Scope of work
Muir Mhòr Offshore Wind Farm is located 65km east of Peterhead on the Aberdeenshire coast in Scotland. It is planned to be a fully floating windfarm developing 798MW of clean energy.
GM were requested to provide professional engineering and consultancy services for the Muir Mhòr project in relation to various ports and logistics options being explored for the execution phase. The scope of work was broken down into the following predefined work scopes:
- Floater Wet Storage Mooring Concept & Analysis
- Floater Integration Concept & Analysis
- Floater Tow-out & Hook-up Analysis
- On site Mooring and Anchoring Systems Overview
- Mooring and Anchoring Systems Storage and Mobilisation
- Optimisation of Potential Mooring and Inter Array Cable Synergies
- Floater Assembly, Marshaling & Integration Port Assessments
Challenges
- Early stage of project / very limited information
- Building up CAPEX estimates was challenging, projecting vessel day rates to 2030 and beyond
- Lack of freely available inshore metocean data meant key aspects such as Hs could not be considered for port ops such as WTG integration
- Information available from ports was high level and limited
- Challenging project timelines and milestones
- Project required input from many business streams. Coordinating these inputs required careful management.
Outcome
Reports were produced for each work scope to a very challenging schedule. This was a multidisciplinary project drawing on experience from Engineering, Marine Services, Geosciences, Marine Operations and Marine Warranty business streams. In-house software package, GM Opsim, was used to good effect to estimate likely weather downtime. Schedules and weather limits were created by drawing on practical knowledge from Marine Services, Marine Operations and Marine Warranty.
