The short answer
The federal Cheaper Home Batteries Program (launched 1 July 2025) discounts approximately $311 per usable kWh of battery in May 2026. The rebate reduces every 6 months until 2030. Adelaide homes with existing solar see battery payback in 7-9 years currently, dropping to 6-7 years with the rebate factored in.
Typically included
- Battery unit (Tesla Powerwall 3 / Sungrow SBR / BYD HVS / Alpha ESS / Sigenergy)
- Hybrid inverter or AC-coupling hardware
- Battery enclosure (outdoor IP-rated if required)
- AS/NZS 5139 compliant installation
- Federal Cheaper Home Batteries rebate claim (applied upfront)
- Monitoring app
- 10-year manufacturer warranty (most brands)
Not included
- Solar panels and panel inverter (separate guide)
- Switchboard upgrade if required
- Backup gateway / sub-circuit wiring (some batteries don't include backup)
Federal Cheaper Home Batteries rebate in 2026
Launched 1 July 2025, the Federal Cheaper Home Batteries Program (CHB) is approximately 30% off the cost of an eligible home battery. In May 2026 the rebate is worth around $311 per usable kWh.
Indicative rebates by battery size:
- 5 kWh: ~$1,555
- 10 kWh: ~$3,110
- 13.5 kWh (Tesla Powerwall 3): ~$4,200
- 14 kWh: ~$4,350
- 20 kWh: ~$6,220
The rebate is applied upfront by your accredited installer (the same mechanism as STCs). You do not apply to the government. The rebate steps down every 6 months from 1 May 2026 - so the financial case is best now.
Popular battery brands in Adelaide, 2026
- Tesla Powerwall 3: 13.5kWh usable, integrated inverter, backup gateway available. ~$13,500-$15,500 installed after rebate.
- Sungrow SBR Series: modular 9.6-25.6kWh, premium hybrid inverter pairing. ~$9,500-$22,000 installed after rebate depending on size.
- BYD HVS / HVM: high-voltage stack, modular. ~$10,500-$17,000 installed.
- Alpha ESS Smile: 5.7-13.4kWh, all-in-one. ~$8,500-$14,000 installed.
- Sigenergy SigenStor: modular 8-24kWh, integrated. ~$10,500-$22,000 installed.
All are CEC-approved LFP chemistry (preferred for fire safety and cycle life).
Will I lose my 44c SA distributor feed-in tariff?
Yes - per sa.gov.au, adding battery storage cancels the legacy 44c distributor feed-in tariff. This applies to systems originally connected before 30 September 2011. If you are still on the 44c tariff, the maths needs to weigh up:
- Annual revenue from the existing 44c distributor tariff (often $400-$800)
- vs. annual self-consumption savings from a battery (often $700-$1,500)
For most homes the battery wins, but it is close. Your matched installer should run the numbers both ways.
Battery payback period in Adelaide
Adelaide battery payback (after federal rebate, May 2026 rebate value):
- 5kWh battery: 8-10 years
- 10kWh battery: 7-9 years
- 14kWh battery: 7-9 years
- 20kWh battery (heavy consumers, EVs): 6-8 years
Payback improves with:
- Higher daytime export (currently being wasted at low feed-in)
- Higher evening / overnight grid consumption
- Time-of-use tariffs with high peak rates
- EV ownership (charge overnight from battery)