A 10 kWh solar battery costs about A$7,384 installed after the federal Cheaper Home Batteries discount in Australia, as at November 2026 (Solar Choice average, battery only), or A$7,984 with a battery inverter. Before the discount that is roughly A$9,900 to A$10,500. Searchers who type “10kw solar battery price” almost always mean a battery that stores about 10 kWh.
Key facts
- The Solar Choice Battery Price Index, updated 6 November 2026, lists the average installed cost of a 10 kWh battery at A$7,384 after the federal rebate (battery only) and A$7,984 (battery plus inverter), including GST and installation.
- Solar Choice shows a pre-rebate price of A$990 per kWh for a battery-only 10 kWh install, about A$9,900 before the discount.
- A 10 kWh battery installed between 1 May and 31 December 2026 earns 68 small-scale technology certificates (STCs), worth about A$2,720 at A$40 each (Solar Cobber calculation from the federal regulations).
- From 1 January 2027 the same battery earns 57 STCs, about A$2,280, so waiting costs about A$440.
- SolarQuotes listed 9 to 11 kWh batteries from A$3,500 to A$10,500 after the discount and before installation on 12 May 2026, which is A$368 to A$1,050 per usable kWh.
- At 7 kWh of battery use a day, a A$7,384 battery pays back in 7.4 years in Adelaide and 12.6 years in Melbourne (Solar Cobber calculation).
Is a 10kW battery the same as a 10kWh battery?
No. A kilowatt hour (kWh) measures how much energy a battery stores, while a kilowatt (kW) measures how fast it can charge or discharge. A “10kW battery price” search nearly always means a battery with about 10 kWh of usable storage, and our kW vs kWh guide covers the difference.
10kWh battery price list (November 2026)
Published prices for batteries of 9 to 11 kWh run from about A$3,500 to A$10,500 after the federal discount and before installation. The table shows SolarQuotes’ listed prices (page updated 12 May 2026, “includes the federal rebate and GST, excludes installation”), with our estimates of the discount and the installed price.
| Battery | Usable kWh | Price after discount, before installation (SolarQuotes) | Federal discount, Nov 2026 (Solar Cobber calculation) | Estimated installed, after discount | Estimated installed, before discount |
|---|---|---|---|---|---|
| Sofar PowerAll | 9.5 | A$3,500 | A$2,560 | A$6,500 | A$9,060 |
| AlphaESS Smile-M5 | 10 | A$3,700 | A$2,720 | A$6,700 | A$9,420 |
| ESY Sunhome HM6-10 | 9.73 | A$4,600 | A$2,640 | A$7,600 | A$10,240 |
| AlphaESS Smile-G3-S5 | 9.6 | A$4,600 | A$2,600 | A$7,600 | A$10,200 |
| Neovolt | 9.6 | A$5,100 | A$2,600 | A$8,100 | A$10,700 |
| Anker SOLIX X1 | 10 | A$5,300 | A$2,720 | A$8,300 | A$11,020 |
| Pylontech Force H3X | 9.73 | A$5,600 | A$2,640 | A$8,600 | A$11,240 |
| BYD Battery-Box Premium HVM 11.0 | 11.04 | A$7,100 | A$3,000 | A$10,100 | A$13,100 |
| Growatt APX HV 10.0 | 9 | A$6,500 | A$2,440 | A$9,500 | A$11,940 |
| SolaX X1 10.2 | 9.2 | A$6,800 | A$2,480 | A$9,800 | A$12,280 |
| LAVO Storage S2 | 9.7 | A$8,600 | A$2,600 | A$11,600 | A$14,200 |
| iStore Smart Battery | 10 | A$10,500 | A$2,720 | A$13,500 | A$16,220 |
Method: the discount is STCs (usable kWh x 6.8, rounded down) x A$40. The installed estimate adds A$3,000, which SolarQuotes says it “usually” assumes for a straightforward installation, and the before-discount figure adds the discount back. Inverter inclusion differs by model (SolarQuotes says AlphaESS and GoodWe batteries have the inverter built in, while BYD and iStore need a separate one), so compare like with like.
Source: SolarQuotes, Solar Battery Prices and System Costs, updated 12 May 2026.
