NSW's air conditioner incentive is not a rebate you claim. It is a discount an installer applies to your quote before the work starts, worth up to $560 on a 6 kW split, and you cannot get it afterwards. We do not offer it, so here is how it works, who does offer it, and why the model you pick moves $109 a year, every year.
A discount on the quote, not a cheque in the mail
Most people searching for a rebate picture a form, a wait and a payment. This one does not work that way.
NSW calls it the air conditioner upgrade incentive, and it reaches you as an upfront discount in the quote for a new system. There is no claim afterwards. The scheme's own page is blunt about it: you will not be reimbursed for work already completed.
So the paperwork has to be signed before the installation starts. Sign it late and there is nothing to apply the discount to.
The money comes from the Energy Savings Scheme, one half of the state's Energy Security Safeguard. The other half is the Peak Demand Reduction Scheme, and the same job sits in both: it is activity D16 in one and HVAC1 in the other.
We do not offer this discount
Our quotes do not carry it, and we would rather say so here than have you find out at the bottom of a quote.
An installer can only apply the discount if they are partnered with an Accredited Certificate Provider, a business accredited by IPART to create the certificates that fund it. We are not partnered with one.
If the discount is the deciding factor for you, that is a fair reason to use someone else, and NSW's own advice is to get several quotes anyway. Ask each installer whether they offer the incentive, and ask to see it as a line on the quote rather than a promise in conversation.
What it is worth, and what moves the number
NSW publishes two indicative figures: up to $550 to install a new 6 kW system, and up to $560 to replace an old unit with a 6 kW split system.
Both are indicative only, and the department lists what moves them: the installer you choose, your location and the travel involved, the model, the design of your home and any extra building work, the administrative and compliance cost of securing the discount, and the installer's margin.
You also make a minimum payment towards the unit and the installation. The discount reduces an installation cost, it never covers one.
The model you choose moves more money than the discount does
All 16 rated 6 kW splits, lowest to highest
| Model | Stars (cool / heat) | kWh a year | Cost a year |
|---|---|---|---|
| Daikin Alira X 6kW | 4.5 / 3 | 1,205 | $383 |
| Mitsubishi Electric MSZ-AP 6kW | 4 / 2.5 | 1,274 | $405 |
| Panasonic RZ 6kW | 3.5 / 3 | 1,278 | $406 |
| Panasonic Z Series 6kW | 3.5 / 3 | 1,278 | $406 |
| Rinnai PB Series 6kW | 4 / 2.5 | 1,290 | $410 |
| Carrier Indigo 6kW | 4 / 2 | 1,296 | $412 |
| Daikin Cora 6kW | 4 / 3 | 1,309 | $416 |
| MHI Bronte WF1 6.3kW | 3.5 / 3 | 1,308 | $416 |
| MHI Avanti Plus 6kW | 3 / 3 | 1,337 | $425 |
| Fujitsu Comfort 6kW | 3.5 / 2 | 1,383 | $440 |
| Daikin Lite 6kW | 3.5 / 2 | 1,383 | $440 |
| Fujitsu Lifestyle 6kW | 4 / 2.5 | 1,389 | $442 |
| Mitsubishi Electric MSZ-LN 6.1kW | 3 / 2.5 | 1,433 | $456 |
| MHI Ciara 6.3kW | 3.5 / 2.5 | 1,462 | $465 |
| Daikin Skywall 6kW | 2 / 2.5 | 1,528 | $486 |
| Daikin Zena 6kW | 2.5 / 2.5 | 1,547 | $492 |
A 6 kW split is the size NSW uses in both of its examples, so we costed ours.
Sixteen 6 kW splits in our catalogue carry full GEMS cooling and heating figures. At the Sydney median rate including GST, 31.79 cents a kWh from 170 plans in September 2026, the cheapest to run costs $383 a year and the dearest $492.
| Model | Stars, cool / heat | kWh a year | Cost a year |
|---|---|---|---|
| Daikin Alira X 6kW | 4.5 / 3 | 1,205 | $383 |
| Mitsubishi Electric MSZ-AP 6kW | 4 / 2.5 | 1,274 | $405 |
| Carrier Indigo 6kW | 4 / 2 | 1,296 | $412 |
| Fujitsu Lifestyle 6kW | 4 / 2.5 | 1,389 | $442 |
| Daikin Skywall 6kW | 2 / 2.5 | 1,528 | $486 |
| Daikin Zena 6kW | 2.5 / 2.5 | 1,547 | $492 |
Those are the two ends and four in between. The chart below carries all sixteen.
That is $109 a year between the best and worst at one size. The larger discount, $560, is about five years of that gap, and a system fitted today will still be running well past five years.
Both levers pull the same way
There is no tension between choosing a good model and getting a good discount.
NSW says plainly that a more efficient model earns a bigger installation discount as well as lower running costs. The scheme's certificate estimator reads air conditioner specifications from the Greenhouse and Energy Minimum Standards registry, refreshed at the end of each week by brand and model.
That is the same registry behind the running costs and the star ratings quoted across this site. Two warnings from NSW come with it: not every model is eligible, and two eligible models of the same size in kW do not earn the same amount.
The paperwork that has to come before the work
- 1Nomination form, signed by youbefore
- 2Quote showing the work, the discount and the totalbefore
- 3Documents proving you are eligible, if askedbefore
- 4The installationthe work
- 5Post Implementation Declaration, signed by youafter
- 6Photos of the finished installation, taken by the installerafter
The sequence is fixed, and every step of it is there to protect you.
Before the installation, you sign a nomination form and agree a quote setting out the work, the discount and the total. You may be asked for documents proving you are eligible.
After it, you sign a Post Implementation Declaration that the requirements were met, and the installer photographs the finished job as proof it happened.
None of that replaces the checks you would run anyway. Whether an installer is licensed is a separate question from whether they are tied to an accredited provider, on separate registers. If your paperwork does not name the provider, IPART administers the scheme and is the place to ask.
Sources
- NSW Climate and Energy Action, Air conditioner upgrade incentive: updated 6 February 2026. The discount amounts, the six factors that vary them, the minimum payment, the no reimbursement rule, the Accredited Certificate Provider requirement and the four steps.
- NSW Climate and Energy Action, Air conditioner eligibility: the activity is D16 in the Energy Savings Scheme and HVAC1 in the Peak Demand Reduction Scheme.
- NSW Climate and Energy Action, Air conditioner certificates: specifications updated at the end of each week from the GEMS Registry by brand and model.
- NSW Climate and Energy Action, Peak Demand Reduction Scheme: updated 14 August 2026. The scheme runs from 2022 to 2050, IPART administers it, and a new Rule took effect on 1 July 2026.
- Accredited Certificate Providers, NSW energy schemes register: the register the incentive page sends both households and installers to.
- Verify.licence.nsw.gov.au: the NSW public registers, including contractors and trades people
- GEMS registration data as of September 2026 and the Ausgrid median usage rate of 31.79 cents a kWh including GST across 170 plans, both from our own monthly sync: the sixteen 6 kW splits and their annual costs.
