ENPHASE IQ Battery 5P with FlexPhase battery rebate
10 of 10 models are on the approved list. Rebates below assume installation in May–Dec 2026 at $38 per STC. The earliest listing expiry is 31 December 2027.
Models and rebates
| Model | Usable | Nominal | Listing | Rebate now | From Jan–Jun 2027 | |
|---|---|---|---|---|---|---|
| IQBATTERY-5P-3P-INT-1.65-1P (AS4777-2 2020) | 5 kWh | 5 kWh | Approved until 31 December 2027 | $1,292 | $1,064 | Rebate · How long it lasts |
| IQBATTERY-5P-3P-INT-1.84-3P (AS4777-2 2020) | 5 kWh | 5 kWh | Approved until 31 December 2027 | $1,292 | $1,064 | Rebate · How long it lasts |
| IQBATTERY-5P-3P-INT-2.50-1P (AS4777-2 2020) | 5 kWh | 5 kWh | Approved until 31 December 2027 | $1,292 | $1,064 | Rebate · How long it lasts |
| IQBATTERY-5P-3P-INT-2.50-3P (AS4777-2 2020) | 5 kWh | 5 kWh | Approved until 31 December 2027 | $1,292 | $1,064 | Rebate · How long it lasts |
| IQBATTERY-5P-3P-INT-3.00-1P (AS4777-2 2020) | 5 kWh | 5 kWh | Approved until 31 December 2027 | $1,292 | $1,064 | Rebate · How long it lasts |
| IQBATTERY-5P-3P-INT-3.00-3P (AS4777-2 2020) | 5 kWh | 5 kWh | Approved until 31 December 2027 | $1,292 | $1,064 | Rebate · How long it lasts |
| IQBATTERY-5P-3P-INT-3.68-1P (AS4777-2 2020) | 5 kWh | 5 kWh | Approved until 31 December 2027 | $1,292 | $1,064 | Rebate · How long it lasts |
| IQBATTERY-5P-3P-INT-3.68-3P (AS4777-2 2020) | 5 kWh | 5 kWh | Approved until 31 December 2027 | $1,292 | $1,064 | Rebate · How long it lasts |
| IQBATTERY-5P-3P-INT-3.84-1P (AS4777-2 2020) | 5 kWh | 5 kWh | Approved until 31 December 2027 | $1,292 | $1,064 | Rebate · How long it lasts |
| IQBATTERY-5P-3P-INT-3.84-3P (AS4777-2 2020) | 5 kWh | 5 kWh | Approved until 31 December 2027 | $1,292 | $1,064 | Rebate · How long it lasts |
Source: CEC approved batteries list via the Clean Energy Regulator. Always check the exact model number on your quote.
IQBATTERY-5P-3P-INT-3.00-3P (AS4777-2 2020): rebate by install date
Questions
Is the ENPHASE IQ Battery 5P with FlexPhase eligible for the federal battery rebate?
Yes. 10 of the 10 ENPHASE IQ Battery 5P with FlexPhase 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 ENPHASE IQ Battery 5P with FlexPhase?
For the IQBATTERY-5P-3P-INT-3.00-3P (AS4777-2 2020) (5 kWh usable), about $1,292 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 IQBATTERY-5P-3P-INT-3.00-3P (AS4777-2 2020) would get about $1,064, $228 less. The date that counts is when it's installed and commissioned.