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Sungrow SBR Battery Rebates
Sungrow SBR is a modular solar battery system designed for Australian homes looking to store more of their solar energy and reduce reliance on the grid.
Unlike some fixed-size battery options, the Sungrow SBR can be configured in a range of battery sizes. This gives homeowners greater flexibility to choose a storage capacity that suits their energy usage, budget and future needs.
In 2026, eligible homeowners may still be able to access solar battery rebates. The final rebate value depends on factors such as battery size, installation date, STC value, system design and eligibility requirements.
Sungrow SBR Rebates in 2026
Solar battery rebates remain available in 2026, although the way they are calculated changed from May 2026.
The rebate is now more closely linked to battery size. The first portion of battery capacity receives the highest rebate rate, while additional capacity above that level can still qualify for a rebate at a reduced rate.
This makes the Sungrow SBR a strong option for homeowners because it can be sized to match household energy needs rather than being limited to a single fixed capacity.
Battery Rebate Tiers
From May 2026, the solar batteries rebate is calculated using battery capacity tiers.
| Usable battery capacity | Rebate rate |
| 0-14kWh | 100% |
| 14-28kWh | 60% |
| 28-50kWh | 15% |
The first 14kWh of battery capacity receives the highest level of rebate support.
Capacity above 14kWh can still qualify for a rebate, although it is calculated at a lower rate.
This is why choosing the right Sungrow SBR battery size is important. A smaller battery may maximise rebate value, while a larger battery can provide more stored energy for homes with higher electricity consumption.
STC Value Change
The STC factor also changed in May 2026.
Earlier in 2026, the STC factor was 8.4. From May 2026 onwards, it reduced to 6.8.
| Period | STC factor |
| January – April 2026 | 8.4 |
| May – December 2026 | 6.8 |
This means the estimated rebate value is lower than it was at the beginning of 2026.
The rebate has not ended. It remains available for eligible battery installations, but the value is now calculated using the updated STC factor.
Sungrow SBR Battery Rebate Estimate
The Sungrow SBR supports between 2 and 8 battery modules in a single stack, with each module providing 3.2kWh of usable storage capacity.
Below is an estimated rebate guide for different Sungrow SBR battery sizes.
| Number of modules | Usable capacity | Estimated rebate |
| 2 modules | 6.4kWh | $1,876.95 |
| 3 modules | 9.6kWh | $2,837.25 |
| 4 modules | 12.8kWh | $3,797.55 |
| 5 modules | 16.0kWh | $4,495.95 |
| 6 modules | 19.2kWh | $5,063.40 |
| 7 modules | 22.4kWh | $5,630.85 |
| 8 modules | 25.6kWh | $6,198.30 |
Additional modules may be added to increase battery capacity and access rebates up to 50kWh, subject to system design, Sungrow compatibility, installation requirements and rebate eligibility.
SolarBright’s solar battery rebate calculator can help you estimate how much you may be able to save.
Install Sungrow SBR with SolarBright
SolarBright was recognised with the 2025 Sungrow Top Installer Award, reflecting extensive experience with Sungrow solar and battery systems.
When you install with SolarBright, you may also be eligible for a Sungrow reseller discount on Sungrow SBR battery installations, providing additional value on top of available battery rebate support.
Talk to SolarBright About Sungrow SBR Rebates
Thinking about installing a Sungrow SBR battery?
Speak with a SolarBright battery specialist or book a free SBR consultation today.
