O&M SOLUTION
COLLABORATION
An operations and maintenance (O&M) logistics study by Norwegian software simulation experts Shoreline, for Fred. Olsen Ocean, has found the use of an offshore accommodation
platform combined with fast in-field vessels will be key to maximising efficiencies for large, far-from-shore windfarms.
The O&M simulation was performed in collaboration with a major developer and based on the indicative layout of a 100, 200 and 300 turbine offshore wind project in the UK.
Three scenarios with different marine logistics combinations were modelled. The three base scenarios were…
1 A single service operation vessel (SOV) with on-board accommodation and access to a helipad
2 Two walk-to work-vessels (converted platform supply vessels) working alongside an offshore accommodation platform such as Fred. Olsen Windbase
3. Three large 30m crew transfer vessels (CTVs) working alongside an offshore accommodation platform such as Fred. Olsen Windbase
All three scenarios included the use of a helicopter for troubleshooting and additional CTVs over the summer period for scheduled maintenance.
MET OCEAN DATA
The met ocean data was taken from weather observations over 18 years – between February 1994 and January 2012 – so factored in seasonal changes, and included significant wave height and mean wind speed.
PHD PROJECT Shoreline employed its MAINTSYS software tool, developed in 2012 as part of a PhD project at University of Stavanger and the Norwegian Centre of Offshore Wind Energy (NORCOWE) and already adopted by several offshore windfarm developers for marine logistics modelling.
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www.windenergynetwork.co.uk
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