After 2 power outages and one self induced oops outage during my hatch, I bought a 410 watt power converter which will run off any car battery, it even has an adapter to fit a cigarette lighter. Next time I incubate, I'll be prepared, won't even be at the mercy of a fickle generator which chooses to not start when most needed. Incidentally, even after these outages which added up to at least 10 hours, I had an excellent hatch. Ash, re: humidity, I found that sponge worked great for keeping humidity up. I used some aquarium tubing with a 5cc medicine syringe attached to the tubing to fill directly from my sink. My sponge sat in a small container, and I found that if I got over zealous with adding water, I could siphon some back out to bring the humidity back into range.I hoping we don't loose power too, mine eggs are in lock down day 19.