Energy Figures

What rebate does a SolaX Power TSYS-HS51 get?

Up to $6,960

Federal rebate, 51.2 kWh

Falls to $5,840 on 1 January 2027

Got a quote for this battery? Check it

Fig. 1 · Approved configurations · Source CER · 28 September 2026
Approved configurations
12
Largest usable capacity
66.5 kWh
Lowest advertised price
$4,895

Federal rebate curve

Rebate by battery size

14 kWh28 kWh$6,960$5,840
TodayFrom 1 January 2027SolaX Power TSYS-HS51 configurations
Federal rebate by usable capacity, with each SolaX Power TSYS-HS51 configuration
Usable capacityTodayFrom 1 January 2027
5 kWhUp to $1,360Up to $1,120
10 kWhUp to $2,720Up to $2,280
14 kWhUp to $3,800Up to $3,160
20 kWhUp to $4,760Up to $4,000
25 kWhUp to $5,600Up to $4,680
28 kWhUp to $6,080Up to $5,080
35 kWhUp to $6,360Up to $5,320
40 kWhUp to $6,560Up to $5,480
50 kWhUp to $6,960Up to $5,840

Source CER · Approved list

Rebate on each approved configuration

Rebate on each approved SolaX Power TSYS-HS51 configuration
CertificatesFrom 1 January 2027NSW, on a VPPWA, SynergyWA, Horizon Power
T-HS10.210.2 kWhUp to $2,76069Up to $2,320201 certificates$1,300$3,800
T-HS15.315.3 kWhUp to $4,000100Up to $3,360302 certificates$1,300$3,800
T-HS20.420.4 kWhUp to $4,840121Up to $4,040403 certificates$1,300$3,800
T-HS25.625.6 kWhUp to $5,680142Up to $4,760506 certificates$1,300$3,800
T-HS30.730.7 kWhUp to $6,200155Up to $5,160607 certificates$1,300$3,800
T-HS35.835.8 kWhUp to $6,400160Up to $5,360615 certificates$1,300$3,800
T-HS40.940.9 kWhUp to $6,600165Up to $5,520615 certificates$1,300$3,800
T-HS46.046 kWhUp to $6,800170Up to $5,720615 certificates$1,300$3,800
T-HS51.251.2 kWhUp to $6,960174Up to $5,840615 certificates$1,300$3,800
T-HS56.356.3 kWhUp to $6,960174Up to $5,840$1,300$3,800
T-HS61.461.4 kWhUp to $6,960174Up to $5,840$1,300$3,800
T-HS66.566.5 kWhUp to $6,960174Up to $5,840$1,300$3,800

12 configurations

Source seller websites

Advertised prices

Advertised prices by kind and size
KindUsableOffersLowestHighest
Supply only10.2 kWh1$4,895
Supply only15.3 kWh1$6,695
Supply only20.4 kWh1$8,495
Supply only25.6 kWh1$10,295
Supply only30.7 kWh1$12,095
Supply only35.8 kWh1$13,895
Supply only40.9 kWh1$15,695
Supply only46 kWh1$17,495
Supply only51.2 kWh1$19,295
Supply only56.3 kWh1$21,095
Supply only61.4 kWh1$22,895
Supply only66.5 kWh1$24,595
Advertised offers
KindUsableAdvertisedSellerNotesSeen
Supply only10.2 kWh$4,895Solar Battery Supermarket28 September 2026
Supply only15.3 kWh$6,695Solar Battery Supermarket28 September 2026
Supply only20.4 kWh$8,495Solar Battery Supermarket28 September 2026
Supply only25.6 kWh$10,295Solar Battery Supermarket28 September 2026
Supply only30.7 kWh$12,095Solar Battery Supermarket28 September 2026
Supply only35.8 kWh$13,895Solar Battery Supermarket28 September 2026
Supply only40.9 kWh$15,695Solar Battery Supermarket28 September 2026
Supply only46 kWh$17,495Solar Battery Supermarket28 September 2026
Supply only51.2 kWh$19,295Solar Battery Supermarket28 September 2026
Supply only56.3 kWh$21,095Solar Battery Supermarket28 September 2026
Supply only61.4 kWh$22,895Solar Battery Supermarket28 September 2026
Supply only66.5 kWh$24,595Solar Battery Supermarket28 September 2026

Email alerts

Rebate reminder

Price drop

Questions

How is the federal rebate worked out?

The Cheaper Home Batteries Program pays small-scale technology certificates (STCs). A battery gets 6.8 certificates per kWh of usable capacity for the first 14 kWh, 60% of that from 14 to 28 kWh, and 15% from 28 to 50 kWh. The factor drops to 5.7 on 1 January 2027, so the same battery gets less after that date. The date on the battery's electrical safety certificate decides which factor applies, not the date you sign a contract. Your installer claims the certificates and takes their value off the price. The government clearing house pays $40 per certificate before GST, which is why each figure says "up to": certificates also trade on a market, usually for less. Rules checked 28 September 2026.

How is the rebate chart drawn?

The lines give the federal rebate at every half kWh of usable capacity, taking nominal capacity as equal to usable. The dots and the table use each configuration's own capacities from the approved list, so a dot can sit slightly off the line.

Which states add their own rebate?

Western Australia pays Synergy customers $130 per kWh of usable capacity up to $1,300, and Horizon Power customers $380 per kWh up to $3,800, if the battery joins an eligible virtual power plant. New South Wales pays certificates for joining a virtual power plant, which your VPP provider buys at its own price, so no dollar figure is shown. South Australia has a virtual power plant offer for concession holders whose amounts we could not confirm from an official source, so it is not shown. Victoria, Queensland, Tasmania, the ACT and the Northern Territory have no household battery rebate open.

When does the rebate reminder arrive?

About a month before each drop in the federal rebate, starting with 1 January 2027: one email with what the rebate is worth before and after. You stay signed up for the next drop, and every email has a one-click unsubscribe.

What does 'advertised price' mean?

The price a seller publishes on its own website, read on the date shown. It is not a quote and not what anyone paid. Installed prices depend on the home, and a seller's quote can be higher or lower.

Which configurations are listed?

Every SolaX Power TSYS-HS51 configuration on the Clean Energy Regulator's approved battery list whose approval hasn't expired. A battery must be on the list to get the rebate. Usable capacity is the figure on the list, not the model name.

Numbers as of 28 September 2026.