In CA it's just a matter of checking a box, then they put a transformer on the PG&E pole to match your voltage reqs - the wire to your pole is $90. The transfor

In CA it's just a matter of checking a box, then they put a transformer on the PG&E pole to match your voltage reqs - the wire to your pole is $90. The transformer can run in the thousands probably up to 10k. Of course, if your area can't handle the voltage * amperage requested, they may deny it or ask for about 10k per new pole to install in the ground. That said you just pay that once, after that you have your rate. A lot of people have odd power requirements - but usually not residences. Farms typically get 400V for greenhouse fans, for example.