A look at our own plant

Mostly I take nightpictures of the newbuilding sites of NUON and RWE but one of my collegues asked me to take a look at the back of our own building at night.
I went to the the south part of the site and the staircases at the back of the boilerrooms stand out indeed. Every unit has it's own color, painted at doors in the staircases and inside the building and at the enclosures of the turbines.
Purple is for unit EC 4.

Better in LARGE....