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

Among 36 certified models in this data, 50%+ more efficient room air conditioners cost $70 to $288 a year to run at the U.S. average electricity rate (18.3¢/kWh) — a median of $120.

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

The median model here runs $120 a year, 23% more than the $98 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 $70 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 June 2026

Room Air Conditioners · 36 certified models

50%+ More Efficient Room Air Conditioners

Among all certified room air conditioners, 36 clear the "50%+ More Efficient Room Air Conditioners" threshold — running $70 to $288 a year at national-average rates (median $120, category-wide median $98).

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	$70
2	Midea MAW08HV1KWT-Amost efficient	397	$73
3	Midea MWAUQB-08HRFN8-BCN11most efficient	397	$73
4	Midea MAH09B1AGRmost efficient	405	$74
5	Midea MAH09H1AGRmost efficient	405	$74
6	Midea MAH09N1AGRmost efficient	405	$74
7	Midea MAH09S1AGRmost efficient	405	$74
8	Midea MAH09W1AGRmost efficient	405	$74
9	Midea MWCUPWHP-09HEFN8-BCL1most efficient	405	$74
10	Midea MWCUPWHP-09HEFN8-BCL1Nmost efficient	405	$74
11	Gradient CCHP11most efficient	415	$76
12	GREE GJH09BW-A6DRNL1Amost efficient	462	$85
13	Kinghome KHWA09INmost efficient	462	$85
14	K�hl+ KHVS10B11Bmost efficient	530	$97
15	K�hl KCVS12B30Bmost efficient	567	$104
16	K�hl+ KHVS12B33Bmost efficient	598	$110
17	Friedrich KCVM14B10Bmost efficient	653	$120
18	GE PWJV14Wmost efficient	656	$120
19	Midea MWEUWA-14CRFN8-BCP0most efficient	656	$120
20	Midea MWFUWA-14CRFN8-BCP0most efficient	656	$120
21	TCL T14WV9Smost efficient	656	$120
22	TCL T14WV9SBmost efficient	656	$120
23	TCL W14WC72most efficient	656	$120
24	TCL W14WC72-Bmost efficient	656	$120
25	K�hl KCVS16B30Bmost efficient	722	$132
26	Brothers 102387most efficient	844	$155
27	Midea MAW18RV1KWTmost efficient	844	$155
28	Midea MAW18S2KWT-Amost efficient	844	$155
29	Midea MWCUWH-18CRFN8-MCP0most efficient	844	$155
30	Seasons SW18V2most efficient	844	$155
31	K�hl KCVM18B30Bmost efficient	1,074	$197
32	Hisense AW2223TW3Wmost efficient	1,100	$202
33	LG LW2422IVSM(208V)most efficient	1,216	$223
34	LG LW2422IVSM(230V)most efficient	1,216	$223
35	K�hl+ KHVL28B35Bmost efficient	1,495	$274
36	K�hl KCVL28B30Bmost efficient	1,571	$288

Other efficiency facets

Questions, answered with the data

How much does it cost to run 50%+ more efficient room air conditioners?: Among 36 certified models in this data, 50%+ more efficient room air conditioners cost $70 to $288 a year to run at the U.S. average electricity rate (18.3¢/kWh) — a median of $120.
Do 50%+ more efficient room air conditioners cost more or less than the average room air conditioner?: The median model here runs $120 a year, 23% more than the $98 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 $70 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