WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Sub-Zero DEU2450RO

Running around the clock, the Sub-Zero DEU2450RO uses a certified 168 kWh per year — about $31 at the U.S. average rate, or $2.57 a month, the equivalent of a steady 19-watt draw. That puts it in the most efficient tenth of every certified compact refrigerator — 32% less electricity than the median, ranked 29 of 1645. Where you live moves the bill from $22 a year in Nevada to $89 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria.

Uses 46% less energy than the U.S. federal minimum

Dimensions 34" H × 24" W

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

$31/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$2.57
Per day
8¢
Certified use
168 kWh/yr
Configuration
Compact Refrigerator
Total capacity
5.4 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the Sub-Zero DEU2450RO (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Sub-Zero DEU2450RO: 168 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$28
Alaska28.2¢$47
Arizona15.2¢$26
Arkansas14.1¢$24
California34.7¢$58
Colorado17.1¢$29
Connecticut24.3¢$41
Delaware19.3¢$32
District of Columbia24.4¢$41
Florida15.1¢$25
Georgia16.4¢$27
Hawaiipriciest52.7¢$89
Idaho14.4¢$24
Illinois19.9¢$33
Indiana17.5¢$29
Iowa15.9¢$27
Kansas15.7¢$26
Kentucky14.3¢$24
Louisiana13.5¢$23
Maine29.6¢$50
Maryland21.8¢$37
Massachusetts29.6¢$50
Michigan23.0¢$39
Minnesota17.5¢$29
Mississippi14.9¢$25
Missouri16.2¢$27
Montana15.1¢$25
Nebraska13.3¢$22
Nevadacheapest13.1¢$22
New Hampshire27.0¢$45
New Jersey24.9¢$42
New Mexico15.1¢$25
New York29.5¢$50
North Carolina14.7¢$25
North Dakota14.1¢$24
Ohio19.2¢$32
Oklahoma14.3¢$24
Oregon16.3¢$27
Pennsylvania21.7¢$37
Rhode Island29.2¢$49
South Carolina15.6¢$26
South Dakota15.4¢$26
Tennessee14.1¢$24
Texas15.9¢$27
Utah13.4¢$22
Vermont24.4¢$41
Virginia17.2¢$29
Washington14.9¢$25
West Virginia15.4¢$26
Wisconsin19.6¢$33
Wyoming15.2¢$26

Certified models closest in efficiency

compact refrigerators within reach of 168 kWh/yr
ModelkWh/yr$/yr (US avg)
Sub-Zero DEU2450Rmost efficient168$31
Arctic King AU83ETWBR1RCMmost efficient167$31
Avanti RMRS31X**-ISmost efficient169$31
Avanti RMRS31X6BL-ISmost efficient169$31
DOMETIC C60G1most efficient170$31
DOMETIC C60G2most efficient170$31

Run your own numbers

Your rate, your numbers

Per day
8¢
Per month
$2.57
Per year
$31

168 kWh/yr × 18.3¢/kWh = $31/yr

Prefilled with this model's certified 168 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 DEU2450RO use?
ENERGY STAR certifies the Sub-Zero DEU2450RO at 168 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 DEU2450RO cost to run per month?
About $2.57 a month at the U.S. average residential rate (18.3¢/kWh) — 8¢ a day, or $31 a year. Your state's rate moves this up or down; see the table above.
Is the Sub-Zero DEU2450RO energy efficient?
It uses 32% less electricity than the median certified compact refrigerator, placing it in the top 10% of certified models. It also meets ENERGY STAR's Most Efficient criteria.
What does the Sub-Zero DEU2450RO cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $22 a year in Nevada (13.1¢/kWh) and $89 in Hawaii (52.7¢/kWh).
How many watts does the Sub-Zero DEU2450RO draw on average?
Spread over a year of continuous operation, 168 kWh works out to an average draw of about 19 watts — like leaving a 19-watt bulb on 24/7.

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