United Kingdom

United Kingdom

Triton Knoll selects MHI Vestas 9.5MW

UK: German developer Innogy has chosen to use MHI Vestas' V164-9.5MW turbine for its CfD-support-winning Triton Knoll offshore project.

Approximately 90 V164 9.5MW turbines could be installed at Triton Knoll
Approximately 90 V164 9.5MW turbines could be installed at Triton Knoll

The project, 32km off England's east coast, will be one of the first to use the 9.5MW evolution of MHI Vestas V164 turbine, should the project go ahead after a final investment decision expected next year.

Innogy is aiming to source 50% of the project's components and services from within the UK. MHI Vestas has a blade facility on the Isle of Wight, off the England's south coast.

"MHI Vestas is absolutely central to our business plan, which aims to deliver at least 50% UK content over the lifetime of the project, while creating significant value for the UK and energy consumers from the delivery of our wind farm," said Triton Knoll project director James Cotter.

Innogy was successful in the UK's second contracts for difference auction, awarded last week (11 September).

It, along with project-partner Statkraft, secured support from the government to build up to 860MW at Triton Knoll at £74.75/MWh (€86/MWh). The first phase of the project must be online by 2021/22.

MHI Vestas launched the 9.5MW version of its turbine at the Offshore Wind Energy 2017 event in London in June.


READ MORE: Windpower Monthly's technology consultant Eize de Vries took an exclusive look at MHI Vestas' new V164 variant ahead of its unveiling in June:

"New features included a tube-shaped medium-speed drivetrain with the structural load-carrying main shaft housing bolted to a cast machine bed.

"The chassis design comprised a heavy-duty cast vertical section bolted to the machine bed, and integrated within a steel spaceframe structure to carry the weight of nacelle components and support servicing activities.

"Upgrading to 9.5MW involved reapplying the electrical, mechanical, structural and thermal design reserves without sacrificing on design safety factors.

"The modifications are generally minor, requiring no changes in the main dimensions."


It is currently the largest turbine available on the market but rivals are known to be working on 10MW+ machines.

A prototype of the machine was irrevocably damaged in a fire in August.

It has since been dismantled and an investigation in to the cause of the fire is under way.

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