WattCost

Data through April 2026

Running cost · Refrigerators · ENERGY STAR certified

Sub-Zero DEU2450CI

The Sub-Zero DEU2450CI never switches off, and its certified 408 kWh a year works out to about $77 on a U.S.-average electric bill — roughly $6.40 a month for an average continuous draw of 47 watts. It sits near the bottom of the certified table — using 66% more than the median compact refrigerator (rank 1578 of 1589) — so the state you live in matters more than usual. The same unit costs $50 a year in North Dakota but $190 in Hawaii — electricity rates, not the appliance, make the difference.

Uses 21% less energy than the U.S. federal minimum

Dimensions 34" H × 24" W

Estimated annual running cost · U.S. average rate 18.8¢/kWh

$77/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$6.40
Per day
21¢
Certified use
408 kWh/yr
Configuration
Compact Refrigerator
Total capacity
4.8 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
No
42 kWh805 kWh
Where the Sub-Zero DEU2450CI (▮) sits among all 4,229 certified refrigerators, by annual kWh

What it costs in every state

Sub-Zero DEU2450CI: 408 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$71
Alaska27.4¢$112
Arizona15.5¢$63
Arkansas14.2¢$58
California35.3¢$144
Colorado16.5¢$67
Connecticut32.2¢$132
Delaware18.8¢$77
District of Columbia25.4¢$104
Florida15.4¢$63
Georgia15.4¢$63
Hawaiipriciest46.6¢$190
Idaho12.7¢$52
Illinois20.5¢$84
Indiana17.9¢$73
Iowa13.9¢$57
Kansas15.8¢$64
Kentucky15.0¢$61
Louisiana14.4¢$59
Maine28.4¢$116
Maryland22.1¢$90
Massachusetts29.4¢$120
Michigan21.4¢$87
Minnesota16.4¢$67
Mississippi16.8¢$68
Missouri14.0¢$57
Montana13.9¢$57
Nebraska13.3¢$54
Nevada14.3¢$58
New Hampshire27.2¢$111
New Jersey23.5¢$96
New Mexico15.2¢$62
New York29.4¢$120
North Carolina16.3¢$66
North Dakotacheapest12.3¢$50
Ohio19.5¢$80
Oklahoma13.3¢$54
Oregon15.8¢$64
Pennsylvania21.5¢$88
Rhode Island28.3¢$115
South Carolina17.1¢$70
South Dakota14.5¢$59
Tennessee14.9¢$61
Texas17.0¢$69
Utah13.3¢$54
Vermont24.6¢$100
Virginia17.4¢$71
Washington14.4¢$59
West Virginia16.1¢$66
Wisconsin19.2¢$78
Wyoming14.7¢$60

Certified models closest in efficiency

compact refrigerators within reach of 408 kWh/yr
ModelkWh/yr$/yr (US avg)
Avanti FF7B0W393$74
Avanti FF7B3S393$74
upstreman TM71393$74
Avanti FF7B391$74
Danby DFF070B2BSLDB-6391$74
Premium Levella PRN7105HW391$74

Run your own numbers

Your rate, your numbers

Per day
21¢
Per month
$6.40
Per year
$77

408 kWh/yr × 18.8¢/kWh = $77/yr

Prefilled with this model's certified 408 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 DEU2450CI use?
ENERGY STAR certifies the Sub-Zero DEU2450CI at 408 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 DEU2450CI cost to run per month?
About $6.40 a month at the U.S. average residential rate (18.8¢/kWh) — 21¢ a day, or $77 a year. Your state's rate moves this up or down; see the table above.
Is the Sub-Zero DEU2450CI energy efficient?
It uses 66% more electricity than the median certified compact refrigerator, which puts it among the least efficient certified models.
What does the Sub-Zero DEU2450CI cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $50 a year in North Dakota (12.3¢/kWh) and $190 in Hawaii (46.6¢/kWh).
How many watts does the Sub-Zero DEU2450CI draw on average?
Spread over a year of continuous operation, 408 kWh works out to an average draw of about 47 watts — like leaving a 47-watt bulb on 24/7.

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