will play a critical role in the construction of all three phases of Dogger Bank Wind Farm when it enters service, demonstrating an innovative engineering solution to the growing challenge presented by larger and more technically demanding wind farms.”

Dogger Bank wind farm agreed a contract with Jan De Nul for the transport and installation of turbines for the first two phases of the wind farm in 2019, with the Dogger Bank C contract following on last year.

The Voltaire will be able to run on second-generation biodiesel that reduces its fuel carbon footprint by up to 90%, and is also equipped with an advanced dual exhaust filter system, removing up to 99% of nanoparticles from emissions.

The launch of this environmentally-innovative vessel came just 20 days after Jan De Nul launched its Les Alizés ship to serve the growing demand from current and future wind farm projects.

Philippe Hutse, Director Offshore Division at Jan De Nul Group, said:

“The Voltaire will enable us to work in deeper waters and reach ever higher nacelle heights than before. Adding Voltaire and Les Alizés to the fleet gives us the perfect set of vessels to execute the growing number of large and clustered international offshore wind projects. Our forward-looking view on market trends and the quick decision making to invest in this set of Next Gen installation vessels, have done us no harm. The Voltaire and Les Alizés have all the required specifications to meet the upcoming challenges in offshore renewables. We are proud to be recognised for the choices we made back in 2019, and look forward to continuing our journey, alongside industry leaders, through our contribution to renewable energy growth in the worldwide energy transition.”

One third of onshore high voltage cables and three quarters of ducts installed for first two phases of Dogger Bank Wind Farm

3rd December 2021 in Construction, Press releases, Project news, Supply Chain

Three quarters of the ducts and a third of the on-shore high voltage cables that will connect the first phases of the world’s largest offshore wind farm to the UK’s National Grid have now been installed.

Jones Bros Civil Engineering UK is delivering the land-based infrastructure for the first two phases of Dogger Bank Wind Farm, which will connect to the National Grid near Beverley, East Riding. There are also a number of UK-based specialists supporting the Jones Bros team with the cable installation work.

The North Wales-headquartered company is responsible for installing 80 miles of underground cabling in underground ducts on land in East Riding of Yorkshire from the landfall site at Ulrome, to the onshore convertor station near Beverley.

With wetter weather now closing in, much of the site is entering a winter shutdown in order to preserve the quality of the soil. However, some drilling work will continue into the new year under the A1079 north of Woodmansey, and at the Creyke Beck Substation, with the tier one contractor planning to complete this by Spring 2022.

Onshore works manager for Dogger Bank Wind Farm, Oliver Flattery, said:

“Great progress has been made over the last few years to prepare the land-based infrastructure for the first two phases of the world’s largest offshore wind farm.

“We remain committed to operating safely, sustainably and respectfully as we continue our drilling work in East Riding of Yorkshire, and as duct and cable installation work picks up again in the Spring.”

James Lockwood, project manager for Jones Bros, said:

“We have made excellent progress while the weather has been with us, and as such have installed a significant amount of cable.

“The cable itself runs across two routes: a DC route which goes from the connection point with offshore cables to the converter station, and a shorter AC route, which then runs from the converter station to National Grid infrastructure.

“Additionally, we have been able to start some works restoring parts of the site, a process which includes sowing a mix of specially selected cover crops that will help maintain the nutrient levels in the soil in preparation of the final reinstatements work due to carried out next year.

“Once better weather returns in the spring, we’ll be back underway with high voltage duct and cable installation, working towards a final site handover in June 2023.”

The team has also constructed 28 of the project’s 74 joint bays, which will form part of the infrastructure for the connection between offshore power cables and the mains grid.

Dogger Bank Wind Farm, which is being built more than 130km off the Yorkshire coast in the North Sea, is currently being developed in three 1.2GW phases: Dogger Bank A, B and C.

Dogger Bank A and B is a joint venture between SSE Renewables (40%), Equinor (40%) and Eni (20%). In November 2021 SSE Renewables and Equinor, 50:50 joint venture partners in Dogger Bank C, announced Eni will take a 20% stake in the final phase, with SSE Renewables and Equinor maintaining 40% stakes each. The deal is expected to complete in Q1 2022, subject to  regulatory approvals.

ENDS