One thing to keep in mind with your remote cabin (and oh do I envy you). When CA started putting solar powered call boxes on remote freeways, they had a big problem with bad guys stealing the solar panels. They still use the system, don't know how they solved the theft problem. But if anyone should stumble on to your cabin in the boonies, and have a hankering to apply solar power to their own home/cabin, you might arrive some day to find your panels missing. Not sure how to prevent that...