Unfortunately, all such calculations are egocentric. People assume that everyone can use solar panels for 13 days 2 weeks, and when needed, we’ll just get electricity from the grid. But what they don’t take into account is that when there’s load today but none tomorrow, the grid becomes unstable. 2) This also increases costs. You might save electricity consumption in 14 times, but your expenses for grid electricity can increase in 14 times, because the grid still needs to be maintained — staff must be kept at power plants to ensure you can be supplied with 100% of your energy at any moment.

These people don't have access to the grid. That's the issue to begin with.

The tricky thing in cold climates is the part of the year when solar power is lowest but electricity use, for heating, is highest. Sometimes they have hydro or something.