Navantia delivers Andalucía II offshore substation to Iberdrola, destinated to East Anglia One offshore wind farm

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It will be installed at the world’s largest offshore wind farm currently being built

Iberdrola and Navantia has marked the delivery of the offshore substation, christened as Andalucia II, entirely built at the shipyard of Puerto Real (Spain) and destined to Iberdrola’s East Anglia One offshore wind farm in the United Kingdom. Andalucía II, the largest AC offshore substation ever to be fabricated, will set sail over the next few weeks and will be installed at the site of Iberdrola’s offshore wind farm. With 714 MW total capacity and an investment of £2.5 billion, East Anglia One is the world’s largest renewable energy facility being built by a Spanish company.

Present at the event were José Esteban García Vilasánchez, Chairman of Navantia, Ignacio Galán, Chairman of Iberdrola and Susana Díaz, Head of Analusia’s regional government who christened the substation.

East Anglia One, a driver of job creation and economic development

East Anglia One offshore wind farm has become a key driver of economic development in all of the areas taking part in the manufacturing of the equipment and installation activities. As was the case with Wikinger, now operating in the Baltic Sea, Iberdrola awarded Navantia, together with some 30 specialised ancillary companies, the fabrication of a key element of the wind farm, its offshore substation.

After 16 months of work, the unit has been delivered according to schedule and has enabled the creation of approximately 450, mainly local, jobs, reaching 600 on peak working periods.

Innovation at the largest AC offshore substation

Andalucía II offshore substation is at the heart of the wind farm Iberdrola is building in British waters. Its role will be to collect the electricity generated by the wind turbines and transform the supply voltage from 66kV to 220 kV. Power will then be carried by the export cable to land, thus minimising losses along the route.

The topside, the world’s largest AC substation, includes design innovations developed by Iberdrola to make it more compact, bringing down is weight to 3,900 tonnes while facilitating handling by installation vessels.

In early August, the Andalucía II substation will be towed from Puerto Real to British waters with arrival scheduled for early September. Over the next few months, piles, jackets and topside will be installed on site alongside the rest of the WTG jackets.

East Anglia One will be commissioned in 2020 and will produce enough clean energy to power the consumption of nearly 600,000 UK homes.

Having pioneered the development of onshore wind, Iberdrola is leading the way of the renewable energy source with the largest growth prospects: offshore wind.

The company currently operates two offshore wind farms, West of Duddon Sands in the Irish Sea, and Wikinger, in the Baltic Sea and has a project pipeline of over 7,200 MW in the North Sea, Baltic Sea, French waters and the Northeastern US coast.

Source: Navantia