Next May I'm going to the south end of the Alaska peninsula for brown bear and will be in a tent out in the bush. I have a serious problem with insomnia, but the CPAP machine does wonders for my sleep, of course there will be no electricity out there. So I am wondering if anyone knows of a solar generator that could charge a battery pack(that's what I used in Africa this summer) big enough to run the CPAP. There will probably be very little sunshine up there.