This depends upon your average daily usage and the amount of electricity your household normally uses during hours of sunshine.
Factors to consider include:
- Whether or not electricity is used during the daytime by your household.
- Your average daily electricity usage, written on the back of your electricity bill in kWh.
- The amount of roof space that you have available for solar panels.
- The budget for your particular Auzion system.
An average household using 20 to 25 kWh of electricity per day, using only a small amount of electricity during the daytime (e.g. to run a fridge and freezer) might expect a 1.4 kW system to reduce electricity costs by 40% to 50% per quarter.
A household that uses more electricity during the daytime might consider installing a larger system to enable some feed-in to the mains grid to take advantage of the high feed-in tariff.