WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Sub-Zero ID-30CI

The Sub-Zero ID-30CI never switches off, and its certified 458 kWh a year works out to about $84 on a U.S.-average electric bill — roughly $7.00 a month for an average continuous draw of 52 watts. It sits near the bottom of the certified table — using 86% more than the median compact refrigerator (rank 1641 of 1645) — so the state you live in matters more than usual. Where you live moves the bill from $60 a year in Nevada to $241 in Hawaii.

Uses 10% 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

$84/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$7.00
Per day
23¢
Certified use
458 kWh/yr
Configuration
Compact Refrigerator
Total capacity
5 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
No
42 kWh805 kWh
Where the Sub-Zero ID-30CI (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Sub-Zero ID-30CI: 458 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$75
Alaska28.2¢$129
Arizona15.2¢$70
Arkansas14.1¢$65
California34.7¢$159
Colorado17.1¢$78
Connecticut24.3¢$111
Delaware19.3¢$88
District of Columbia24.4¢$112
Florida15.1¢$69
Georgia16.4¢$75
Hawaiipriciest52.7¢$241
Idaho14.4¢$66
Illinois19.9¢$91
Indiana17.5¢$80
Iowa15.9¢$73
Kansas15.7¢$72
Kentucky14.3¢$65
Louisiana13.5¢$62
Maine29.6¢$136
Maryland21.8¢$100
Massachusetts29.6¢$136
Michigan23.0¢$105
Minnesota17.5¢$80
Mississippi14.9¢$68
Missouri16.2¢$74
Montana15.1¢$69
Nebraska13.3¢$61
Nevadacheapest13.1¢$60
New Hampshire27.0¢$124
New Jersey24.9¢$114
New Mexico15.1¢$69
New York29.5¢$135
North Carolina14.7¢$68
North Dakota14.1¢$65
Ohio19.2¢$88
Oklahoma14.3¢$66
Oregon16.3¢$75
Pennsylvania21.7¢$100
Rhode Island29.2¢$134
South Carolina15.6¢$71
South Dakota15.4¢$70
Tennessee14.1¢$64
Texas15.9¢$73
Utah13.4¢$61
Vermont24.4¢$112
Virginia17.2¢$79
Washington14.9¢$68
West Virginia15.4¢$71
Wisconsin19.6¢$90
Wyoming15.2¢$70

Certified models closest in efficiency

compact refrigerators within reach of 458 kWh/yr
ModelkWh/yr$/yr (US avg)
Marvel MLRI*24-IS*1A470$86
Marvel MLRI*24-SS*1A470$86
Marvel MPRI*24-IS*1A470$86
Marvel MPRI*24-SS*1A470$86
Jenn-Air JUCFP242H*1442$81
KitchenAid KUCT524SPA442$81

Run your own numbers

Your rate, your numbers

Per day
23¢
Per month
$7.00
Per year
$84

458 kWh/yr × 18.3¢/kWh = $84/yr

Prefilled with this model's certified 458 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-30CI use?
ENERGY STAR certifies the Sub-Zero ID-30CI at 458 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-30CI cost to run per month?
About $7.00 a month at the U.S. average residential rate (18.3¢/kWh) — 23¢ a day, or $84 a year. Your state's rate moves this up or down; see the table above.
Is the Sub-Zero ID-30CI energy efficient?
It uses 86% more electricity than the median certified compact refrigerator, which puts it among the least efficient certified models.
What does the Sub-Zero ID-30CI cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $60 a year in Nevada (13.1¢/kWh) and $241 in Hawaii (52.7¢/kWh).
How many watts does the Sub-Zero ID-30CI draw on average?
Spread over a year of continuous operation, 458 kWh works out to an average draw of about 52 watts — like leaving a 52-watt bulb on 24/7.

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