I have been scratch building some of the trailers that form part of the infrastructure for the launch of the Thor missile.
So artistic licence here I am afraid, details are quite sketchy.
There are hydraulic pumps for the raising of the missile, air conditioning units, Power switchboards and electrical and launch control trailers. Everything used the US electrical system.
The diesel generators were situated some distance from the actual launch site.
Most of these were connected to the conduit that was laid into the concrete site.