WattCost

Data through April 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 $86 on a U.S.-average electric bill — roughly $7.19 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 1585 of 1589) — so the state you live in matters more than usual. Where you live moves the bill from $57 a year in North Dakota to $214 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 18.8¢/kWh

$86/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$7.19
Per day
24¢
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 4,229 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
Alabama17.4¢$80
Alaska27.4¢$125
Arizona15.5¢$71
Arkansas14.2¢$65
California35.3¢$161
Colorado16.5¢$76
Connecticut32.2¢$148
Delaware18.8¢$86
District of Columbia25.4¢$116
Florida15.4¢$70
Georgia15.4¢$70
Hawaiipriciest46.6¢$214
Idaho12.7¢$58
Illinois20.5¢$94
Indiana17.9¢$82
Iowa13.9¢$63
Kansas15.8¢$72
Kentucky15.0¢$69
Louisiana14.4¢$66
Maine28.4¢$130
Maryland22.1¢$101
Massachusetts29.4¢$135
Michigan21.4¢$98
Minnesota16.4¢$75
Mississippi16.8¢$77
Missouri14.0¢$64
Montana13.9¢$64
Nebraska13.3¢$61
Nevada14.3¢$65
New Hampshire27.2¢$125
New Jersey23.5¢$108
New Mexico15.2¢$69
New York29.4¢$135
North Carolina16.3¢$74
North Dakotacheapest12.3¢$57
Ohio19.5¢$89
Oklahoma13.3¢$61
Oregon15.8¢$72
Pennsylvania21.5¢$98
Rhode Island28.3¢$130
South Carolina17.1¢$78
South Dakota14.5¢$67
Tennessee14.9¢$68
Texas17.0¢$78
Utah13.3¢$61
Vermont24.6¢$112
Virginia17.4¢$80
Washington14.4¢$66
West Virginia16.1¢$74
Wisconsin19.2¢$88
Wyoming14.7¢$67

Certified models closest in efficiency

compact refrigerators within reach of 458 kWh/yr
ModelkWh/yr$/yr (US avg)
Marvel MLRI*24-IS*1A470$89
Marvel MLRI*24-SS*1A470$89
Marvel MPRI*24-IS*1A470$89
Marvel MPRI*24-SS*1A470$89
Jenn-Air JUCFP242H*1442$83
KitchenAid KUCT524SPA442$83

Run your own numbers

Your rate, your numbers

Per day
24¢
Per month
$7.19
Per year
$86

458 kWh/yr × 18.8¢/kWh = $86/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 $7.19 a month at the U.S. average residential rate (18.8¢/kWh) — 24¢ a day, or $86 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 $57 a year in North Dakota (12.3¢/kWh) and $214 in Hawaii (46.6¢/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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