WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Sub-Zero DEC3650R

Running around the clock, the Sub-Zero DEC3650R uses a certified 362 kWh per year — about $66 at the U.S. average rate, or $5.53 a month, the equivalent of a steady 41-watt draw. Even among certified models it's on the thirsty end: 26% more electricity than the median freezerless-and-single-door refrigerator, ranked 264 of 269. The same unit costs $47 a year in Nevada but $191 in Hawaii — electricity rates, not the appliance, make the difference.

Uses 10% less energy than the U.S. federal minimum

Dimensions 84" H × 36" W

Estimated annual running cost · U.S. average rate 18.3¢/kWh

$66/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$5.53
Per day
18¢
Certified use
362 kWh/yr
Configuration
Freezerless and Single Door
Total capacity
21.7 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the Sub-Zero DEC3650R (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Sub-Zero DEC3650R: 362 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$59
Alaska28.2¢$102
Arizona15.2¢$55
Arkansas14.1¢$51
California34.7¢$126
Colorado17.1¢$62
Connecticut24.3¢$88
Delaware19.3¢$70
District of Columbia24.4¢$88
Florida15.1¢$55
Georgia16.4¢$59
Hawaiipriciest52.7¢$191
Idaho14.4¢$52
Illinois19.9¢$72
Indiana17.5¢$63
Iowa15.9¢$58
Kansas15.7¢$57
Kentucky14.3¢$52
Louisiana13.5¢$49
Maine29.6¢$107
Maryland21.8¢$79
Massachusetts29.6¢$107
Michigan23.0¢$83
Minnesota17.5¢$63
Mississippi14.9¢$54
Missouri16.2¢$59
Montana15.1¢$55
Nebraska13.3¢$48
Nevadacheapest13.1¢$47
New Hampshire27.0¢$98
New Jersey24.9¢$90
New Mexico15.1¢$55
New York29.5¢$107
North Carolina14.7¢$53
North Dakota14.1¢$51
Ohio19.2¢$69
Oklahoma14.3¢$52
Oregon16.3¢$59
Pennsylvania21.7¢$79
Rhode Island29.2¢$106
South Carolina15.6¢$56
South Dakota15.4¢$56
Tennessee14.1¢$51
Texas15.9¢$58
Utah13.4¢$48
Vermont24.4¢$88
Virginia17.2¢$62
Washington14.9¢$54
West Virginia15.4¢$56
Wisconsin19.6¢$71
Wyoming15.2¢$55

Certified models closest in efficiency

freezerless-and-single-door refrigerators within reach of 362 kWh/yr
ModelkWh/yr$/yr (US avg)
Gaggenau RVC497790362$66
Jenn-Air JBRF*36IGX360$66
Monogram ZIR360NN364$67
Monogram ZIR360NP364$67
Monogram ZIRS360NN364$67
Monogram ZIRS360NP364$67

Run your own numbers

Your rate, your numbers

Per day
18¢
Per month
$5.53
Per year
$66

362 kWh/yr × 18.3¢/kWh = $66/yr

Prefilled with this model's certified 362 kWh/yr — adjust if your usage differs from the DOE test basis. 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.

Questions, answered with the data

How much electricity does the Sub-Zero DEC3650R use?
ENERGY STAR certifies the Sub-Zero DEC3650R at 362 kWh per year. 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.
How much does the Sub-Zero DEC3650R cost to run per month?
About $5.53 a month at the U.S. average residential rate (18.3¢/kWh) — 18¢ a day, or $66 a year. Your state's rate moves this up or down; see the table above.
Is the Sub-Zero DEC3650R energy efficient?
It uses 26% more electricity than the median certified freezerless-and-single-door refrigerator, which puts it among the least efficient certified models.
What does the Sub-Zero DEC3650R cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $47 a year in Nevada (13.1¢/kWh) and $191 in Hawaii (52.7¢/kWh).
How many watts does the Sub-Zero DEC3650R draw on average?
Spread over a year of continuous operation, 362 kWh works out to an average draw of about 41 watts — like leaving a 41-watt bulb on 24/7.

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