It's a popular but incorrect myth that when it's cloudy your solar PV system will not work. But that's not true, because of these reasons.
Firstly, as you'll know, you can still get a sunburn on a cloudy day. This means that the sun's energy is still getting through the clouds and can be collected by your solar panels. The amount collected on a cloudy day will be less than that collected on a sunny day, but the energy creation doesn't simply stop. Any deficit you'll be able to top up from the grid or from previously collected energy.
Today's solar panels capture around 15% to 20% of the energy collected on a sunny day when it's cloudy. Even this low percentage is enough to run many households.
Secondly, on average, Australia experiences enough sunlight to ensure solar is a viable option for energy creation. Even in the UK (where there are only 2.5 sunlight collecting hours on average per day) there's enough.
If you want to be certain that your area, home, and budget will be enough to cover your energy needs, speak to a professional. Post a job today and get quotes from up to three quality Solar professionals who will advise you on your needs.