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Something else to consider is the minimum monthly service charge for the second meter. In my area, it used to be $15/month plus the actual electricity used. $180 per year seemed to me to be an awful lot for a little convenience. I have my electrical service set up with a mobile home panel for the meter base. The panel came with a 200 amp main breaker for the house, but also has spots for another large breaker (which could be a 200 amp) and for several other smaller breakers. I ran 2" plastic conduit from the service entrance box on the side of my house and buried it when I backfilled the foundation. It is ready for the barn I hope to build in the next couple of years, except for wire. I plan to use aluminum wire inside the conduit, just like all the other underground wiring I have done on the place. Aluminum is a whole lot cheaper than copper, and if the connections are done properly, it seems to work just fine. Since the present electrical service is on the wrong side of your house, would it be possible to either put underground wiring in a trench dug around the house, or through conduit through the attic or between floor joists to get it to the other side of the house? You would need a main breaker for the feed to your garage, but I believe I have seen add-on boxes for sale just for that purpose. I prefer having my electrical wiring underground rather than overhead. It is a lot of work and expense to dig the ditches initially in my very rocky soil, but once it is done, they are out of sight and out of danger unless someone gets crazy with a backhoe. Since it is so much effort to dig the ditches, and there is danger from the rocky backfill, I always use the plastic conduit. The conduit isn't that expensive, and if there ever was a problem with the wire inside, it might be possible to pull out the old wire and replace it without doing any redigging. You also might want to consider just how much power you really need to your garage. I have a 100 amp breaker servicing my attached garage, and have never approached its limit. Of course, I seldom use more than one power tool at once. Good luck, hth.
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