Australia · costs in AUD
Reverse cycle split system air conditioner, wall hung
Emerald Energy ACSS25 Air Conditioner
Emerald Energy ACSS25 is a 2.5 kW reverse cycle split system air conditioner registered under Australia’s Energy Rating (GEMS) scheme (registration AAC7870).
- Energy rating (cooling)
- 4.5
- Heating: 3
- Annual electricity use
- 529 kWh
- 169 cooling + 360 heating
- Estimated running cost
- $169 / year
- $14 / month · $1,693 over 10 years
- Capacity
- 2.5 kW cooling
- 3.2 kW heating
3% less electricity than the median of 191 comparable 2.5 kW reverse cycle split system registrations (543 kWh a year) in the mixed zone. Uses less than 55% of them.
Across all 3,680 air conditioner registrations sold in Australia, it uses less than 93% (this compares very different sizes, so the cohort figure above is the useful one).
Annual kWh is the government label figure for a residential user in the mixed zone (Richmond NSW climate: Sydney, Melbourne, Adelaide, Perth). Mixed climate zone shown by default (Sydney, Melbourne, Adelaide, Perth); switch to cold or hot. Cost = kWh × 32c/kWh in AUD; change the price above to your tariff.
Emerald Energy ACSS25 running cost by climate zone
| Climate zone | kWh / year | Per year | 10 years |
|---|---|---|---|
| Cold zone | 1,059 | $339 | $3,389 |
| Mixed zone | 529 | $169 | $1,693 |
| Hot zone | 545 | $174 | $1,744 |
At 32c/kWh. Formula: cost = annual kWh × price. The kWh figure is the label’s residential estimate for that zone; commercial-profile figures are in the specifications.
Air conditioners that use less electricity
Same configuration and type, cooling capacity within 12% of 2.5 kW, at least 3% lower annual kWh in the mixed zone.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Daikin RXM20AVMA / FTXM20AVMA2.7 kW heating2.2 kW cooling380 kWh/yr | 5.5 | $122 | |
| Actron Air WRC-026DS / WRE-026DS2.7 kW heating2.6 kW cooling404 kWh/yr | 6.5 | $129 | |
| Midea MFEP26VB-W/MFEP26VB-N2.7 kW heating2.6 kW cooling404 kWh/yr | 6.5 | $129 | |
| Midea MFEP26VA-W/MFEP26VA-N2.7 kW heating2.6 kW cooling405 kWh/yr | 6.5 | $130 | |
| Actron Air WRC-026CS / WRE-026CS2.8 kW heating2.6 kW cooling410 kWh/yr | 6.5 | $131 |
Air conditioners similar to the Emerald Energy ACSS25
Technically comparable registrations: same configuration and type, capacity within 12%.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Kaden KSI-2.52.8 kW heating2.5 kW cooling463 kWh/yr | 5 | $148 | |
| Midea MFAG26VB-W/MFAG26VB-N2.8 kW heating2.5 kW cooling463 kWh/yr | 5 | $148 | |
| Pioneer International HPR-09A22.6 kW heating2.5 kW cooling418 kWh/yr | 4 | $134 | |
| Carrier 42QHG026N8PB/38QUH026N8PB2.8 kW heating2.5 kW cooling463 kWh/yr | 5 | $148 | |
| Carrier 38QRF026N8/42QRF026N82.8 kW heating2.5 kW cooling463 kWh/yr | 5 | $148 | |
| Rinnai HONRTX25/HINRTX252.8 kW heating2.5 kW cooling463 kWh/yr | 5 | $148 | |
| Comfee CASG-XG26B/CASN-XG26B2.8 kW heating2.5 kW cooling463 kWh/yr | 5 | $148 | |
| Daikin RXM25AVMA / FTXM25AVMA3.2 kW heating2.5 kW cooling446 kWh/yr | 5.5 | $143 |
Compare ACSS25 with another model
Emerald Energy ACSS25 specifications
- Type
- Reverse cycle
- Configuration
- Split system
- Air distribution
- Non-ducted
- Indoor unit
- Wall hung
- Rated cooling capacity (35 °C)
- 2.50 kW
- Cooling power input
- 0.52 kW
- Rated heating capacity (7 °C)
- 3.20 kW
- Heating power input
- 0.67 kW
- EER, full load (tested)
- 4.78
- COP, full load (tested)
- 4.77
- Rated AEER
- 4.76
- Rated ACOP
- 4.74
- Standby power (PIA)
- 1.6 W
- Compressor
- Variable speed, Inverter
- Refrigerant
- R32
- Power supply
- Single phase
- Indoor sound power
- 58.7 dB(A)
- Outdoor sound power
- 59.3 dB(A)
- Demand response (AS/NZS 4755)
- Yes
- Country of manufacture
- China
Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.
Emerald Energy ACSS25 zoned energy rating figures
As published for each climate zone. Residential figures drive the star ratings; commercial figures assume a commercial usage pattern.
| Zone | Profile | Cooling stars | Heating stars | Cooling kWh | Heating kWh |
|---|---|---|---|---|---|
| Coldcommercial | commercial | – | – | 201 | 309 |
| Coldresidential | residential | 4.5 | 2.5 | 109 | 950 |
| Mixedcommercial | commercial | – | – | 272 | 163 |
| Mixedresidential | residential | 4.5 | 3.0 | 169 | 360 |
| Hotcommercial | commercial | – | – | 625 | 35 |
| Hotresidential | residential | 5.0 | 3.5 | 490 | 55 |
Part-load test points (20 values)
- h__h2_ext_cap_power_rated
- 960 W
- c__t1_half_cap_power_rated
- 220 W
- c__t1_have_min_cap_results
- No
- h__h1_half_cap_power_rated
- 280 W
- h__h1_have_min_cap_results
- No
- h__h3_have_ext_cap_results
- No
- h__h2_have_full_cap_results
- No
- h__h2_have_half_cap_results
- No
- h__h3_have_full_cap_results
- No
- h__h3_have_half_cap_results
- No
- h__h2_ext_cap_heat_cap_rated
- 3200 W
- h__h1_half_cap_heat_cap_rated
- 1600 W
- h__h2_is_capable_extended_load
- Yes
- c__low_temp_full_cap_power_rated
- 475.28000000000003 W
- c__low_temp_half_cap_power_rated
- 170 W
- c__low_temp_have_min_cap_results
- No
- c__t1_half_cap_cooling_cap_rated
- 1250 W
- c__low_temp_have_half_cap_results
- Yes
- c__low_temp_full_cap_cooling_cap_rated
- 2692.5 W
- c__low_temp_half_cap_cooling_cap_rated
- 1280 W
Australian GEMS registration details
- Registration number
- AAC7870
- GEMS registration id
- 157753
- Status
- approved, available (self-reported)
- Registration expires
- 11 November 2028
- Registered for sale in
- Australia
- Family
- –
- Regulatory standard
- [SEER Non Multi-Split <=65kW] GEMS (Air Conditioners up to 65kW) Determination 2019
- Test standard
- AS/NZS 3823.1.1:2012
- MEPS
- 2019
- Product class
- Class 8
Source: Australian Government Energy Rating (GEMS) registration data, DCCEEW via data.gov.au (CC BY 3.0 AU). Dataset published 19 September 2026; last checked 20 September 2026. Manufacturer: emeraldplanet.com.au. How the derived figures are calculated.