WattCost

Data through June 2026

Refrigerators · 26 certified models

Sub-Zero

This data covers 26 certified Sub-Zero — annual running costs span $29 to $137 at national-average rates (median $63; the whole-category median is $63).

All certified models

Sub-Zero, ranked by certified annual kWh
#ModelkWh/yr$/yr (US avg)
1Sub-Zero DEU2450R/ADAmost efficient159$29
2Sub-Zero DEU2450Rmost efficient168$31
3Sub-Zero DEU2450ROmost efficient168$31
4Sub-Zero DEU1550Bmost efficient183$34
5Sub-Zero ID-24R213$39
6Sub-Zero DEU2450B*/ADA215$39
7Sub-Zero ID-27R217$40
8Sub-Zero ID-30R221$41
9Sub-Zero ID-36R230$42
10Sub-Zero DEU2450B243$45
11Sub-Zero DEC2450R302$55
12Sub-Zero DET3050R324$59
13Sub-Zero DEC3050R332$61
14Sub-Zero DET3650R353$65
15Sub-Zero DEC3650R362$66
16Sub-Zero CL3650R**/S370$68
17Sub-Zero ID-30C374$69
18Sub-Zero DEU2450CI408$75
19Sub-Zero DEC1850FI455$83
20Sub-Zero ID-30CI458$84
21Sub-Zero DET3050CI550$101
22Sub-Zero CL3050U**/S557$102
23Sub-Zero DET3650CI593$109
24Sub-Zero CL3650U**/S596$109
25Sub-Zero CL4250UFD**/S637$117
26Sub-Zero CL4850S/S746$137

Other brand facets

Questions, answered with the data

How much does it cost to run Sub-Zero refrigerators?
Among 26 certified models in this data, Sub-Zero refrigerators cost $29 to $137 a year to run at the U.S. average electricity rate (18.3¢/kWh) — a median of $63.
Do Sub-Zero refrigerators cost more or less than the average refrigerator?
The median model here runs $63 a year, 0% less than the $63 median across all certified refrigerators.
What's the cheapest model among Sub-Zero refrigerators?
The Sub-Zero DEU2450R/ADA costs about $29 a year at the U.S. average rate (159 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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