I imagine that, though inconvenient, it probably would not be too difficult to live without electricity entirely for an extended period of time in Hawaii. Then again, I can't speak for everyone of course.

I grew up in Michigan and we used to get winter storms that would knock out power for weeks at a time. We had blankets, a fireplace, the back porch for a freezer, a low cool place on the floor near the back door as a refrigerator, and oil lamps to read by. I remember once studying for final exams in college by the light of an oil lamp because the power had been out for several days due to an ice storm taking down all the power lines. It's amazing what you can get used to.