I'm having this SAME issue - although my reason for not wanting electric is financial... no human babies around here. also electrical is unnecessary in my case because theres another large fence around the farm, and i wouldn't need an electrical fence within a fence.
what did you end up doing?
I'm wanting to move my 12 chickens from their current homes to a chicken tractor surrounded by poultry netting on the farm. the whole corner farm is surrounded by high metal fencing. critters won't be able to get in. but I want the chickens to be able to wander around in a bigger space, eat...