The GOELO ENABLER, (Ex EDDA GOELO) shown here leaving Rotterdam at the end of a very rainy day. The category is a bit of mystery for me, IHS describes her as a Service Operation Vessel, and the windturbines painted on the hull would suggest her to be involved in the surveyeing of the many turbine fields that are now operating along the coast of the North Sea. Built by Balenciaga in Spain, she was delivered last March, and the renamed in April.

EDIT: A description of her purpose can be found here:

https://www.shipspotting.com/photos/3475473