Australian Solar System Interest Index (auSSII) August 2017

Australian solar power statistics

We’re very pleased to publish the first in what will be a monthly report on the current state of solar power interest in Australia – the SolarQuotes auSSII report.

The SolarQuotes web site welcomes hundreds of thousands of visitors a month, which results in thousands of solar quotes being issued by pre-vetted installers who are part of the SQ installer network.

This level of activity provides us with interesting insights into what Australians are wanting from solar power and battery storage systems.

So, without further ado, here’s some highlights from activity in Australia during the month of July 2017.

Where Was The Interest?

We saw the most activity in New South Wales in July, which accounted for 34.19% of quote submissions; followed by Victoria (20.86%) and Queensland (17.83%).

Graph - Solar Power System Interest Australia July 2017

System Size Preference

Nationally, 5kW solar systems were the most sought-after during July, comprising more than half of requests where a capacity was specified.

The glory days of the trusty 1.5kW PV system are well and truly over, making up just 2% of specific system size requests.

In 40% of quote requests, Australians indicated they were unsure on system size and requested advice.

Graph - PV system size requested – Australia July 2017

Purchase Intent

Three-quarters of visitors requesting quotes were looking to buy solar power within the next three months, indicating a high degree of motivation.

Graph - Solar panel purchase intent – Australia July 2017

Battery-Ready System Requests

Interest in home battery storage is more geared towards it being a future addition rather than immediate purchase. 10 percent of requests indicated interest in a battery ready solar power system. There was no interest registered in battery-ready systems in the NT.

Graph - Battery ready PV system – Australia July 2017

Solar + Battery Storage Interest

July’s figures reinforce that the battery revolution is yet to really get under way in Australia, with just 6% expressing a serious intent* of installing PV + battery storage from the outset. There was no interest in solar + storage package purchases in the NT.

Graph - Solar + battery interest – Australia July 2017

Battery Size Requirements

For those wanting to install a solar + storage system simultaneously, large battery systems (10 kWh+) were most popular, making up nearly half of all requests where capacity was specified. As with PV system size selection, a large percentage (~47%) requested guidance in this regard.

Image: Battery size – Australia July 2017  

Energy Storage Application

Half of those requesting solar + battery system quotes expressed an intention of using home energy storage to both minimize grid consumption and as a backup power solution.

Graph - Home energy storage application – Australia July 2017

Current Power Bills

46% of Australians who submitted for system quotes during July stated their average electricity bills were between $500 and $1,000 a quarter. Approximately 6% were unsure of how much they spend on electricity.

Graph - Current electricity costs – Australia July 2017

That’s it for the first auSSII report – in the months ahead we’ll be incorporating more data and insights into each publication. The next report will be published in early-mid September. To be notified when new reports are released, subscribe to our weekly newsletter .

If you’re interested in getting 3 quotes from our pre-vetted installers, click here; or browse through some of thousands of solar installer reviews .

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Report Reproduction Guidelines

You are welcome to reproduce graphs and other detail from this report if this page is acknowledged as the source.

* During our solar quoting process, a flag is displayed when PV + batteries are selected; providing details of approximate costs before the submitter can proceed. This helps to ensure the submitter is seriously interested in solar + storage. An alternative option of a “battery-ready” system is also offered at this point.

About Michael Bloch

Michael caught the solar power bug after purchasing components to cobble together a small off-grid PV system in 2008. He's been reporting on Australian and international solar energy news ever since.


  1. Joe Fontaine says

    Michael — great to see these data. Awesome that you all intend to present this regularly to feel the pulse of it all.

    RE: your figures. A couple conventions to increase their quality and visual appeal. I’m a data scientist who loves your website and don’t mean to be a prat.
    1) Round your % to the nearest whole number in the first figure.
    2) Excel’s default setting for graphs is ugly. Once you have a chart formatted how you like it, copy+paste and the formatting will be preserved and then change the data you are feeding into it.
    3) Get rid of gridlines (or at least make them less noticable), increase the font size of the X and Y axes, modify the number of breaks on the Y-axis so they’re more like 25% marks (vs every 10%)

    Hope that is helpful

    • Michael Bloch says

      Hi Joe, sorry for the late response. Thanks for your feedback, I’ll make some changes based on your tips in the next auSSII report.

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