East Anglia THREE Offshore Windfarm


How does an offshore windfarm work?


1 Offshore wind turbines convert energy from the wind into electrical energy.


2 Electricity is transmitted from the wind turbines to offshore collector stations by inter-array cables.


3 The collector stations transform the electricity into a higher voltage.


4 Offshore convertor stations convert the electricity from alternating current (AC) to direct current (DC).


5 The offshore export cables bring the electricity to shore where they are connected to underground onshore cables.


6 Onshore cables take the electricity to an onshore converter station.


7 The converter station converts the electricity back to AC from DC


8 Electricity is transmitted to the National Grid substation, then onto the national transmission network.


The technologies used to construct East Anglia THREE will be groundbreaking in terms of the types of turbines and foundations used, the size of these, the installation methods and the output of the turbines.


This is due to the water depth, sea conditions, distance from shore to the project and the need for the project to be commercially viable.


Image of Ormonde Windfarm (Source: Vattenfall. Ben Barden)


Repower 5 megawatt wind turbine with a height of 115 metres. The wind turbine model proposed for East Anglia THREE Offshore Windfarm is yet to be determined, however, the maximum height of wind turbines would be 247 metres.


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14