How much does it cost to run 40%+ more efficient room air conditioners?

Among 184 certified models in this data, 40%+ more 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 $103.

Do 40%+ more efficient room air conditioners cost more or less than the average room air conditioner?

The median model here runs $103 a year, 6% more than the $98 median across all certified room air conditioners.

What's the cheapest model among 40%+ more 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 · 184 certified models

40%+ More Efficient Room Air Conditioners

184 of 439 certified room air conditioners meet the bar for "40%+ More Efficient Room Air Conditioners." At the U.S. average electricity rate they cost $52 to $339 a year to run — median $103, versus $98 across the whole category.

The 50 most efficient (of 184)

40%+ More 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	GE PWJV08Wmost efficient	375	$69
5	Midea 1010451315most efficient	375	$69
6	Midea 1014242943most efficient	375	$69
7	Midea MAW08U1QWTmost efficient	375	$69
8	Midea MAW08U2QWTmost efficient	375	$69
9	Midea MAW08V1WBKmost efficient	375	$69
10	Midea MAW08V1WBK-Tmost efficient	375	$69
11	Midea MAW08V1WWTmost efficient	375	$69
12	Midea MAW08V1WWT-Tmost efficient	375	$69
13	Midea MWAUQB-08CRFN8-BCP0most efficient	375	$69
14	Midea MWEUWA-08CRFN8-BCP0most efficient	375	$69
15	Midea MWFUWA-08CRFN8-BCP0most efficient	375	$69
16	TCL T08WV3Smost efficient	375	$69
17	TCL T08WV9Smost efficient	375	$69
18	TCL T08WV9SBmost efficient	375	$69
19	TCL W8WC72most efficient	375	$69
20	TCL W8WC72-Bmost efficient	375	$69
21	K�hl KCVS08B10Bmost efficient	384	$70
22	LG LW8022IVSM	387	$71
23	GREE GJC08BU-A6DRNJ2Amost efficient	389	$71
24	HOUSE KOBO KOBOGJC08BU	392	$72
25	Midea MAW08HV1KWT-Amost efficient	397	$73
26	Midea MWAUQB-08HRFN8-BCN11most efficient	397	$73
27	Midea MAH09B1AGRmost efficient	405	$74
28	Midea MAH09H1AGRmost efficient	405	$74
29	Midea MAH09N1AGRmost efficient	405	$74
30	Midea MAH09S1AGRmost efficient	405	$74
31	Midea MAH09W1AGRmost efficient	405	$74
32	Midea MWCUPWHP-09HEFN8-BCL1most efficient	405	$74
33	Midea MWCUPWHP-09HEFN8-BCL1Nmost efficient	405	$74
34	Friedrich KCVS08B10Amost efficient	408	$75
35	Keystone KSTAW08INV-HCmost efficient	414	$76
36	Midea MAW08HV1CWTmost efficient	414	$76
37	Midea MWAUQB-08HRFN8-BCL0most efficient	414	$76
38	Gradient CCHP11most efficient	415	$76
39	Brothers 102378most efficient	426	$78
40	Midea MAT08R1FWTKmost efficient	426	$78
41	Midea MAT08R1SWTKmost efficient	426	$78
42	Midea MWEUTW-08CRFN8-BCN1most efficient	426	$78
43	Seasons ST08VB1most efficient	426	$78
44	GREE GJH09BW-A6DRNL1Amost efficient	462	$85
45	Kinghome KHWA09INmost efficient	462	$85
46	GE PWJV10Wmost efficient	469	$86
47	Midea 1010451479most efficient	469	$86
48	Midea 1014264129most efficient	469	$86
49	Midea MAW10U1KWTmost efficient	469	$86
50	Midea MAW10U1KWT-Amost efficient	469	$86

Other efficiency facets

Questions, answered with the data

How much does it cost to run 40%+ more efficient room air conditioners?: Among 184 certified models in this data, 40%+ more 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 $103.
Do 40%+ more efficient room air conditioners cost more or less than the average room air conditioner?: The median model here runs $103 a year, 6% more than the $98 median across all certified room air conditioners.
What's the cheapest model among 40%+ more 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 184)

Other efficiency facets

Questions, answered with the data

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