Room air conditioners: running cost of 589 models

The average model uses 584 kWh a year, which costs $123 a year at 21.0¢/kWh.

Most efficient models

Rank	Model	kWh/year	Cost/year
1	BLACK+DECKER BDM05C	260	$55
2	Brothers 102372	260	$55
3	Frigidaire FHWC055TF1	260	$55
4	Frigidaire FHWC056TF1	260	$55
5	Midea MAW05R1KWT-B	260	$55
6	Midea MAW05R1VWBL-T	260	$55
7	Midea MAW05R1VWWT-T	260	$55
8	Midea MAW05S1KWT-A	260	$55
9	Midea MWEUWA-05CRFN8-BCN4	260	$55
10	Noma 143-1378-6	260	$55
11	Perfect aire 1PACV5000	260	$55
12	Vissani VAW05V1KWT	260	$55
13	TCL T05WV9M	274	$58
14	TCL T05WV9MB	274	$58
15	TCL T05WV9R	274	$58
16	TCL T05WV9RB	274	$58
17	TCL W5WC72	274	$58
18	TCL W5WC72-B	274	$58
19	TCL W5WC72M	274	$58
20	TCL W5WC72M-B	274	$58
21	Midea MAW06S1KWT-A	281	$59
22	Midea MAW06V1KYWT-S	281	$59
23	Whirlpool WHAW050EX	286	$60
24	LG LW6023IVSM	290	$61
25	Midea MAW06U1QWT	298	$63
26	Midea MAW06V1QWBL-T	298	$63
27	Midea MAW06V1QWT	298	$63
28	Midea MAW06V1UBL	298	$63
29	Midea MAW06V1UWT	298	$63
30	Midea MWAUQB-06CRFN8-BCN11	298	$63
31	ZAFRO 54091EWA0-6K-ZAZ	308	$65
32	BLACK+DECKER BDM06C	329	$69
33	Frigidaire FHWC065TF1	329	$69
34	Frigidaire FHWC066TF1	329	$69
35	Hisense WCT06W25A	329	$69
36	Midea MAW06R1AWK	329	$69
37	Midea MAW06S1VWBL-T	329	$69
38	Midea MAW06S1VWWT-T	329	$69
39	Midea MAW06SV1KTW-T	329	$69
40	Midea MWEUWA-06CRFN8-BCM7	329	$69

Source: ENERGY STAR (U.S. EPA) · 21.0¢/kWh (August 2026) · Methodology