BACKGROUND

Situated off the coast of Kent, Thanet has over 100 wind turbines, with a capacity
of approximately 300 MW of electricity, enough to power more than 200,000
homes with clean energy.

EDS`S INVOLVEMENT

• Design of cable protection/earthing
• Provision of materials
• 132/33kV terminations TP/OSP
• Client Representative for Subsea Joint and Land Joint

BACKGROUND

Greater Gabbard is a 500MW wind farm 23km off the coast of Suffolk. Officially opened in 2013, Greater Gabbard has the capacity power around 530,000 homes.

EDS`S INVOLVEMENT

• Design cable containment, protection, earthing, pulling heads, sub-sea seals
• Produce documents for: installation, HSE/QA, DPR, procedures
• Provide materials
• Client Representative, Commissioning Engineers
• Training
• Terminations and jointing 132/33kV, offshore and onshore

BACKGROUND

The 317MW Sheringham Shoal Offshore Wind Farm comprises of 88
wind turbines and generates around 1.1TWh per annum. This is enough
clean energy to power almost 220,000 British homes which compared to
fossil fuels is a reduction of 500,000 tonnes of CO2 emissions every year.

EDS`S INVOLVEMENT

• Cable terminations 132/33kV
• Containment
• Hang offs
• Project management
• Commissioning SAP

BACKGROUND

EDS are currently contracted to Vattenfall to provide management of their
High Voltage Network on a UK wide basis.

EDS`S INVOLVEMENT

EDS are delighted to be supporting Vattenfall across a number of areas,
including the following:

• High Voltage safety co-ordination from 33kV offshore assets to the 132kV OFTO interface
• Senior Authorised Person (SAP) and Control Person at 33kV and 132kV
• Training and subsequent authorisation of personnel up to SAP level
• Development & Implementation of Vattenfall Electricity Safety Rules
• Asset Management of 33kV High Voltage network including inter array cables, 33/.95kV
• Transformers, WTG switchgear and 33kV switchgear at the 132/33kV Offshore Substations
• Development of Risk Models and Asset Management Strategy for all HV assets
• Development of local procedures tailored to specifically support the Vattenfall Electrical Safety Rules
• Supporting Vattenfall in the assessment of HV design proposals on new projects across the UK

BACKGROUND

Rhyl Flats was constructed throughout 2008 and 2009 and generated its first green energy on 15 July, 2009. It became fully operational in December 2009 and is currently the largest operating renewable energy scheme in Wales and one of the most powerful offshore wind farms in the UK having 90MW capacity which is equivalent to providing power to about 61,000 homes.

EDS`S INVOLVEMENT

• 33kV fault repair
• Re-design of Subsea Joint to allow repair

BACKGROUND

A €2billion project, Gwynt y Môr consists of 160 turbines in Liverpool Bay, off the
North Wales coast.

EDS`S INVOLVEMENT

EDS secured the contract for the termination and testing of the inter-array cables
for 160 turbines at this site. In addition, EDS undertook containment design,
containment construction, cable-routing, termination design and testing.

Additionally, EDS made available the ability to build a life size transition piece mock-up facility in
the UK. This ensured a `right first time` approach, a clear step in reducing the cost of energy.


Click here for an introduction to Gwynt-y-Mor

EDSHV Group awarded termination and testing contract at Global Tech 1 Offshore Wind Farm

BACKGROUND

Global Tech 1 (GT1) is a 400MW offshore windfarm being built in the
North Sea in Germany. It is situated 180km away from the Bremerhaven
Emden in the North-West.

EDS`S INVOLVEMENT

The EDS contract award for this includes the termination and testing of
the inter-array cables for 80 turbines at this site. In addition, EDS is
contracted to undertake the cable protection, containment construction,
cable routing and terminations. EDS has made available the facility to design
and build life size transition piece mock-ups at our facility in the UK.
This ensures a `right first time` approach and is a clear step in reducing
the cost of energy.

EDSHV Group choosen for the Supply and Installation of 132kV cable sealing ends at two points within the electrical infrastructure and Commissioning and VLF testing of the completed works

BACKGROUND

Despite fierce global competition, EDS were selected to complete this contract
on the basis of cost, technical competency and experience. The real challenge
with this project was to carry out the works in such a manner as to not interrupt
the view on one of the resorts world leading golf courses.

BACKGROUND

EDS supplied Engineers were certificed by Sudkabel as part of this
contract win, further establishing us as truly global partners and exporters
of UK based energy services beyond Europe.

