So, I have been lurking on this forum for the past couple of months, as I recently decided to join the flock of backyard chickens keepers. I live in Wisconsin and it gets quite cold here. I have been looking for ideas to prevent the chickens' water from freezing WITHOUT any electricity, but it seems to be limited. I have found a number of forum posts about this and it always seems to turn to running extension cords to the coop. My chickens are housed on an undeveloped lot with no well and no electricity. There is NO WAY to run any extension cords to the coop. Running hot water to them every day is also not practical, as I work very long hours and often leave home when it is dark and get home when it is dark. I can do that 3 or 4 days a week, but definitely not on a daily basis. I have the stuff to make an insulated waterer with a tire and a 3 gallon rubber feed bin and spray foam, but I was wondering if anyone has any other creative ideas. I have also considered possibly buying a solar panel, but I don't think I'd be interested in buying one over 100 W due to the cost.