Australian Solar & Battery Rebate Calculator
SRES + CHBP (federal, Australia-wide) and PDRS (NSW only) can be stacked when the system meets every requirement. Enter your system parameters for an instant estimate.
Estimated total incentive
$10,840 AUD
System parameters
Inverter rated power
units
20 kW × 1 = 20 kW AC
Battery rated capacity
Rated: 15 kWh · Usable (90%): 13.5 kWh
Project type (determines the PDRS activity)
DC/AC ratio (max 133%)125%
NSW site (PDRS eligibility)Yes
2026 deeming period5 years
Federal · Australia-wide
SRES solar incentive
PV size × zone rating × deeming period → STCs
$6,880 AUD
Eligible
floor(25 kW × 1.382 × 5) = 172 STCs
- Zone rating
- 1.382 (Zone 3)
- PV size
- 25 kW DC
- Deeming period
- 5 years
- STCs (rounded down)
- 172
- STC price
- $40 AUD
- Subtotal
- $6,880 AUD
Federal · Australia-wide
CHBP home battery incentive
5–100 kWh batteries, tiered over the first 50 kWh
$3,960 AUD
Eligible
6.8 STCs per kWh, de-rated by tier.
- Rated capacity
- 15 kWh
- Usable capacity (90%)
- 13.5 kWh
- Capacity counted
- 15 kWh
- 0 – 14 kWh (full rate)
- 14 kWh → 95 certs
- 14 – 28 kWh (x0.6)
- 1 kWh → 4 certs
- Battery STCs total
- 99
- STC price
- $40 AUD
- Subtotal
- $3,960 AUD
NSW only
PDRS peak demand incentive
Available for NSW postcodes with a battery inside the BESS3–BESS5 range.
$0 AUD
Not eligible
Battery capacity is outside the range for the selected project type.
- Activity
- —
- 1. Counted capacity B
- 0 kWh
- 2. DSC coefficient
- —
- 3. Peak demand savings (DSC)
- 0 kW
- 4. Lifetime PDSC (DSC × 6 hrs × 15 yrs)
- 0 kWh
- 5. Network loss factor
- 1.04
- 6. Firmness factor
- 1
- 7. PRCs = floor(PDSC × NLF × 10 × Firmness)
- 0
- PRC price
- $2.5 AUD
- Subtotal
- $0 AUD
Result breakdown
- SRES (solar STCs)
- $6,880 AUD
- CHBP (battery STCs)
- $3,960 AUD
- PDRS (NSW PRCs)
- $0 AUD
- Total stacked incentive
- $10,840 AUD
Compliance checks
- Battery capacity is outside the PDRS (BESS3–BESS5) range for the selected project type.
Estimate only. Final subsidy value fluctuates with market price and installer administration fees.
Questions? Contact academy@solinteg.com