Company Name Orsted
Project Location Hornsea Offshore Windfarm Zone
Project Description
  • Provision of Survey Manager/Deputy Project Manager to Hornsea 03 and Hornsea 04 development projects (March 2018 to July 2020)
  • Provision of Offshore Supervisors to HOW02 (GP2b) 2019 and HOW04 (GP1c) 2020

Hornsea 3

Location: Hornsea 3 is located in the North Sea, approximately 120 km off the Norfolk coast and 160 km off the Yorkshire coast.

Size: Up to 231 offshore wind turbines will be located within a 696 km2 area.

Power output: The wind farm will be capable of generating at least 2.85 GW of green electricity, enough to meet the average daily needs of well over 3 million homes.

‘Hydrofix have supported Ørsted’s HOW04 OWF site development with a range of services including provision of Survey Operations Management, Offshore Site Supervision and data QC.  Hydrofix’s personal and collaborative approach together with their technical expertise has ensured that the site investigation survey campaigns have run smoothly, and have achieved Ørsted’s industry leading data quality requirements.’

Trier Pedersen, HOW04 Site Investigation Project Manager.

Project Scope:

  • Provision of Survey Manager/Deputy Project Manager to Hornsea 3 and Hornsea 4 development projects between March 2018 and July 2020.
  • Provision of Offshore Supervisors (Client Representation) for Hornsea 2 and Hornsea 4 geophysical survey campaigns in 2019/2020.
  • Further to the original project remit, Hydrofix also provided survey consultancy to support the Ørsted HOW02 and BSW02 projects.

Responsibilities and Services Encompassed:

  • The project responsibilities and services delivered included managing technical, commercial and HSE aspects.
  • Project management & geophysical technical support to the Site Investigation Project Manager and Technical Lead
  • Contract management of site investigation surveys (geophysical, geotechnical, UXO) including scope of work preparation, tender evaluation & award and Contractor QHSE document review and implementation
  • Management of Offshore Supervisors
  • Contractor survey data, report QA and sign off
  • Support to environment, consent and commercial teams for licence applications
  • Support to fisheries liaison team
  • Developing new strategy of collaborative site occupancy reducing the expenditure on fisheries clearance
  • Survey consultancy supporting other Ørsted projects (HOW02 / BSW02)
  • Provision of Offshore Supervisors


Project Benefit:

Hydrofix contributed to the successful execution of the Hornsea 3, Hornsea 4 development projects through the provision of a Survey Manager/Deputy Project Manager and Offshore Supervisors.

Our comprehensive project management and geophysical technical support ensured seamless coordination and oversight.

Our expertise in contract management streamlined the site investigation process, ensuring compliance and mitigating risks. Meticulous quality assurance and sign-off procedures provided our Client with reliable data for informed decision-making.

Beyond technical aspects, Hydrofix supported license applications, fisheries liaison, and developed innovative strategies for collaborative site occupancy, optimising project costs and maintaining positive stakeholder relationships.

Using Hydrofix’s multidisciplinary expertise and industry-leading practices, we enabled our Client to navigate project complexities successfully while prioritizing safety, sustainability, and operational excellence.