WattCost

Data through April 2026

Refrigerators · 823 certified models

Most Efficient Refrigerators

823 of 4,229 certified refrigerators meet the bar for "Most Efficient Refrigerators." At the U.S. average electricity rate they cost $20 to $104 a year to run — median $68, versus $65 across the whole category.

The 50 most efficient (of 823)

Most Efficient Refrigerators, ranked by certified annual kWh
#ModelkWh/yr$/yr (US avg)
1DOMETIC C40S1most efficient106$20
2DOMETIC C40S2most efficient106$20
3Fisher & Paykel RS2435SBmost efficient106$20
4Liebherr UR3750most efficient115$22
5DOMETIC C60SFS CAREmost efficient124$23
6Liebherr UR3650most efficient125$24
7Liebherr URP3653most efficient125$24
8DOMETIC C60SBI CAREmost efficient126$24
9Fisher & Paykel RS2435SB*Tmost efficient137$26
10DOMETIC C60S1most efficient145$27
11DOMETIC C60S2most efficient145$27
12Fisher & Paykel RB36Smost efficient150$28
13Frigidaire EFR107-B-WHITEmost efficient158$30
14Frigidaire EFR107-WHITEmost efficient158$30
15Frigidaire EFR115-B-BLACKmost efficient158$30
16Frigidaire EFR115-B-REDmost efficient158$30
17Frigidaire EFR115-C-RED-COMmost efficient158$30
18Frigidaire EFR177-B-BLUEmost efficient158$30
19Frigidaire EFR177-B-REDmost efficient158$30
20Frigidaire EFR180most efficient158$30
21RCA EFR180most efficient158$30
22RCA RFR115-C-BLACKmost efficient158$30
23RCA RFR176-B-REDmost efficient158$30
24Sub-Zero DEU2450R/ADAmost efficient159$30
25DOMETIC C40G1most efficient162$31
26DOMETIC C40G2most efficient162$31
27Arctic King AU83ETWBR1RCMmost efficient167$31
28Sub-Zero DEU2450Rmost efficient168$32
29Sub-Zero DEU2450ROmost efficient168$32
30Avanti RMRS31X**-ISmost efficient169$32
31Avanti RMRS31X6BL-ISmost efficient169$32
32DOMETIC C60G1most efficient170$32
33DOMETIC C60G2most efficient170$32
34Frigidaire FFCS0562AWmost efficient170$32
35Zephyr PRRFD24C2APmost efficient179$34
36Zephyr PRRFD24C2ASmost efficient179$34
37Zephyr PRRFD24C2AS-ODmost efficient179$34
38Frigidaire FFCS0762AWmost efficient180$34
39Liebherr UBC3760most efficient180$34
40Miele Dreams Cool Mmost efficient180$34
41Sub-Zero DEU1550Bmost efficient183$34
42Marvel MA24RA1Smost efficient185$35
43DOMETIC DM50C Dmost efficient186$35
44Hisense FV06C7ASEmost efficient186$35
45Danby DAG016A5BDHmost efficient190$36
46Marvel MPBV415-IS31Amost efficient191$36
47Marvel MPBV415-SS31Amost efficient191$36
48Marvel MPWC415-IS31Amost efficient191$36
49Marvel MPWC415-SS31Amost efficient191$36
50Lynx LN15REFmost efficient192$36

Other efficiency facets

Questions, answered with the data

How much does it cost to run most efficient refrigerators?
Among 823 certified models in this data, most efficient refrigerators cost $20 to $104 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $68.
Do most efficient refrigerators cost more or less than the average refrigerator?
The median model here runs $68 a year, 5% more than the $65 median across all certified refrigerators.
What's the cheapest model among most efficient refrigerators?
The DOMETIC C40S1 costs about $20 a year at the U.S. average rate (106 kWh/yr) — the lowest certified figure in this group.
What does the certified annual-kWh figure assume for refrigerators?
The certified annual kWh comes from the DOE test procedure, which measures continuous 24/7 operation at standardized temperatures — refrigerators never get a day off.

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