The Albanese Government’s Cheaper Home Batteries Program was designed to encourage Australians to install home energy storage systems. Running until 2030, the program offers upfront discounts on eligible battery systems, helping households make the switch to solar plus storage. But the program’s popularity and other factors suggest it may end sooner than originally planned.
Unprecedented uptake and funding pressures
Since its launch, the Cheaper Home Batteries Program has seen an uptake rate far exceeding expectations. By early September 2025, between 43,517 and 44,865 batteries had already been installed and claimed under the scheme. The average battery size, at 18.2 kWh, is considerably larger than the program’s initial assumption of around 10–12 kWh per household.
This combination of high uptake and larger-than-expected systems has placed significant pressure on the program’s $2.3 billion budget. The government had projected gradual adoption, but early demand has already consumed a notable portion of the allocated funds. While the program is intended to run until 2030, this pace of adoption raises the possibility that funds could be exhausted by late 2027 or early 2028.
How declining STC values affect rebates
The Cheaper Home Batteries Program relies partly on Small-scale Technology Certificates (STCs) to calculate rebate amounts. STCs are created for renewable energy installations and decrease in value over time due to a shortening deeming period and changing market conditions.
In 2025, STC values are around $372 per kWh. But these values are set to decline gradually each year, meaning that the upfront rebate for households will reduce over time. Early adopters have maximised their rebate benefits, while future participants will see smaller discounts, potentially reducing the program’s attractiveness.
This gradual decrease, combined with high initial uptake, suggests that households who delay installation could face higher out-of-pocket costs or longer payback periods.
Supply chain and battery availability challenges
Another factor influencing the program’s timeline is the availability of batteries. The surge in demand has coincided with global supply chain constraints for lithium-ion cells, leading to longer wait times and price fluctuations. Some installers are reporting delays of several months for popular battery models, while wholesale prices remain volatile.
If battery supply cannot keep pace with demand, it may slow the installation rate, giving the program more time to stretch its funds. However, limited availability could also discourage potential buyers, particularly households outside major metropolitan areas where installer networks are smaller. Additionally, many installers are forecasting stock availability well into 2026, meaning that some homeowners will already be facing the reduced STC value, which kicks in from 1 January 2026.
Early adopters vs. mainstream uptake
The initial uptake has been dominated by early adopters – households keen to benefit from rebates as soon as the program opened. These enthusiasts often have higher energy needs, are more likely to invest in larger systems, and are well-informed about government incentives.
As this cohort largely completes their installations, uptake from mainstream households is expected to slow. While this tapering effect may extend the program’s life, it also means the early rush has already consumed a significant proportion of the budget.
Regional differences and installer capacity
Uptake also varies by state and region. South Australia and New South Wales have seen particularly strong interest, driven by high electricity prices and incentives from state-level programs. In contrast, some rural regions are slower to adopt due to installer scarcity and higher shipping costs.
Installer capacity is another consideration. Even if households are willing to pay for batteries without a rebate, the limited number of accredited installers may bottleneck installations, affecting the program’s overall timeline.
Projected program end date
Factoring in the rapid initial uptake, the declining STC rebate, supply constraints, and slower mainstream adoption, it is realistic to expect the Cheaper Home Batteries Program could reach full expenditure by late 2027 or early 2028. This is two to three years earlier than the official 2030 end date.
Households planning to install batteries should consider acting sooner to take advantage of the higher rebates and ensure timely installation. Waiting too long could result in smaller discounts, longer wait times, or missing out altogether if funding is exhausted.
What this means for Australians
For homeowners, the accelerated timeline highlights the importance of planning and early action. Installing a solar battery now not only maximises financial benefits but also contributes to household energy independence, grid stability, and emissions reductions.
For the clean energy industry, the program’s popularity demonstrates strong market demand and the potential for private investment to continue scaling battery adoption beyond government incentives.
Conclusion
The Cheaper Home Batteries Program was intended to run until 2030, but a combination of faster-than-expected uptake, larger battery systems, declining STC values, supply chain challenges, and reduced post-enthusiast uptake makes an earlier end likely. Households interested in benefiting from rebates should act sooner rather than later to secure the greatest savings and energy security.
With the right timing and planning, Australians can make the most of the program while contributing to the nation’s clean energy future. Energy Matters recommends contacting installers now to lock in battery installations for late 2025/early 2026 and maximise your savings. Click the button below for up to 3 free quotes from installers in your area.
