1、 Author:Joel Maisey,Tania Fernandez,Lee Martin,Haydn Purnell,Hashim Amjad,Toby Gard Date:14/02/2025 Reference:PN000658-RPT-007 Status:Public In partnership with:FLOATING OFFSHORE WIND CENTRE OF EXCELLENCE DC02-SUBSEA VS FLOATING SUBSTATIONS PUBLIC REPORT DC02-Subsea vs Floating Substations Public Re
2、port 14-Feb-2025 ORE Catapult Public 2 PN000658-RPT-007 Rev 3 DISCLAIMER Whilst the information contained in this report has been prepared and collated in good faith,ORE Catapult makes no representation or warranty(express or implied)as to the accuracy or completeness of the information contained he
3、rein nor shall we be liable for any loss or damage resultant from reliance on same.DOCUMENT HISTORY Revision Date Prepared by Checked by Approved by Revision History Rev 1 17-Jan-2025 TG/LM/HP JM CSM Issued for review Rev 2 05-Feb-2025 LM JM CSM Issued for use Rev 3 14-Feb-2025 JM JM CSM Issued for
4、use DC02-Subsea vs Floating Substations Public Report 14-Feb-2025 ORE Catapult Public 3 PN000658-RPT-007 Rev 3 EXECUTIVE SUMMARY The offshore wind sector is transitioning from fixed to floating wind farms at a GW scale,necessitating an understanding of substation selections technical and economic im
5、plications.This study aims to inform developers on supply chain engagement and substation delivery,focusing on HVAC floating and subsea substations.Inter-array and export cables are outside the scope of this study but have been considered at a high level when required.Subsea Substations The greatest
6、 benefit of the subsea substation is the lack of requirement for dynamic export cables and the standardisation of the design,enabling an almost cookie-cutter approach.Transformer size impacts the cables architecture,export cable quantity,and cross-sectional area(CSA).Subsea substations require less
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