Tl;dr $155k to get power and a second 3” conduit (for comm.) 2,250 ft. underground. Here’s the breakdown of a project from this past summer. GMP charged $42k to go 2250’ underground. $12k of that was for cost sharing because this was an extension to an existing underground line. There were 4 peds and one 25kva transformer. Another company was hired to trench and install two 3” conduits the entire 2250’ length. That was about $98k of which $39k was conduit @ $8/ft. A 3rd company was paid about $15k to blast 200’ of ledge for the trench.