Who Led the Australian Solar Market in 2024?

The Australian solar retail market remains highly competitive, with some retailers consolidating market share while new challengers continue to emerge. The 2025 Annual SunWiz PV Market Report provides a detailed analysis of the top-performing solar retailers, their growth trajectories, and the evolving market dynamics shaping their success.

As SunWiz’s Top Solar Company Awards Ceremony draws near, we look at what it takes to rank amongst the largest solar retailers in Australia.

National Leaders in Solar

🏆 Leading Solar Retailer (STC + LGC Combined)

The top-ranked solar retailer secured the #1 position in both the STC and overall solar markets, registering over 100MW of STC capacity in 2024.

(note the yellow highlighted companies rank where they do courtesy of a SunWiz-verified data submission process).

🌟 Fastest Growing Retailers

Several retailers demonstrated rapid expansion, with some doubling in size in 2024.
New entrants to the ranking revealed strong national growth and increasing market penetration.

State-by-State Leaders

📍 State-Specific STC Market Leaders:

NSW: A leading national solar retailer
VIC: A rapidly expanding firm with strong regional sales
QLD: A dominant multi-state retailer with increasing installations
SA: A firm that consistently performs well across various categories
WA, ACT, TAS, NT: Several regionally focused companies emerging as local leaders

Commercial Solar Market Leaders

🏢 Top Players in Commercial Solar

The leading commercial solar retailers installed over 50MW of capacity in 2024.
Several firms established themselves as dominant forces in 15-30kW and 30-100kW market segments.

🔹 Segment-Specific Leaders

Small to mid-scale commercial installations saw increased competition, with multiple retailers securing large portions of the market.
Large-scale (>100kW) projects remained the focus for a select group of national players.

Key Market Trends Among Retailers

📈 Market Consolidation & Fragmentation

The top 50 retailers now capture 22% of the STC market, up from 19.5% in 2022, showing slight consolidation.
Despite this, the Australian solar retail market remains fragmented, with no single company exceeding 3.2% market share.

🚀 Growth Trajectories & New Entrants

Some long-time market leaders continued to perform well, while new challengers emerged as strong competitors.

💡 Multi-State Presence is Key to Success

The top-ranked retailers operate across multiple states, demonstrating that expansion beyond local markets is essential for scaling success.

Final Thoughts

The 2024 Australian solar retail market saw shifts in leadership, emerging challengers, and continued competition across all market segments. As commercial solar expands and battery storage gains traction, the most successful retailers will be those that diversify their offerings and scale strategically.

For a detailed breakdown of top-performing solar retailers, market share trends, and future growth opportunities, purchase the 2025 Annual SunWiz PV Market Report today. Gain exclusive insights into the companies shaping the future of Australia’s solar industry.

Interval Meter Data Tool Disclaimer

The Interval Meter Data Tool is designed to convert standard form meter data for the OpenSolar platform.

Users are responsible for meeting the requirements of the data that needs to be uploaded to the tool, which extends to but is not limited to

The completeness and accuracy of the data
Ensuring that there are no missing records
Uploading the data in one of the compatible intervals (15m, 30m or 1h).

Data uploaded to the Interval Meter Data Tool should not contain multiple datasets. In the case an excel file is uploaded, only the first sheet will be considered.

The accuracy of the output is dependent on the user’s dataset, therefore SunWiz does not guarantee the accuracy of the output.

The user must acknowledge that the output of the tool is beyond the control of SunWiz, and they must ensure that the data is accurate on their own behalf.

In the event that the program runs into an issue, the user will be issued with warnings or solutions to address or resolve the issue.

If the user requires additional support, they can avail it as a separate service from SunWiz

Warranties on performance

The Interval Meter Data tool from SunWiz attempts to convert most frequently occurring types of standard meter data file types in specific formats for the purpose of being used on the OpenSolar platform. Unless mentioned otherwise, SunWiz does not extend any guarantee of any kind, either expressed or implied, on the limited success of the Interval Meter Data Tool and the extent of it’s automation. Depending on the user’s upload, the program may require additional inputs, the training for which is not included in the purchase of this service and can be purchased separately.

Input requirements

The Interval Meter Data Tool accepts data in the 15-minute, 30-minute and 60-minute(hourly) intervals. In case the file is uploaded in an excel format (*.xls, *.xlsx, *.xlsm), only the first sheet of the file will be considered. Our tool is required to accept raw meter data, usually highlighted as ‘E’ data in its standard format; and therefore SunWiz does not guarantee that all data formats will be accepted.

For complete automation, the file must adhere to an acceptable standard format. In the case of an issue, the user will be provided with instructions by the tool on how it can be resolved. Warnings will be issued if the data is incompatible, incomplete with missing records and if multiple datasets are uploaded at once.

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What It Takes to Be a Top Solar Retailer in Australia