Power failures are now my worst nightmare... EXCEPT...... I bought a block of land two years ago- and have become quite handy at fixing stuff up and since we have no power up at the shed where we stay on weekends- we have had to use a generator- and solar powered lights. - so I saw a power inverter once while shopping and bought it. I never got around to getting a battery yet- but it will run off a car battery and give off plenty of power to run the incubator and a light globe - All I need if the power does go out. I can remember last spring when I fisrt got my incubator..The first time the power went out...I was calm...but my daughter was in a complete panic. That first one only laasted 3/4 of an hour- but it was enough to see a huge drop in the temp in the bator. Even after a power failure of 6 hours in a late hatch- I still ended up with lots of babies. So late in the incubation - You could almost stick them in the brooder rather than going outside in the rain. I once hatched a duckling on a hot water bottle when we were going away for the weekend.
Good luck anyway- and I hope the power stays on for you.