The coordinates of the TenneT platforms are not included in the Wind Farm Site Decisions. They are presented in the memo, but this is not legally binding. What are the official coordinates?
The coordinates can be found in the draft decisions for the permits for the offshore grid (including the substations). These draft decisions can be found at the website of Bureau Energieprojecten: http://www.rvo.nl/subsidies-regelingen/bureau-energieprojecten/hoogspanning/noz-borssele/fase-1. Location of the substations can be found under the requirements "(Voorschrift 1) of (Ontwerp) Watervergunning voor het installeren, gebruiken en opruimen van het net op zee - Borssele van TenneT TSO B.V.": https://www.rvo.nl/sites/default/files/2016/03/OB02_Watervergunning_RWS.pdf