Alpha ESS SMILE-B3-PLUS battery rebate
None of these models is currently on the approved list. Rebates below assume installation in May–Dec 2026 at $38 per STC.
Models and rebates
| Model | Usable | Nominal | Listing | Rebate now | From Jan–Jun 2027 | |
|---|---|---|---|---|---|---|
| SMILE-B3-PLUS (AS4777-2 2020) | 4.79 kWh | 5.04 kWh | Listing expired until 19 August 2026 | – | – | |
| SMILE-B3-PLUS II (AS4777-2 2020) | 9.58 kWh | 10.08 kWh | Listing expired until 19 August 2026 | – | – | |
| SMILE-B3-PLUS III (AS4777-2 2020) | 14.36 kWh | 15.12 kWh | Listing expired until 19 August 2026 | – | – | |
| SMILE-B3-PLUS IV (AS4777-2 2020) | 19.15 kWh | 20.16 kWh | Listing expired until 19 August 2026 | – | – | |
| SMILE-B3-PLUS V (AS4777-2 2020) | 23.94 kWh | 25.2 kWh | Listing expired until 19 August 2026 | – | – | |
| SMILE-B3-PLUS VI (AS4777-2 2020) | 28.73 kWh | 30.24 kWh | Listing expired until 19 August 2026 | – | – |
Source: CEC approved batteries list via the Clean Energy Regulator. Always check the exact model number on your quote.
SMILE-B3-PLUS (AS4777-2 2020): rebate by install date
Questions
Is the Alpha ESS SMILE-B3-PLUS eligible for the federal battery rebate?
Not at the moment. The listings for the Alpha ESS SMILE-B3-PLUS models shown here have expired, so they don't currently qualify. Ask your installer whether a newer model is listed.
How much is the rebate on a Alpha ESS SMILE-B3-PLUS?
For the SMILE-B3-PLUS (AS4777-2 2020) (4.79 kWh usable), about $1,216 if installed in May–Dec 2026, at $38 per STC. The table above shows every model.
What happens on 1 January 2027?
The STC factor drops from 6.8 to 5.7. The same SMILE-B3-PLUS (AS4777-2 2020) would get about $1,026, $190 less. The date that counts is when it's installed and commissioned.