First Dogger Bank onshore cables arrive ready for 129km of cabling installation

First Dogger Bank onshore cables arrive ready for 129km of cabling installation

Jones Bros Civil Engineering UK has received delivery of the first cables for the onshore works at the Dogger Bank offshore wind farm to be located off the east coast of England.

The contractor said approximately 129km of cabling will be installed for the first two 1.2GW phases of the wind farm at a site near Hull.

Deliveries will take place every fortnight, with 82 cable drums to be transported to the site over the course of the scheme.

Each drum weighs 41 tonnes, with the combined weight (3362 tonnes) heavier than Wimbledon’s Centre Court roof (3000 tonnes).

Bristol-based high voltage electrical engineering specialists Powersystems will support the Jones Bros during the installation of the cables.

Jones Bros project manager James Lockwood said: “The arrival of the cable drums marks a significant point in our works on the grid connection and land-based infrastructure.

“The site team have done a fantastic job over the past four months to allow for deliveries of the cables to start on time and on programme.

“The 80 miles of cabling will be used along a 20 mile route to help connect the offshore wind farm to the national grid, and we remain committed to minimising disruption in the local area as we carry out this work.”

Dogger Bank onshore project manager Oliver Flattery said: “The Jones Bros team has worked hard since the start of 2020 to safely and efficiently prepare the ground in East Riding, in readiness for more than 3000 tonnes of cables to be installed from July onwards.

“We thank local residents and businesses for their patience over the last 18 months, and continue to focus on operating safely and with minimal disruption as we progress our work with the installation of the cables that will transmit renewable energy to millions of UK homes.”

Dogger Bank is currently being developed in three 1.2GW phases, known as Dogger Bank A, B and C.

Dogger Bank A and B are owned by SSE Renewables (40%), Equinor (40%) and Eni%), while Dogger Bank C is a 50:50 joint venture between SSE Renewables and Equinor.

Powersystems will support Jones Bros for the installation of onshore cables for Dogger Bank Wind Farm

Powersystems will support Jones Bros for the installation of onshore cables for Dogger Bank Wind Farm

Delivery of onshore cables for Dogger Bank Wind Farm has started, according to Jones Bros Civil Engineering UK, the company responsible for installing the cables for the first two phases of the offshore wind project.

The first drum with the cables has already arrived and Jones Bros are set to commence installation this month.

In total, there will be around 130 kilometres of cabling installed for Dogger Bank A & B, with cable deliveries set to take place every fortnight. Over the course of the construction phase of the project, 82 cable drums will be transported to the site.

Each drum weighs 41 tonnes, with the combined weight (3,362 tonnes) heavier than Wimbledon’s Centre Court roof (3,000 tonnes), the civil engineering company said.

Bristol-based high voltage electrical engineering specialists Powersystems will support Jones Bros during the installation of the cables.

“The arrival of the cable drums marks a significant point in our works on the grid connection and land-based infrastructure”, said Jones Bros project manager James Lockwood“The 80 miles of cabling will be used along a 20 mile route to help connect the offshore wind farm to the national grid, and we remain committed to minimising disruption in the local area as we carry out this work”.

According to earlier information, NKT, which recently signed a contract for the delivery of Dogger Bank C offshore and onshore export cables, is also the supplier of the export cables for Dogger Bank A and B.

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

Dogger Bank A and B is a joint venture between SSE Renewables (40 per cent), Equinor (40 per cent) and Eni (20 per cent), while Dogger Bank C is a 50:50 joint venture between SSE Renewables and Equinor.

The first two phases are scheduled to be operational by 2024, while the third phase, Dogger Bank C, is being developed on a different timescale with the operation date set for 2026.

Construction work on the first two phases is underway, with the third phase now also joining in after official ground-breaking in Teesside.

ABB to deliver power converters for UK’s Dogger Bank wind farm

ABB to deliver power converters for UK’s Dogger Bank wind farm

In ABB’s largest order to date for medium voltage wind turbine converters, 95 units will be delivered to GE Renewable Energy and installed at the UK’s Dogger Bank Wind Farm.

The 95 PCS6000 medium voltage converters will be installed in GE’s Haliade-X 13MW wind turbines, which will produce 1.2GW of power in the first phase of the Dogger Bank project.

ABB’s converters will play the vital role of taking the power produced by GE’s wind turbines and converting it to the right voltage and frequency for the wind farm grid. The converters are rated to handle the high-power output, with one rotation of each 220-meter diameter rotor generating enough electricity to last a UK household two days.

