We often get questions about the industry's exposure to cable failures. To address this, we have created the Portunus Cable Calculator. Publicly available data and studies feeds into this tool, to quantify the theoretical exposure to cable failure that currently exists in the industry.

This is the first version (v.1) and we aim to enhance this tool on an ongoing basis.


The calculator is populated with default numbers from our sources, feel free to manipulate any of the data fields to match the specifications of your current or projected fixed bottom offshore wind park.

Missing any features in this tool? Contact us here: info@portunus.uk

To arrange a call to learn more about how the PSS can reduce your exposure to cable failure, saving you time, money and environmental impact, connect with our team here

Sources & References

As a reminder, we are of the view that ~90% of cable failures as reported by ORE Catapult are caused by cyclic fatigue and ultimately failure.


Cable failure rate per kilometer: Warnock, John, David McMillan, James Pilgrim, and Sally Shenton. 2019. "Failure Rates of Offshore Wind Transmission Systems." Energies. MDPI AG.

Fuel consumption data: Jalili, Shahin, Alireza Maheri, and Ana Ivanovic. 2022. 'Cost and Emission Analyses of Decommissioning of Offshore Wind Farms Using Reverse Installation Method: Cases of Lincs Limited, Gunfleet Sands, and Horns Rev I Wind Farms'.

Cable repair time: Estimation based on seen case studies

Price of electricity in EUR: Eurostat


The information provided in this document is intended for informational purposes only and should not be construed as professional advice. While every effort has been made to ensure the accuracy and reliability of the information presented, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability, or availability of the content contained herein. Any reliance you place on such information is therefore strictly at your own risk.

Furthermore, the offshore wind industry is dynamic and subject to rapid changes in technology, regulations, and market conditions. Therefore, the information provided may become outdated or inaccurate over time.

Portunus Solutions Ltd shall not be liable for any loss or damage, including but not limited to indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of data or profits arising out of, or in connection with, the use of this document.

It is recommended that readers seek professional advice and conduct their own due diligence before making any decisions based on the information provided in this document.