EDS`S INVOLVEMENT

Installation and Testing of 24 sets (72 individual items) of 132kV Outdoor Sealing Ends.

EDSHV Group carry out fault location and repiars at Barrow Offshore Wind Farm

BACKGROUND

EDS were approached by the developers of this site to carry out some
urgently required works in a very limited window of opportunity.

EDS`S INVOLVEMENT

The project involved several tasks.

• Fault location that caused the failure of a string
• The development of an acceptable recovery strategy
• The repair of the fault
• A health check on a spare cable length, should the existing cable require replacement

We carried out these tasks within the time constraints and provided a genuine
solution which saved both time and money for the developers. EDS has proved
that we are committed to providing the right solution the first time, every-time, on time.

Background

Teesside Offshore Wind Farm is located off the North East Coast near Redcar in Cleveland, and has been operational since 2013 with the capacity to generate up to 62.1 MW of low carbon electricity.

EDS’s involvement

EDS was selected from many by energy company EDF Energy Renewables (EDF-R), to provide the Technical and Safety Representative during the completion phase of this project. EDS was also awarded a three-year contract for operations and maintenance (O&M) management of the High Voltage Network at Teesside Offshore Wind Farm.EDS was awarded this contract following a competitive tendering process involving three other major players in the sector, and are responsible for the operations and maintenance (O&M) of the High Voltage Network at the windfarm, with Teesside under the remit of the EDS’s 24/7 Control Centre.

Tap Changer Maintenance

In 2018, as part of EDS’s planned preventative maintenance programme for the HV network, EDS HV successfully completed on-load tap changer maintenance work on Teesside’s 66kV/33kV generator transformers.

As industry experts will know, tap changer maintenance is a very complex and intricate operation and EDS were happy to provide the high level of skills that are required for such an operation.

Ryan Murphy, EDS’s Asset Manager said:

“Our planned preventative maintenance programme for the generator transformers at Teesside indicated that the condition of the oil within the tap changer compartments was deteriorating. EDF-R, recognising the criticality of their transformers were very proactive in bringing us in to carry out this work.”

“At EDS, we pride ourselves on having highly skilled resources in-house to carry out such tasks, enabling us to provide an excellent and efficient turnkey solution to the client.”

BACKGROUND

Lincs Offshore Windfarm is situated 8km off the east coast of England.
Consisting of 75 turbines, it was officially opened in 2013.

EDS`S INVOLVEMENT

EDS were once again selected on the basis of cost, competency and reputation
to provide the skilled Engineers to carry out the termination and testing of the 132kV
export cable on the OSP at this site. As a result of this work being carried out on
time and to budget, and as recognition of the dedication and experience of the people
involved, EDS was then invited to submit documentation to complete a string of turbines
to termination and testing level. This was required on an urgent basis as time was in
very short supply and the project, already running late was at risk of not hitting the
`turn on` date. We submitted the bid and were once again chosen as the partners
of choice for the task. The task was completed in the timescale submitted and as
a result of EDS intervention the `turn on` date was achieved. our performance was
described as `exemplary` and our approach as `prompt, accurate and succinct`.

BACKGROUND

Following the failure of a third party installed 33kV cable, EDS was
able to respond quickly and solve the problem within 2 days. EDS
immediately mobilised a team with the required materials drawn from
stock, purchased in and delivered to site quickly.

EDS`S INVOLVEMENT

Within 2 days the EDS team had removed the damaged section of cable
and fitted a replacement section utilising a straight joint, new terminations
and completed the re-energizing of the circuit, once again proving that EDS
is your only partner of choice.

BACKGROUND

Robin Rigg wind farm is located in the Solway Firth on the Scottish side of the Scottish/English Border. One of the first major offshore windfarms in the UK, it consists of 60 turbines that produce enough energy to power nearly 120,000 homes.

EDS`S INVOLVEMENT

From the first fault & emergency call, EDS were able to mobilise a team of experts and get to site within 12 hours. Initially offshore access to the substation platform wasn’t available due to poor weather, but as soon as they were able to get out, EDS quickly located the fault using their innovative new fault finding equipment in addition to traditional fault location methods.

Delighted to showcase their turnkey solution, EDS planned the job from start to finish in close liaison and with the consent of Transmission Capital (the OFTO) and E.on the owner of Robin Rigg Offshore Windfarm. After finding the fault they were able to excavate the area, source the materials quickly (an almost impossible task, but helped by the fact that EDS have excellent relationships with their suppliers), plan and carry out the repair, and then test before re-energisation. Remarkably, all this took place in just 12 days, despite the first 2 days being lost to poor offshore weather, and atrocious wet weather conditions for the rest of the time.

