We lose power on rare occasion during the winter, but if we get a hurricane we could be out of power of weeks, and being close to a major city us country folk aren't high on the priority list. We are having a 27KW unit put in as soon as I can find the funds which means I'll only be out of power for as long as it takes the automatic switch gear to kick the generator on and it will run everything in the house A/C units, well, septic, hot tub, etc