“The selection of the right converter is critical to achieving the performance and reliability that yields the maximum return on investment. And medium-voltage converters are the optimum choice for today’s high-power wind turbines,” said Chris Poynter, division president for System Drives, ABB Motion.

ABB in Turgi, Switzerland is leading project engineering while the PCS6000 converters will be manufactured by ABB in Łódź, Poland. First delivery is scheduled for summer 2021 with completion in late 2022.

The Dogger Bank Wind Farm is being developed in three phases as a 50:50 joint venture between SSE Renewables and Equinor. It is located more than 130km from the North East coast of England and will have a total power output of 3.6GW, capable of powering six million homes.

ABB’s collaboration with GE began in 2017 and the companies have worked closely to optimize the PCS6000 converter for the Haliade-X platform. This included successful test operations on a turbine installed at the Port of Rotterdam, Netherlands.

Eni buys stake in Dogger Bank

Eni buys stake in Dogger Bank

Italian energy company Eni has entered into agreements to purchase 10% stake each from Equinor and SSE Renewables of the Dogger Bank A and Dogger Bank B wind farms.

Once the transaction is complete, the new overall shareholding in the two projects will be – SSE (40%), Equinor (40%) and Eni (20%).

Under the agreements, Eni will pay a consideration of £202.5m, subject to adjustments for interest on closing, to both Equinor and SSE Renewables. The transaction is expected to close in early 2021, subject to regulatory and lenders approvals and customary purchase price adjustments.

“Dogger Bank is the largest wind farm in the world under construction, and we are pleased to welcome Eni as a new partner. Through the sheer scale of the project we have delivered record-low contract prices for the UK market, and as operator of the wind farm we will continue to deliver value to the UK for years to come. Together with our partners we will continue to drive the energy transition to a net zero emissions future for the UK,”
 commented Pål Eitrheim, Executive Vice President in New Energy Solutions in Equinor.

“For Eni, entering the offshore wind market in Northern Europe is a great opportunity to gain further skills in the sector thanks to the collaboration with two of the industry’s leading companies, and to make a substantial contribution to the 2025 target of 5 GW of installed capacity from renewables, an intermediate step towards the more ambitious target of zero net direct and indirect greenhouse gas emissions in Europe by 2050,” 
says Claudio Descalzi, Chief Executive Officer of Eni.

Gregor Alexander, SSE’s Finance Director, said: “The sale of a stake in Dogger Bank Wind Farm to Eni is another successful example of SSE’s approach to partnering to create and secure value for shareholders. This transaction will enable us to fund further low carbon growth opportunities, helping to deliver governments’ net zero ambitions and our own target to treble our renewable output by 2030.”

The Dogger Bank wind farms are located more than 130 km from the Yorkshire coast. SSE Renewables is leading the construction of the wind farm, and Equinor will operate the project during its lifetime of at least 25 years. Further to Dogger Bank A and Dogger Bank B, the two companies are also developing the Dogger Bank C project for which it is expected that a financial decision will come in late 2021. The projects will be capable of powering up to 4.5 UK million homes each year when complete in 2026.

Due to its size and scale, the overall wind farm is being built in three consecutive 1.2 GW phases. Each project is expected to generate around 6 TWh of electricity annually. The Dogger Bank Wind Farm secured 3.6 GW of offshore wind contracts in the UK government’s 2019 Contracts for Difference (CfD) auctions. The CfDs awarded provide overall price certainty to each phase of the Dogger Bank project for a period of 15 years.

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UK doubles down on renewables with 12 GW Contracts For Difference Round Four (CfD4)

UK doubles down on renewables with 12 GW Contracts For Difference Round Four (CfD4)

UK Energy Ministry BEIS will allocate supports for up to 12 GW of new renewables projects at its Contracts for Difference Round Four (CfD4) auction which will open late next year.

The round will feature three pots for different technologies, which will all compete for 15-year government subsidies. The 12 GW capacity is over twice as large as 2019’s 5.8GW CfD3.

  • Offshore wind will have its own standalone ‘Pot 3’, in line with plans mooted during consultations on the round earlier this year.
  • ‘Pot 1’ will comprise established technologies including onshore wind and solar – marking the first time since 2015 these two technologies can bid for supports.

