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Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Sub-Zero ID-30R

The Sub-Zero ID-30R never switches off, and its certified 221 kWh a year works out to about $41 on a U.S.-average electric bill — roughly $3.38 a month for an average continuous draw of 25 watts. Efficiency-wise it's unremarkable in a good way: within 10% of the median certified compact refrigerator (rank 578 of 1645). The same unit costs $29 a year in Nevada but $117 in Hawaii — electricity rates, not the appliance, make the difference.

Uses 28% less energy than the U.S. federal minimum

Dimensions 34.5" H × 30" W

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

$41/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$3.38
Per day
11¢
Certified use
221 kWh/yr
Configuration
Compact Refrigerator
Total capacity
5.3 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the Sub-Zero ID-30R (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Sub-Zero ID-30R: 221 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$36
Alaska28.2¢$62
Arizona15.2¢$34
Arkansas14.1¢$31
California34.7¢$77
Colorado17.1¢$38
Connecticut24.3¢$54
Delaware19.3¢$43
District of Columbia24.4¢$54
Florida15.1¢$33
Georgia16.4¢$36
Hawaiipriciest52.7¢$117
Idaho14.4¢$32
Illinois19.9¢$44
Indiana17.5¢$39
Iowa15.9¢$35
Kansas15.7¢$35
Kentucky14.3¢$32
Louisiana13.5¢$30
Maine29.6¢$65
Maryland21.8¢$48
Massachusetts29.6¢$65
Michigan23.0¢$51
Minnesota17.5¢$39
Mississippi14.9¢$33
Missouri16.2¢$36
Montana15.1¢$33
Nebraska13.3¢$29
Nevadacheapest13.1¢$29
New Hampshire27.0¢$60
New Jersey24.9¢$55
New Mexico15.1¢$33
New York29.5¢$65
North Carolina14.7¢$33
North Dakota14.1¢$31
Ohio19.2¢$42
Oklahoma14.3¢$32
Oregon16.3¢$36
Pennsylvania21.7¢$48
Rhode Island29.2¢$65
South Carolina15.6¢$34
South Dakota15.4¢$34
Tennessee14.1¢$31
Texas15.9¢$35
Utah13.4¢$30
Vermont24.4¢$54
Virginia17.2¢$38
Washington14.9¢$33
West Virginia15.4¢$34
Wisconsin19.6¢$43
Wyoming15.2¢$34

Certified models closest in efficiency

compact refrigerators within reach of 221 kWh/yr
ModelkWh/yr$/yr (US avg)
Danby DAR017A3221$41
Danby Designer DAR017A2221$41
roomwell REFNFR1700221$41
Amana AMAR35S1E220$40
ARCTIC CHEF ACFR325-C-BLACK220$40
ARCTIC CHEF ACFR325-C-BLACK-6COM220$40

Run your own numbers

Your rate, your numbers

Per day
11¢
Per month
$3.38
Per year
$41

221 kWh/yr × 18.3¢/kWh = $41/yr

Prefilled with this model's certified 221 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 ID-30R use?
ENERGY STAR certifies the Sub-Zero ID-30R at 221 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 ID-30R cost to run per month?
About $3.38 a month at the U.S. average residential rate (18.3¢/kWh) — 11¢ a day, or $41 a year. Your state's rate moves this up or down; see the table above.
Is the Sub-Zero ID-30R energy efficient?
It uses 10% less electricity than the median certified compact refrigerator.
What does the Sub-Zero ID-30R cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $29 a year in Nevada (13.1¢/kWh) and $117 in Hawaii (52.7¢/kWh).
How many watts does the Sub-Zero ID-30R draw on average?
Spread over a year of continuous operation, 221 kWh works out to an average draw of about 25 watts — like leaving a 25-watt bulb on 24/7.

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