The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Vattenfall's[3] press release "DanTysk offshore wind farm formally opened" states the formal opening took place on 30 April 2015 in Hamburg.
Industry project profile confirming the 70km-west-of-Sylt location, first power in Dec 2014, and formal commissioning in April 2015.[1]
Vattenfall's own press release announcing the formal opening ceremony of DanTysk on 30 April 2015.
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