GROWATT APX S2 battery rebate
12 of 12 models are on the approved list. Rebates below assume installation in May–Dec 2026 at $38 per STC. The earliest listing expiry is 30 November 2026.
Models and rebates
| Model | Usable | Nominal | Listing | Rebate now | From Jan–Jun 2027 | |
|---|---|---|---|---|---|---|
| APX 5.0P-S2 | 4.5 kWh | 5 kWh | Expiring soon until 30 November 2026 | $1,140 | – | Rebate · How long it lasts |
| APX 5.0P-S2 AU | 5 kWh | 5 kWh | Approved until 31 December 2027 | $1,292 | $1,064 | Rebate · How long it lasts |
| APX 10.0P-S2 | 9 kWh | 10 kWh | Expiring soon until 30 November 2026 | $2,318 | – | Rebate · How long it lasts |
| APX 10.0P-S2 AU | 10 kWh | 10 kWh | Approved until 31 December 2027 | $2,584 | $2,166 | Rebate · How long it lasts |
| APX 15.0P-S2 | 13.5 kWh | 15 kWh | Expiring soon until 30 November 2026 | $3,458 | – | Rebate · How long it lasts |
| APX 15.0P-S2 AU | 15 kWh | 15 kWh | Approved until 31 December 2027 | $3,762 | $3,154 | Rebate · How long it lasts |
| APX 20.0P-S2 | 18 kWh | 20 kWh | Expiring soon until 30 November 2026 | $4,218 | – | Rebate · How long it lasts |
| APX 20.0P-S2 AU | 20 kWh | 20 kWh | Approved until 31 December 2027 | $4,522 | $3,800 | Rebate · How long it lasts |
| APX 25.0P-S2 | 22.5 kWh | 25 kWh | Expiring soon until 30 November 2026 | $4,902 | – | Rebate · How long it lasts |
| APX 25.0P-S2 AU | 25 kWh | 25 kWh | Approved until 31 December 2027 | $5,320 | $4,446 | Rebate · How long it lasts |
| APX 30.0P-S2 | 27 kWh | 30 kWh | Expiring soon until 30 November 2026 | $5,624 | – | Rebate · How long it lasts |
| APX 30.0P-S2 AU | 30 kWh | 30 kWh | Approved until 31 December 2027 | $5,852 | $4,902 | Rebate · How long it lasts |
Source: CEC approved batteries list via the Clean Energy Regulator. Always check the exact model number on your quote.
APX 20.0P-S2: rebate by install date
Questions
Is the GROWATT APX S2 eligible for the federal battery rebate?
Yes. 12 of the 12 GROWATT APX S2 models are on the Clean Energy Council approved batteries list as at 9 November 2026. The exact model number on your quote must match one on the list on your installation date.
How much is the rebate on a GROWATT APX S2?
For the APX 20.0P-S2 (18 kWh usable), about $4,218 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 20.0P-S2 would get about $3,534, $684 less. The date that counts is when it's installed and commissioned.