6.6 kw Solar Panel System

A considerable number of Aussie’s are making the switch to a more environmentally and financially sustainable option like solar. If you are looking to install solar too, we have come up with a set of information that you might want to look at before making a decision. 

A 6.6 kW solar panel system is one of the most popular PV modules installed by Aussies in their residential homes. This system provides greater capacity and makes battery backup systems or storage more feasible. Let us take a look at the reasons why this solar power system has gained so much attention in Australia in these recent years. 

Cost of 6.6kW solar panels

The price of a 6.6kW solar system is dependent on so many factors, such as:

  • The brand of the panel
  • Quality of the parts
  • The state where you reside
  • The exact configuration you would like to purchase

If you are going for a good-quality solar PV module, you will be making an investment of around $5,500 to $10,000. 

Each kW of the solar power system can produce electricity of about 4kWh every day. Thus, a 6.6 kW solar panel system can generate approximately 26.4kWh of electricity on a good sunny day. You will get to enjoy ample power from solar energy. 

The production capacity of solar panels primarily depends on where you reside in Australia. The various factors which influence the production capacity of a solar power system are:

  • The location where you live.
  • Arrangement and tilt of solar panels.
  • Amount of shade falling on the panels/around the property.
  • How efficient is the performance of the panels and the inverter? 

The below table gives you an idea about the average system output of a 6.6kW solar system:

Adelaide – 27.7kWh

Brisbane – 27.7kWh 

Melbourne – 23.8kWh

Perth – 29.0kWh

Sydney – 25.7kWh


How many panels are needed in a 6.6 kW solar panel system?

Different solar panels give different amounts of power. Nowadays, it is common to see Commercial solar panels in the range of 300 watts to 400 watts per panel. For instance, using a 330 watts solar panel, you need to install 20 x 330w panels to get a 6.6kW solar power system.


This solar system module is the most recommended by various solar manufacturers for residential homes in Australia. To take full advantage of this rooftop solar package, you should pair it with a solar battery to get rid from the slavery of the grid. Generally, when a 6.6kW solar system is paired with a 5kW inverter, it generates approximately 23.8kW to 27.7kW of electricity every day. This solar PV module is by far the most popular choice among the majority of average-sized Aussie residents.   


What is the expected payback period?

Given that your system was installed well, came at an affordable cost, and produces a decent amount of electricity for consumption, you can expect an average payback period of approximately 3-5 years. Imagine the amount of money that you are going to save after choosing to make the switch to a renewable source of energy! 

By Caroline baum

Hii I am Lanie Jones I am a passionate blogger. I have done MBA from Banglore.

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