http://www.allen-diesels.com/case-studies/civil-aviation-authority.php
Two 16kV, 5MW diesel engines, it seems.
Note that this is not a comment on Allen Diesels, nor am I suggesting that they are in any way at fault. I merely came across that page when searching around t'interweb to see what sort of backup power supply Swanwick has.
Biting the hand that feeds IT
