Where I am from, the power company requires a grant of easement for the transformer location. Depending on the project, they also asses fees if a line extension is required. They also can hit you up for money for what they call a one time tax. If the commercial property is going to be a high demand one, (use a lot of electricity), then a lot of times these fees are lower. They also may have requirements for a spare 4" conduit if it is going to be underground primary. There can be a lot of hidden fees, so it is definetly worth checking before you bid.
