Contrary to common belief, solar power can work practically anywhere. Even if you live in a cloudy climate, there is usually enough sunlight to supply your electricity needs. Germany receives less sunlight hours than places like Seattle and Alaska, but still provides half of it’s country/s energy from solar. The second factor considered is the amount of available roof space on your building. However, it is surprising how much electricity can be generated from a small amount of surface area because our solar panels are consistently improving in efficiency . Solar systems work in most cases.