WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Sub-Zero DEC2450R

Running around the clock, the Sub-Zero DEC2450R uses a certified 302 kWh per year — about $55 at the U.S. average rate, or $4.62 a month, the equivalent of a steady 34-watt draw. Efficiency-wise it's unremarkable in a good way: within 5% of the median certified freezerless-and-single-door refrigerator (rank 174 of 269). Where you live moves the bill from $40 a year in Nevada to $159 in Hawaii.

Uses 10% less energy than the U.S. federal minimum

Dimensions 84" H × 24" W

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

$55/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$4.62
Per day
15¢
Certified use
302 kWh/yr
Configuration
Freezerless and Single Door
Total capacity
13.3 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the Sub-Zero DEC2450R (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Sub-Zero DEC2450R: 302 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$50
Alaska28.2¢$85
Arizona15.2¢$46
Arkansas14.1¢$43
California34.7¢$105
Colorado17.1¢$52
Connecticut24.3¢$73
Delaware19.3¢$58
District of Columbia24.4¢$74
Florida15.1¢$46
Georgia16.4¢$49
Hawaiipriciest52.7¢$159
Idaho14.4¢$43
Illinois19.9¢$60
Indiana17.5¢$53
Iowa15.9¢$48
Kansas15.7¢$47
Kentucky14.3¢$43
Louisiana13.5¢$41
Maine29.6¢$89
Maryland21.8¢$66
Massachusetts29.6¢$89
Michigan23.0¢$69
Minnesota17.5¢$53
Mississippi14.9¢$45
Missouri16.2¢$49
Montana15.1¢$46
Nebraska13.3¢$40
Nevadacheapest13.1¢$40
New Hampshire27.0¢$82
New Jersey24.9¢$75
New Mexico15.1¢$45
New York29.5¢$89
North Carolina14.7¢$45
North Dakota14.1¢$43
Ohio19.2¢$58
Oklahoma14.3¢$43
Oregon16.3¢$49
Pennsylvania21.7¢$66
Rhode Island29.2¢$88
South Carolina15.6¢$47
South Dakota15.4¢$46
Tennessee14.1¢$42
Texas15.9¢$48
Utah13.4¢$40
Vermont24.4¢$74
Virginia17.2¢$52
Washington14.9¢$45
West Virginia15.4¢$47
Wisconsin19.6¢$59
Wyoming15.2¢$46

Certified models closest in efficiency

freezerless-and-single-door refrigerators within reach of 302 kWh/yr
ModelkWh/yr$/yr (US avg)
Gaggenau RVC467790302$55
Monogram ZIR241NBR301$55
Monogram ZIR241NPN301$55
Monogram ZIR241NPP301$55
Jenn-Air ALOVE24RRC0300$55
Jenn-Air JBRF*24IGX300$55

Run your own numbers

Your rate, your numbers

Per day
15¢
Per month
$4.62
Per year
$55

302 kWh/yr × 18.3¢/kWh = $55/yr

Prefilled with this model's certified 302 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 DEC2450R use?
ENERGY STAR certifies the Sub-Zero DEC2450R at 302 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 DEC2450R cost to run per month?
About $4.62 a month at the U.S. average residential rate (18.3¢/kWh) — 15¢ a day, or $55 a year. Your state's rate moves this up or down; see the table above.
Is the Sub-Zero DEC2450R energy efficient?
It uses 5% more electricity than the median certified freezerless-and-single-door refrigerator.
What does the Sub-Zero DEC2450R cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $40 a year in Nevada (13.1¢/kWh) and $159 in Hawaii (52.7¢/kWh).
How many watts does the Sub-Zero DEC2450R draw on average?
Spread over a year of continuous operation, 302 kWh works out to an average draw of about 34 watts — like leaving a 34-watt bulb on 24/7.

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