alt Hacker NewsIn these sorts of rare situations it is of course possible to run a generator to charge everything up. Off-grid doesn’t mean on an island.
The insane energy density of fossil fuels means this is an excellent “emergency” back-up plan should the sun not shine often enough.
I'm not sure it's rare to live about 45°N, where we start to see >9 hours of sunlight in the winter. The intersection of places that are both above 45°N and very cloudy (Portland, Seattle, London, Detroit, Copenhagen, Dublin, Vancouver) or in high altitude probably includes a good chunk of HN readers. Northern Europe gets down to about 6 hours of daylight in the winter. If you're in one of these regions, and you plan to use a generator to augment your energy needs, I don't think that's considered an emergency as much as a secondary power source. If one of your goals is decreasing carbon emissions then a diesel generator is going to set that back.
Other regions will have their own considerations, but the primary concern is balancing harvesting sunlight with heating/cooling requirements. I'm just encouraging people to do their own homework for their own situation when considering off grid. I've seen a lot of people under build and end up spending way too much to heat their homes in winter.