WattCost

Data through April 2026

Running cost · Refrigerators · ENERGY STAR certified

Sub-Zero DEU2450R

The Sub-Zero DEU2450R never switches off, and its certified 168 kWh a year works out to about $32 on a U.S.-average electric bill — roughly $2.64 a month for an average continuous draw of 19 watts. Only a handful of certified compact refrigerators do better: it ranks 28 of 1589 and undercuts the median by 32%. Where you live moves the bill from $21 a year in North Dakota to $78 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria.

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

$32/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$2.64
Per day
9¢
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 DEU2450R (▮) sits among all 4,229 certified refrigerators, by annual kWh

What it costs in every state

Sub-Zero DEU2450R: 168 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$29
Alaska27.4¢$46
Arizona15.5¢$26
Arkansas14.2¢$24
California35.3¢$59
Colorado16.5¢$28
Connecticut32.2¢$54
Delaware18.8¢$32
District of Columbia25.4¢$43
Florida15.4¢$26
Georgia15.4¢$26
Hawaiipriciest46.6¢$78
Idaho12.7¢$21
Illinois20.5¢$34
Indiana17.9¢$30
Iowa13.9¢$23
Kansas15.8¢$27
Kentucky15.0¢$25
Louisiana14.4¢$24
Maine28.4¢$48
Maryland22.1¢$37
Massachusetts29.4¢$49
Michigan21.4¢$36
Minnesota16.4¢$28
Mississippi16.8¢$28
Missouri14.0¢$24
Montana13.9¢$23
Nebraska13.3¢$22
Nevada14.3¢$24
New Hampshire27.2¢$46
New Jersey23.5¢$40
New Mexico15.2¢$25
New York29.4¢$49
North Carolina16.3¢$27
North Dakotacheapest12.3¢$21
Ohio19.5¢$33
Oklahoma13.3¢$22
Oregon15.8¢$27
Pennsylvania21.5¢$36
Rhode Island28.3¢$48
South Carolina17.1¢$29
South Dakota14.5¢$24
Tennessee14.9¢$25
Texas17.0¢$29
Utah13.3¢$22
Vermont24.6¢$41
Virginia17.4¢$29
Washington14.4¢$24
West Virginia16.1¢$27
Wisconsin19.2¢$32
Wyoming14.7¢$25

Certified models closest in efficiency

compact refrigerators within reach of 168 kWh/yr
ModelkWh/yr$/yr (US avg)
Sub-Zero DEU2450ROmost efficient168$32
Arctic King AU83ETWBR1RCMmost efficient167$31
Avanti RMRS31X**-ISmost efficient169$32
Avanti RMRS31X6BL-ISmost efficient169$32
DOMETIC C60G1most efficient170$32
DOMETIC C60G2most efficient170$32

Run your own numbers

Your rate, your numbers

Per day
9¢
Per month
$2.64
Per year
$32

168 kWh/yr × 18.8¢/kWh = $32/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 DEU2450R use?
ENERGY STAR certifies the Sub-Zero DEU2450R 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 DEU2450R cost to run per month?
About $2.64 a month at the U.S. average residential rate (18.8¢/kWh) — 9¢ a day, or $32 a year. Your state's rate moves this up or down; see the table above.
Is the Sub-Zero DEU2450R 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 DEU2450R cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $21 a year in North Dakota (12.3¢/kWh) and $78 in Hawaii (46.6¢/kWh).
How many watts does the Sub-Zero DEU2450R 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.

Keep digging