One Service plus One Feeder

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charlie b

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I have a vague recollection of seeing this question before. I might even have been the person who posted it. But I have an even more vague non-recollection of what the answer might have been.
  • 230.2 allows only one service to a building (with exceptions that I will not bring into this thread).
  • 225.30 allows only one outside feeder to a building (with similar exceptions).
  • Question: Can I bring one of each to the same building?

Two adjacent single-family homes, one owner who plans to occupy both (i.e., the second as a guest house). Each has its own service from the local utility. Owner wants to install a PV system with battery storage in one building. They want to bring one 30 amp feeder to the other building to supply only a fridge and freezer, which will not get any power from the utility service to that building.

OK?
Not OK?
 
since they are not the same source, I think it is fine. you should be able to have an unlimited number of supplies to a building if each one is a different source.
 
225.30 includes a feeder on the load side of a service disconnect, so you still have 2 feeders to each building.

But 225.30(A) exceptions 4,5,and 6 each seem to apply. So I would say one service and one feeder to each building is fine based on any of those 3 items.
 
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