How much does it cost to run most efficient room air conditioners?

Among 122 certified models in this data, most efficient room air conditioners cost $55 to $348 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $88.

Do most efficient room air conditioners cost more or less than the average room air conditioner?

The median model here runs $88 a year, 12% less than the $100 median across all certified room air conditioners.

What's the cheapest model among most efficient room air conditioners?

The LG LW6023IVSM costs about $55 a year at the U.S. average rate (290 kWh/yr) — the lowest certified figure in this group.

What does the certified annual-kWh figure assume for room air conditioners?

The certified annual kWh assumes 750 cooling hours per year (the DOE standard). In hot climates real usage can run well above that; in mild ones, below.

Data through April 2026

Room Air Conditioners · 122 certified models

Most Efficient Room Air Conditioners

Among all certified room air conditioners, 122 clear the "Most Efficient Room Air Conditioners" threshold — running $55 to $348 a year at national-average rates (median $88, category-wide median $100).

The 50 most efficient (of 122)

Most Efficient Room Air Conditioners, ranked by certified annual kWh
#	Model	kWh/yr	$/yr (US avg)
1	LG LW6023IVSMmost efficient	290	$55
2	Midea MAW06U1QWTmost efficient	298	$56
3	Midea MAW06V1QWBL-Tmost efficient	298	$56
4	Midea MAW06V1QWTmost efficient	298	$56
5	Midea MAW06V1UBLmost efficient	298	$56
6	Midea MAW06V1UWTmost efficient	298	$56
7	Midea MWAUQB-06CRFN8-BCN11most efficient	298	$56
8	GE PWJV08Wmost efficient	375	$71
9	Midea 1010451315most efficient	375	$71
10	Midea 1014242943most efficient	375	$71
11	Midea MAW08U1QWTmost efficient	375	$71
12	Midea MAW08U2QWTmost efficient	375	$71
13	Midea MAW08V1WBKmost efficient	375	$71
14	Midea MAW08V1WBK-Tmost efficient	375	$71
15	Midea MAW08V1WWTmost efficient	375	$71
16	Midea MAW08V1WWT-Tmost efficient	375	$71
17	Midea MWAUQB-08CRFN8-BCP0most efficient	375	$71
18	Midea MWEUWA-08CRFN8-BCP0most efficient	375	$71
19	TCL T08WV3Smost efficient	375	$71
20	TCL T08WV9Smost efficient	375	$71
21	TCL T08WV9SBmost efficient	375	$71
22	TCL W8WC72most efficient	375	$71
23	TCL W8WC72-Bmost efficient	375	$71
24	K�hl KCVS08B10Bmost efficient	384	$72
25	Midea MAW08V1KWT-Amost efficient	387	$73
26	Midea MAW08V1KYWT-Smost efficient	387	$73
27	Midea MWFUQB-8CRFN8-BCN11most efficient	387	$73
28	GREE GJC08BU-A6DRNJ2Amost efficient	389	$73
29	Midea MAW08HV1KWT-Amost efficient	397	$75
30	Midea MWAUQB-08HRFN8-BCN11most efficient	397	$75
31	Midea MAH09B1AGRmost efficient	405	$76
32	Midea MAH09H1AGRmost efficient	405	$76
33	Midea MAH09N1AGRmost efficient	405	$76
34	Midea MAH09S1AGRmost efficient	405	$76
35	Midea MAH09W1AGRmost efficient	405	$76
36	Midea MWCUPWHP-09HEFN8-BCL1most efficient	405	$76
37	Midea MWCUPWHP-09HEFN8-BCL1Nmost efficient	405	$76
38	Friedrich KCVS08B10Amost efficient	408	$77
39	Keystone KSTAW08INV-HCmost efficient	414	$78
40	Midea MAW08HV1CWTmost efficient	414	$78
41	Midea MWAUQB-08HRFN8-BCL0most efficient	414	$78
42	Gradient CCHP11most efficient	415	$78
43	Midea MAT08R1FWTKmost efficient	426	$80
44	Midea MAT08R1SWTKmost efficient	426	$80
45	Midea MWEUTW-08CRFN8-BCN1most efficient	426	$80
46	Seasons ST08VB1most efficient	426	$80
47	GREE GJH09BW-A6DRNL1Amost efficient	462	$87
48	Kinghome KHWA09INmost efficient	462	$87
49	GE PWJV10Wmost efficient	469	$88
50	Midea 1010451479most efficient	469	$88

Other efficiency facets

Questions, answered with the data

How much does it cost to run most efficient room air conditioners?: Among 122 certified models in this data, most efficient room air conditioners cost $55 to $348 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $88.
Do most efficient room air conditioners cost more or less than the average room air conditioner?: The median model here runs $88 a year, 12% less than the $100 median across all certified room air conditioners.
What's the cheapest model among most efficient room air conditioners?: The LG LW6023IVSM costs about $55 a year at the U.S. average rate (290 kWh/yr) — the lowest certified figure in this group.
What does the certified annual-kWh figure assume for room air conditioners?: The certified annual kWh assumes 750 cooling hours per year (the DOE standard). In hot climates real usage can run well above that; in mild ones, below.

The 50 most efficient (of 122)

Other efficiency facets

Questions, answered with the data

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