For Australian households and businesses looking to upgrade or install new air conditioning in 2026, understanding the latest energy ratings and available government incentives is crucial. While the core Zoned Energy Rating Label (ZERL) system remains consistent, significant updates to state rebate programs and ongoing federal reviews mean smarter buying decisions can unlock thousands in savings. Victoria, New South Wales, and South Australia continue to offer substantial upfront discounts, with some changes taking effect, while Queensland’s direct purchase rebates have ceased for 2026. This guide details what you need to know to make an informed, energy-efficient purchase this year.
The Zoned Energy Rating Label (ZERL) in 2026: Your Essential Guide
The Zoned Energy Rating Label (ZERL), introduced in 2019 and fully implemented since 2020, is the mandatory standard for non-ducted air conditioners sold in Australia. It provides a more accurate picture of an air conditioner’s performance by considering Australia’s diverse climates. Unlike the older single-star rating, the ZERL features:
- Three Climate Zones: Ratings are provided for Hot (e.g., Brisbane, Darwin), Average/Mixed (e.g., Sydney, Adelaide, Perth), and Cold (e.g., Melbourne, Canberra, Hobart) zones.
- Dual Ratings: Separate star ratings (up to 10 stars) for both cooling (blue stars) and heating (red stars) efficiency.
- Annual Energy Consumption: Estimated yearly energy use in kilowatt-hours (kWh) for each climate zone, allowing for direct running cost comparisons.
- Noise Levels: Indication of the indoor and outdoor unit’s noise output in decibels (dBA).
“The 2026 Minimum Energy Performance Standards (MEPS) for residential split-system and small ducted air conditioners broadly correspond to a ~3-star rating, setting the floor for legal sales in Australia.”
When choosing an air conditioner in 2026, always check the ZERL and focus on the star ratings and annual kWh consumption relevant to your specific climate zone. A higher star rating means greater energy efficiency and lower running costs over the unit’s lifespan.
Key Updates to Government Rebates in 2026
Federal and state governments continue to drive energy efficiency through various schemes, with some notable changes and ongoing programs in 2026.
Victoria: Victorian Energy Upgrades (VEU) - Up To $5,530 Discount
The VEU program remains Australia’s most generous air conditioning incentive. In 2026, eligible Victorian households can receive upfront discounts ranging from $70 to $5,530 on new, energy-efficient reverse-cycle air conditioners. The largest discounts apply when replacing inefficient gas heating systems with ducted reverse-cycle units.
Important Changes from 30 September 2026:
- Co-payment Increase: The mandatory customer co-payment for ducted systems and multi-head splits (10kW or more) will rise from $1,000 to $3,000 (inc GST). For smaller non-ducted units, the co-payment remains at $200, and under-10kW multi-heads stay at $1,000.
- Capacity Cap: Incentive calculations for multi-split and ducted reverse-cycle air conditioners will be capped at 20 kilowatts of heating and cooling capacity, with additional capacity beyond 17kW not attracting further rebate value.
If you’re considering a larger ducted or multi-head system in Victoria, securing a quote before the end of September 2026 could result in a significantly larger discount. To learn more about how to maximise these savings, refer to our guide: Your 2026 Guide: Claim Up To $15,000 in Energy Rebates Across Australia.
New South Wales: Energy Savings Scheme (ESS) - Up To $2,600+ Discount & 0% Loans
NSW households and businesses can access upfront discounts from $200 to over $2,600 on eligible energy-efficient reverse-cycle air conditioners through the ESS. Typical discounts for a split system are around $550 to $1,000. The discount amount varies based on the system’s efficiency, size, and your climate zone.
Additionally, the NSW Home Energy Saver program offers 0% interest loans up to $15,000 for home energy upgrades, including reverse-cycle air conditioning.
South Australia: Retailer Energy Productivity Scheme (REPS) - Heavily Discounted Installs
REPS entered a new five-year period on 1 January 2026, with updated government targets. The scheme provides upfront discounts on high-efficiency reverse-cycle systems, applied directly by accredited providers. While there isn’t a fixed dollar amount, discounts are significant, especially for Priority Group households (concession card holders and eligible low-income homes), who may see quality 7-star systems installed for just a few hundred dollars.
Queensland: No Direct Purchase Rebates in 2026
As of 2026, Queensland does not offer a state government rebate for purchasing or installing a new air conditioner. Previous programs like Climate Smart Energy Savers and the Energex PeakSmart cashback have closed. Eligible concession card holders may still access electricity bill concessions, such as the Medical Cooling & Heating Electricity Concession ($522.09/year) or the Queensland Electricity Rebate ($399.47/year).
ACT, WA, TAS, NT: Varied Support
- ACT: The Home Energy Support Program offers rebates up to 50% of the cost (capped at $2,500) for air conditioning, alongside 3% interest loans via the Sustainable Household Scheme.
