7kW Solar Systems: Prices, Output, and Return on Investment 

Solar panels are now installed in almost all countries. If we talk about Australia, more than 2 million houses have now installed solar panels in order to get rid of increased energy prices. The ideal size of a solar system is based on the demand for electricity for your homes and offices. However, for homes, usually, a 5kW solar system works efficiently while a 7kW is not affordable for most people. Let’s take a look at the Prices, Output, and Return on Investment for 6.6kW and 7kW solar systems.

Space and Solar Panels Required for a 7kW Solar System

Since a 5kW solar system requires 16-20 panels in order to generate 20-25kWh of electricity, a 7kW solar system is bigger as compared to a 5kW solar system and needs almost 26-30 panels and the area required for this number of panels will be 40-50 m2 or a bit more depending on the location as well as the orientation of panels.

Price for a 7kW Solar System 

Taking into account the fact that a bigger-sized solar system generates more power than a small-sized solar system, its cost will also be more. The average price for a 7kW solar system in Australia is almost $1.1/watt. The table below gives an idea about the prices of 7kW solar systems in different cities of Australia till the end of 2019. The prices were increased later due to the crisis caused by the pandemic last year.

7kW Solar Price

The output of a 7kW Solar System

The yield of an any-sized solar system depends upon a number of factors. Some of them are mentioned below:

  • The location where panels are installed
  • Orientation of the panels along with tilt angle
  • Amount of sunlight received by the panels per day
  • Operating Temperature 

The following table gives an idea about the electricity generation each day (on average) in capital cities of Australia: 

                                             7kW Solar System

CitiesEnergy Production on Daily Basis(kWh)
                    Brisbane                            27-30
                    Darwin                              32
                    Hobart                           21-24
                    Melbourne                           22-26
                    Adelaide                           26-30
                    Sydney                           24-27
                    Perth                          28-32
                    Canberra                          26-29

Return on Investment from a 7kW Solar System

Self-consumption is one of the most important factors that must be taken into account before thinking about payback. This means the electricity used by your home will decide how much amount you’re going to get in return. For example, if your system generates electricity, there is no need for you to import it from the grid. Rather, if the system is producing more electricity than what is required for household usage, you may export that to the grid. In this way, you will not only be able to save money but you can earn more money as well in return. Since a 7kW solar system is of a bigger size, you can earn more with it if you let it work effectively.

Want to talk to Australia’s most trusted Solar retailer?

At AusPac Solar, we think it’s important to provide our customers with the highest quality solar installations and electrical work that come with the promise of ongoing servicing and maintenance support.

If you would like to discuss any of the points above or you are just wanting to engage with a genuine, customer-focused solar company that will deliver a Solar Panel Installation at a fair and reasonable price, give our friendly team a call on 1300 197 237 or contact us here and one of our solar experts will be in touch.