Solar Battery Rebate NSW 2026: How Much You’ll Get and How to Claim It

For batteries installed between May and December 2026, the federal rebate is worth about $252 per kWh for the first 14 kWh of usable capacity. Capacity above 14 kWh earns less. That works out to roughly $3,810 off a GoodWe ESA 16.6 kWh battery.

The rate falls again on 1 January 2027. A battery of the same size installed in January will get around $400 to $810 less, depending on its capacity.

The federal rebate is paid in Small-scale Technology Certificates (STCs). The number of STCs depends on your battery’s usable capacity and the STC factor in force on the date your battery is installed. Each STC is then worth whatever it trades for on the certificate market.

Rebate estimates for batteries installed May to December 2026 compared with January to June 2027:

Estimates use an STC price of $37 and the Clean Energy Regulator’s published STC factors (6.8 for May to December 2026, 5.7 for January to June 2027), with the tiered rate applied above 14 kWh. Certificate prices have recently traded between about $36 and $40, so your quote will show the exact figure.

These are discounts off the battery price, not the installed price. For what batteries cost before and after the rebate, see our solar battery cost guide.

Since 1 May 2026, every kWh of battery no longer earns the same rebate. The rebate is split into three tiers:

In practice, batteries up to about 14 kWh get the most rebate per kWh. That doesn’t mean a bigger battery is the wrong choice. A household with high evening use, an electric vehicle, or plans to go all-electric may still come out ahead with 20 kWh or more. It does mean the extra capacity has to earn its keep through your bills, because the rebate covers less of it.

Choosing the right size matters more now than it used to. Only one battery system per address can claim the rebate. If you install a small battery now and add another later, the second one won’t get a rebate. Our guide to what size solar battery you need walks through how to size a battery to your actual usage.

Dollar values assume an STC price of $37.

Clean Energy Regulator data shows 7,685 batteries installed across Central Coast postcodes between July 2025 and August 2026. Postcode 2259, which covers Wyong, Tuggerah and the surrounding suburbs, accounts for 1,654 of them, more than any postcode in the Hunter.

Before the rebate cut on 1 May 2026, installations jumped from 787 in March to 1,087 in April, the busiest month since the program began. They then fell to around 400 in May once the lower rate applied.

If you’re aiming for the 2026 rate, expect the same rush in November and December. Booking early gives you the best chance of being installed before 1 January.

NSW no longer offers its general battery installation discount. It was withdrawn when the federal program started in July 2025, and the two can’t be combined. NSW support now comes in three forms:

• The VPP incentive, covered in this section.
• Home Energy Saver for eligible households. This includes a discount of up to $4,000, with applications opening soon, for households earning up to $80,000 or holding an eligible concession card. It also includes zero-interest loans of up to $15,000.
• Separate incentives for apartment buildings and businesses.

The VPP incentive rewards you for connecting your battery to a Virtual Power Plant (VPP), through the Peak Demand Reduction Scheme. It can be combined with the federal discount.

The amount depends on two things: how much of your battery’s capacity you make available to the grid, counted up to 28 kWh, and the VPP provider you choose.

Since 1 July 2026, batteries from 2 to 50 kWh are eligible. The incentive can be claimed once per electricity meter and may be paid upfront, in instalments or as bill credits. Compare offers from more than one provider, as some require you to switch retailer.

A VPP is a group of home batteries managed together by an energy retailer or aggregator. At times of peak demand, such as hot summer evenings, the VPP operator can draw on a share of your stored energy to support the grid. In return you get the NSW incentive, and often ongoing credits or a special electricity plan from the provider.

You can connect a battery to a VPP even without solar panels, although you’ll need solar for the federal rebate.

It can be worthwhile, but it’s a contract, so read it before you sign. Things to check:

• How much of your battery the operator can use, and how often.
• Whether you have to switch electricity retailer or plan.
• Whether there’s a minimum term or an exit fee.
• How VPP use affects your battery warranty.

On the last point, some battery warranties cap the total energy a battery can put through over its life. Extra VPP use can count towards that cap. We cover this in our guide to Virtual Power Plants.

Joining a VPP is optional for the federal rebate. Your battery only needs to be capable of joining one.

You don’t need to apply for the federal rebate yourself. Here’s how it works with us:

1. Quote. We look at your bills and solar system, recommend a battery size and quote the price with the rebate already taken off.
2. Installation. Our accredited electricians install the battery and complete the documentation the Clean Energy Regulator requires, including geotagged photos.
3. Certificates. We create the STCs in the REC Registry. The rebate has already come off your invoice, so there’s nothing to wait for.
4. VPP (optional). If you decide to join a VPP, we help you compare providers and connect the battery. The NSW incentive is handled through the VPP provider.

If you’d rather spread the cost, eligible NSW homeowners can look at zero-interest loans through the NSW Home Energy Saver program. Lower-income households may also qualify for a Home Energy Saver discount once applications open. If you’re eligible for both, NSW recommends applying for the discount first.