WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Sub-Zero CL3650R**/S

Running around the clock, the Sub-Zero CL3650R**/S uses a certified 370 kWh per year — about $68 at the U.S. average rate, or $5.65 a month, the equivalent of a steady 42-watt draw. Even among certified models it's on the thirsty end: 28% more electricity than the median freezerless-and-single-door refrigerator, ranked 269 of 269. Where you live moves the bill from $49 a year in Nevada to $195 in Hawaii.

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

$68/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$5.65
Per day
19¢
Certified use
370 kWh/yr
Configuration
Freezerless and Single Door
Total capacity
22.8 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the Sub-Zero CL3650R**/S (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Sub-Zero CL3650R**/S: 370 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$61
Alaska28.2¢$104
Arizona15.2¢$56
Arkansas14.1¢$52
California34.7¢$129
Colorado17.1¢$63
Connecticut24.3¢$90
Delaware19.3¢$71
District of Columbia24.4¢$90
Florida15.1¢$56
Georgia16.4¢$61
Hawaiipriciest52.7¢$195
Idaho14.4¢$53
Illinois19.9¢$74
Indiana17.5¢$65
Iowa15.9¢$59
Kansas15.7¢$58
Kentucky14.3¢$53
Louisiana13.5¢$50
Maine29.6¢$109
Maryland21.8¢$81
Massachusetts29.6¢$110
Michigan23.0¢$85
Minnesota17.5¢$65
Mississippi14.9¢$55
Missouri16.2¢$60
Montana15.1¢$56
Nebraska13.3¢$49
Nevadacheapest13.1¢$49
New Hampshire27.0¢$100
New Jersey24.9¢$92
New Mexico15.1¢$56
New York29.5¢$109
North Carolina14.7¢$55
North Dakota14.1¢$52
Ohio19.2¢$71
Oklahoma14.3¢$53
Oregon16.3¢$60
Pennsylvania21.7¢$80
Rhode Island29.2¢$108
South Carolina15.6¢$58
South Dakota15.4¢$57
Tennessee14.1¢$52
Texas15.9¢$59
Utah13.4¢$49
Vermont24.4¢$90
Virginia17.2¢$64
Washington14.9¢$55
West Virginia15.4¢$57
Wisconsin19.6¢$72
Wyoming15.2¢$56

Certified models closest in efficiency

freezerless-and-single-door refrigerators within reach of 370 kWh/yr
ModelkWh/yr$/yr (US avg)
Monogram ZIR360NN364$67
Monogram ZIR360NP364$67
Monogram ZIRS360NN364$67
Monogram ZIRS360NP364$67
Gaggenau RVC497790362$66
Sub-Zero DEC3650R362$66

Run your own numbers

Your rate, your numbers

Per day
19¢
Per month
$5.65
Per year
$68

370 kWh/yr × 18.3¢/kWh = $68/yr

Prefilled with this model's certified 370 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 CL3650R**/S use?
ENERGY STAR certifies the Sub-Zero CL3650R**/S at 370 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 CL3650R**/S cost to run per month?
About $5.65 a month at the U.S. average residential rate (18.3¢/kWh) — 19¢ a day, or $68 a year. Your state's rate moves this up or down; see the table above.
Is the Sub-Zero CL3650R**/S energy efficient?
It uses 28% 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 CL3650R**/S cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $49 a year in Nevada (13.1¢/kWh) and $195 in Hawaii (52.7¢/kWh).
How many watts does the Sub-Zero CL3650R**/S draw on average?
Spread over a year of continuous operation, 370 kWh works out to an average draw of about 42 watts — like leaving a 42-watt bulb on 24/7.

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