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Floating Offshore Wind Dynamic Cables: Overview of Design and Risks

Report

Title: Floating Offshore Wind Dynamic Cables: Overview of Design and Risks
Author:
Marcollo, H.; Efthimiou, L.
Publication Date:
Pages:
36
Affiliation
AMOG Consulting, Moorsure, World Forum Offshore Wind (WFO)
Technology:
Wind Energy, Fixed Offshore Wind, Floating Offshore Wind
Language:
English

Document Access

Website:
External Link
Attachment:
Access File

Citation

Marcollo, H.; Efthimiou, L. (2024). Floating Offshore Wind Dynamic Cables: Overview of Design and Risks. Report by AMOG Consulting.
@techreport{Marcollo-2024-,
author = {Marcollo, H and Efthimiou, L},
title = {Floating Offshore Wind Dynamic Cables: Overview of Design and Risks},
institution = {AMOG Consulting},
year = {2024},
month = {feb},
url = {https://wfo-global.org/knowledge/reports/},
keywords = {Wind Energy, Fixed Offshore Wind, Floating Offshore Wind},
}
Export Citation to BibTex
TY - RPRT
TI - Floating Offshore Wind Dynamic Cables: Overview of Design and Risks
AU - Marcollo, H
AU - Efthimiou, L
AB - Global offshore wind installations are on track to reach 305 GW by 2030 and 480 GW by 2033.1 Countries increasingly see the offshore wind sector as a key facilitator of their long-term climate goals. Mature markets in Europe are planning more projects via auctions and new markets in Asia and the Americas are establishing regulatory frameworks for offshore wind. Relevant suppliers can look forward to growth opportunities; however, they will have to keep up with the evolving profile of offshore wind farms characterised by deeper waters and larger turbines. When it comes to subsea cables, major suppliers are upgrading their manufacturing capabilities and refining their business models by specialising in certain products and services.The subsea cables of future offshore wind farms have to achieve two main technology advancements: Higher voltages of inter-array and export cables Design optimization of dynamic inter-array and export cables for floating offshore windRisk mitigation in the design, manufacture and installation of subsea cables needs to be well demonstrated even though standards may not yet include higher voltage brackets and floating wind specifications. Insurers are particularly concerned with the technology readiness of cable systems given the consequence of cable failure as well as a history of issues at various bottom fixed wind farms.2 Damage repairs for a single cable can easily cost millions of euros in addition to the lost revenue caused by wind farm’s unavailability.3 As a result, developers are now facing a hardening market with a tightening of terms and conditions, limitations of cover, shrinking capacity for challenging placements and increasing rates for floating offshore wind.4As the industry works to prevent dynamic cable failure occurrence and downtime in case of failure, this White Paper will introduce the major floating wind cable specifications and their risks & mitigation measures, highlighting the importance of a holistic engineering approach that considers the impacts of the mooring system and maintenance solution on dynamic cable design.
DA - 2024/02//
PY - 2024
SP - 36
PB - AMOG Consulting
UR - https://wfo-global.org/knowledge/reports/
LA - English
KW - Wind Energy
KW - Fixed Offshore Wind
KW - Floating Offshore Wind
ER -
Export Citation to RIS

Abstract

Global offshore wind installations are on track to reach 305 GW by 2030 and 480 GW by 2033.1 Countries increasingly see the offshore wind sector as a key facilitator of their long-term climate goals. Mature markets in Europe are planning more projects via auctions and new markets in Asia and the Americas are establishing regulatory frameworks for offshore wind. Relevant suppliers can look forward to growth opportunities; however, they will have to keep up with the evolving profile of offshore wind farms characterised by deeper waters and larger turbines. When it comes to subsea cables, major suppliers are upgrading their manufacturing capabilities and refining their business models by specialising in certain products and services.

The subsea cables of future offshore wind farms have to achieve two main technology advancements: 

  1. Higher voltages of inter-array and export cables
  2. Design optimization of dynamic inter-array and export cables for floating offshore wind

Risk mitigation in the design, manufacture and installation of subsea cables needs to be well demonstrated even though standards may not yet include higher voltage brackets and floating wind specifications. Insurers are particularly concerned with the technology readiness of cable systems given the consequence of cable failure as well as a history of issues at various bottom fixed wind farms.2 Damage repairs for a single cable can easily cost millions of euros in addition to the lost revenue caused by wind farm’s unavailability.3 As a result, developers are now facing a hardening market with a tightening of terms and conditions, limitations of cover, shrinking capacity for challenging placements and increasing rates for floating offshore wind.4

As the industry works to prevent dynamic cable failure occurrence and downtime in case of failure, this White Paper will introduce the major floating wind cable specifications and their risks & mitigation measures, highlighting the importance of a holistic engineering approach that considers the impacts of the mooring system and maintenance solution on dynamic cable design.