vessel

Under the contract, Tideway will be responsible for the cable-laying, pre-trenching, backfilling, pre-sweeping, route preparation and rock placement of three high voltage subsea power cables from the shore to three different offshore substation platforms.

A reactive compensation platform is planned to be installed between the three substations and the shore due to the extreme length of the three subsea power cables.

The scope of the contract also includes installation of two interlink cables for the project, which is being developed 120km off the Yorkshire coast.

Dong Energy Hornsea Project One senior program director Duncan Clark said: "This activity will take us another step towards the construction of the world’s largest offshore wind farm."

Tideway will deploy DEME’s Living Stone DP3 subsea cable-laying vessel for this project. The vessel is currently under construction in near Bilbao, Spain.

The firm plans to commence offshore project in 2017 with the engineering route survey and the last export cable will be installed in mid 2019.

Tideway directors Hugo Bouvy and Lucas Bols said: "We are delighted to be expanding our relationship with DONG Energy from the offshore oil and gas market to the key growth area of offshore wind.

"Uniquely, ‘Living Stone’ has a 10,000t cable capacity divided over two turntables arranged below deck, which meets the project’s specific challenges, helping Dong Energy to bring down the risk and cost of this huge offshore wind development."

The Hornsea Project One offshore wind farm is designed to generate electivity required to power over one million UK homes, off the Yorkshire Coast in the UK.


Image: Tideway will use Living Stone vessel to install the cables for Hornsea Project One offshore wind project. Photo: courtesy of DEME.