Can I be completely self-sufficient with a solar system?
With a sufficiently dimensioned solar system, suitable storage systems such as lithium batteries and an inverter, you can cover most of your energy requirements.
Does the solar system also work on cloudy days?
Solar modules also work in cloudy weather and generate electricity, but with less power than in direct sunlight. If the modules are completely covered with snow, power generation may be temporarily suspended until they are uncovered again.