Project Experience

Moray East Offshore Wind Farm

The Moray East Offshore Wind Farm is one of the largest renewable energy development projects in the UK, requiring precisely coordinated deliveries and installations. A key component of the project was the supply of 220 kV HV land cables, which were manufactured and tested at the TFKable facility in Bydgoszcz. These cables were then transported to the Scottish coastline using an innovative system of 270 rotating drums, ensuring safe and efficient delivery.

The Moray East wind farm aims to provide low-emission energy capable of meeting the average annual electricity demand of over 950,000 households in the UK. As part of this investment, JDR also supplied accessories for the offshore team responsible for terminations and testing, complementing the earlier delivery of 200 km of 66 kV cables and a range of termination accessories.

Moray East is a significant project, contributing not only to the growth of renewable energy in Scotland but also representing an important step towards sustainable energy transition, supporting the future of low-emission power generation in the region.

SeaMade Offshore Wind Farm

The production and delivery of 78 km of aluminium core inter-array cables and associated cable accessories for the SeaMade Offshore Wind project were completed in April 2020. The 487 MW project, the largest offshore wind farm funded and constructed in Belgium, required the use of specialised cables and a range of accessories, including repair joints and connectors. Once fully operational, the farm will supply renewable energy to 485,000 households in Belgium, while offsetting an estimated 600,000 tonnes of CO₂ emissions annually.

Hywind Tampen Offshore Wind Farm

JDR was selected to manufacture and supply 66 kV dynamic inter-array cables for the Hywind Tampen project. This project is the first in the world to power oil and gas platforms using floating offshore wind farms, presenting more technical challenges than traditional offshore wind farms with fixed foundations.

2.5 km of 66 kV dynamic inter-array cables connected 11 turbines in a loop, while two static export cables with dynamic ends, measuring 12.9 km and 16 km, were connected to the Snorre A and Gullfaks A platforms. The greater water depth (300 m) required cable accessories specifically designed to withstand higher water pressures. The cables were produced at JDR’s Bydgoszcz facility, and all cables and accessories were supplied from the Hartlepool plant, UK.

The wind power generated by the farm is expected to reduce emissions by 200,000 tonnes of CO₂ and 1,000 tonnes of NOx annually.

Hornsea Project Two

The South West Cluster of Hornsea Project Two consisted of 55 wind turbines and 1 offshore substation (OSS). It was the first project in the UK to use 66 kV inter-array cables.

A total of 110 km of 150 mm², 400 mm², and 630 mm² 66 kV cables were produced and delivered. These cables were equipped with JDR’s proprietary hang-offs and terminations, along with new, certified rigid cable repair joints, specifically designed to improve flexibility, enhance reliability, and reduce installation costs.

Offshore terminations were also supplied, and testing was carried out, including the installation of accessories and testing of the installed cables.

Once fully operational, the wind farm is expected to deliver clean energy to over 1.3 million homes.

WindFloat Atlantic – First Application of 66kV Technology for Floating Offshore Wind

JDR was selected to provide cables for the WindFloat Atlantic project in Portugal, the world’s first to apply 66 kV dynamic cables for floating wind turbines. JDR’s cables connected the semi-submersible platforms, each hosting an 8.33 MW turbine, using a unique dynamic cable breakaway system.

The project marked an important milestone in floating offshore wind technology and high-voltage transmission for offshore renewable energy, further showcasing JDR’s expertise in pioneering innovative subsea cable solutions.

Neart na Gaoithe (NnG) Offshore Wind Farm

JDR designed and manufactured 105 km of 66 kV inter-array cables and 3.5 km of interconnector cable, including a range of cable accessories, which were delivered in 2021. The wind farm covered an area of approximately 105 km².

The project has the potential to generate 450 MW of renewable energy, enough to power 375,000 Scottish homes – more than the entire city of Edinburgh – and reduce over 400,000 tonnes of CO₂ emissions annually. The inter-array cables connected 54 turbines, while the 3.5 km interconnector cable linked the two offshore substations, enabling the flow of electricity between them.

The cables and accessories were assembled and manufactured at JDR’s production facility in Hartlepool, UK.

Hohe See Offshore Wind Farm – 54.7km of Copper Core Inter-Array Cables

JDR supplied inter-array cables for the EnBW Hohe See offshore wind farm. The farm consisted of 71 wind turbines with a total capacity of 497 MW, covering an area of approximately 40 km² in the German Exclusive Economic Zone of the North Sea.

As part of the project, JDR delivered over 54.7 km of copper-core inter-array cables along with a range of accessories. The cables were manufactured at JDR's state-of-the-art facility in Hartlepool.

Once fully operational, the wind farm generated around 2 billion kWh of electricity annually, supplying 497 MW of power to 71 turbines. This energy powered approximately 560,000 homes and saved around 1.5 million tonnes of CO₂ each year.

Galloper Offshore Wind Farm – Powering 350,000 Homes

JDR was awarded a contract for the Galloper Offshore Wind Farm to supply 56 subsea inter-array cables, connecting 56 turbines to offshore substations. Located 27km off the Suffolk coast, the project will generate 353MW of renewable power. The cables were manufactured at JDR's Hartlepool and Littleport facilities.

Race Bank Offshore Wind Farm – Powering 400,000 Homes

JDR was selected to supply over 110km of 36kV inter-array cables for the Race Bank Offshore Wind Farm, located 27km off the Norfolk coast. This 580MW project, which will power 400,000 homes, includes a full range of subsea accessories designed and manufactured at JDR’s Hartlepool facility.

Hornsea One - Powering Over One Million Homes

JDR played a critical role in the Hornsea One Offshore Wind Farm, manufacturing and supplying 245 km of inter-array cables along with the necessary accessories. In addition to cable production, JDR provided installation and testing services, carried out by a dedicated team of 60 specialist technicians assigned to the project.

As the world’s largest offshore wind farm at the time of completion, Hornsea One set a new benchmark for renewable energy projects. With a total capacity of 1.2 GW, the wind farm is capable of powering over one million homes, highlighting JDR’s expertise in delivering cutting-edge subsea cabling solutions for large-scale offshore developments.

Aberdeen Bay – Scotland’s Largest Offshore Wind Test Facility

JDR supplied 66 kV inter-array and export cables for the European Offshore Wind Deployment Centre (EOWDC) in Aberdeen Bay. This 92.4 MW wind farm, Scotland’s largest offshore test facility, utilised JDR’s 66 kV technology for the first time, with delivery and installation completed by 2018.

JDR delivered 21 km of 66 kV inter-array cables and export cables with accessories for the project. These cables were used to transmit energy from the wind turbines to local onshore substations. Manufactured at JDR’s state-of-the-art facility in Hartlepool, UK, the cables were transported to Scotland for installation.