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Europe’s largest contract for offshore wind turbines announced by ScottishPower Renewables and Siemens as Final Hurdle Cleared for East Anglia ONE


  • The agreement  is believed to be Europe’s largest wind turbine contract for a single project
  • Low Carbon Contracts Company confirms “significant contractual milestone” achieved
  • 75m-long blades to be manufactured in Hull

At the Iberdrola Q1 financial results presentation in Madrid today (Wednesday 27th April), Chairman Ignacio Galán confirmed that ScottishPower Renewables has concluded a major deal with Siemens, which will see 102 wind turbines supplied for the East Anglia ONE offshore windfarm. The contract, including a 5-year service agreement, will be worth up to one-third of the overall £2.5 billion project investment.

The agreement comes on the same day that the Low Carbon Contracts Company confirmed that Contract for Difference (CfD) milestones have been fulfilled, ensuring that East Anglia ONE will be the best value offshore windfarm to go in to construction anywhere in the world.

East Anglia ONE will utilise 102 turbines, each with a capacity of 7 megawatts (MW), which in total will power more than 500,000 homes every year*. With the CfD milestones achieved and confirmed by the Low Carbon Contracts Company, the project will be delivered at a price of £119/MWh, a cost reduction of 20% compared to other offshore wind farms that have been built in the UK.

The 75 metre long turbine blades are planned to be fabricated in Siemens’ new factory in Hull, and £5 million is set to be invested in Great Yarmouth Harbour, which will act as the pre-assembly port for the installation of the turbines.

The turbine agreement is the largest individual contract placed as part of the £2.5 billion project, and will help to support many of the 3,000 jobs that the project aims to create during construction.

Ignacio Galán, Iberdrola and ScottishPower Chairman, said: “Offshore wind power is a vital component in global efforts to help to deliver the binding agreement achieved by more than 170 countries at the COP21 meeting in Paris and signed last week in New York. As a worldwide leader in renewable energy, we have always focused on clean technologies that are competitive enough to deliver real energy solutions. Offshore wind works. We have seen this in our highly efficient West of Duddon Sands project, and cost reductions are already benefiting the delivery of our Wikinger project being constructed in Germany. East Anglia ONE will raise the bar further, as technology matures and expertise in the supply chain increases. We see huge potential globally for offshore wind, and we will continue to lead the industry in driving down costs.”

Keith Anderson, CEO of ScottishPower Renewables, said: “We have concluded Europe’s largest project-specific wind turbine agreement just a month after taking our final investment decision, and we have scaled the final hurdle by satisfying our CfD conditions with the Low Carbon Contracts Company. It is now full steam ahead for East Anglia ONE, with ground set to be broken early next year.

“East Anglia ONE is the first of up to four projects we would like to build in the Southern North Sea, and we hope that our plans will stimulate jobs and investment for the UK and across the region for decades to come.

Low Carbon Contracts Company CEO Neil McDermott, said: “The milestone requirement is a key obligation under the CFD and we look forward to working with East Anglia ONE to deliver this landmark project.”

Michael Hannibal, CEO Offshore of the Siemens Wind Power and Renewables Division, stated: "Siemens is delighted to work with ScottishPower Renewables on East Anglia ONE offshore wind power plant. This also represents the largest single order ever for our direct-drive, 7-megawatt wind turbine. The decision to go with our innovative wind turbines underscores the contribution made by these units to reducing the costs of offshore wind power."

ScottishPower Renewables is delivering a large cut in the cost of offshore wind power through East Anglia ONE, with a cost of electricity set at £119/MWh after a successful bid in the competitive UK Government auction. This cost reduction has been made possible by ScottishPower Renewables’ use of advanced technology, such as these larger and more efficient turbines.

ScottishPower Renewables and Siemens worked successfully on their first joint offshore project, the 389 MW West of Duddon Sands Offshore Windfarm in the Irish Sea. Construction work on ScottishPower Renewables’ second offshore windfarm, the Wikinger project in the German Baltic, is currently underway, using 5MW ADWEN turbines.

* Calculated taking the number of megawatts (714) multiplied by the number of hours in one year (8,766), multiplied by the average load factor for offshore wind for 2014 (most up to date figure available) (34.88 %, published by the Digest of United Kingdom Energy Statistics), divided by the average annual household energy consumption

Notes to Editors:

The Siemens SWT-7.0-154 turbine:

  • Nominal power: 7 megawatts (MW)
  • Rotor diameter: 154 metres
  • Blade length: 75 metres
  • Swept area: 18,600 metres
  • Tip height: up to 190 metres

About East Anglia ONE:

East Anglia ONE will see 102 wind turbines installed in the southern North Sea, approx. 30 miles off the coast. The overall investment will be in the region of £2.5 billion, and the project is planned to meet the annual electricity demands of the equivalent of 500,000 homes.

Construction is planned to commence in 2017, with the first turbines installed by 2019, and hopes that the project will be fully operational during 2020.

East Anglia ONE Offshore Windfarm project is likely to include:

  • Offshore wind turbines and foundations (102 wind turbines to provide an installed capacity of 714 megawatts).
  • An offshore substation to collect the electricity from the turbines and transform it to a form suitable for transfer to shore.
  • Two offshore export cables, each around 85 km in length, to transfer the electricity to shore.
  • A landfall site with onshore transition pits to connect the offshore and onshore cables.
  • Six onshore underground cables, each of around 37 km in length, to transfer the electricity from landfall to an onshore converter station.
  • An onshore substation adjacent to the existing substation at Bramford, Suffolk, to connect the offshore windfarm to the National Grid.