Scotland-headquartered engineering companies firm Wood has led a joint trade undertaking to enhance data and understanding of how submarine cables have an effect on the marine atmosphere.

The research gathered key trade gamers together with EDF Energies Nouvelles, RTE, Bardot Group and DNV GL and it has spent the final yr creating a brand new set of trade pointers.

Submarine cables join renewable power sources reminiscent of offshore wind and wave and tidal energy tasks with the grid. However, it’s acknowledged that current pointers have been initially derived from the oil & gasoline trade and are extra suited in the direction of assessing the steadiness of pipelines.

Wood mentioned this anomaly “can lead to overly conservative designs with onerous suggestions and the necessity for costly stabilisation programs which may, in flip, jeopardise the monetary viability of recent tasks”, so the undertaking has developed a brand new set of trade pointers.

This new methodology, which is predicated on numerical fashions calibrated with laboratory assessments carried out within the wave and present basin of the Oceanide take a look at facility within the south of France, offers recommendation on assessing subsea cables on-bottom stability on rocky and non-smooth seabed.

This complete parametric description of the bodily mechanisms driving cables stability resulted within the implementation of a sophisticated methodology for on-bottom stability evaluation with a major acquire in conservatism in contrast with earlier requirements.

Bob MacDonald, chief govt of Wood’s Specialist Technical Solutions enterprise, mentioned the joint trade undertaking “has actually demonstrated the significance of trade collaboration. Our findings have acknowledged that there have been over-conservatism points however by working collectively we have now developed a brand new set of pointers which can in the end ship important enchancment of prices for each OPEX and CAPEX.”

Olivier de La Laurencie, St Nazaire offshore wind undertaking director at EDF Energies Nouvelles, mentioned the undertaking “contributes to enhance the competitiveness of the offshore wind sector and has offered a good enchancment on lowering the extent of the conservatism of the present requirements”.

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