We leave our shepherd in a cage while we are gone. She is just over a year old. She is a yappper, but has been pretty good leaving her behind. As long as you are sure of the electric service I wouldn't worry. When we had our other shepherd he was 100lbs. He stayed behind and we didn't worry. We stay close and ar writhin an hour. When we went to NYC in July I brought out camera and connected it to my IPhone left behind as a hot spot. So if the power did go out we could keep an eye on the temp (indoor temp monitor) and the camera was plugged into the inverter. There is always something you can do to watch the inside temps!