BACKGROUND

Kentish Flats Extension is on the southern side of the Outer Thames Estuary, located immediately adjacent to the Kentish Flats Offshore Wind Farm. The site covers an area of approximately 7.8km².

The existing wind farm has been operational since 2005 and consists of 30 x 3MW wind turbines. The extension has a maximum installed capacity of 49.5MW and comprises of 15 x 3.3 MW turbines.

EDS`S INVOLVEMENT

EDS were responsible for providing a full `safe system of work`. This included developing a set of Electrical Safety Rules, providing Senior Authorised Persons and Control Engineers and offering consultancy support. EDS also provided quality assessment and supervision of the onshore export cable installation.

The project was generating clean energy well ahead of schedule and EDS were instrumental in helping them to achieve this.

Background

Developed by E. On, the Rampion development, located off the Sussex coast in the UK, features 116 turbines each 3.45MW in capacity, giving the project a total generating capacity of 400MW, enough to power 350,00 homes.

Learn more key facts about the windfarm here: https://www.rampionoffshore.com/about/key-facts/

EDS’S Involvement

EDS were responsible for all of the offshore 33kV cable jointing, termination and testing work on the 116 turbine wind farm.

EDS successfully completed the termination and testing of all 116 assets as well as completing jointing activities on the offshore substation and on the two 150kV export cables. EDS also assisted with onshore commissioning activities.

Importantly, EDS were selected as a Tier 1 supplier, following a competitive tendering process, validating their standing in the marketplace as leaders in their field.

Ken Ritson, Group Managing Director of EDS said:

“We are proud to have successfully completed the scope of work, on target as per the programme. This is thanks to our dedicated, highly competent and experienced team who integrated themselves seamlessly with the Rampion team.

“We would like to thank Rampion for giving us the opportunity to play such a significant role and making such an important contribution to this project.”

EDSHV Group choosen by VBMS to carry out cable termination and testing at Blyth Offshore Wind Demonstration Project

Background

Blyth Offshore Demonstrator wind farm (BOD), located 5.7km off the North East coast currently comprises of 5 turbines, although it has consent for up to 15 turbines when fully constructed.

The BOD project has enabled owner and developer, EDF Renewables UK, to trial new technology and it is the first offshore wind farm to be built upon gravity-based foundations. Importantly, BOD is also the first offshore wind farm to use a 66kV cabling system. This is a critical development for the industry which will lead to more cost-effective power collection and transmission to shore, as well as being a crucial development in the push to continuously reduce the Levelised Cost of Energy (LCOE).

EDS’s Involvement

EDS were chosen by VBMS (now Boskalis) to carry out cable termination and testing at the EDF Energy Renewables (EDF ER) Blyth Offshore Wind Demonstration Project in Northumberland.

As the first in the industry to use 66kV cabling, use of this higher voltage required a much higher skill set and an experienced company such as EDS were the obvious partner.

EDS were able to provide the necessary expertise to complete 66kV terminations and testing on all 5 assets, along with fibre optic termination and testing.

Ken Ritson, group managing director of EDS said:

“EDS was delighted to be chosen to assist EDF Renewables UK in the commissioning of this landmark project. We believe that 66kV will quickly become the industry norm and we are pleased to offer the necessary level of competence and experience required to manage this change within the industry.”

Vattenfall Wind Power Ltd appointed EDS to provide HV health and safety consultancy during the construction phase of its first UK solar and wind project. EDS were responsible for overseeing HV infrastructure installation, commissioning, safe connection and energisation. Additionally EDS are delivering an HV consultancy and operations management service for the site providing creation of bespoke safety rules, advice and training in asset management.

The 4.99MW Parc Cynog Solar Farm, already included 11 wind turbineswhich had been in operation for 14 years. Co-locating with solar power makes technical sense as the wind and the sun tend to generate clean power at different times.

Background

Located 29 kilometres off Jutland’s west coast in Denmark and spanning a massive 88 square kilometre area, Horns Rev 3 will consist of 49 Vestas turbines and will have the capacity to generate 406.7MW, enough power to supply 425,000 Danish households annually.

Horns Rev 3 generated its first power on the 23rd December 2018, exporting power for the first time just in time for Christmas.

EDS’s Involvement

EDS HV Group has been appointed to act on behalf of Vattenfall at Horns Rev 3 (HR3) as high voltage (HV) consultants.