View the data as a table
| Price after discount, before installation | |
|---|---|
| iStore Smart Battery 10 kWh | A$10,500 |
| LAVO S2 9.7 kWh | A$8,600 |
| BYD HVM 11.0 (11 kWh) | A$7,100 |
| SolaX X1 10.2 (9.2 kWh) | A$6,800 |
| Growatt APX HV 10 (9 kWh) | A$6,500 |
| Pylontech H3X (9.7 kWh) | A$5,600 |
| Anker SOLIX X1 10 kWh | A$5,300 |
| Neovolt 9.6 kWh | A$5,100 |
| AlphaESS G3-S5 9.6 kWh | A$4,600 |
| ESY Sunhome HM6-10 (9.7 kWh) | A$4,600 |
| AlphaESS M5 10 kWh | A$3,700 |
| Sofar PowerAll 9.5 kWh | A$3,500 |
The cheapest listed battery costs about a third of the dearest, though inverter inclusion differs.
Price per usable kWh
Dividing each price by its usable capacity gives A$368 per kWh for the Sofar PowerAll up to A$1,050 for the iStore, with most models between A$470 and A$740.
Source: SolarQuotes (12 May 2026) prices and usable capacities; Solar Cobber calculation.
View the data as a table
| A$ per usable kWh | |
|---|---|
| iStore Smart Battery | A$1,050 |
| LAVO S2 | A$887 |
| SolaX X1 10.2 | A$739 |
| Bluetti EP760 | A$730 |
| Growatt APX HV 10 | A$722 |
| BYD HVM 11.0 | A$643 |
| Pylontech H3X | A$576 |
| Neovolt | A$531 |
| Anker SOLIX X1 | A$530 |
| AlphaESS G3-S5 | A$479 |
| ESY Sunhome HM6-10 | A$473 |
| AlphaESS M5 | A$370 |
| Sofar PowerAll | A$368 |
Market averages from Solar Choice
| Usable capacity | Battery only, installed after rebate | Battery plus inverter, installed after rebate | Pre-rebate per kWh (battery only) | After-rebate per kWh (battery only) |
|---|---|---|---|---|
| 10 kWh | A$7,384 | A$7,984 | A$990 | A$738 |
| 20 kWh | A$14,172 | A$15,172 | A$930 | A$709 |
Source: Solar Choice Battery Price Index, last updated 6 November 2026. “Battery only” assumes you already have a hybrid or battery-ready system. For bigger batteries see our 20 kWh battery price guide and 30 to 50 kWh price guide.
What changes the price of a 10kWh battery
Three items move a 10 kWh quote by A$1,000 or more: the inverter, the phase and the installation location. SolarQuotes (12 May 2026) gives these examples.
- Inverter. A Sungrow 5 kW hybrid inverter is listed at A$2,300 and a 10 kW unit at A$3,600. Batteries with a built-in inverter avoid this line.
- Three phase. A three-phase Sungrow 10 kW inverter is A$900 dearer than single phase, plus at least A$500 more for installation. SolarQuotes notes most three-phase homes do not need a three-phase battery system.
- Location. A long cable run from the switchboard can add A$1,000 or more, and a garage-floor battery may need a bollard.
- Buying with new solar. A shared hybrid inverter can save about A$1,000 against retrofitting, which our solar and battery package prices guide covers. Our battery installation cost guide covers labour in detail.
How the federal discount applies to a 10 kWh battery
The Cheaper Home Batteries Program pays about A$2,720 off a 10 kWh battery installed from 1 May to 31 December 2026, and about A$2,280 off one installed from 1 January 2027. The installer takes the discount off your invoice as STCs.
The working, from Renewable Energy Legislation (2026 Measures No. 1) Amendment Regulations 2026 (F2026L00093): the first 14 kWh earns the full STC factor, the next 14 kWh earns 60%, and the next 22 kWh earns 15%. The factor per usable kWh is 6.8 for 1 May to 31 December 2026 and 5.7 for 1 January to 30 June 2027. A 10 kWh battery sits wholly in the first band, so 10 x 6.8 = 68 STCs, and 68 x A$40 = A$2,720.
The Clean Energy Regulator sets the clearing house price at A$40, and Demand Manager reported spot trades at A$39.85 to A$39.90 through October 2026. At A$38 the same 68 STCs are worth A$2,584.
