Home battery prices by brand, 2026: what each costs installed
Battery prices are quoted so many ways that comparing two brands is harder than it should be. This page puts eight brands on the same footing: the same calculator, the same capacities, installed, before and after the federal discount, on Victorian prices.
How the prices are worked out
This site holds one installed price range for each battery capacity, then scales it by the brand's tier. Value tier is the base price, mid tier is 10% above it and premium tier 15% above. On this site, Fox ESS and Alpha ESS are value tier; GoodWe and BYD Battery-Box mid tier; Sungrow, Sigenergy, Tesla Powerwall and Enphase premium. The same figures drive the free assessment, so a brand's price here is the price the report shows.
Prices by tier
| Tier and brands | Battery | Installed, before rebates | After rebates (VIC) |
|---|---|---|---|
| Value: Fox ESS, Alpha ESS | 10 kWh | $7,650 to $13,500 | $5,130 to $10,980 |
| Value: Fox ESS, Alpha ESS | 15 kWh | $12,100 to $18,000 | $8,420 to $14,320 |
| Value: Fox ESS, Alpha ESS | 27 kWh | $16,470 to $28,000 | $10,980 to $22,510 |
| Mid: GoodWe, BYD Battery-Box | 10 kWh | $8,420 to $14,850 | $5,900 to $12,330 |
| Mid: GoodWe, BYD Battery-Box | 15 kWh | $13,310 to $19,800 | $9,630 to $16,120 |
| Mid: GoodWe, BYD Battery-Box | 27 kWh | $18,120 to $30,800 | $12,630 to $25,310 |
| Premium: Sungrow, Sigenergy, Tesla Powerwall, Enphase | 10 kWh | $8,800 to $15,520 | $6,280 to $13,000 |
| Premium: Sungrow, Sigenergy, Tesla Powerwall, Enphase | 15 kWh | $13,910 to $20,700 | $10,230 to $17,020 |
| Premium: Sungrow, Sigenergy, Tesla Powerwall, Enphase | 27 kWh | $18,940 to $32,200 | $13,450 to $26,710 |
Ranges are installed, for a typical house. Where a house sits in a range depends on the switchboard, cable runs, whether a new inverter is needed and the installer's diary that month.
The federal discount is the same for every brand
The federal battery discount is set by the battery's usable capacity, not its brand: on this calculator, $2,520 off a 10kWh battery and $3,680 off 15kWh. The actual amount is set by a number of certificates per usable kWh, and their value: 6.8 per kWh for installs from July to December 2026, falling to 5.7 from January 2027. It is tapered, at the full rate for the first 14kWh of usable capacity, 60% from 14 to 28kWh and 15% from 28 to 50kWh, and the battery must be on the approved list, installed by an accredited installer and connected to solar[1].
Because the discount is the same dollar amount for every brand of the same size, it does not narrow the gap between tiers. It makes the gap a bigger share of what you finally pay.
No Victorian battery rebate in these figures
Solar Victoria's battery loans are no longer taking applications, and Solar Victoria points households to the federal program instead[2]. So the federal discount is the only battery incentive in the Victorian figures above.
What the price does not tell you
Warranty terms differ more than prices do. GoodWe's Lynx F G2 warranty covers hardware material costs only in years six to ten[3]. BYD's Battery-Box Premium warranty and Sigenergy's SigenStor warranty both promise 70% of usable energy for 10 years or a minimum energy throughput, whichever comes first[4][5]. Fox ESS has described its EQ4800 warranty as about 4,100 full cycles over 10 years[6].
The inverter you already have narrows the list before price does. A battery that needs a new inverter carries that cost too, and a quote that leaves it out is not comparable with one that includes it.
Comparing two quotes
Divide the price after the discount by the usable capacity on the approved list, not the nameplate, and compare that. Check the exact model is on the approved list, whether the price includes a new inverter, and which warranty document applies to that model.
Get your own numbers, then get them priced properly
Two minutes of questions gets you the battery size your house actually needs, what it should cost after rebates, and what it saves. Then I find the bottom of that price range for you. No installer sees anything unless you ask.
Run my numbers, freeCommon questions
Which home battery brand is cheapest in 2026?
On this site's pricing, Fox ESS and Alpha ESS are value tier, the lowest. GoodWe and BYD Battery-Box are 10% above them before rebates on the same capacity, and Sungrow, Sigenergy, Tesla Powerwall and Enphase 15% above.
How much does a 10kWh home battery cost in Victoria?
On this site's calculator, $7,650 to $13,500 installed at value tier before the federal discount, which takes $2,520 off. Mid and premium tier batteries cost 10% and 15% more before the discount.
Does the battery brand change the rebate?
No. The federal discount is set by usable capacity and the install date, not the brand. Victoria has no state battery rebate open.
Sources
- Clean Energy Regulator, Solar batteries (Cheaper Home Batteries Program). Read 2026-10-27.
- Solar Victoria, Solar battery loans (no longer taking applications; page updated 16 April 2026). Read 2026-10-27.
- GoodWe, Limited Warranty for Lynx LX F G2 Series Battery System, AU and NZ. Read 2026-10-27.
- BYD, BYD Battery-Box Premium Limited Warranty, HVS and HVM, Australia (V1.1, 8 October 2024). Read 2026-10-27.
- Sigenergy, via Zelora, Factory Limited Warranty for SigenStor (for Australia and New Zealand), 2025. Read 2026-10-27.
- pv magazine Australia, 20 November 2025, Fox ESS compact batteries heed rebate call backed by new local teams. Read 2026-10-27.