I recently moved from a home in Southern New Hampshire. All of the wiring was buried. No telephone poles or street lights. This is the norm in many towns up here. Not the boondocks, highly populated, sky high property taxes... My question is, why, when all wires are underground , did power outages occur? I'm sure there's a simple answer but I've been wondering about it for years. While I'm at it, can anyone explain why there was only one zone for heat/AC in a 3000 SF house?