The first quarter of 2026 marked a period of robust growth for Australia’s renewable energy sector. National solar PV installations reached 845,600kW across nearly 80,000 systems, reflecting a steady upward trend through March. Simultaneously, the battery market saw massive adoption with over 3.67 million kWh installed. New South Wales emerged as the undisputed leader in both categories, accounting for 30% of the national solar market and a dominant 37.9% of total battery capacity.
The competitive landscape was defined by clear frontrunners in volume and scale. Energybuild secured the top spot on the solar leaderboard, installing 13,374kW and capturing a 1.58% market share. In the battery sector, Solar System Australia led the charge by a significant margin, deploying 98,336kWh across 2,353 systems. These figures reflect a highly fragmented yet rapidly expanding market, where state-led demand continues to drive record-breaking installation volumes nationwide.
For additional solar statistics and insights, take a look at our Solar Nerds reports catalogue.
Quarterly Wrap-up reports
national
national
The solar PV installation increased by almost 10% compared to the same quarter last year. While the average system size for the battery installations is 30.32kWh.
New South Wales
NSW
NSW accounts for 30% of Nationwide’s installed solar PV capacity, whereas it represents 38% of the batteries.
Queensland
QLD
Solar PV installations in QLD grew by 8.49% from the same quarter last year, with the average battery system size being 20.75kWh.
Victoria
VIC
Victoria achieved the third-highest number of solar PV and battery installations nationwide.
Western Australia
WA
This quarter, solar PV installations increased by 15% compared to last year. The average system size for the batteries is 23.40 kWh.
South Australia
SA
South Australia accounts for 8% of the total installed battery capacity nationwide and 10% of solar PV installations.
Australian Capital Territory
ACT
Solar PV installations in ACT have increased by nearly 25% compared to last year. Additionally, ACT accounts for 2% of the nationwide battery installations.
