Matt, I have a power-company hub transformer in my yard, 35 feet from the
corner of this barn. I will be paying an electrician just enough to install
a 300-amp panel and add a separately metered service from the power
company. I'll run all the branches myself. I have no interior finish on the
walls, so I can attach conduit runs wherever I want them. I'll be able to
go through walls as needed, too. I'm planning two 30-amp RV ports outside,
one inside, plus another two for bigger tools, and yet another one for a
compressor. Then, maybe five 20-amp branches, one for the attic, a 240V
20-amp branch for the attic, and lighting (I plan to use large LED bay
lights, maybe 8 of them). The heading system requires two 60's and a 30. I
just don't see how less than 300 amps could make me happy

But I think I can go through the walls for all that. The power company will
want the meter can on the outside in any case, and then punch through the
wall to an interior panel.

Rick "those LED bay lights are BRIGHT" Denney