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two main service panels

  1. Electrical
    I have a home with a 100 amp service. I am approved for up to 200 amp. I don't want to replace the old panel I just want to add a new 100 amp panel next to the old one. Off of it I want to run a subpanel of 100 amps to a shop. Is that Bad practice, do I just need to replace the original 100...
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