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The builders had to put a special rolling door with vents in front of the generator (white box) because it needs 2 cubed metres of air every second. Hot air exits out the back through a newly created hole.
The exhaust from the generator is taken out the ceiling through the submarine room. According to the company, every 90-degree bend the exhaust runs through makes for a 40 per cent reduction in noise.
In the time between mains failing and the generator coming up to speed, there are 280 batteries in 14 battery cabinets which can be seen on the left and right. The orange boxes, called "money boxes", distribute power to the different rooms and racks.