NSW business battery discount: who qualifies and how much

This is a state scheme run through certificates, not a cash grant. Your installer partners with an accredited certificate provider, who claims the certificates and passes the value to you as a lower price. The NSW Government’s batteries for businesses page is the main source for everything below, and we checked it on 31 October 2026.

How much is the NSW business battery discount?

The state gives two indicative ranges. Which one applies depends on whether you add solar.

The page says the amount varies with the installer, your location, the battery model, the building design, the administrative and compliance costs of securing the discount, and the installer’s margin. A NSW Government media release gave examples of around $37,000 for a small business such as a grocery store and around $355,000 for a medium business such as a dairy farm, but did not state the battery sizes, so treat them as a sense of scale only.

The minimum payment for 20–200 kWh batteries

If your battery is between 20 and 200 kWh, you must make a minimum payment towards the battery and its installation. Batteries between 200 kWh and 30 MWh do not. The page does not state the amount, so ask each installer for it in writing.

What is the 90-day and 25% solar rule?

Solar is not required, but it lifts the discount. There are two ways to qualify for the higher rate:

• New solar: the new solar capacity must be installed within 90 days before or after the battery.
• Existing solar: install additional solar within 90 days before or after the battery. The new solar must be at least 25% of the new battery’s capacity.

Worked example

A business with an existing system plans a 100 kWh battery. At 25% of the battery’s capacity, it needs at least 25 kW of new solar installed within 90 days either side of the battery. A 200 kWh battery would need at least 50 kW. Ask your installer exactly how they measure the comparison and which dates they will use, because the 90-day window runs from the installation dates.

You may also claim federal solar certificates on that new solar. The page says you may be eligible for additional discounts from the Australian Government’s Small-scale Renewable Energy Scheme. See commercial solar rebates by state for how they fit together.

Who is eligible, and who is not?

To qualify, you must:

• be installing a battery between 20 kWh and 30 MWh
• not be a residential building or a data centre
• not have already used this discount to install a battery
• work with an installer offering this discount
• obtain the required planning approval.

Some cases that come up often:

• Off-grid sites: not eligible. The page says the discount is intended to reduce peak demand on the grid.
• Batteries installed earlier: batteries commissioned before 1 September 2026 are not eligible.
• Businesses that already own a battery: may still be eligible if they have not claimed this discount before.
• Apartment buildings: the NSW media release says buildings with four or more units can use the discount for a 20–200 kWh battery serving shared spaces. The business page lists residential buildings as ineligible and does not discuss apartments, so owners corporations should confirm with the scheme before committing. See solar for strata and apartments.

What product and installer rules apply?

The rules change at 200 kWh.

Check an installer’s status before you talk numbers. Our accreditation check explains how.

Who handles the certificates, and what do you sign?

The installer must partner with an accredited certificate provider (ACP), approved by IPART, the scheme administrator. The IPART’s Energy Sustainability Schemes site are where installers and customers can check providers. Here is the order of events:

• Get multiple quotes, and ask each installer whether they are offering the discount and that it is included in the quote.
• Choose a battery.
• Complete the paperwork from your installer, including the nomination form.
• Organise the installation.
• After installation, sign a Post Implementation Declaration; the installer takes photos as proof.

For problems, the page points to the installer first, then the ACP named on your nomination form. NSW Fair Trading handles unresolved work, and Building Commission NSW handles licensing.

Can you combine it with other discounts?

Yes, where you meet the rules of both. The NSW page says you can combine the discount with the Australian Government’s solar discounts and with the Australian Government’s battery discount. The federal Cheaper Home Batteries program covers batteries of 5–100 kWh and pays certificates only on the first 50 kWh of usable capacity, so batteries at the large end of the NSW range will get little or nothing from it. Our guide to the household battery discount explains the federal factor.

The separate virtual power plant incentive

The NSW media release says a virtual power plant (VPP) incentive of up to $1,000 now extends to batteries up to 50 kWh. A VPP lets a provider draw on your battery at peak times. We could not find the eligibility details on an official NSW page, so ask your installer and check with the Government before counting on it. See virtual power plants explained.

Is a business battery worth it with the discount?

The discount reduces the price, but it does not make a battery worthwhile by itself. A battery earns its keep by cutting the charges you pay at peak times or by shifting solar into the evening. Check your bill for demand charges first: demand charges explained shows how to read them, and business batteries covers the sums. To compare a discounted quote with your bill, try the battery discount calculator.

Questions to ask installers

• Is the NSW discount included in this quote, and which ACP are you partnering with?
• What is the minimum payment for my battery size, and what is it based on?
• Is the quote priced with solar or without? What happens to the price if the solar is outside the 90-day window?
• How do you measure the 25% rule for my existing solar?
• Which approved battery list or fire safety standard does this model meet for its size?
• When will the nomination form be ready, and will you wait until it is signed before starting?
• Who arranges planning approval, and who pays if it is refused?
• What federal certificates are you applying on top, and how are they shown on the quote?

This guide is general information, not financial or legal advice. Rules, rebates and prices change, so check the linked sources before you decide. Facts checked 31 October 2026.