WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Sub-Zero CL4250UFD**/S

The Sub-Zero CL4250UFD**/S never switches off, and its certified 637 kWh a year works out to about $117 on a U.S.-average electric bill — roughly $9.74 a month for an average continuous draw of 73 watts. That's close to the middle of the certified pack — about 13% above the median bottom-freezer refrigerator, ranked 1093 of 1478. Where you live moves the bill from $84 a year in Nevada to $336 in Hawaii.

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

Dimensions 84" H × 42" W

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

$117/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$9.74
Per day
32¢
Certified use
637 kWh/yr
Configuration
Bottom Freezer
Total capacity
24.7 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
No
42 kWh805 kWh
Where the Sub-Zero CL4250UFD**/S (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Sub-Zero CL4250UFD**/S: 637 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$104
Alaska28.2¢$180
Arizona15.2¢$97
Arkansas14.1¢$90
California34.7¢$221
Colorado17.1¢$109
Connecticut24.3¢$155
Delaware19.3¢$123
District of Columbia24.4¢$155
Florida15.1¢$96
Georgia16.4¢$104
Hawaiipriciest52.7¢$336
Idaho14.4¢$92
Illinois19.9¢$127
Indiana17.5¢$112
Iowa15.9¢$101
Kansas15.7¢$100
Kentucky14.3¢$91
Louisiana13.5¢$86
Maine29.6¢$188
Maryland21.8¢$139
Massachusetts29.6¢$189
Michigan23.0¢$146
Minnesota17.5¢$112
Mississippi14.9¢$95
Missouri16.2¢$103
Montana15.1¢$96
Nebraska13.3¢$84
Nevadacheapest13.1¢$84
New Hampshire27.0¢$172
New Jersey24.9¢$159
New Mexico15.1¢$96
New York29.5¢$188
North Carolina14.7¢$94
North Dakota14.1¢$90
Ohio19.2¢$122
Oklahoma14.3¢$91
Oregon16.3¢$104
Pennsylvania21.7¢$138
Rhode Island29.2¢$186
South Carolina15.6¢$99
South Dakota15.4¢$98
Tennessee14.1¢$90
Texas15.9¢$102
Utah13.4¢$85
Vermont24.4¢$156
Virginia17.2¢$110
Washington14.9¢$95
West Virginia15.4¢$98
Wisconsin19.6¢$125
Wyoming15.2¢$97

Certified models closest in efficiency

bottom-freezer refrigerators within reach of 637 kWh/yr
ModelkWh/yr$/yr (US avg)
Samsung RF70H25KE637$117
Cafe CHE23DM*W638$117
GE Profile PHD23BYW638$117
Dacor DRF36C500635$116
Samsung RF23B7671635$116
Dacor DRF36C700634$116

Run your own numbers

Your rate, your numbers

Per day
32¢
Per month
$9.74
Per year
$117

637 kWh/yr × 18.3¢/kWh = $117/yr

Prefilled with this model's certified 637 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 CL4250UFD**/S use?
ENERGY STAR certifies the Sub-Zero CL4250UFD**/S at 637 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 CL4250UFD**/S cost to run per month?
About $9.74 a month at the U.S. average residential rate (18.3¢/kWh) — 32¢ a day, or $117 a year. Your state's rate moves this up or down; see the table above.
Is the Sub-Zero CL4250UFD**/S energy efficient?
It uses 13% more electricity than the median certified bottom-freezer refrigerator.
What does the Sub-Zero CL4250UFD**/S cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $84 a year in Nevada (13.1¢/kWh) and $336 in Hawaii (52.7¢/kWh).
How many watts does the Sub-Zero CL4250UFD**/S draw on average?
Spread over a year of continuous operation, 637 kWh works out to an average draw of about 73 watts — like leaving a 73-watt bulb on 24/7.

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