Commercial solar battery rebates
Businesses get the federal battery discount too. A 50 kWh usable battery installed 1 May to 31 Dec 2026 earns about $6,438 off, the most any single battery can claim. NSW businesses can also get a state discount of 20 to 40% off a business battery.
The federal discount by battery size
| Usable capacity | Certificates | Discount now | From 1 Jan |
|---|---|---|---|
| 20 kWh | 119 | $4,403 | $3,700 |
| 30 kWh | 154 | $5,698 | $4,773 |
| 50 kWh (and above) | 174 | $6,438 | $5,402 |
At $37 a certificate, using the Clean Energy Regulator formula. Batteries up to 100 kWh nominal qualify, but certificates stop at 50 kWh usable, so a 60 or 90 kWh battery gets the same federal discount as a 50 kWh one. The same in every state. Work out any size.
NSW: the business battery discount
- About 30 to 40% off a battery installed with new or extra solar within 90 days.
- About 20 to 30% off a battery on its own.
- Batteries from 20 kWh to 30 MWh. Not for residential buildings or data centres; once per business.
Source: NSW Climate and Energy Action, Batteries for businesses incentive. The discount shows as a line item on the quote.
When a battery pays for a business
A business battery earns its keep three ways: storing midday solar you would otherwise export for a few cents, running the site into the evening at full usage rates, and trimming the peaks that set demand charges on larger tariffs. It suits sites that trade into the evening (hospitality, retail, cold storage) or pay demand charges. A business that closes at 5pm and already uses its solar during the day gets less from one.
Get a commercial battery quote
Green, our solar partner, sizes and installs commercial batteries and solar across Australia and applies the federal and state discounts on the quote. Free, no obligation, and we earn a commission only if you go ahead.
Get a battery quoteCommercial battery questions
- Can a business get the federal battery rebate?
- Yes. The Cheaper Home Batteries Program covers businesses as well as households. Each battery must be 5 to 100 kWh nominal capacity, and certificates are only created on the first 50 kWh of usable capacity. One battery per meter (NMI) or commercial sub-meter.
- How much is the commercial battery rebate?
- For batteries installed 1 May to 31 Dec 2026, a 50 kWh usable battery earns 174 certificates, about $6,438 off at $37 each. The first 14 kWh counts in full, 14 to 28 kWh at 60%, and 28 to 50 kWh at 15%, so the discount per kWh falls as the battery gets bigger.
- Is there a NSW business battery rebate?
- Yes. Since 1 September 2026 NSW businesses can get an upfront discount on batteries from 20 kWh to 30 MWh under the Peak Demand Reduction Scheme: about 30 to 40% off with new or extra solar installed within 90 days, or about 20 to 30% for a battery on its own. Residential buildings and data centres are excluded. Ask the installer how it combines with the federal discount for your battery.
- What about batteries over 100 kWh?
- The federal program stops at 100 kWh nominal capacity per battery. Larger sites in NSW can still use the state business battery discount, which runs up to 30 MWh. Elsewhere, bigger batteries are priced on their own merits, mainly by how much they cut demand charges.
Reviewed by James Baker, Founder, EnergyPlans.com.au. Data last verified 12 November 2026. Methodology.