Australian households have driven a record-breaking surge in clean energy adoption, installing an unprecedented 1.89 gigawatts (GW) of new rooftop solar capacity and 276,011 home batteries in the first half of 2026. This monumental uptake, detailed in the Clean Energy Council’s (CEC) latest bi-annual Rooftop Solar and Storage Report, marks the strongest six-month period for rooftop solar installations since 2021 and significantly outpaces industry forecasts.
The report, released around late September and early October 2026, highlights a 41% year-on-year increase in rooftop solar capacity and a 52% rise in battery installations compared to the preceding six months. The rapid deployment underscores a growing national commitment to energy independence and lower power bills, with rooftop solar now contributing almost 13% of Australia’s total power generation.
Battery Storage Accelerates Beyond Solar
Perhaps the most striking finding from the CEC report is the accelerating pace of home battery installations. Between January and June 2026, battery deployments outstripped solar panel installations, with 153 batteries added for every 100 new rooftop solar systems. This trend reflects a strategic shift among Australian energy consumers to maximise self-consumption of their generated solar power and reduce reliance on grid electricity during peak pricing periods.
“The historic growth in household renewables is a win for both consumers and the country, delivering value and reliability for Australians and greater security for our nation’s energy supply.” – Jackie Trad, CEC Chief Executive Officer
The federal government’s Cheaper Home Batteries Program, launched in July 2025, has been a significant catalyst for this growth. The program, which offers an upfront discount via Small-scale Technology Certificates (STCs), supported 457,439 installations and added 12.9 gigawatt-hours (GWh) of consumer storage capacity within its initial 12 months. This incentive currently equates to approximately $252 per usable kWh for the first 14 kWh of battery capacity, translating to an estimated $3,528 discount off a standard 14 kWh home battery system.
While the program’s STC factor saw adjustments in May 2026, introducing a tiered rebate structure and a faster step-down schedule, the overall impact has been a sustained boost in battery adoption. Homeowners considering battery storage should be aware that the STC factor is set to decline further from January 1, 2027, reducing the upfront discount. Securing installation before this date could lock in greater savings. For a comprehensive guide on available support, see our article on Your 2026 Guide: Claim Up To $15,000 in Energy Rebates Across Australia.
Exceeding AEMO’s Projections
The sheer volume of new rooftop solar and battery installations is now surpassing even the most optimistic projections. According to the CEC report, at current installation rates, rooftop solar capacity in the National Electricity Market (NEM) is expected to reach 40.3 GW by 2029-30, exceeding the Australian Energy Market Operator’s (AEMO) 2026 Integrated System Plan (ISP) forecasts by 13%.
Consumer battery storage capacity is projected to reach an even more impressive 59.2 GWh by 2029-30, a substantial 79% above AEMO’s 2026 ISP projections. This rapid expansion of distributed energy resources is fundamentally reshaping Australia’s energy landscape, contributing to grid stability and alleviating pressure on centralised generation, particularly during peak demand periods. This shift is a key factor behind lower wholesale electricity prices and reduced price volatility.
State-by-State Performance Highlights
The first half of 2026 saw record rooftop solar capacity additions across six of Australia’s eight states and territories. This widespread growth demonstrates a national trend rather than isolated regional activity. The average size of newly installed rooftop solar systems also continued its upward trajectory, reaching a six-month rolling average of 10.45 kW by June 2026, up from 10.00 kW a year earlier.
The increasing adoption of larger systems, coupled with battery storage, empowers households to significantly reduce their reliance on grid electricity. This transition to a more electrified home, combined with smart energy management, offers substantial long-term savings. To understand the broader financial benefits of moving away from gas, readers can explore Electrify Your Home in 2026: Real Costs, Rebates & Savings Up to $15,000+.
The Future of Distributed Energy
The robust growth in residential solar and battery installations signals a clear path towards a more decentralised and resilient energy system for Australia. The collective impact of millions of rooftop solar systems and home batteries is transforming the grid, providing essential support and reducing the need for costly infrastructure upgrades. This distributed energy model offers consumers greater control over their energy consumption and costs, while contributing to the nation’s ambitious renewable energy targets.
As the Clean Energy Council notes, Australia’s rooftop solar and battery fleet is now one of the largest distributed energy resources globally, with over 4.4 million photovoltaic systems across approximately 11 million households. This momentum is expected to continue, driven by ongoing financial incentives and the increasing economic benefits of generating and storing one’s own clean energy. For those considering complete energy independence, our guide on Off-Grid Solar Costs Australia 2026: Your $25,000+ Guide to Energy Independence provides further insights.