Understanding the dynamics of Australia’s rapidly evolving energy landscape requires granular insights, particularly within the crucial sub-100kW solar installation market.
The newly released Q1 2025 Postcodes Report from Solar Nerds provides this business intelligence, mapping installation trends across the nation based on Small-scale Technology Certificate (STC) data sourced via the Clean Energy Regulator.
This report offers energy professionals, project developers, and asset owners a clear view of where solar uptake is booming, and which regions are showing significant shifts quarter-on-quarter.
National installation leaders emerge in Q1
The first quarter of 2025 saw specific postcodes dominate the national leaderboard for solar installation volume (systеms ≤100kW).
Victoria’s 3029 postcode led the quarter with 444 systеms installed, followed by Queensland’s 4740 (324 systеms) and New South Wales’ 2765 (347 systеms).
These figures underscore continued growth in key residential and commercial hubs across the eastern states.
For businesses seeking opportunities, this postcode-level data provides detailed and actionable market analysis from Solar Nerds.
State-level insights: VIC, NSW and QLD power ahead
Victoria and New South Wales remain dominant, with postcodes 3029 (VIC) and 2765 (NSW) topping their respective charts.
Queensland also recorded strong activity, with postcodes 4740, 4655 and 4670 ranking as the state’s top three installers.
Tracking growth: Identifying high-potential zones
Beyond installation volume, understanding quarterly variation is critical for strategy and planning.
The Q1 report highlights postcodes with the most significant growth.
South Australia’s 5120 postcode recorded the highest quarterly increase at 48.28 per cent.
Queensland postcodes 4115 (47.80 per cent) and 4560 (43.23 per cent) also ranked among the top national growth zones.
Analysing these trends helps businesses identify emerging opportunities and align their plans with broader grid integration efforts tracked by the Australian Energy Market Operator (AEMO).
Informing strategy in the energy transition
As Australia works toward its renewable energy goals, reliable data remains essential.
Reports like Solar Nerds’ Q1 2025 edition are critical for solar retailers, installers, manufacturers, and financiers seeking to optimise their operations.
This intelligence supports better decision-making, resource allocation, and the identification of priority markets.
These insights ultimately contribute to the clean energy transition goals supported by the Clean Energy Council and other key industry bodies.
Access the full report
The Q1 2025 Postcodes Report provides a comprehensive breakdown of solar installation statistics (systеms ≤100kW) for every state and territory, including installation volumes, systеm counts, and growth/drop leaderboards.
Download the full report from Solar Nerds today to gain a competitive edge with the latest market intelligence.
(Disclaimer: Report statistics are based on STC registration data from the Clean Energy Regulator. Actual installation dates may vary. Data covers systеms 100kW and less.)
Subscribe to Energy Today for the latest project and industry news.