Hello!
It is indeed Wildenrath. I have had this idea in mind early as well, but you need to look at the GE image of year 2000 (!!!) to have a chance to identify relevant details (by the way the center of the hangar on the photo is about there: 51.118156 6.225298).
Now in 2015 Siemens has but eradicated most of the taxiways, hangars buidings etc...
Sad!