WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Zline RFM-36

Running around the clock, the Zline RFM-36 uses a certified 588 kWh per year — about $108 at the U.S. average rate, or $8.99 a month, the equivalent of a steady 67-watt draw. Efficiency-wise it's unremarkable in a good way: within 4% of the median certified bottom-freezer refrigerator (rank 899 of 1478). Where you live moves the bill from $77 a year in Nevada to $310 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

$108/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$8.99
Per day
30¢
Certified use
588 kWh/yr
Configuration
Bottom Freezer
Total capacity
22.5 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
No
42 kWh805 kWh
Where the Zline RFM-36 (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Zline RFM-36: 588 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$96
Alaska28.2¢$166
Arizona15.2¢$89
Arkansas14.1¢$83
California34.7¢$204
Colorado17.1¢$101
Connecticut24.3¢$143
Delaware19.3¢$113
District of Columbia24.4¢$143
Florida15.1¢$89
Georgia16.4¢$96
Hawaiipriciest52.7¢$310
Idaho14.4¢$84
Illinois19.9¢$117
Indiana17.5¢$103
Iowa15.9¢$94
Kansas15.7¢$92
Kentucky14.3¢$84
Louisiana13.5¢$79
Maine29.6¢$174
Maryland21.8¢$128
Massachusetts29.6¢$174
Michigan23.0¢$135
Minnesota17.5¢$103
Mississippi14.9¢$87
Missouri16.2¢$95
Montana15.1¢$89
Nebraska13.3¢$78
Nevadacheapest13.1¢$77
New Hampshire27.0¢$159
New Jersey24.9¢$147
New Mexico15.1¢$89
New York29.5¢$173
North Carolina14.7¢$87
North Dakota14.1¢$83
Ohio19.2¢$113
Oklahoma14.3¢$84
Oregon16.3¢$96
Pennsylvania21.7¢$128
Rhode Island29.2¢$172
South Carolina15.6¢$91
South Dakota15.4¢$90
Tennessee14.1¢$83
Texas15.9¢$94
Utah13.4¢$79
Vermont24.4¢$144
Virginia17.2¢$101
Washington14.9¢$88
West Virginia15.4¢$91
Wisconsin19.6¢$115
Wyoming15.2¢$90

Certified models closest in efficiency

bottom-freezer refrigerators within reach of 588 kWh/yr
ModelkWh/yr$/yr (US avg)
Bertazzoni REF36FDFIXN588$108
Bertazzoni REF36FDFIXNB588$108
Bertazzoni REF36FDFIXNB/26588$108
Bertazzoni REF36FDFIXNV588$108
COSMO COS-FDR225RHSS588$108
COSMO COS-FDR225RHSS-G588$108

Run your own numbers

Your rate, your numbers

Per day
30¢
Per month
$8.99
Per year
$108

588 kWh/yr × 18.3¢/kWh = $108/yr

Prefilled with this model's certified 588 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 Zline RFM-36 use?
ENERGY STAR certifies the Zline RFM-36 at 588 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 Zline RFM-36 cost to run per month?
About $8.99 a month at the U.S. average residential rate (18.3¢/kWh) — 30¢ a day, or $108 a year. Your state's rate moves this up or down; see the table above.
Is the Zline RFM-36 energy efficient?
It uses 4% more electricity than the median certified bottom-freezer refrigerator.
What does the Zline RFM-36 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $77 a year in Nevada (13.1¢/kWh) and $310 in Hawaii (52.7¢/kWh).
How many watts does the Zline RFM-36 draw on average?
Spread over a year of continuous operation, 588 kWh works out to an average draw of about 67 watts — like leaving a 67-watt bulb on 24/7.

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