WattCost

Data through April 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 $61 on a U.S.-average electric bill — roughly $5.08 a month for an average continuous draw of 37 watts. Even among certified models it's on the thirsty end: 12% more electricity than the median freezerless-and-single-door refrigerator, ranked 216 of 259. Where you live moves the bill from $40 a year in North Dakota to $151 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 18.8¢/kWh

$61/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$5.08
Per day
17¢
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 4,229 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
Alabama17.4¢$56
Alaska27.4¢$89
Arizona15.5¢$50
Arkansas14.2¢$46
California35.3¢$114
Colorado16.5¢$54
Connecticut32.2¢$104
Delaware18.8¢$61
District of Columbia25.4¢$82
Florida15.4¢$50
Georgia15.4¢$50
Hawaiipriciest46.6¢$151
Idaho12.7¢$41
Illinois20.5¢$66
Indiana17.9¢$58
Iowa13.9¢$45
Kansas15.8¢$51
Kentucky15.0¢$49
Louisiana14.4¢$47
Maine28.4¢$92
Maryland22.1¢$72
Massachusetts29.4¢$95
Michigan21.4¢$69
Minnesota16.4¢$53
Mississippi16.8¢$54
Missouri14.0¢$45
Montana13.9¢$45
Nebraska13.3¢$43
Nevada14.3¢$46
New Hampshire27.2¢$88
New Jersey23.5¢$76
New Mexico15.2¢$49
New York29.4¢$95
North Carolina16.3¢$53
North Dakotacheapest12.3¢$40
Ohio19.5¢$63
Oklahoma13.3¢$43
Oregon15.8¢$51
Pennsylvania21.5¢$70
Rhode Island28.3¢$92
South Carolina17.1¢$55
South Dakota14.5¢$47
Tennessee14.9¢$48
Texas17.0¢$55
Utah13.3¢$43
Vermont24.6¢$80
Virginia17.4¢$56
Washington14.4¢$47
West Virginia16.1¢$52
Wisconsin19.2¢$62
Wyoming14.7¢$48

Certified models closest in efficiency

freezerless-and-single-door refrigerators within reach of 324 kWh/yr
ModelkWh/yr$/yr (US avg)
Bertazzoni REF30RCBPNV325$61
Elica EC30SRN16IPR325$61
FORTE F17UFESC450PR325$61
FULGOR MILANO FM4CR30FBI325$61
HALLMAN HRBIAR30PR325$61
KOOLMORE KM-PRC-R30325$61

Run your own numbers

Your rate, your numbers

Per day
17¢
Per month
$5.08
Per year
$61

324 kWh/yr × 18.8¢/kWh = $61/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 $5.08 a month at the U.S. average residential rate (18.8¢/kWh) — 17¢ a day, or $61 a year. Your state's rate moves this up or down; see the table above.
Is the Sub-Zero DET3050R energy efficient?
It uses 12% 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 $40 a year in North Dakota (12.3¢/kWh) and $151 in Hawaii (46.6¢/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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