GROWATT APX S1 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 | |
|---|---|---|---|---|---|---|
| APX 5.0P-S1 | 4.5 kWh | 5 kWh | Listing expired until 1 November 2026 | – | – | |
| APX 10.0P-S1 | 9 kWh | 10 kWh | Listing expired until 1 November 2026 | – | – | |
| APX 15.0P-S1 | 13.5 kWh | 15 kWh | Listing expired until 1 November 2026 | – | – | |
| APX 20.0P-S1 | 18 kWh | 20 kWh | Listing expired until 1 November 2026 | – | – | |
| APX 25.0P-S1 | 22.5 kWh | 25 kWh | Listing expired until 1 November 2026 | – | – | |
| APX 30.0P-S1 | 27 kWh | 30 kWh | Listing expired until 1 November 2026 | – | – |
Source: CEC approved batteries list via the Clean Energy Regulator. Always check the exact model number on your quote.
APX 5.0P-S1: rebate by install date
Questions
Is the GROWATT APX S1 eligible for the federal battery rebate?
Not at the moment. The listings for the GROWATT APX S1 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 GROWATT APX S1?
For the APX 5.0P-S1 (4.5 kWh usable), about $1,140 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 APX 5.0P-S1 would get about $950, $190 less. The date that counts is when it's installed and commissioned.