Climate zone

Electricity pricec/kWh

Energy rating (cooling): 4.5; Heating: 3
Annual electricity use: 554 kWh; 162 cooling + 392 heating
Estimated running cost: $177 / year; $15 / month · $1,773 over 10 years
Capacity: 2.5 kW cooling; 3.2 kW heating

2% more 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 35% of them.

Across all 3,680 air conditioner registrations sold in Australia, it uses less than 91% (this compares very different sizes, so the cohort figure above is the useful one).

coolingheatingClick a zone to use it across the page.

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.

LG WH09SKU-18 running cost by climate zone

Climate zone	kWh / year	Per month	Per year	5 years	10 years
Cold zone (Canberra, Hobart, Ballarat, alpine areas)	1,088	$29	$348	$1,741	$3,482
Mixed zone (Sydney, Melbourne, Adelaide, Perth)	554	$15	$177	$886	$1,773
Hot zone (Brisbane, Darwin, Cairns, Townsville)	523	$14	$167	$837	$1,674

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	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than
Daikin RXM20AVMA / FTXM20AVMA2.7 kW heating2.2 kW cooling380 kWh/yr	2.2 kW	2.7 kW	5.5	380	$122	79% of similar
Actron Air WRC-026DS / WRE-026DS2.7 kW heating2.6 kW cooling404 kWh/yr	2.6 kW	2.7 kW	6.5	404	$129	99% of similar
Midea MFEP26VB-W/MFEP26VB-N2.7 kW heating2.6 kW cooling404 kWh/yr	2.6 kW	2.7 kW	6.5	404	$129	99% of similar
Midea MFEP26VA-W/MFEP26VA-N2.7 kW heating2.6 kW cooling405 kWh/yr	2.6 kW	2.7 kW	6.5	405	$130	98% of similar
Actron Air WRC-026CS / WRE-026CS2.8 kW heating2.6 kW cooling410 kWh/yr	2.6 kW	2.8 kW	6.5	410	$131	98% of similar

Air conditioners similar to the LG WH09SKU-18

Technically comparable registrations: same configuration and type, capacity within 12%.

Model	Cooling	Heating	Stars	kWh / yr	Est. cost / yr	Uses less than
Kaden KSI-2.52.8 kW heating2.5 kW cooling463 kWh/yr	2.5 kW	2.8 kW	5	463	$148	82% of similar
Carrier 38QAF026N8/42QAF026N82.8 kW heating2.5 kW cooling463 kWh/yr	2.5 kW	2.8 kW	5	463	$148	82% of similar
Midea MFAG26VB-W/MFAG26VB-N2.8 kW heating2.5 kW cooling463 kWh/yr	2.5 kW	2.8 kW	5	463	$148	82% of similar
Pioneer International HPR-09A22.6 kW heating2.5 kW cooling418 kWh/yr	2.5 kW	2.6 kW	4	418	$134	97% of similar
Carrier 38QRF026N8/42QRF026N82.8 kW heating2.5 kW cooling463 kWh/yr	2.5 kW	2.8 kW	5	463	$148	82% of similar
Rinnai HONRTX25/HINRTX252.8 kW heating2.5 kW cooling463 kWh/yr	2.5 kW	2.8 kW	5	463	$148	82% of similar
Comfee CASG-XG26B/CASN-XG26B2.8 kW heating2.5 kW cooling463 kWh/yr	2.5 kW	2.8 kW	5	463	$148	82% of similar
Daikin RXM25AVMA / FTXM25AVMA3.2 kW heating2.5 kW cooling446 kWh/yr	2.5 kW	3.2 kW	5.5	446	$143	91% of similar

Compare WH09SKU-18 / WH09SKN-18 with another model

LG WH09SKU-18 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: 0.51 kW
Rated heating capacity (7 °C): 3.20 kW
Heating power input: 0.65 kW
EER, full load (tested): 5.07
COP, full load (tested): 5.00
Rated AEER: 4.81
Rated ACOP: 4.84
Standby power (PIA): 2.4 W
Compressor: Variable speed, Inverter
Refrigerant: R32
Power supply: Single phase
Indoor sound power: 65.5 dB(A)
Outdoor sound power: 55.9 dB(A)
Demand response (AS/NZS 4755): Yes
Country of manufacture: Thailand

Dimensions are not collected for registrations under the 2019 Determination, so they are shown only where the source has them.

LG WH09SKU-18 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	TCSPF	HSPF
Coldcommercial	commercial	–	–	142	333	12.46	4.30
Coldresidential	residential	4.5	2.5	104	984	6.40	4.27
Mixedcommercial	commercial	–	–	222	183	9.49	4.51
Mixedresidential	residential	4.5	3.0	162	392	6.27	4.51
Hotcommercial	commercial	–	–	549	41	8.48	4.60
Hotresidential	residential	5.5	3.0	459	64	7.05	4.62

Part-load test points (23 values)

c__t1_min_cap_power_rated: 230 W
h__h2_ext_cap_power_rated: 1250 W
c__t1_half_cap_power_rated: 235 W
c__t1_have_min_cap_results: Yes
h__h1_half_cap_power_rated: 321 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: 3800 W
h__h1_half_cap_heat_cap_rated: 1600 W
h__h2_is_capable_extended_load: Yes
c__low_temp_min_cap_power_rated: 148 W
c__t1_min_cap_cooling_cap_rated: 1150 W
c__low_temp_full_cap_power_rated: 467.968 W
c__low_temp_half_cap_power_rated: 170 W
c__t1_half_cap_cooling_cap_rated: 1250 W
c__low_temp_have_half_cap_results: Yes
c__low_temp_min_cap_cooling_cap_rated: 1100 W
c__low_temp_full_cap_cooling_cap_rated: 2692.5 W
c__low_temp_half_cap_cooling_cap_rated: 1337 W

Australian GEMS registration details

Registration number: AAC7555
GEMS registration id: 154213
Status: approved, available (self-reported)
Registration expires: 6 June 2028
Registered for sale in: Australia, New Zealand
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. How the derived figures are calculated.