Electrifying Everything, an Australian independent channel run by Neerav Bhatt, explains the May 2026 rebate changes in this video.
| Usable kWh | STCs, installed Nov 2026 | Discount at A$40 | STCs, installed Jan 2027 | Discount at A$40 | Lost by waiting |
|---|---|---|---|---|---|
| 5 | 34 | A$1,360 | 28 | A$1,120 | A$240 |
| 9 | 61 | A$2,440 | 51 | A$2,040 | A$400 |
| 10 | 68 | A$2,720 | 57 | A$2,280 | A$440 |
| 11 | 74 | A$2,960 | 62 | A$2,480 | A$480 |
| 13.5 | 91 | A$3,640 | 76 | A$3,040 | A$600 |
Solar Cobber calculation, rounding STCs down as the regulations’ worked examples do. Each battery needs a minimum 5 kWh and must be connected to a solar system. See our battery rebates by state guide for the full schedule and any state top-ups, such as the Western Australian scheme on our WA rebate page.
- Installed 1 May to 31 Dec 2026
- Installed 1 Jan to 30 Jun 2027
View the data as a table
| Installed 1 May to 31 Dec 2026 | Installed 1 Jan to 30 Jun 2027 | |
|---|---|---|
| 5 kWh | A$1,360 | A$1,120 |
| 9 kWh | A$2,440 | A$2,040 |
| 10 kWh | A$2,720 | A$2,280 |
| 11 kWh | A$2,960 | A$2,480 |
| 13.5 kWh | A$3,640 | A$3,040 |
Every size loses 16% of its discount on 1 January 2027.
10kWh battery vs bigger batteries on price
A 10 kWh battery is the cheapest to buy but not the cheapest per kWh. Solar Choice’s after-rebate cost per kWh is A$738 at 10 kWh and A$709 at 20 kWh, because the inverter and labour are spread over more storage.
| Battery | Usable kWh | Price after discount, before installation | Source |
|---|---|---|---|
| AlphaESS Smile-M5 | 10 | A$3,700 | SolarQuotes, 12 May 2026 |
| Sungrow SBR 128 | 12.8 | A$8,100 | SolarQuotes, 12 May 2026 |
| Tesla Powerwall 3 with Gateway | 13.5 | A$10,000 | SolarQuotes, 12 May 2026 |
| Sigenergy SigenStor | 18 | A$4,900 | SolarQuotes, 12 May 2026 |
The Sungrow needs a separate inverter and the Powerwall 3 has one built in. See the Sungrow, Sigenergy, Fox ESS, AlphaESS, GoodWe and Tesla Powerwall 3 price guides, and what size battery you need.
Is a 10kWh battery worth it? Payback by capital city
A 10 kWh battery pays back in 7 to 14 years depending on the city and quote, so it beats a 10-year warranty only in the dearer-power states. This is our own calculation, not a measured result.
Assumptions: the battery supplies 7 kWh a day to the home (365 days), each kWh avoids the usage rate on a flat standard tariff, and the lost export income is a 3 c/kWh feed-in tariff, so the net saving is the rate minus 3 c. Battery losses, degradation, supply charges, time-of-use plans and VPP income are ignored. Prices are the Solar Choice installed averages above, A$7,384 and A$7,984. Rates are the regulated 2026-27 flat usage rates including GST (sources below); Melbourne uses the CitiPower flat rate.
| City (tariff) | Usage rate (c/kWh) | Saving a year | Payback at A$7,384 | Payback at A$7,984 |
|---|---|---|---|---|
| Adelaide (SA Power Networks default offer) | 41.91 | A$994 | 7.4 years | 8.0 years |
| Canberra (ActewAGL standing offer) | 36.95 | A$868 | 8.5 years | 9.2 years |
| Perth (Synergy Home Plan A1) | 33.26 | A$773 | 9.5 years | 10.3 years |
| Sydney (Ausgrid default offer) | 33.14 | A$770 | 9.6 years | 10.4 years |
| Darwin (Jacana standard residential) | 31.68 | A$733 | 10.1 years | 10.9 years |
| Brisbane (Energex default offer) | 27.97 | A$638 | 11.6 years | 12.5 years |
| Melbourne (CitiPower Victorian default offer) | 25.96 | A$587 | 12.6 years | 13.6 years |
- At A$7,384 (battery only)
- At A$7,984 (battery plus inverter)
View the data as a table
| At A$7,384 (battery only) | At A$7,984 (battery plus inverter) | |
|---|---|---|
| Melbourne | 12.6 years | 13.6 years |
| Brisbane | 11.6 years | 12.5 years |
| Darwin | 10.1 years | 10.9 years |
| Sydney | 9.6 years | 10.4 years |
| Perth | 9.5 years | 10.3 years |
| Canberra | 8.5 years | 9.2 years |
| Adelaide | 7.4 years | 8.0 years |
Adelaide pays back fastest because South Australia has the highest usage rate in the table, and Melbourne slowest because its default rate is the lowest. Hobart is left out because its standard tariff is closed to new connections.
