Vestas has announced the first deal for its V150-4.2MW turbine also includes the use of its cable-supported tower concept, unveiled in March 2017.
The 21MW Tuuliwaati-developed Viinamäki project in west Finland will also be the country’s first merchant wind project – relying on market prices for revenue.
The developer reached a final investment decision on the project at the end of May.
To make the Viinamäki project financially viable, the developer opted for Vestas’ new V150-4.2MW turbines, which will be among the highest-rated ever installed in Finland.
Tuuliwatti said the production cost of energy from the project will be below €30/MWh.
The turbines will be installed on 175-metre towers, supported using ground-anchored cables.
Turbine tip heights would therefore reach 240-250 metres. Vestas claimed this tower concept would allow taller towers for less material that would be needed using traditional methods.
The cables are manufactured in a "multi-strand system" as commonly used on bridges, where each cable consists of a bundle of strands made of high-strength steel.
This offers a built-in redundancy, according to the manufacturer. Vestas said the project would form part of the product certification for the cable-stayed towers.