Under the scope of work EDS provided pre-site engineering support, HV system reviews, consultancy support, and the provision and implementation of HV safety rules from the 33kV switchgear on the offshore substation (OSS) to the arrays and turbines, in order to ensure safety from the system during planned work.

EDS was also involved in training Vattenfall’s O&M team, with a number of their technicians passing panels to become Senior Authorised Persons (SAPs), enabling them to safely and efficiently run their own network. 

Morten Jochimsen, Commissioning Manager at Vattenfall:

“The whole Horns Rev 3 project team from Vattenfall would like to thank the EDS team in helping make this landmark project a success. EDS HV’s support and knowledge has been valuable for the project and has helped us bring the wind farm alive, without compromising on HV safety. Big thanks to the onsite personnel who have done a great job, being flexible and always with a smile on their face.  I look forward to work with EDS again”.   

Horns Rev 3 was officially inaugurated back in August by His Royal Highness the Crown Prince of Denmark during a reception at the Danish port of Hvide Sande.  It is Denmark’s largest offshore windfarm and will increase Danish electricity generation from wind by over 10%.

David Orr, Operations Manager at EDS HV:

“The whole EDS team has enjoyed working with Vattenfall on this landmark project. It has been a fantastic opportunity, and the successful completion of our scope has been a credit to our team on the project and all involved. We would like to thank Vattenfall for their continued support throughout the project and look forward to working with them in the future.”

 Image: Vattenfall

Background

Vattenfall’s ground breaking battery storage (battery@pyc) project at Pen y Cymoedd, is the largest battery installation to date for Vattenfall, the Swedish energy group and is co-located with Pen y Cymoedd (PYC) wind farm. Connecting to its 33kV switchboard, the entire site can produce +/-22 MW for 15 minutes to provide enhanced frequency response and will be in continuous operation 365 days a year.

EDS’s Involvement

EDS were responsible for the electrical design review and grid consultancy of this project, providing a key role is what was a complex design for Vattenfall to meet the challenges of a project of this type. EDS produced the design and specification for the protection and operation of the 33kV switchboard, as well as undertaking the cable rating calculations on the Principal Contractor’s behalf. EDS also provided HV authorised staff, commissioning support and oversaw testing.

Luke Bishop, EDS’s Principal Engineer was there to witness proceedings and provide expert advice on key technical issues.

He said:

“EDS welcomed the opportunity to play a key role in this innovative Battery Storage Project. The complexities of the project meant that we had to provide some very clever engineering solutions. We are pleased to have made such an important contribution to a project that is so ground breaking within the industry”

Background

The Formosa 1 Offshore Wind Farm, a joint venture of Ørsted (35%), JERA (32.5%), Macquarie’s Green Investment Group (25%) and Swancor (7.5%), is located in Miaoli County, Taiwan. It is Taiwan’s first commercial-scale offshore wind farm of 128MW installed capacity.

EDS Involvement

High voltage (HV) engineering specialist EDS HV Group (EDS), part of the UK’s leading marine services company – James Fisher and Sons plc, has completed electrical safety commissioning and consultancy work at Formosa 1 (Phase 2) Offshore Wind Farm, providing skills to local people enabling them to safely and efficiently run their own HV network.    

EDS’s safety rules were adapted and translated from English to Mandarin, before being applied to the offshore and onshore high voltage networks. Supported by a translator, EDS implemented a safe system of work and trained people under the new safety rules to various levels of authorisation, including control engineers, 161kV SAPs and 33kV Wind Turbine Generator (WTG) SAPs.

David Orr, Operations Manager at EDS HV:

“It has been a privilege for EDS to be involved in this landmark project – a major step in Taiwan’s renewable energy ambitions. The successful completion of our work scope is a credit to the EDS team involved, who faced many challenges throughout, including the language barrier, cultural barriers and the difficult climate in which we had to work.  Sharing our knowledge and experience and being able to train the local Taiwan operations and maintenance team will aid the operation and the sustainability of the site.

From start to finish, the whole team and I have been taken aback by the friendliness and the welcome we have received. Thank you to them and to the Formosa 1 Team.”

The successful completion of this project marks a significant step forward for the company, and cements EDS as truly global players in offshore wind.

Background

ELIA`s Modular Offshore Grid (MOG)  is a first-of-its-kind offshore grid connection project in the Belgian waters of the North Sea. By acting as a central hub, the MOG reduces the number of exports required to connect multiple new wind farms to the Belgian onshore grid to just three, providing not only cost benefits but also a greater security of supply: if one of these important cables fails or is faulty, the wind farms will still feed its renewable, clean energy into Belgium’s grid. EDS’s experience, professionalism and expertise ensured that what could have been a complex process ended up being a smooth-running and efficient project for the client.

