WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Sub-Zero DET3050R

The Sub-Zero DET3050R never switches off, and its certified 324 kWh a year works out to about $59 on a U.S.-average electric bill — roughly $4.95 a month for an average continuous draw of 37 watts. Even among certified models it's on the thirsty end: 13% more electricity than the median freezerless-and-single-door refrigerator, ranked 226 of 269. Where you live moves the bill from $42 a year in Nevada to $171 in Hawaii.

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

Dimensions 84" H × 30" W

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

$59/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$4.95
Per day
16¢
Certified use
324 kWh/yr
Configuration
Freezerless and Single Door
Total capacity
16.4 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the Sub-Zero DET3050R (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Sub-Zero DET3050R: 324 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$53
Alaska28.2¢$91
Arizona15.2¢$49
Arkansas14.1¢$46
California34.7¢$113
Colorado17.1¢$56
Connecticut24.3¢$79
Delaware19.3¢$62
District of Columbia24.4¢$79
Florida15.1¢$49
Georgia16.4¢$53
Hawaiipriciest52.7¢$171
Idaho14.4¢$47
Illinois19.9¢$64
Indiana17.5¢$57
Iowa15.9¢$52
Kansas15.7¢$51
Kentucky14.3¢$46
Louisiana13.5¢$44
Maine29.6¢$96
Maryland21.8¢$71
Massachusetts29.6¢$96
Michigan23.0¢$74
Minnesota17.5¢$57
Mississippi14.9¢$48
Missouri16.2¢$53
Montana15.1¢$49
Nebraska13.3¢$43
Nevadacheapest13.1¢$42
New Hampshire27.0¢$88
New Jersey24.9¢$81
New Mexico15.1¢$49
New York29.5¢$96
North Carolina14.7¢$48
North Dakota14.1¢$46
Ohio19.2¢$62
Oklahoma14.3¢$46
Oregon16.3¢$53
Pennsylvania21.7¢$70
Rhode Island29.2¢$95
South Carolina15.6¢$50
South Dakota15.4¢$50
Tennessee14.1¢$46
Texas15.9¢$52
Utah13.4¢$43
Vermont24.4¢$79
Virginia17.2¢$56
Washington14.9¢$48
West Virginia15.4¢$50
Wisconsin19.6¢$63
Wyoming15.2¢$49

Certified models closest in efficiency

freezerless-and-single-door refrigerators within reach of 324 kWh/yr
ModelkWh/yr$/yr (US avg)
Bertazzoni REF30RCBPNV325$60
Elica EC30SRN16IPR325$60
FORTE F17UFESC450PR325$60
FULGOR MILANO FM4CR30FBI325$60
HALLMAN HRBIAR30PR325$60
KOOLMORE KM-PRC-R30325$60

Run your own numbers

Your rate, your numbers

Per day
16¢
Per month
$4.95
Per year
$59

324 kWh/yr × 18.3¢/kWh = $59/yr

Prefilled with this model's certified 324 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 DET3050R use?
ENERGY STAR certifies the Sub-Zero DET3050R at 324 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 DET3050R cost to run per month?
About $4.95 a month at the U.S. average residential rate (18.3¢/kWh) — 16¢ a day, or $59 a year. Your state's rate moves this up or down; see the table above.
Is the Sub-Zero DET3050R energy efficient?
It uses 13% 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 DET3050R cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $42 a year in Nevada (13.1¢/kWh) and $171 in Hawaii (52.7¢/kWh).
How many watts does the Sub-Zero DET3050R draw on average?
Spread over a year of continuous operation, 324 kWh works out to an average draw of about 37 watts — like leaving a 37-watt bulb on 24/7.

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