NSW battery rebate calculator
By Sithum Imarsha Last reviewed
A 13.5 kWh battery in New South Wales gets about $3,367 off if it is installed between 1 May and 31 December 2026, and pays back in about 8.1 years at our default NSW rates.
Your result
Federal rebate
$3,367
13.5 weighted kWh × 6.8 = 91 STCs × $37
Batteries must be 5–100 kWh nominal.
- Price before rebate
- $12,150
- Cost after rebate
- $8,783
- Saving in year one
- $1,086
- Simple payback
- 8.1 years
- With battery wear
- 9 years
- Rates used
- 33.1c/kWh import
5c/kWh feed-in
Next change 1 January 2027. The same battery gets $2,812 (−$555).
Fix the highlighted field to update.
How we calculated this
- The rebate is the certificates (STCs) the battery earns, times the certificate price.
- The certificates come from the usable capacity that counts and the factor for the install date.
- Payback divides the cost after the rebate by the first-year saving at the electricity rates on this page.
Check the battery qualifies
13.5 kWh qualifiesdoes not qualify
Find the STC factor
May – Dec 2026: 6.8
Weight the capacity
13.5 kWh
Count the certificates
91 STCs(not eligible)
Value the certificates
91 × $37 = $3,367
Work out payback
$8,783 ÷ $1,086 = 8.1 years
This version starts with our default New South Wales rates. Change any number to match your own bill.
Battery schemes in New South Wales
Virtual power plant (VPP) incentive
Virtual power plant payment · Open · NSW Government
It is an upfront payment for connecting a home battery to a virtual power plant. The amount depends on the battery capacity made available to the grid, up to 28 kWh. The NSW Government page gives no dollar figure. The battery must be from 2 to 50 kWh in size. The incentive can be claimed once per National Metering Identifier (NMI). It can be used with the federal battery discount.
Source: NSW Government, Virtual power plant (VPP) incentive page: "Available now. No current closing date."
Home Energy Saver loan
Loan · Open · NSW Government
It is a zero-interest loan of up to $15,000, repaid over up to 10 years. A home battery is on its list of approved upgrades. Home Energy Saver was announced on 17 June 2026. It is for homeowners and landlords with a combined household income of up to $210,000. The battery must go in at a site that also has solar panels. It can be used with the federal battery discount.
Source: NSW Government, Home Energy Saver page (updated 7 August 2026) and its loan guidelines
Peak Demand Reduction Scheme battery installation discount
Discount · Closed · NSW Government
This NSW discount is no longer available for home and business owners. An install had to be completed before 1 July 2025.
The NSW Government's VPP incentive page says it provides upfront discounts on batteries for apartment buildings and businesses. Source: NSW Government, Virtual power plant (VPP) incentive page
Official source. Checked 1 October 2026.
The calculator on this page shows the federal discount only. It adds nothing from these NSW schemes.
| Usable size | Saving in year one | Simple payback | Payback with battery wear |
|---|---|---|---|
| 5 kWh | $402 | 8.1 years | 9 years |
| 8 kWh | $643 | 8.1 years | 9 years |
| 10 kWh | $804 | 8.1 years | 9 years |
| 13.5 kWh | $1,086 | 8.1 years | 9 years |
| 16 kWh | $1,287 | 8.2 years | 9 years |
| 20 kWh | $1,609 | 8.5 years | 10 years |
| 30 kWh | $2,413 | 8.8 years | 10 years |
| 40 kWh | $3,217 | 9.3 years | 11 years |
Each row is for a battery installed between 1 May and 31 December 2026, at our default price of $900 per usable kWh before the rebate. Each row assumes 0.8 cycles a day, 90% round-trip efficiency and 2% battery wear a year: the defaults of the calculator on this page. Our default NSW rates are 33.1c/kWh to buy power (Dated third-party source: Canstar market average, 4 Sep 2026 (our mean of its Ausgrid, Endeavour Energy and Essential Energy rows)) and 5c/kWh for the solar you export (Estimate: WattMaths rounded pick. EnergyPlans (July 2026) lists retailer feed-in rates, not one state figure). New South Wales has the third highest first-year saving of the 7 states and territories in our calculator, each at its default rates.
New to the rebate? Read the full guide on the main battery rebate calculator.
Questions
How does the NSW battery rebate work?
The main discount is the federal one, taken off your installer’s price. NSW adds the Home Energy Saver loan. It is a zero-interest loan of up to $15,000, repaid over up to 10 years. A home battery is on its list of approved upgrades. Home Energy Saver was announced on 17 June 2026. It is for homeowners and landlords with a combined household income of up to $210,000. The battery must go in at a site that also has solar panels. It is a loan, not a rebate.
Has the NSW battery rebate ended?
The Peak Demand Reduction Scheme battery installation discount has. This NSW discount is no longer available for home and business owners. An install had to be completed before 1 July 2025. The NSW Virtual power plant (VPP) incentive is still open, and the federal discount still applies.