WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Sub-Zero DET3050CI

The Sub-Zero DET3050CI never switches off, and its certified 550 kWh a year works out to about $101 on a U.S.-average electric bill — roughly $8.41 a month for an average continuous draw of 63 watts. That's close to the middle of the certified pack — about 2% under the median bottom-freezer refrigerator, ranked 674 of 1478. Where you live moves the bill from $72 a year in Nevada to $290 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

$101/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$8.41
Per day
28¢
Certified use
550 kWh/yr
Configuration
Bottom Freezer
Total capacity
15.6 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
No
42 kWh805 kWh
Where the Sub-Zero DET3050CI (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Sub-Zero DET3050CI: 550 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$90
Alaska28.2¢$155
Arizona15.2¢$83
Arkansas14.1¢$78
California34.7¢$191
Colorado17.1¢$94
Connecticut24.3¢$134
Delaware19.3¢$106
District of Columbia24.4¢$134
Florida15.1¢$83
Georgia16.4¢$90
Hawaiipriciest52.7¢$290
Idaho14.4¢$79
Illinois19.9¢$109
Indiana17.5¢$96
Iowa15.9¢$88
Kansas15.7¢$86
Kentucky14.3¢$78
Louisiana13.5¢$74
Maine29.6¢$163
Maryland21.8¢$120
Massachusetts29.6¢$163
Michigan23.0¢$126
Minnesota17.5¢$96
Mississippi14.9¢$82
Missouri16.2¢$89
Montana15.1¢$83
Nebraska13.3¢$73
Nevadacheapest13.1¢$72
New Hampshire27.0¢$149
New Jersey24.9¢$137
New Mexico15.1¢$83
New York29.5¢$162
North Carolina14.7¢$81
North Dakota14.1¢$78
Ohio19.2¢$106
Oklahoma14.3¢$79
Oregon16.3¢$90
Pennsylvania21.7¢$120
Rhode Island29.2¢$161
South Carolina15.6¢$86
South Dakota15.4¢$84
Tennessee14.1¢$77
Texas15.9¢$88
Utah13.4¢$74
Vermont24.4¢$134
Virginia17.2¢$95
Washington14.9¢$82
West Virginia15.4¢$85
Wisconsin19.6¢$108
Wyoming15.2¢$84

Certified models closest in efficiency

bottom-freezer refrigerators within reach of 550 kWh/yr
ModelkWh/yr$/yr (US avg)
ARTT ATBM19550$101
Bertazzoni REF36BMBIPLT550$101
Bertazzoni REF36BMBIPRT550$101
Bertazzoni REF36BMBIXLT550$101
Bertazzoni REF36BMBIXRT550$101
Criterion CBMR187M4550$101

Run your own numbers

Your rate, your numbers

Per day
28¢
Per month
$8.41
Per year
$101

550 kWh/yr × 18.3¢/kWh = $101/yr

Prefilled with this model's certified 550 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 DET3050CI use?
ENERGY STAR certifies the Sub-Zero DET3050CI at 550 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 DET3050CI cost to run per month?
About $8.41 a month at the U.S. average residential rate (18.3¢/kWh) — 28¢ a day, or $101 a year. Your state's rate moves this up or down; see the table above.
Is the Sub-Zero DET3050CI energy efficient?
It uses 2% less electricity than the median certified bottom-freezer refrigerator.
What does the Sub-Zero DET3050CI cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $72 a year in Nevada (13.1¢/kWh) and $290 in Hawaii (52.7¢/kWh).
How many watts does the Sub-Zero DET3050CI draw on average?
Spread over a year of continuous operation, 550 kWh works out to an average draw of about 63 watts — like leaving a 63-watt bulb on 24/7.

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