The planned wind farm will have an output of presumbly 300 megawatts of wind power and will be built around 75 kilometres off the coast at Callantsoog in northern Holland.
The wind farm will consist of 59 wind turbines, which will be installed in sea on gravity foundations and will have a height of 150 metres. This gravity construction is needed to ensure the stability and safety of the offshore wind farm. According to the current state of planning start of construction of the wind farm shall be from 2013/2014 on.
Additional RWE Innogy received permission for the installation of a meteo mast. The mast will be located 85 kilometres off the coast of Ijmuiden, which is 500 to 1,000 metres southwest from the planned wind farm Tromp. This meteo mast will deliver important information with regard to wind speed and patterns for the realisation of the offshore wind farm Tromp.
RWE Innogy is already involved in the Thornton Bank offshore wind farm in Belgium. A 300 megawatts wind power station is being built around 30 kilometres from Ostend in 28 metres of water.
Six turbines with an output of 30 megawatts have already been installed. RWE Innogy is planning the construction of the around 280 megawatt wind power station Nordsee Ost located in the German North Sea around 30 km to the north of Helgoland and approximately 45 km to the west of the North Frisian island of Amrum as well as the wind energy station Innogy Nordsee 1 with around 960 MW, which is planned to be located 40 kilometres from the East Frisian island of Juist.
Furthermore, the company is very well represented in the offshore wind farm business, particularly in Great Britain. Apart from the existing 60 MW wind farm North Hoyle of the coast of Wales, RWE Innogy will be putting its second wind power station Rhyl Flats into operation this year with 90 MW of installed power.
The Gwynt y Môr offshore wind farm that is also being planned for Wales will be one of the biggest of its kind with an installed output of several hundred megawatts. RWE Innogy also holds a 50% stake in the Greater Gabbard offshore wind farm off the east coast of England. Following its completion in 2011 this wind power station will provide a total of 500 MW.