CESC Mars HV5-01 battery rebate
4 of 4 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 | |
|---|---|---|---|---|---|---|
| Mars HV5-01-2 | 9.54 kWh | 10.6 kWh | Approved until 31 December 2027 | $2,432 | $2,052 | Rebate · How long it lasts |
| Mars HV5-01-3 | 14.31 kWh | 15.9 kWh | Approved until 31 December 2027 | $3,648 | $3,040 | Rebate · How long it lasts |
| Mars HV5-01-4 | 19.08 kWh | 21.2 kWh | Approved until 31 December 2027 | $4,370 | $3,686 | Rebate · How long it lasts |
| Mars HV5-01-5 | 23.85 kWh | 26.5 kWh | Approved until 31 December 2027 | $5,130 | $4,294 | Rebate · How long it lasts |
Source: CEC approved batteries list via the Clean Energy Regulator. Always check the exact model number on your quote.
Mars HV5-01-4: rebate by install date
Questions
Is the CESC Mars HV5-01 eligible for the federal battery rebate?
Yes. 4 of the 4 CESC Mars HV5-01 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 CESC Mars HV5-01?
For the Mars HV5-01-4 (19.08 kWh usable), about $4,370 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 Mars HV5-01-4 would get about $3,686, $684 less. The date that counts is when it's installed and commissioned.