I just recently moved into this house on 9 acres and I need to put power out to my barn that is 300' down the driveway from the house. I used a voltage calculator to determine wire size and it is telling me that I need #2 copper for 120 volt, 30 amp, at 300' distance. I was planning on digging a trench and laying in 2" Sch 40 conduit and running the 2 wires (1 hot, 1 neutral) down there as well as driving a grounding rod in next to the barn and installing a 30amp sub-panel. At today's copper prices though that is gonna get very expensive. Is there a better way to accomplish what I'm trying to do?? The barn is doubling as my workshop and will have a 120volt 5hp air-compressor, as well power tools and lights running in it. Any ideas anyone has here will be greatly appreciated. Thanks.... Ps: I have 25yrs in the building materials industry with several of those as a carpenter in construction so I have a basic knowledge but am not an electrician.