Scottish Renewables policy director Morag Wilson said the association welcomed the CfD scheme and its inclusion of onshore wind and the dedicated pot for offshore wind and support for innovative technologies such as floating wind.

Wilson added: “However, differences between Scotland and the rest of the UK need to be accounted for in all areas to ensure there is a level playing field for Scottish projects, particularly the disproportionate impact transmission charging costs pose for Scottish projects.

“Not addressing these disadvantages will hamper progress towards a geographically diverse energy system and reaching the level of deployment needed to achieve net zero.”

Solar Trade Association chief executive Chris Hewett said: “Today’s announcement opens the door to significant numbers of subsidy-free solar projects being developed over the next few years.

“Many responses, including our own, highlighted the merit of having more frequent auctions, and this is something that the Government must implement if it is to maximise the economic and climate potential of renewables.

“Large solar projects can be deployed rapidly, offering a swift, job intensive contribution to a green economic recovery.”

  • Next year’s auction will also be the first time floating offshore wind can compete.
  • Floating projects will be placed in a ‘Pot 2’ for less established technologies alongside Advanced Conversion Technologies and tidal stream.

Former coal stations converted to biomass generation will be excluded from the round.

“The UK is a world leader in clean energy, with over a third of our electricity now coming from renewables,” said UK Energy Minister Kwasi Kwarteng.

“That huge achievement is thanks to the government’s Contracts for Difference scheme.”

Kwarteng said CfD4 will build on the ‘Ten Point Plan’ for a low-carbon future that was outlined by UK Prime Minister Boris Johnson last week.

“The new plans…put us firmly on the path towards building a new, green industrial revolution,” he said.

The Government will meanwhile launch a fresh consultation on new proposals for the supply chain plan mechanism in a bid to boost local content levels.

The proposals are designed to increase the clarity, ambition and measurability of commitments made by renewable project developers when they bid for contracts in the CfD scheme, and to introduce new measures if they subsequently fail to deliver on those commitments.

“Next year’s renewable power auctions can unlock over £20bn of new investment in the economy and secure an unprecedented amount of low cost, clean electricity for consumers using the full range of renewable technologies we have available,” said RenewableUK chief executive Hugh McNeal.

McNeal welcomed the round’s inclusion of onshore wind.

“As one of our lowest cost, large scale power options, onshore wind has a vital role to play in meeting the challenge of net zero and the re-opening of CfD auctions is an important step to ramp up investment in this key technology,” he said.

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Onshore work starts for 3.6 GW Dogger Bank

Onshore work starts for 3.6 GW Dogger Bank

Subcontractor Jones Bros Civil Engineering has begun the first section of earthworks for the converter stations for the 3.6 GW Dogger Bank offshore wind farm.

The converter stations, south of Beverley in the East Riding of Yorkshire, will receive an AC current via the cables from the wind turbines and convert it to a DC current before sending it to the National Grid.

Jones Bros has also started ducting activities on the high voltage DC cable route from Ulrome to Beverley for the Dogger Bank A and Dogger Bank B projects.

Dogger Bank will be located more than 130km off the Yorkshire coast in the North Sea and is being developed in three 1.2GW phases by joint venture partners SSE Renewables and Equinor.

The project is the first wind farm in the world to use HVDC technology, due to its distance from shore.

The HVDC route comprises of 30km of ducting with trenches totalling 120km for ducting and cables.

Horizontal directional drilling is also taking place to install the cabling ducting beneath existing structures, including roads, railways, canals, common land and rivers with minimal disruption.

Jones Bros is also continuing to build access tracks, with 13km in place since the civil engineering contractor started on site earlier in the year.

The full works are expected to take two and a half years to complete. Jones Bros contracts director Garod Evans said: “We have more than 30 horizontal drills to carry out, which includes building a drilling pit to allow our supply chain partner Johnston Trenchless Solutions, also UK based, to operate.

“The horizontal drilling method will be used on multiple roads, canals, a river and a railway line to avoid unnecessary disruption.

“The team are also carrying out earthworks and drainage ahead of the installation of the convertor station platform where the cables will run to.”

Dogger Bank Wind Farm project manager Ollie Flattery said: “Jones Brothers have done a fantastic job getting project construction underway in such challenging circumstances, whilst ensuring those working on site, as well as the community in which they are operating are kept safe.

“We look forward to continuing working with Jones Brothers on the project in the months ahead as we develop the innovative infrastructure needed to provide clean energy for millions of UK households.”

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