Strategically important to Belgium’s renewable industry, Elia MOG marks the first step towards an offshore super-grid. The innovative solution will initially connect four (Rentel, Seastar, Mermaid and Northwester 2) new offshore windfarms when full-fledged operations commence in 2020, however its modular design pre-empts the aspiration to connect to more sites in the future.

EDS`s involvement

High voltage engineering specialist, EDS HV Group (EDS), has completed testing, jointing and terminations for ELIA’s modular offshore grid (MOG). Sub-contracted by the cables manufacturer, Hellenic Cables S.A., EDS performed the works on behalf of EPC contractor, DEME Group, and completed testing to establish a connection between the MOG’s offshore submarine cables and the onshore cables at the ELIA operated Stevin 380kV substation in Zeebrugge, helping to contribute to Belgium’s target of 4 GW to be installed by 2028.

EDS’s experience, professionalism and expertise ensured that what could have been a complex process ended up being a smooth-running and efficient project for the client.

Ioannis Stergiou, senior project manager at Hellenic Cables, said:

“I would like to thank EDS and its team for their commitment, hard work and determination. For both the clients, and Hellenic Cables, this result is of high importance as the MOG project plays a vital role for Belgium’s energy plan.”

EDS, part of the UK’s leading marine services provider –James Fisher and Sons plc, completed a range of services including the preparation of two onshore transition joint bays with clean working habitats to help connect specialised 245kV cable joints with integrated fibre-optics. Following this major technical feat, the company completed the safe connection of three 245kV HV and FO cable end terminations to the MOG and one to the substation of the Rentel offshore wind farm.

Ken Ritson, group managing director at EDS, said:

“We have relished the opportunity to work on ELIA’s innovative modular offshore grid, and it’s great to have the chance to see first-hand how the industry is working to make the installation of new sites more sustainable and efficient. Once again, we’re pleased to say EDS teams worked successfully to the highest industry standards.”

Background

Hohe See is a 497MW offshore wind farm Located in German North Sea waters. With a capacity of 497MW it`s expected to generate approximately two billion kilowatt-hours of renewable electricity a year, enough to power 560,000 homes.

EDS`s involvement

High voltage engineering specialist, EDS HV Group (EDS) has successfully completed installation, termination and testing work for cable manufacturer Zhongtian Technology Submarine Cable Co., Ltd. (ZTT) on the EnBW Hohe See project.

EDS, which is part of the UK’s leading marine services company – James Fisher and Sons plc, helped to establish a cable connection between Hohe See, a 497MW offshore windfarm in the German North Sea, and the high-voltage direct current (HVDC) offshore grid system BorWin3 developed by TenneT.

Javis C. Sim, Global Head Business Development at ZTT, said: 

“The complex TenneT Hohe See project and journey ended on a high note of a job well done for all of the proficient partners, including EDS in delivering the expected”

Following the completion of onshore works earlier this year, EDS has now completed offshore installation, termination and testing of the platform cable, which demanded the high levels of skill and professionalism expected by the complex offshore wind industry. 

Paul Ayre, project manager at EDS, said: 

"We are proud to have successfully completed our offshore scope of work on this project, bringing the job to completion following our onshore scope last year. EDS integrated seamlessly with the other teams on the project and we were pleased to share our expertise and experience.”

Background:

Haringvliet Zuid, a project comprising six 3.6MW turbines, a 30-hectare solar park with 30MW and a battery storage facility, expects to feed the grid with a combination of wind, photovoltaics (solar) and battery stored power. This combination will provide a constant supply of renewable energy, promising increased efficiency per hectare and less pronounced generation peaks.

EDS`s Involvement:

EDS, which is part of the UK’s leading marine services company – James Fisher and Sons plc, were called upon to provide expert consultancy to the battery system, initially creating outline designs for the project tender phase and authoring the electrical sections of Vattenfall’s tender specifications and operational capability. 

Luke Bishop, group engineering director at EDS HV Group, said: 

“We were pleased to support Vattenfall on this innovative project at such an early stage and to use our skill set to progress this important technology within the renewables industry. Frequency response is the missing piece of the puzzle when it comes to renewable energy and to work on a project such as this one is a privilege. We look forward to working with Vattenfall and the wider industry on this essential part of the energy mix”.

Vattenfall is investing a total of 61 million euros in the project, and the photovoltaics element constitutes Vattenfall`s largest solar installation to date.