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

Among 154 certified models in this data, 40%+ more 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 $106.

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

The median model here runs $106 a year, 6% more than the $100 median across all certified room air conditioners.

What's the cheapest model among 40%+ more 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 · 154 certified models

40%+ More Efficient Room Air Conditioners

154 of 396 certified room air conditioners meet the bar for "40%+ More Efficient Room Air Conditioners." At the U.S. average electricity rate they cost $55 to $348 a year to run — median $106, versus $100 across the whole category.

The 50 most efficient (of 154)

40%+ More Efficient Room Air Conditioners, ranked by certified annual kWh
#	Model	kWh/yr	$/yr (US avg)
1	LG LW6023IVSMmost efficient	290	$55
2	GE PWJV08Wmost efficient	375	$71
3	Midea 1010451315most efficient	375	$71
4	Midea 1014242943most efficient	375	$71
5	Midea MAW08U1QWTmost efficient	375	$71
6	Midea MAW08U2QWTmost efficient	375	$71
7	Midea MAW08V1WBKmost efficient	375	$71
8	Midea MAW08V1WBK-Tmost efficient	375	$71
9	Midea MAW08V1WWTmost efficient	375	$71
10	Midea MAW08V1WWT-Tmost efficient	375	$71
11	Midea MWAUQB-08CRFN8-BCP0most efficient	375	$71
12	Midea MWEUWA-08CRFN8-BCP0most efficient	375	$71
13	TCL T08WV3Smost efficient	375	$71
14	TCL T08WV9Smost efficient	375	$71
15	TCL T08WV9SBmost efficient	375	$71
16	TCL W8WC72most efficient	375	$71
17	TCL W8WC72-Bmost efficient	375	$71
18	K�hl KCVS08B10Bmost efficient	384	$72
19	LG LW8022IVSM	387	$73
20	GREE GJC08BU-A6DRNJ2Amost efficient	389	$73
21	HOUSE KOBO KOBOGJC08BU	392	$74
22	Midea MAW08HV1KWT-Amost efficient	397	$75
23	Midea MWAUQB-08HRFN8-BCN11most efficient	397	$75
24	Midea MAH09B1AGRmost efficient	405	$76
25	Midea MAH09H1AGRmost efficient	405	$76
26	Midea MAH09N1AGRmost efficient	405	$76
27	Midea MAH09S1AGRmost efficient	405	$76
28	Midea MAH09W1AGRmost efficient	405	$76
29	Midea MWCUPWHP-09HEFN8-BCL1most efficient	405	$76
30	Midea MWCUPWHP-09HEFN8-BCL1Nmost efficient	405	$76
31	Friedrich KCVS08B10Amost efficient	408	$77
32	Keystone KSTAW08INV-HCmost efficient	414	$78
33	Midea MAW08HV1CWTmost efficient	414	$78
34	Midea MWAUQB-08HRFN8-BCL0most efficient	414	$78
35	Gradient CCHP11most efficient	415	$78
36	Midea MAT08R1FWTKmost efficient	426	$80
37	Midea MAT08R1SWTKmost efficient	426	$80
38	Midea MWEUTW-08CRFN8-BCN1most efficient	426	$80
39	Seasons ST08VB1most efficient	426	$80
40	GREE GJH09BW-A6DRNL1Amost efficient	462	$87
41	Kinghome KHWA09INmost efficient	462	$87
42	GE PWJV10Wmost efficient	469	$88
43	Midea 1010451479most efficient	469	$88
44	Midea 1014264129most efficient	469	$88
45	Midea MAW10U1QWTmost efficient	469	$88
46	Midea MAW10U2QWTmost efficient	469	$88
47	Midea MAW10V1WWTmost efficient	469	$88
48	Midea MAW10V1WWT-Tmost efficient	469	$88
49	Midea MWAUQB-10CRFN8-BCP0most efficient	469	$88
50	Midea MWEUWA-10CRFN8-BCP0most efficient	469	$88

Other efficiency facets

Questions, answered with the data

How much does it cost to run 40%+ more efficient room air conditioners?: Among 154 certified models in this data, 40%+ more 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 $106.
Do 40%+ more efficient room air conditioners cost more or less than the average room air conditioner?: The median model here runs $106 a year, 6% more than the $100 median across all certified room air conditioners.
What's the cheapest model among 40%+ more 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 154)

Other efficiency facets

Questions, answered with the data

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