WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

KOSTCH KOS-36RF

The KOSTCH KOS-36RF never switches off, and its certified 658 kWh a year works out to about $121 on a U.S.-average electric bill — roughly $10.06 a month for an average continuous draw of 75 watts. Even among certified models it's on the thirsty end: 17% more electricity than the median bottom-freezer refrigerator, ranked 1148 of 1478. Where you live moves the bill from $86 a year in Nevada to $347 in Hawaii.

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

Dimensions 69.9" H × 35.8" W

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

$121/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$10.06
Per day
33¢
Certified use
658 kWh/yr
Configuration
Bottom Freezer
Total capacity
21.6 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
Yes
42 kWh805 kWh
Where the KOSTCH KOS-36RF (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

KOSTCH KOS-36RF: 658 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$108
Alaska28.2¢$186
Arizona15.2¢$100
Arkansas14.1¢$93
California34.7¢$229
Colorado17.1¢$113
Connecticut24.3¢$160
Delaware19.3¢$127
District of Columbia24.4¢$160
Florida15.1¢$99
Georgia16.4¢$108
Hawaiipriciest52.7¢$347
Idaho14.4¢$95
Illinois19.9¢$131
Indiana17.5¢$115
Iowa15.9¢$105
Kansas15.7¢$103
Kentucky14.3¢$94
Louisiana13.5¢$89
Maine29.6¢$195
Maryland21.8¢$144
Massachusetts29.6¢$195
Michigan23.0¢$151
Minnesota17.5¢$115
Mississippi14.9¢$98
Missouri16.2¢$107
Montana15.1¢$100
Nebraska13.3¢$87
Nevadacheapest13.1¢$86
New Hampshire27.0¢$178
New Jersey24.9¢$164
New Mexico15.1¢$99
New York29.5¢$194
North Carolina14.7¢$97
North Dakota14.1¢$93
Ohio19.2¢$126
Oklahoma14.3¢$94
Oregon16.3¢$107
Pennsylvania21.7¢$143
Rhode Island29.2¢$192
South Carolina15.6¢$102
South Dakota15.4¢$101
Tennessee14.1¢$93
Texas15.9¢$105
Utah13.4¢$88
Vermont24.4¢$161
Virginia17.2¢$113
Washington14.9¢$98
West Virginia15.4¢$102
Wisconsin19.6¢$129
Wyoming15.2¢$100

Certified models closest in efficiency

bottom-freezer refrigerators within reach of 658 kWh/yr
ModelkWh/yr$/yr (US avg)
Bertazzoni REF36FDFZXNT658$121
GRANDEUR UFDMH226AS658$121
Ikea OVERSKADLIG658$121
Midea MRQ22D4AST658$121
Midea MRQ22D5AST658$121
Midea MRQ22D7AST658$121

Run your own numbers

Your rate, your numbers

Per day
33¢
Per month
$10.06
Per year
$121

658 kWh/yr × 18.3¢/kWh = $121/yr

Prefilled with this model's certified 658 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 KOSTCH KOS-36RF use?
ENERGY STAR certifies the KOSTCH KOS-36RF at 658 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 KOSTCH KOS-36RF cost to run per month?
About $10.06 a month at the U.S. average residential rate (18.3¢/kWh) — 33¢ a day, or $121 a year. Your state's rate moves this up or down; see the table above.
Is the KOSTCH KOS-36RF energy efficient?
It uses 17% more electricity than the median certified bottom-freezer refrigerator, which puts it among the least efficient certified models.
What does the KOSTCH KOS-36RF cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $86 a year in Nevada (13.1¢/kWh) and $347 in Hawaii (52.7¢/kWh).
How many watts does the KOSTCH KOS-36RF draw on average?
Spread over a year of continuous operation, 658 kWh works out to an average draw of about 75 watts — like leaving a 75-watt bulb on 24/7.

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