To the users of Sunny Portal and Solar-yield: thanks to a cooperation between both portals we are able to provide a gateway for data exchange. Together with Andreas Strusch (Product Manager Sunny Portal) and Stefan Bauer, we can start with the Beta Version 1.0 now.
At the moment we are working at a new version of Solar-Yield (Version 2). There the field 'data import' will get a proper category. Changing the old registration is therefore useless.