Passive solar in cold off grid environs.
Real winters without passive solar heat would be a drag. Every time the sun stays "hidden" the days just seem so cold and dreary. Plus the propane just keeps burning and burning.
If you build off grid in cold environs you owe it to yourself to check into passive solar. This place would be grim and expensive without it.
While one can spend a lot of money and perhaps should in more cloudy environs, passive solar can be relatively cheap and simple for something that creates so much light and heat the vast majority of cold days.