- World’s number two in offshore wind further strengthens its renewables business in the UK with 1.4GW Sofia milestone
- GE Renewable Energy’s Grid Solutions and Sembcorp Marine chosen as preferred suppliers of the high voltage direct current transmission system
- More than 50% of the components will be manufactured in local facilities, with extensive opportunities for the UK supply chain
09 July 2020
RWE has moved a step closer to the realisation of its 1.4 gigawatt (GW) Sofia Offshore Wind Farm with the selection of the preferred suppliers for the project’s high voltage direct current (HVDC) electrical transmission system.
A specially formed consortium of GE Renewable Energy’s Grid Solutions and Sembcorp Marine is set to supply the state-of-the-art system for Sofia, one of the world’s largest offshore wind farm projects, located on Dogger Bank, the shallow area of the central North Sea, 195 kilometres from the UK coast’s nearest point.
RWE is the UK's second largest generator of electricity. Via its subsidiary, RWE Renewables, the company has significant experience in the British offshore market with nine wind farms in operation off the UK coast and Triton Knoll (857 MW) under construction. Further offshore development projects, like Sofia – 100% owned by RWE – underline the growth ambitions of the company.
Sven Utermöhlen, Chief Operating Officer Wind Offshore Global of RWE Renewables, said:
“We are keen to support the growth of both onshore and offshore wind energy in UK, one of our core markets in Europe. The choice of GE’s Grid Solutions and Sembcorp Marine for the supply of the electrical system is an important statement of our commitment to grow our renewables portfolio in the UK and reflects our ambition to strive for continuous innovation in the development, construction and operation of our offshore wind farms.”
As the consortium leader, GE’s Grid Solutions will be responsible for the engineering, procurement, construction and installation of two HVDC converter stations capable of transmitting 1,400 megawatts (MW) of power at 320 kilovolts (kV). Innovative converter modules and a new high-tech control system have been deployed for Sofia. It will be the most powerful offshore converter station ever fabricated and will be installed at a point 220 kilometres from shore, so will also be the most remote.
The selection of the consortium is positive news for the UK as a significant element of all the primary HVDC equipment will be manufactured and fabricated at GE’s Grid Solutions’ Stafford facilities, which employ more than 1,000 workers.
Richard Sandford, RWE’s Director Offshore Development Europe, said: “It is a particular pleasure to announce the HVDC agreement for Sofia because it is such good news for the UK economy, particularly at this unprecedented time. More than 50% of the components will be manufactured in local facilities, securing jobs and boosting the economy.”
The project will be based on GE Grid‘s latest technology, utilising its second-generation voltage source convertor valve and featuring the first application of its state-of-the-art eLumina™ HVDC Control System. eLumina is the industry’s first HVDC solution to use a digital measurement system fully based on International Electrotechnical Commission (IEC) 61850, an important international standard defining communication protocols for intelligent electronic devices at electrical substations.
“We are delighted to be chosen as the consortium leader for Sofia Offshore Wind Farm,” said Raj Iyer, Grid Integration Leader at GE’s Grid Solutions. "This is recognition of our advanced technology, specifically our world-class eLumina HVDC Control System and second-generation converter modules, as well as our expertise in delivering this type of complex HVDC solution."
The offshore converter platform will be built and installed by Sembcorp Marine. At the heart of the wind farm, it will comprise a 10,000 tonne topside attached to a jacket foundation piled into the seabed. The onshore converter station will convert the electricity generated by the wind farm to 400 kV, before it enters the national grid.
“Sembcorp Marine is excited to team up with GE to support the Sofia Offshore Wind Farm project,” said Samuel Wong, Sembcorp Marine Head of Offshore Platforms. “We thank RWE for this opportunity and for their confidence in our track record of delivering offshore platforms to major field developments in Europe and Asia.”
GE’s Grid Solutions and Sembcorp Marine are starting early design works in July, with the full contract subject to the project’s final investment decision, due in the first quarter of 2021. The HVDC transmission system represents Sofia’s second largest contract and will include the design, manufacture, installation, commissioning and maintenance of the offshore converter platform and the onshore converter station, including all ancillary equipment.
Construction of the wind farm is due to begin onshore at its Teesside converter station site early next year, with offshore construction expected to get underway in 2023.
The HVDC transmission system news follows the announcement that Sofia has signed a preferred supplier agreement with Siemens Gamesa Renewable Energy for 100 of its SG 14-222 DD offshore wind turbines, a 14MW design that is 25 percent more powerful than its next largest model. For more information about Sofia visit: www.sofiawindfarm.com
About RWE Renewables
RWE Renewables, the newest subsidiary of the RWE Group, is one of the world's leading renewable energy companies. With around 3,500 employees, the company has onshore and offshore wind farms, photovoltaic plants and battery storage facilities with a combined capacity of approximately 9 gigawatts. RWE Renewables is driving the expansion of renewable energy in more than 15 countries on four continents. For further growth a net investment budget of €5 billion is available until 2022. When adding in possible partnerships, the medium term investment budget could reach up to €9 billion.
Sofia is the largest project in RWE Renewable’s current development portfolio with a generating capacity of up to 1.4 gigawatts (GW). The wind farm site is located 195 km off the coast of the North East of England and on the shallow central area of the North Sea known as Dogger Bank. Once operational, Sofia will be able to generate enough green energy to meet the electricity needs of almost 1.2 million average UK homes.
About GE’s Grid Solutions
Grid Solutions, a GE Renewable Energy business, serves customers globally with over 15,000 employees in approximately 80 countries. Grid Solutions helps enable utilities and industry to effectively manage electricity from the point of generation to the point of consumption, helping to maximize the reliability, efficiency and resilience of the grid. For more about GE Renewable Energy’s Grid Solutions business, visit www.gegridsolutions.com.
About Sembcorp Marine
Sembcorp Marine provides innovative engineering solutions to the global offshore, marine and energy industries. Headquartered in Singapore, the Group has close to 60 years of track record in the design and construction of rigs, floaters, offshore platforms and specialised vessels, as well as in the repair, upgrading and conversion of different ship types. Sembcorp Marine’s solutions focus on the following areas: Gas Value Chain; Renewable Energy; Process; Advanced Drilling Rigs; Ocean Living; and Maritime Security.
Sembcorp Marine’s customers include major energy companies, owners of floating production units, shipping companies and cruise and ferry operators. They are supported by four commercial units: Rigs & Floaters; Repairs & Upgrades; Offshore Platforms; and Specialised Shipbuilding.
Sembcorp Marine operates shipyards and other facilities in Singapore, Indonesia, the United Kingdom, Norway and Brazil.
Discover more at www.sembmarine.com
For media inquiries, please contact:Lothar Lambertz
+49 162 2845484
[email protected] Sue Vincent
+44 7768 508742
[email protected] Allison J. Cohen
External Communications, Grid Solutions
+972 54 7299742
[email protected] David Wong