This is amazing technology - but I'm curious as to how unusual it is? The article says "It feeds (fed) power from the Scattergood Steam Plant in El Segundo to a distribution center near Bundy and S.M. Blvd."

Are most power stations and distribution centres connected in a similar way? Or are they typically co-located?

i.e. are there loads of cables like this, and if not why did they do it in this case?