Works included:

• Constructing 49 reinforced concrete foundations, excavating, and backfilling for cabling
• Creating 24km of access tracks and upgrading a further 20km to allow for turbine and transformer delivery
• Enabling works which included construction of the SP Energy Networks (SPEN) substation platform and construction compound
• Installing more than 300,000m of 33kv cable and more than 100,000 of fibre cable

For further info on this, please click here North Kyle Wind Farm.

Works included:

• Landfall substation design and build containing nine bays, ancillary buildings, and transformer bays
• Sustainable drainage systems (SuDS), which featured a surface water drainage system that included an attenuation pond and flow restriction devices to meet agreed discharge rate
• Onshore connector cable route design and build comprising 6.4km of trefoil ducting, 132kv cable installation, and 11 joint pits
• Extensive traffic management including road closures and diversions
• Horizontal directional drilling (HDD) in rock including watercourse crossings
• Grid connection substations

For further info on this, please click here Morlais Onshore Electrical Connection Package.

Covering 515km², Dogger Bank A is approximately 131km from shore at its closest point, as is Dogger Bank B, which covers 599km².

Jones Bros was engaged to commence with preliminary design work for a fully ducted system for the installation of both high voltage DC (HVDC) and AC (HVAC) cables. This was in conjunction with further design activity.

Works included:

• 12 access points / junctions off the highway network allowing access to the site
• Three main site compounds and five satellite compounds
• 32km of on-site temporary trackway to all access along the full length of the works corridor
• New post and pre-construction land drainage
• 46 crossing points over existing open ditch land drains and water courses
• Horizontal direction drills at 34 crossing points
• Joint bay design for both HVDC & HVAC circuits including link boxes and the landfall transition joint bay
• Convertor station working platform
• Early engagement with third party service assist operators including Network Rail, internal IDB, landowners, and agents

In addition to the offshore works, there were a number of other major activities undertaken to connect the renewable energy to the National Grid including:

• Installation of 120km of HVDC cable from landfall near Ulrome across a 30km route though agricultural land
• Construction of two DC to AC convertor stations
• Installation of 24km of HVAC cable from the convertor station across a 2km route before terminating into the National Grid substation at Creyke Beck substation near Cottingham

For further info on this, please click here Dogger Bank Wind Farm.

The 4,600 hectare site is located on the A4061 Rhigos Road near Treherbert in the South Wales valleys.

Works included:

• Design and construction/upgrade 80km site access tracks.
• Construction of new S278 highway entrance
• Engineered upfill works to all turbine foundations.
• Construction of 76 concrete turbine and crane pad foundations – using 6000tonnes of locally sourced steel reinforcement and 50,000m³ concrete produced by our own on-site batching plant.
• 8 borrow pits on site – 750,000t of processed aggregate for on-site tracks
• 120km of cable trenching
• Electrical design and installation
• Landscaping and reinstatement

For further info on this, please click here Pen y Cymoedd Windfarm infrastructure, South Wales.