What You’ll See

At the heart of this page is a doughnut chart that breaks down the total volume of installed solar systems by state and territory. The figures reflect the total installed capacity (in kilowatts, kW) under the Small-scale Technology Certificates (STCs) scheme for 2025 only.

Each state is shown alongside:

• Its total installed volume (kW) for the year
• Its percentage of the national total, making it easy to gauge market share at a glance

This combination of numbers and proportions helps you understand not just which states are installing more solar, but how their efforts compare to the rest of the country.

Filter by System Size

You can explore the data even further by filtering the chart based on system size segments:

• 0–100kW All STC – View all eligible small-scale installations
• 0–15kW Residential – Focus on home installations, ideal for residential solar market insights
• 15–40kW Small Commercial – See how small businesses are contributing
• 40–100kW Medium Commercial – Track growth in larger commercial installations

These filters help tailor the insights to your interests. Whether you’re tracking the residential boom in Victoria or commercial adoption in Queensland, this page makes it easy to isolate and understand the trends.

Key Insights You Can Discover

This breakdown helps answer important questions like:

• Which states are leading solar adoption in 2025?
• How does each region’s solar activity compare in volume and market share?
• Where are the strongest segments of growth—residential or commercial?

With data for all eight states and territories, including NSW, QLD, VIC, SA, WA, ACT, TAS, and NT, this view highlights both major contributors and emerging markets.

Data Scope

Please note: all figures on this page represent installations completed in 2025 only. This ensures a focused, real-time view of how the market is performing this year — not a cumulative total from previous years.