News Release from GCube Insurance


Wind Industry Profile of

Offshore Wind Turbine Scaling is Creating Unsustainable Market Risks

8MW+ machines suffer component failures within first 2 years of operation, while 55% of all turbine claims now come from 8MW+ component failures during construction / Full cost of claims ‘long tail’ yet to emerge, but set to drive historic highs of claims frequency and severity, posing risks to inexperienced insurance market entrants / Specialist underwriter urges renewed focus on quality and reliability of a reduced number of turbine products to put industry back on a sustainable path

Image: PixabayImage: Pixabay

The offshore wind sector must take action to address a rising tide of mechanical breakdown issues, component failures and serial defects ensuing from the deployment of ever-larger offshore wind turbines. This is according to GCube Insurance (GCube), a leading underwriter for renewable energy projects.

GCube’s new report, entitled “Vertical Limit: When is bigger not better in offshore wind’s race to scale?”, is compiled from 10 years of the company’s claims data and draws on evidence from experts across the offshore wind sector to demonstrate how offshore wind’s risk landscape has significantly shifted, as manufacturers push to develop bigger machines, faster.

Over the past five years, the race to scale turbine technologies has seen the leap from 8MW to 18MW turbines occurring in a fraction of the time it took to go from 3MW to 8MW. While this is a fantastic technological achievement, such rapid commercialisation of ‘prototypical’ technologies is now leading to a concerning number of losses, and subsequently piling financial pressure on manufacturers, the supply chain and the insurance market.

Amongst the findings of the report, underwriters are concerned that 55 percent of all claims by frequency come from component failures during construction from 8MW+ machines, which now represent a larger share of Total Insured Values (TIVs). This, combined with an increase in average offshore wind losses, up from 1million GBP in 2012 to over 7million GBP in 2021, is creating unsustainable financial risk, right when scaling is needed to bring about the energy transition.

Another major finding is that 8MW+ machines are suffering from component failures within the first 2 years of operation. This is juxtaposed against the significantly shorter timeframe (5yrs) for component failures during operation in the 4-8MW category of turbines and points to the urgent need to address product quality and reliability – a key recommendation of the report.

The situation may create issues for the insurance market as traditional energy underwriters deploy capacity into the renewables market by offering broad policies and low premiums. GCube argues that new entrants must learn from challenges in the onshore renewables market by taking a more realistic approach to pricing and T&Cs, otherwise risk substantial losses that would further exacerbate the current instability in offshore wind markets.

The warning shot comes at a time when the insurance market for onshore renewables continues to harden after a string of costly losses from Nat Cat and supply chain issues. The report states how new turbine equipment issues in the offshore market may be going unrecognised on account of other prominent sources of losses, such as cable failure.

Fraser McLachlan, CEO, GCube Insurance, said: “The push to rapidly develop more powerful machines is piling pressure on manufacturers, the supply chain, and the insurance market.

“Scaling up is an essential part of driving forward the energy transition, but it is now creating growing financial risks that pose a fundamental threat to the sector. We advise manufacturers to focus on improving the quality and reliability of a reduced number of products to put themselves back on a sustainable path of development.

“At the same time, developers must support manufacturers by sharing the risk of larger machines more equitably and open their lending books to supply chain companies. Vessels are going to be one of the biggest bottlenecks in building offshore projects, and developers are in a powerful position to invest in supply chain companies at the benefit of the entire sector.

“New entrants to the insurance market need to build their knowledge and experience of the nuances of renewable energy technologies. In doing so, they’ll be pushed to take an approach to pricing and T&Cs that’s based on the growing risks within the sector – and better support offshore wind’s ambitions to bring about the energy transition.”

“Vertical Limit” is available exclusively to GCube’s Insured clients and Brokers. To request a copy, please click here.

GCube Insurance
Press Office
GCube Insurance, scaling, wind turbine, offshore, MW, scale, Vertical Limit, report, technology, breakdown, component failure, serial defect, deployment

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