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island crown to support construction at East Anglia One

Island Crown to support construction at East Anglia ONE
Island Crown to support construction at East Anglia ONE

A state-of-the-art vessel that allows workers on the East Anglia One Offshore Windfarm to effectively ‘walk to work’ was been contracted by Siemens Gamesa Renewable Energy on behalf of ScottishPower Renewables.

The service offshore vessel (SOV), named Island Crown, will provide comfortable living conditions adjacent to the site located 43km off the Suffolk coast by enabling some 40 personnel involved in commissioning the windfarm to live offshore for up to two weeks at time.

The vessel was mobilised to Great Yarmouth on June 11 and is being provided by Island Offshore. The contract duration is for 275 days with an option for a further 90, providing work for the vessel until the summer of 2020.

It will supplement the daily crew transfers that already take place and increase efficiency on the major infrastructure project.

Charlie Jordan, ScottishPower Renewables Project Director for East Anglia ONE, said: “We’re delighted to secure the services of Island Crown through Siemens Gamesa. Given the scale of works involved, this vessel will provide comfortable living conditions, safe access to the 102 Wind Turbine Generators and more efficient working as we look to bring East Anglia ONE on line as quickly and safely as possible.

“The windfarm will soon be producing clean, renewable energy for the UK, helping to meet the nation’s bold carbon reduction targets and this contract award is another significant part of that journey.”

Andrew Elmes, Project Manager for Siemens Gamesa, said: “We are delighted to be able to bring on the Island Crown to support our wind turbine installation contract on the East Anglia ONE project.  This builds on the highly positive experience SGRE has had to date with the vessel and allows us to provide a familiar, safe and comfortable working environment for our commissioning teams.  Given the new High Voltage technology on this project, working alongside our customer on this SOV will allow better collaboration in the commissioning phase, increasing the effectiveness of our offshore work to get the turbines on line more quickly.”

Håvard Ulstein, Managing Director in Island Offshore Management AS, said: “We are very pleased to have secured more work for Island Crown with Siemens Gamesa. This new contract provides stability both for our crew and for us as owners, as well as saved time in terms of familiarisation for both Island Offshore and Siemens Gamesa.  For the past 11 months Siemens Gamesa has proved to be an excellent charterer and collaborating partner, and we look forward to continue our good relationship with the company.”

Construction is already under way at ScottishPower Renewables £2.5bn East Anglia ONE offshore windfarm, located 43km off the Suffolk coast. It will see 102 Siemens Gamesa turbines deployed each with a capacity of 7 megawatts, which could in total provide enough clean energy to power the equivalent of more than 630,000 homes annually.

East Anglia ONE is the first of four offshore windfarms ScottishPower Renewables is developing in the region.

The Island Crown has performed walk-to-work services at oil, gas and wind installations since delivery in 2013. The vessel is 96.8 meters long and 20 meters wide with accommodation for a total crew of 100 persons on board. It is equipped with a gangway system, subsea crane, large tank capacity and a cargo deck area of 561m2. It also comes with a helicopter platform allowing faster transfer of technicians if required.



For more information, please contact;

ScottishPower Renewables

Stephanie Todd, UK Media Manager ScottishPower
Tel. 0141 614 4583.

Siemens Gamesa

Andrew Elmes

Senior Project Manager - East Anglia ONE Offshore Wind Farm                                                          

Mobile: +44 (0)7921 245193

Island Offshore Management AS

Håvard Ulstein, Managing Director
Tel. (47) 70 40 00 21


Marianne Hovden, Communications Manager
Tel. (47) 70 40 00 60

Notes to Editors

About East Anglia ONE:

East Anglia ONE will see 102 wind turbines installed in the southern North Sea, approximately 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 almost 630,000 homes*.

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.

*Based on the following calculation: 714 MW (installed capacity) x 0.3836 “offshore wind” average load factor (Digest of UK Energy Statistics) x 8,766 hours (hours per year)/3,781MWh (average domestic annual consumption) = 634,997 homes powered equivalent

About ScottishPower Renewables

ScottishPower Renewables is part of Iberdrola, a world leader in clean energy with an installed capacity of over 28,000MW, and the leading wind energy producer worldwide. 

Responsible for progressing Iberdrola’s onshore wind and marine energy projects in the UK, ScottishPower Renewables also manages the development, construction and operation of offshore windfarms throughout the world and currently has 40 operational windfarm sites producing over 2,000 MW.

About Island Offshore

The Island Offshore Group is currently operating a fleet of 25 vessels operating on a worldwide basis. The fleet segments ranges from Platform Supply, Walk-to-work, Anchor Handling, Subsea Construction to Well Stimulation and Light Well Intervention vessels. In addition, the Group has one deep water installation vessel under construction.



Island Wellserver continues working for Equinor
Island Wellserver continues working for Equinor

Island Offshore and TIOS will continue as supplier of light well intervention services (LWI) for Equinor, with a new agreement signed for the use of Island Wellserver. The vessel has been working for Equinor, former Statoil, since April 2009, and by commencement of the new contract in 2020 Island Wellserver will be into its twelfth year for the same client.

The new agreement implies that Equinor extends the existing contract with one year, with options for 3x1 additional years.This will give Island Wellserver continuous work for a minimum of 200 days a year, equivalent to today’s contract.

“The last few years have really put us to the test, but as owner and operator within light well intervention we have asserted that this segment is viable. This contract proves that our services are needed,” states Managing Director of Island Offshore Management AS, Håvard Ulstein.

“We are very pleased to obtain renewed trust with Equinor, and we are confident that we will keep the vessel in operation for more than 200 days a year on the Norwegian continental shelf.”

In 2018 Island Offshore and TechnipFMC entered into a strategic collaboration agreement to deliver RLWI services on a worldwide basis. At the same time TechnipFMC acquired a 51% stake in Island Offshore’s wholly owned subsidiary, Island Offshore Subsea AS. This company is now named TIOS AS and is the contracting party with Equinor, while Island Offshore is the supplier of vessel with maritime crew.

Vessels for light well intervention, also called mobile offshore units (MOU), are important tools to increase the recovery from oil wells in service. Not only are they safer, but they are also more efficient and cost-effective than conventional rigs. Since the start-up Island Wellserver has carried out more than 250 well interventions!

Island Offshore also owns and operates the two MOUs Island Frontier and Island Constructor.


For more information, please contact Island Offshore Management AS:

Håvard Ulstein, Managing Director

Tel. (47) 70 40 00 21 E-mail:


Marianne Hovden, Communications Manager

Tel. (47) 70 40 00 60 E-mail: