Offshore Construction Start

Offshore construction for the North Hoyle Offshore Wind Farm began in April 2003, marking the transition from development and onshore preparatory works to full-scale marine installation at the project site in Liverpool Bay off the North Wales coast. This step followed regulatory consents issued in 2002 and earlier activities including site investigations and Environmental Impact Assessment work carried out in 2001–2002. At this point the project was moving to realise a 30‑turbine, 60 MW commercial‑scale offshore wind farm located approximately 6–7 km off Rhyl, using monopile foundations, transition pieces and Vestas V80 turbines with buried export and inter‑array cabling. The OSPAR case study records that overall construction started in April 2003, with a structured programme of offshore works continuing through the year. Wind turbine foundations were installed between April and July 2003, followed by transition pieces from July to August. Export cable installation ran from August to October 2003, while turbine erection progressed from August 2003 through March 2004, and intra‑array cabling was laid between September and December 2003. These coordinated campaigns meant that offshore civil, electrical and turbine installation activities overlapped through late 2003, enabling the project to achieve first power generation in November 2003. According to the developer-sourced milestone summary, turbine commissioning then continued from November 2003 to April 2004, leading to full operation in April 2004. Thus the April 2003 start of offshore construction represents the key milestone when North Hoyle moved from planning and onshore enabling works into active marine construction, ultimately delivering the UK’s first commercial‑scale operational offshore wind farm within roughly one year of offshore works commencing.