- Western Australia, Tasmania, and Northern Territory: Currently, there are no broad state-specific air conditioner purchase rebates. Focus is generally on federal incentives or general electricity concessions.
Choosing the Right Energy-Efficient Air Conditioner in 2026
Beyond star ratings, consider these factors when selecting a new unit:
- Correct Sizing: An undersized unit will work harder and use more energy, while an oversized unit costs more upfront and cycles inefficiently. Consult a professional to determine the optimal kW capacity for your space, considering room size, insulation, windows, and climate.
- Inverter Technology: Most modern, efficient reverse-cycle air conditioners utilise inverter technology, which continuously adjusts compressor speed to maintain temperature, leading to greater efficiency and comfort compared to older, on/off systems.
- Refrigerant Type: Look for models using R32 refrigerant, which has a lower Global Warming Potential (GWP) than older refrigerants like R410A.
- Smart Features: Wi-Fi connectivity, programmable timers, and eco-modes can help optimise energy use and reduce running costs.
Consider electrifying your home to maximise savings, especially by replacing gas heating with an efficient reverse-cycle air conditioner. Our guide, Electrify Your Home in 2026: Real Costs, Rebates & Savings Up to $15,000+, provides comprehensive insights.
Real-World Costs and Energy-Efficient Models (2026)
Installation costs for split system air conditioners in Australia typically range from $1,795 to $4,815 (supply and installation) for entry-level to larger premium units. A standard 2.5kW unit might cost $2,500 to $3,200 installed in Melbourne.
Here’s a comparison of popular energy-efficient split-system models available in Australia for 2026 (RRP, excluding installation and potential rebates):
| Model (2.5-3.5kW) | Cooling (kW) | Heating (kW) | Cooling Stars (Avg) | Heating Stars (Avg) | RRP (AUD, Sep 2026) |
|---|---|---|---|---|---|
| Fujitsu 2.5kW Lifestyle Next | 2.5 | 3.2 | 5 | 3 | $2,069 |
| Rinnai 3.5kW Split System HSNRTX35 | 3.5 | 4.0 | 4.5 | 3 | $1,395 |
| Daikin Alira FTXF25TV1A (Est.) | 2.5 | 3.2 | 5.5 | 4.5 | ~$1,800 - $2,500 |
| Mitsubishi Electric MSZ-AP25VG (Est.) | 2.5 | 3.2 | 5.5 | 4.5 | ~$1,900 - $2,600 |
Note: Daikin and Mitsubishi Electric prices are estimates for comparable 2.5kW high-efficiency models, as specific 2026 RRPs for these exact models were not universally available in search results but they are consistently cited as leading efficient brands.
Installation Costs in 2026
Installation costs vary significantly based on complexity, unit size, and location.
| Installation Type (Average) | Cost Range (AUD) | Notes |
|---|---|---|
| Basic Split System (2.5-3.5kW) | $700 - $1,200 | Back-to-back installation, short pipe runs. |
| Larger Split System (5-9kW) | $800 - $1,000 | More complex installation, longer pipe runs, potential electrical upgrades. |
| Ducted System | $10,000 - $20,000+ | Full home solution, complex ducting, significant electrical work. |
| Dedicated Circuit/Switchboard Upgrade | $300 - $1,200 | Often required for larger units, especially in older homes. |
Always obtain multiple quotes from accredited installers. For states with rebate schemes (NSW, VIC, SA), ensure the installer is accredited with the relevant program to apply the discount upfront.
The Future of Energy Ratings: What’s on the Horizon?
The Department of Climate Change, Energy, Environment and Water (DCCEEW) is reviewing the standard underpinning air conditioner seasonal energy efficiency performance. An exposure draft of updates to the Greenhouse and Energy Minimum Standards (GEMS) (Air Conditioners up to 65kW) Determination 2019 is slated for release in late 2026 for public consultation. This indicates potential future refinements to how efficiency is calculated and rated, aiming to address issues where cooling energy use estimates didn’t match actual performance. The Energy Rating Regulatory, Enforcement and Compliance Administration Platform (RECAP) is also launching on 6 October 2026, which will streamline compliance and enforcement of energy efficiency standards.
Bottom Line
In 2026, navigating Australia’s air conditioner market requires a keen eye on the Zoned Energy Rating Label and an understanding of evolving state-based rebate programs. While the ZERL continues to be your primary tool for comparing efficiency across climates, be aware of the specific changes to Victorian and South Australian schemes, and the absence of direct purchase rebates in Queensland. Prioritise correctly sized, high-star-rated reverse-cycle inverter models using R32 refrigerant. By choosing wisely and leveraging available incentives, you can significantly reduce both your upfront costs and long-term energy bills, potentially saving thousands over the lifetime of your new system.