What rebate does a 13.5 kWh battery get?
Installed by 31 December 2026, a 13.5 kWh battery (as big as one Tesla Powerwall 3) earns 91 certificates. Each one is worth up to $40, so your installer takes $3,640 off the quote. All of its capacity is within the 14 kWh full-rate band.
Put in from 1 January 2027, it gets 76 certificates instead, about $3,040, since each kWh earns a little less after every half-yearly step down.
The 13.5 kWh rebate, state by state
The federal part is identical in every state. Two states give more. Western Australia pays $1,300 to Synergy customers or $3,800 to Horizon Power customers once they join a virtual power plant. In New South Wales, the VPP incentive comes to about $486 on top. The ACT gives no rebate but offers a 3% loan instead.
| State | Federal | State extra | Price after rebates |
|---|---|---|---|
| New South Wales | $3,640 | about $486 from the provider, once you join a VPP | $9,800 to $13,800, before the VPP payment |
| Victoria | $3,640 | none | $9,800 to $13,800 |
| Queensland | $3,640 | none | $9,800 to $13,800 |
| Western Australia | $3,640 | $1,300 (Synergy) or $3,800 (Horizon Power) | $8,500 to $12,500 (Synergy), $6,000 to $10,000 (Horizon Power) |
| South Australia | $3,640 | none | $9,800 to $13,800 |
| Tasmania | $3,640 | none | $9,800 to $13,800 |
| Australian Capital Territory | $3,640 | 3% loan | $9,800 to $13,800 |
| Northern Territory | $3,640 | none | $9,800 to $13,800 |
The after-rebate prices come from the usual installed ranges in CHOICE, worked out between its two closest sizes.