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Published: 17 January 2019 17 January 2019
Tennet Vattenfall offshore transformator platformGrid operator Tennet and Vattenfall have signed agreements for the offshore grid connection for the Hollandse Kust Zuid I and II wind farms. The agreements concern the realisation of the connection and the transmission of electricity between the 700MW wind farm of Vattenfall and the Tennet Hollandse Kust Zuid Alpha offshore platform. 
 
Hollandse Kust Zuid offshore grid comprises two transformer platforms at sea, each with a 700MW capacity, two 220 kV alternating current cables per platform, a yet-to-be-constructed onshore substation and an expansion of the existing ‘Maasvlakte’ onshore high voltage substation where offshore wind power is connected to Tennet’s Randstad 380 kV Zuidring. The wind power will be supplied to electricity consumers across the country via the national high voltage grid. The two connections from the Hollandse Kust Zuid offshore grid, which have a joint capacity of 1,400MW, will become operational a year apart, in 2021 and 2022. Vattenfall won this first subsidy free public tender issued by the Dutch government in March 2018.
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