Seagreen Wind Farm site, 27 kilometres off the coast of the county of Angus in Scotland

The first turbine jacket foundation is installed at the Seagreen Wind Farm site, 27 kilometres off the coast of the county of Angus in Scotland (Quelle: SSE Renewables)

Two jackets operated by main contractor Seaway 7 made their way on a barge from Global Energy Group’s Port of Nigg in the Highlands of Scotland to the site 27km off the coast of Angus, arriving on Wednesday. It was met by the Saipem 7000 – the semisubmersible crane vessel which is used to lift each of the 2,000 tonne jackets.

The maiden voyage marked the start of works for the 1.1GW Seagreen Wind Farm project site, a £3bn joint venture between SSE Renewables and TotalEnergies. SSE Renewables is leading the development and construction of the project, supported by TotalEnergies, and will operate Seagreen on completion. The installation campaign marks the first-ever gigawatt-scale deployment of suction caisson technology to fix offshore wind turbine foundations to the seabed.

Several barges will work in continuous rotation with each other carrying two jackets from Nigg to the offshore site before returning to Nigg for replenishment. Each journey from Nigg out to site will take approximately 36 hours depending on the weather.  More than 50 people are involved each time the barges head out to site including the on-shore team, ballast engineer, tug captain, crew, riggers, welders, tow master and pilot. The overall turbine foundations installation campaign is supporting over 140 skilled jobs at Port of Nigg, delivering a green jobs boost and significant economic benefit to the Highlands and Scotland. 

Paul Cooley, Director of Capital Projects at SSE Renewables said:  “It is fantastic to get our campaign to install all 114 wind turbine foundations in underway and on schedule for what will be the world’s deepest, fixed bottom offshore wind farm." And Philippe de Cacqueray, Head of Offshore Wind UK at TotalEnergies said: “Scotland’s energy transition is beginning to accelerate, and we have taken another important step towards the Net-Zero goal. TotalEnergies is delighted that Seagreen has now installed the first jacket at what will become Scotland’s largest offshore wind farm.”

A lease agreement between Crown Estate Scotland and Seagreen has been signed for rights to access the required area of seabed which allows the project to move on to this next stage of its development. Colin Palmer, Director of Marine for Crown Estate Scotland, said: “This is an extremely important development in the expansion of the Scottish offshore wind sector, as we continue to take strides towards a Net Zero future for the country and comes just weeks prior to Scotland playing host to the COP26 summit in Glasgow."

First power is expected by early 2022 with the offshore wind farm expected to enter commercial operation in 2023. When complete, the 1.1GW Seagreen Offshore Wind Farm in the outer Firth of Forth will be Scotland’s largest, and the world’s deepest, fixed bottom offshore wind farm.

Quelle: 

  1. SSE plc

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