Here in California all the utilities are pretty much the same. We install all the structures, (primary and secondary conduits, slab boxes, pull boxes pads grounding etc.) to there specs and design. The owner pays all utility company fees. Sometimes we coordinate with the utility, sometimes it’s up to the GC. All in how the specs are written.
BTW: One particular utility here requires that you be an “approved” contractor to tie into there existing structures. If you are not, you have to sub that portion of the work to someone who is. That will bump up your cost a little.
The whole thing is pretty ironic. My company isn’t “approved” and does not wish to be. At least one of the subs we hire that is is a pipeline contractor. So we watch laborers, who know nothing about electricity, work in live 12KV vaults doing electrical work because we are not allowed to. Does that make sense?