How much does it cost to run 50%+ more efficient room air conditioners?

Among 31 certified models in this data, 50%+ more efficient room air conditioners cost $72 to $296 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $113.

Do 50%+ more efficient room air conditioners cost more or less than the average room air conditioner?

The median model here runs $113 a year, 12% more than the $100 median across all certified room air conditioners.

What's the cheapest model among 50%+ more efficient room air conditioners?

The K�hl KCVS08B10B costs about $72 a year at the U.S. average rate (384 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 · 31 certified models

50%+ More Efficient Room Air Conditioners

Among all certified room air conditioners, 31 clear the "50%+ More Efficient Room Air Conditioners" threshold — running $72 to $296 a year at national-average rates (median $113, category-wide median $100).

All certified models

50%+ More Efficient Room Air Conditioners, ranked by certified annual kWh
#	Model	kWh/yr	$/yr (US avg)
1	K�hl KCVS08B10Bmost efficient	384	$72
2	Midea MAW08HV1KWT-Amost efficient	397	$75
3	Midea MWAUQB-08HRFN8-BCN11most efficient	397	$75
4	Midea MAH09B1AGRmost efficient	405	$76
5	Midea MAH09H1AGRmost efficient	405	$76
6	Midea MAH09N1AGRmost efficient	405	$76
7	Midea MAH09S1AGRmost efficient	405	$76
8	Midea MAH09W1AGRmost efficient	405	$76
9	Midea MWCUPWHP-09HEFN8-BCL1most efficient	405	$76
10	Midea MWCUPWHP-09HEFN8-BCL1Nmost efficient	405	$76
11	Gradient CCHP11most efficient	415	$78
12	GREE GJH09BW-A6DRNL1Amost efficient	462	$87
13	Kinghome KHWA09INmost efficient	462	$87
14	K�hl+ KHVS10B11Bmost efficient	530	$100
15	K�hl KCVS12B30Bmost efficient	567	$107
16	K�hl+ KHVS12B33Bmost efficient	598	$113
17	GE PWJV14Wmost efficient	656	$124
18	Midea MWEUWA-14CRFN8-BCP0most efficient	656	$124
19	TCL T14WV9Smost efficient	656	$124
20	TCL T14WV9SBmost efficient	656	$124
21	TCL W14WC72most efficient	656	$124
22	TCL W14WC72-Bmost efficient	656	$124
23	K�hl KCVS16B30Bmost efficient	722	$136
24	Midea MAW18S2KWT-Amost efficient	844	$159
25	Midea MWCUWH-18CRFN8-MCP0most efficient	844	$159
26	K�hl KCVM18B30Bmost efficient	1,074	$202
27	Hisense AW2223TW3Wmost efficient	1,100	$207
28	LG LW2422IVSM(208V)most efficient	1,216	$229
29	LG LW2422IVSM(230V)most efficient	1,216	$229
30	K�hl+ KHVL28B35Bmost efficient	1,495	$281
31	K�hl KCVL28B30Bmost efficient	1,571	$296

Other efficiency facets

Questions, answered with the data

How much does it cost to run 50%+ more efficient room air conditioners?: Among 31 certified models in this data, 50%+ more efficient room air conditioners cost $72 to $296 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $113.
Do 50%+ more efficient room air conditioners cost more or less than the average room air conditioner?: The median model here runs $113 a year, 12% more than the $100 median across all certified room air conditioners.
What's the cheapest model among 50%+ more efficient room air conditioners?: The K�hl KCVS08B10B costs about $72 a year at the U.S. average rate (384 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.

All certified models

Other efficiency facets

Questions, answered with the data

Keep digging