Australia’s popular home battery subsidy scheme is getting a major financial boost, but with an important tweak that will change how larger systems are supported. The federal government has tripled the program’s budget to $7.2 billion over four years, while reducing the generosity of rebates for medium and large battery installations.
Energy Minister Chris Bowen said the changes are designed to keep the scheme running longer and ensure more households can benefit, rather than seeing funds exhausted by oversized systems.
Why the Scheme Is Changing
The subsidy, launched just five months ago, was originally expected to cost $2.3 billion. But soaring demand has pushed spending far beyond early projections. Bowen said the government expects the original allocation to be depleted within a year due to the rapid pace of installations.
“We’ve been installing around 1,000 batteries every working day,” Bowen said, adding that even Saturdays see hundreds of installations. The rush was partly driven by households installing batteries at the maximum subsidised size to maximise the one-off rebate.
What Stays the Same and What Changes
Under the scheme, households and small businesses receive a 30% discount on a home battery installed alongside new or existing rooftop solar. Batteries between 5kWh and 100kWh are eligible, with rebates applied to the first 50kWh.
That headline eligibility will remain. However, Bowen confirmed that while the first 50kWh of a system will still qualify for support, the discount per kilowatt-hour will be reduced for medium and larger batteries.
From 1 May, systems up to 14kWh, typically suitable for smaller households, will continue to receive the full 30% discount for every kWh. For batteries above that size, the rebate will taper off, with further reductions for systems larger than 28kWh.
Encouraging “Right-Sized” Batteries
The government says the new structure is intended to encourage households to install batteries that match their actual energy needs, rather than oversizing to chase subsidies. By staggering the rebates, more households should be able to access the scheme over time.
Bowen highlighted the financial upside for families, noting that a home battery can reduce energy bills by up to 90% for homes with solar, delivering savings of around $1,000 a year. Homes installing solar and batteries together could save roughly $2,000 annually.
Industry Welcomes Stability
The solar and battery industry has broadly welcomed the changes. Jim Hill, chief executive of Nepean Solar Solutions, described the revised approach as a “huge relief,” saying it avoids boom-and-bust cycles that make long-term planning difficult.
The Smart Energy Council also backed the changes, saying spreading benefits more widely was preferable to a small number of households absorbing most of the funding.
According to market estimates, households adding a battery can expect an additional $600 to $900 in yearly energy savings on top of solar benefits.
