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Rebate Clock

sonnen sonnenBatterie Evo rebate

Checked against the approved list

sonnenBatterie Evo

Waiting past 31 Dec 2026 costs $440

The Evo collects the full rate on all of its capacity, and its rebate matches any other battery with 10 kWh usable. Compare it with those on price after the discount.

Try your own numbers

Your battery and install date
Installed by 31 Dec 2026$2,720
Installed from 1 Jan 2027$2,280
Waiting costs you−$440

68 certificates × $40 for 10 kWh usable, at the May–Dec 2026 factor of 6.8. 57 certificates from 1 Jan 2027.

The factor is set by the date on the electrical compliance certificate, not the date you sign the quote.

19 batteries, every install date

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State and price
For state top-ups; the federal rebate is the same everywhere.
Price per certificate

The clock: this battery’s rebate by install date

  1. May–Dec ’26$2,720
  2. Jan–Jun ’27$2,280
  3. Jul–Dec ’27$2,080
  4. Jan–Jun ’28$1,840
  5. Jul–Dec ’28$1,640
  6. Jan–Jun ’29$1,440
  7. Jul–Dec ’29$1,240
  8. Jan–Jun ’30$1,040
  9. Jul–Dec ’30$840

How the size taper applies

  • First 14 kWh at 100%10 kWh
  • 14 to 28 kWh at 60%0 kWh
  • 28 to 50 kWh at 15%0 kWh

Get quotes from more than one accredited installer, and ask each to show the STC discount as its own line.

Updated 3 Oct 2026 · every figure links to its source · No provider pays us to be listed.

The sonnenBatterie Evo is listed as a single unit of 11 kWh nominal and 10 kWh usable.

sonnenBatterie Evo rebate by install date

Size (usable)May–Dec ’26Jan–Jun ’27Jul–Dec ’27Jan–Jun ’28Jul–Dec ’28Jan–Jun ’29Jul–Dec ’29Jan–Jun ’30Jul–Dec ’30
sonnenBatterie Evo10 kWh$2,720$2,280$2,080$1,840$1,640$1,440$1,240$1,040$840
At $40 a certificate, excluding GST.

sonnenBatterie Evo listings

SizeModel numberNominalUsableListed until
sonnenBatterie Evo sonnenBatterie Evo (AS4777-2 2020) 11 kWh 10 kWh 16 Jul 2027

How the sonnenBatterie Evo sizes land on the taper

With one listed size, the Evo's rebate is simple: 10 kWh usable, all at the full factor. The 11 kWh label figure only matters for eligibility, where it clears the 5 kWh minimum easily.

The Evo's listing (BAT-701) runs to 16 July 2027. It is the only sonnen battery on the approved list at our check, so if you are quoted a different sonnen system, ask for its listed model number before you sign.

Other sonnen batteries on the list

The list classes the Evo as an integrated battery energy storage system, meaning battery and inverter come as one unit. There is no module count to check on a quote: the only figures are its 11 kWh nominal and 10 kWh usable.

Before you sign for a sonnenBatterie Evo

  • Check the model on the quote is the sonnenBatterie Evo. No other sonnen battery is on the approved list as at our check.
  • Its rebate depends only on the 10 kWh usable figure, so it should match any other 10 kWh-usable battery's certificates exactly.

Rebate calculator · Eligibility rules