The case where it does not pay: a Sydney home that uses only 3.5 kWh a day from the battery saves about A$385 a year, a payback of more than 19 years at A$7,384. Joining a virtual power plant or moving to a plan with cheap daytime power can shorten the payback, and the Solar Sharer Offer adds free daytime power periods on default offers. Our are solar batteries worth it guide covers more cases, and how long batteries last covers the warranty window.
What to check on your quote
- The usable capacity in kWh, not nominal capacity, and the exact model.
- The STC count and its dollar value shown as a line item, and the STC price used.
- Whether a battery inverter, backup gateway and installation are included, and the phase.
- The warranty years and throughput limit, and who honours it if the installer closes.
- That the installer and battery are approved, which you should check on the Clean Energy Council and Solar Accreditation Australia lists yourself.
- The installation date, because the discount drops on 1 January 2027.
Compare local installers in our directory, and see our full battery cost guide for other sizes.
FAQ
How much does a 10kWh battery cost in Australia?
A 10 kWh battery costs about A$7,384 installed after the federal rebate, on the Solar Choice average of 6 November 2026, or about A$9,900 before it. Prices for individual models run higher or lower with brand, inverter and installation.
How much does a 10kW solar battery cost?
If you mean a battery that stores 10 kWh, the answer is about A$7,400 to A$8,000 installed after the federal discount. A battery’s kW rating describes power output and does not set the rebate.
How much is the federal rebate on a 10kWh battery?
The federal discount on a 10 kWh battery is about A$2,720 if installed from 1 May to 31 December 2026, based on 68 STCs at A$40. From 1 January 2027 it falls to about A$2,280.
What is the cheapest 10kWh battery?
On SolarQuotes’ 12 May 2026 list, the Sofar PowerAll (9.5 kWh) at A$3,500 and the AlphaESS Smile-M5 (10 kWh) at A$3,700 were cheapest after the discount and before installation. Check inverter and installation costs before comparing.
Is a 10kWh battery enough for a house?
A 10 kWh battery suits many households with moderate evening use, but a home with an electric vehicle or electric heating may want 13.5 kWh or more. See our guide to what size solar battery you need.
How long does a 10kWh battery pay for itself?
In our calculation a 10 kWh battery pays back in 7.4 years in Adelaide and 12.6 years in Melbourne, using 7 kWh a day and the Solar Choice average price. Lower use roughly doubles the payback.
Will the battery rebate drop in 2027?
Yes. The STC factor falls from 6.8 to 5.7 on 1 January 2027, then to 5.2 on 1 July 2027, which cuts the 10 kWh discount to about A$2,280 and later to about A$2,080. The 5.2 factor is read from the regulations table and cross-checked against SolarQuotes.
Sources
- Solar Choice Battery Price Index, updated 6 November 2026
- SolarQuotes, Solar Battery Prices and System Costs, updated 12 May 2026
- Explanatory Statement, Renewable Energy Legislation (2026 Measures No. 1) Amendment Regulations 2026 (F2026L00093)
- Clean Energy Regulator, Buy and sell small-scale technology certificates, updated 14 September 2026
- Demand Manager, Certificate Report October 2026
- Australian Energy Regulator, Default Market Offer 2026-27 final determination
- Essential Services Commission, Victorian Default Offer 2026-27
- ActewAGL ACT standard electricity prices, July 2026
- WA Government household electricity pricing
- Jacana Energy residential pricing
About this guide
Written by the Solar Cobber editorial team from independent desk research, checked in November 2026. Solar Cobber is a free directory that may earn referral or advertising fees from installers, and commercial relationships never affect our content. This is general information, not financial advice. To report a correction, contact us.
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