WattCost

Data through April 2026

Running cost · Refrigerators · ENERGY STAR certified

THOR KITCHEN TRF3621FD

Running around the clock, the THOR KITCHEN TRF3621FD uses a certified 539 kWh per year — about $101 at the U.S. average rate, or $8.46 a month, the equivalent of a steady 62-watt draw. That's close to the middle of the certified pack — about 4% under the median bottom-freezer refrigerator, ranked 576 of 1458. Where you live moves the bill from $67 a year in North Dakota to $251 in Hawaii.

Uses 15% less energy than the U.S. federal minimum

Dimensions 70.1" H × 35.9" W

Estimated annual running cost · U.S. average rate 18.8¢/kWh

$101/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$8.46
Per day
28¢
Certified use
539 kWh/yr
Configuration
Bottom Freezer
Total capacity
20.3 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
No
42 kWh805 kWh
Where the THOR KITCHEN TRF3621FD (▮) sits among all 4,229 certified refrigerators, by annual kWh

What it costs in every state

THOR KITCHEN TRF3621FD: 539 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$94
Alaska27.4¢$147
Arizona15.5¢$83
Arkansas14.2¢$76
California35.3¢$190
Colorado16.5¢$89
Connecticut32.2¢$174
Delaware18.8¢$101
District of Columbia25.4¢$137
Florida15.4¢$83
Georgia15.4¢$83
Hawaiipriciest46.6¢$251
Idaho12.7¢$68
Illinois20.5¢$110
Indiana17.9¢$96
Iowa13.9¢$75
Kansas15.8¢$85
Kentucky15.0¢$81
Louisiana14.4¢$78
Maine28.4¢$153
Maryland22.1¢$119
Massachusetts29.4¢$159
Michigan21.4¢$115
Minnesota16.4¢$88
Mississippi16.8¢$90
Missouri14.0¢$76
Montana13.9¢$75
Nebraska13.3¢$72
Nevada14.3¢$77
New Hampshire27.2¢$147
New Jersey23.5¢$127
New Mexico15.2¢$82
New York29.4¢$159
North Carolina16.3¢$88
North Dakotacheapest12.3¢$67
Ohio19.5¢$105
Oklahoma13.3¢$72
Oregon15.8¢$85
Pennsylvania21.5¢$116
Rhode Island28.3¢$153
South Carolina17.1¢$92
South Dakota14.5¢$78
Tennessee14.9¢$81
Texas17.0¢$92
Utah13.3¢$72
Vermont24.6¢$132
Virginia17.4¢$94
Washington14.4¢$77
West Virginia16.1¢$87
Wisconsin19.2¢$104
Wyoming14.7¢$79

Certified models closest in efficiency

bottom-freezer refrigerators within reach of 539 kWh/yr
ModelkWh/yr$/yr (US avg)
Continental CE-FRF172539$101
FORZA FF36FBMS539$101
FULGOR MILANO FM4FBM36SS539$101
Kenmore 897.7551#32539$101
Kenmore 897.75515320539$101
Kenmore KKFDR36x20.3HI-SS539$101

Run your own numbers

Your rate, your numbers

Per day
28¢
Per month
$8.46
Per year
$101

539 kWh/yr × 18.8¢/kWh = $101/yr

Prefilled with this model's certified 539 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 THOR KITCHEN TRF3621FD use?
ENERGY STAR certifies the THOR KITCHEN TRF3621FD at 539 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 THOR KITCHEN TRF3621FD cost to run per month?
About $8.46 a month at the U.S. average residential rate (18.8¢/kWh) — 28¢ a day, or $101 a year. Your state's rate moves this up or down; see the table above.
Is the THOR KITCHEN TRF3621FD energy efficient?
It uses 4% less electricity than the median certified bottom-freezer refrigerator.
What does the THOR KITCHEN TRF3621FD cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $67 a year in North Dakota (12.3¢/kWh) and $251 in Hawaii (46.6¢/kWh).
How many watts does the THOR KITCHEN TRF3621FD draw on average?
Spread over a year of continuous operation, 539 kWh works out to an average draw of about 62 watts — like leaving a 62-watt bulb on 24/7.

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