Turner & Townsend

Turner & Townsend provided project performance assurance and project controls support for TenneT’s high-voltage grid connection programme for the Hollandse Kust Zuid (HKZ) offshore wind farm. The assignment related to the delivery of two 700 MW offshore HVAC connections, comprising the 66 kV to 220 kV transformer platforms known as HKZ Alpha and HKZ Beta, which enable power export from the wind farm to the Dutch onshore transmission network. TenneT engaged Turner & Townsend to help maintain programme milestones during the fabrication phase, addressing schedule and quality risks and providing progress monitoring, progress measurement and verification. The scope included project management and project controls advice, and independent oversight of fabrication progress to support readiness for key milestones such as Ready For Sail Away (RFSA) and subsequent transport and installation commitments. Working at the fabrication site in Dubai, Turner & Townsend collaborated with TenneT’s EPCI contractor and mobilised a joint task force of planning, project controls and quantity surveying specialists. The team used 3D model-based quantity analysis to develop a bill of quantities and a measured-quantity progress measurement system, supported by dashboard reporting. Remote monitoring tools were also used to track fabrication and support oversight of the offshore hook-up and commissioning phase.