I’ve been writing about batteries for years, back when they were little more than a pipe dream for most homeowners. Not only are batteries now mainstream, but they’re now being adopted at a pace that rivals solar-only systems. The last 12 months have set Australia down a new track. Home electrification and self-production/consumption are rapidly altering the way we approach electricity in the home. As we near the new financial year, let’s look back at the milestones that have steered us towards a cleaner energy future.
The year batteries went from nice-to-have to necessary
In May 2025, Australia was standing at the edge of a major shift. Rooftop solar had already changed the game, with millions of homes generating their own electricity. What was missing was storage. The Cheaper Home Batteries Program, which began on 1 July 2025, filled that gap by offering around a 30 per cent discount on eligible batteries connected to new or existing solar systems1.
The response from households was immediate and far exceeded expectations. Speaking at the Smart Energy Conference 2026 in Sydney, Climate Change and Energy Minister Chris Bowen revealed that Australia had already installed 380,712 home battery systems under the scheme, representing 10.7 GWh of storage capacity in less than a year2.
Just days later, the industry surpassed another milestone. Australia officially crossed 400,000 home battery installations under the federal rebate program, delivering approximately 11.2 GWh of distributed storage capacity nationwide3.
Bowen described the uptake as faster than the government’s EV incentive schemes. He noted that Australians had embraced home batteries “with gusto”.
The numbers highlight just how rapidly the market has transformed. SunWiz data also shows that 2025 became a record-breaking year for battery adoption. More than 221,000 residential battery systems were installed across Australia during the calendar year alone. That represented a threefold increase in installations and a fivefold increase in installed storage capacity compared with 20244.
For the first time, battery storage stopped being viewed as a premium add-on and became part of mainstream energy planning for households across the country.
Homeowners are changing the way they use energy
For homeowners, the battery boom has fundamentally changed the relationship between households and the grid. For years, Australians exported cheap daytime solar energy back to the grid, only to buy electricity back later at significantly higher evening rates.
Battery storage changed that equation almost overnight.
Households can now store excess solar generation for use during peak demand periods. This reduces reliance on the grid and maintains backup power during outages. Combined with falling feed-in tariffs, rising electricity prices, and the increasing electrification of homes, batteries have become less of a luxury and more of a strategic investment.
This has been especially true for households adopting EVs, induction cooktops, reverse-cycle air conditioning, and heat pump hot water systems. The more electricity a home consumes, the more valuable stored solar energy becomes.
Installers and manufacturers faced enormous demand
The rapid rise in demand created both opportunities and headaches for the renewable energy industry.
For installers, the shift from solar-only systems to solar-plus-battery packages delivered a wave of new business. Many companies expanded staffing, warehousing, training, and after-sales support almost overnight.
However, the pace of adoption also exposed significant pressure points.
Demand quickly outstripped supply, particularly for high-capacity batteries, hybrid inverters, and backup-ready systems. Some installers were booked out months in advance, while distributors struggled to maintain stock levels.
Manufacturers faced their own challenges. Brands with strong Australian support networks, reliable local inventory, and approved products were best positioned to benefit from the surge. Others struggled to keep up with shipping delays, certification requirements, and rapidly changing demand forecasts.
The boom also highlighted ongoing workforce shortages across the industry, particularly for experienced battery installers and electricians qualified to work on increasingly complex energy systems.
Small businesses are embracing batteries and energy independence
The benefits of battery storage have not been limited to households.
Small businesses across Australia have increasingly turned to batteries to reduce operating costs, improve energy resilience, and gain greater control over electricity usage.
For businesses operating during daylight hours, batteries provide the ability to store excess solar generation and reduce expensive evening grid imports. For industries reliant on refrigeration, machinery, IT systems, or climate control, backup capability has also become increasingly valuable.
In many ways, the battery rebate has accelerated a broader shift towards decentralised energy generation across both residential and commercial sectors.
The rebate rollout was not without problems
The year was not without growing pains. The original program was estimated at $2.3 billion, but demand proved much stronger than expected. Government projections for the scheme later expanded to $7.2 billion through to 2030, with expectations that more than 2 million Australian homes could ultimately install battery storage5.
That expansion came with changes. From 1 May 2026, the STC factor dropped from 8.4 to 6.8, with future reductions scheduled every six months. Support also became tiered by battery size6.
The first 14 kWh now receives 100 per cent of the STC factor, capacity above 14 kWh and up to 28 kWh receives 60 per cent, and capacity above 28 kWh and up to 50 kWh receives 15 per cent.
The policy logic is understandable. Larger battery systems should not absorb a disproportionate share of public funding. However, the rollout arguably could have been paced more carefully.
A more gradual and weighted structure from day one may have allowed more households to participate fairly, while reducing the installation bottlenecks, supply shortages, and rebate deadline panic that swept through the industry during late 2025 and early 2026.
Instead, households able to move quickly secured the greatest financial benefit, while many others faced lengthy delays due to stock shortages and installer capacity constraints.
The Clean Energy Regulator also issued warnings to retailers and installers about promising installation timelines they could not realistically deliver. Importantly, rebate eligibility depended on the installation date, not the contract date, creating further pressure across the industry as deadlines approached7.
Australia’s energy future is becoming decentralised
Despite the challenges, the direction Australia is heading is now unmistakable.
The nation is rapidly evolving from a rooftop solar leader into one of the world’s largest distributed battery markets. Home battery systems are helping reduce evening peak demand, improve grid stability, support virtual power plants, and absorb increasing amounts of renewable generation.
This transition will become increasingly important as Australia moves away from coal-fired power and towards a grid dominated by variable renewable energy.
The past 12 months have not solved every issue facing the energy sector. Grid integration, affordability, installer quality, and equitable access still require major attention. However, one thing is now crystal clear: Australians are ready to take control of their energy future.
The battery revolution is no longer coming.
It has arrived.
