A patented solution for long - term protection of inter-array cables

Market potential

There is a great market potential in offshore wind power. Energy experts estimate that 7% to 11% of Europe’s electricity will be generated by offshore wind by 2030. The projected total output is believed to be 24.6 GW in 2030 and 86 GW in 2050. Documented by Rystad Energy AS in a newly value proposition study done for Spintech.

Experience and engineering design-studies show that the most important factor driving Lifespan/Maintenance Cost/Life Extension Cost, including total Project Returns, for offshore windmill parks is the structural integrity of the inter array cables.

The cluster of inter-array cables could also be labelled ‘the weakest link’ within an offshore wind-mill project with its design-lifespan of approx. 20 years.

The above factors will become even more challenging for floating wind-mill farms, due to the additional forces and dynamics these floating units will be exposed to over time.

Large value in reducing failure rate of offshore wind inter-array cables

Extensive losses from inadequate cable protection systems within the offshore wind industry dictate a sector wide need for improvements.

„Cable-related incidents account for 80% of insurance claims for offshore wind farms, with 60% directly relating to cable damage during construction. The cost of cable supply and installation for wind farms typically account for 8-12% of overall CAPEX costs. Improving the cable installation and operation is fundamental driver to cost reduction.” Offshore wind accelerator (OWA), Carbon Trust

In Q1 2021, Orsted reported to have discovered that inadequate CPS (cable protection systems) solution could potentially lead to cable failures. The issue could concern up to 10 wind farms, and initial estimates put the total cost at up to DKK 3 billion over the next three years. This includes stabilisation of cables, replacements and potential production losses resulting from the issue Fallowing the Orsted announcement, similar CPS issues have been reported by multiple offshore wind developers, illustrating a wider need for improved CPS solutions.