A leading energy solutions provider says households are more motivated than ever to install larger home battery systems as the federal government makes sweeping changes to the Cheaper Home Batteries Rebate.
VoltX Energy Chief Operating Officer David Sedighi says since January 1, the subsidy rate has been reduced by around 10% or more than $1000 for a 30kWh system but it’s a wider scale back to the program from May which is driving increased demand.
“The financial impact of these changes on households will be significant and will equate to thousands of dollars in lost savings,” Mr Sedighi says.
“Since the start of the year, the subsidy rate has been cut from 9.3 Small-scale Technology Certificates (STC) per usable kilowatt hour to 8.4 certificates. Each of those certificates is worth $38 so for an average 30kWh battery that adds up to $684 less.
“However from May, the changes will be tiered and see the rate of certificates drop again from 8.4 to 6.8, while only the first 14 kWh will qualify for the full 100% of the rebate. The next 14 kWh, up to 28 kWh will be given at 60% and then dropping to just 15% for any battery size over 28 kWh.
“In dollar terms someone who installed a 30 kWh battery before January received a $10,602 rebate, whereas someone installing after May will receive half that ($5,852),” Mr Sedighi says.
VoltX Energy is seeing a spike in households putting down deposits this month to ensure they can maximise the rebate, with many opting for larger systems from the get go before the more significant changes take effect.
“Australians who might have been sitting on the fence are now investing in larger home battery set ups, with data showing the average household is now opting for a 40 kWh system, which is four times larger than the 10 kWh batteries that dominated the market just 12 months ago. People are thinking about longer-term solutions,” he says.
Australia’s cheaper home battery program has been a victim of its own success, with around 160,000 households installing a battery in the last six months of 2025 alone, which is double what the government forecast.
“The average Australian family uses about 15 kWh a day, so a 40 kWh battery can power an average home for up to two and a half days without drawing on the grid, helping reduce power bills and achieve energy independence,” Mr Sedighi says.
“While electricity bills are eliminated immediately, it takes between 1.5 to 4 years for the battery system to have paid for itself. The rebate accelerates the return, which is why many people are moving quickly.”
Before committing to a home battery system, Mr Sedighi recommends consumers take the time to do their research before signing a contract.
“Check warranties and product authenticity and what their after-sales support looks like. Most importantly, make sure they are an NETCC approved retailer.
“This will help avoid costly mistakes. Choosing the right battery is one thing, but choosing the right company is just as important,” he says.
“Asking the right questions upfront and confirming the details in writing can save people thousands of dollars and give them peace of mind that they’re dealing with a reputable company”, says Mr Sedighi.
For more information on VoltX Energy Battery Systems, visit https://voltxenergy.com.au/
About VoltX Energy: Voltx Energy is Australia’s leading on-grid and off-grid power system solutions provider. It is an extension of VoltX, a brand that was founded in 2018 to provide consumers with portable energy solutions. Based in Sydney, VoltX Energy continues to innovate in the renewable energy sector, making clean energy accessible for all.
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