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

Among 154 certified models in this data, most efficient room air conditioners cost $52 to $339 a year to run at the U.S. average electricity rate (18.3¢/kWh) — a median of $98.

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

The median model here runs $98 a year, 0% less than the $98 median across all certified room air conditioners.

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

The Midea MAW06S1KWT-A costs about $52 a year at the U.S. average rate (281 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 June 2026

Room Air Conditioners · 154 certified models

Most Efficient Room Air Conditioners

Among all certified room air conditioners, 154 clear the "Most Efficient Room Air Conditioners" threshold — running $52 to $339 a year at national-average rates (median $98, category-wide median $98).

The 50 most efficient (of 154)

Most Efficient Room Air Conditioners, ranked by certified annual kWh
#	Model	kWh/yr	$/yr (US avg)
1	Midea MAW06S1KWT-Amost efficient	281	$52
2	Midea MAW06V1KYWT-Smost efficient	281	$52
3	LG LW6023IVSMmost efficient	290	$53
4	Midea MAW06U1QWTmost efficient	298	$55
5	Midea MAW06V1QWBL-Tmost efficient	298	$55
6	Midea MAW06V1QWTmost efficient	298	$55
7	Midea MAW06V1UBLmost efficient	298	$55
8	Midea MAW06V1UWTmost efficient	298	$55
9	Midea MWAUQB-06CRFN8-BCN11most efficient	298	$55
10	GE PWJV08Wmost efficient	375	$69
11	Midea 1010451315most efficient	375	$69
12	Midea 1014242943most efficient	375	$69
13	Midea MAW08U1QWTmost efficient	375	$69
14	Midea MAW08U2QWTmost efficient	375	$69
15	Midea MAW08V1WBKmost efficient	375	$69
16	Midea MAW08V1WBK-Tmost efficient	375	$69
17	Midea MAW08V1WWTmost efficient	375	$69
18	Midea MAW08V1WWT-Tmost efficient	375	$69
19	Midea MWAUQB-08CRFN8-BCP0most efficient	375	$69
20	Midea MWEUWA-08CRFN8-BCP0most efficient	375	$69
21	Midea MWFUWA-08CRFN8-BCP0most efficient	375	$69
22	TCL T08WV3Smost efficient	375	$69
23	TCL T08WV9Smost efficient	375	$69
24	TCL T08WV9SBmost efficient	375	$69
25	TCL W8WC72most efficient	375	$69
26	TCL W8WC72-Bmost efficient	375	$69
27	K�hl KCVS08B10Bmost efficient	384	$70
28	Midea MAW08U1KWTmost efficient	387	$71
29	Midea MAW08U1KWT-Amost efficient	387	$71
30	Midea MAW08V1KWT-Amost efficient	387	$71
31	Midea MAW08V1KYWT-Smost efficient	387	$71
32	Midea MWFUQB-8CRFN8-BCN11most efficient	387	$71
33	GREE GJC08BU-A6DRNJ2Amost efficient	389	$71
34	Midea MAW08HV1KWT-Amost efficient	397	$73
35	Midea MWAUQB-08HRFN8-BCN11most efficient	397	$73
36	Midea MAH09B1AGRmost efficient	405	$74
37	Midea MAH09H1AGRmost efficient	405	$74
38	Midea MAH09N1AGRmost efficient	405	$74
39	Midea MAH09S1AGRmost efficient	405	$74
40	Midea MAH09W1AGRmost efficient	405	$74
41	Midea MWCUPWHP-09HEFN8-BCL1most efficient	405	$74
42	Midea MWCUPWHP-09HEFN8-BCL1Nmost efficient	405	$74
43	Friedrich KCVS08B10Amost efficient	408	$75
44	Keystone KSTAW08INV-HCmost efficient	414	$76
45	Midea MAW08HV1CWTmost efficient	414	$76
46	Midea MWAUQB-08HRFN8-BCL0most efficient	414	$76
47	Gradient CCHP11most efficient	415	$76
48	Brothers 102378most efficient	426	$78
49	Midea MAT08R1FWTKmost efficient	426	$78
50	Midea MAT08R1SWTKmost efficient	426	$78

Other efficiency facets

Questions, answered with the data

How much does it cost to run most efficient room air conditioners?: Among 154 certified models in this data, most efficient room air conditioners cost $52 to $339 a year to run at the U.S. average electricity rate (18.3¢/kWh) — a median of $98.
Do most efficient room air conditioners cost more or less than the average room air conditioner?: The median model here runs $98 a year, 0% less than the $98 median across all certified room air conditioners.
What's the cheapest model among most efficient room air conditioners?: The Midea MAW06S1KWT-A costs about $52 a year at the U.S. average rate (281 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 154)

Other efficiency facets

Questions, answered with the data

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