WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Samsung RF18A5101

The Samsung RF18A5101 never switches off, and its certified 540 kWh a year works out to about $99 on a U.S.-average electric bill — roughly $8.25 a month for an average continuous draw of 62 watts. Efficiency-wise it's unremarkable in a good way: within 4% of the median certified bottom-freezer refrigerator (rank 612 of 1478). Where you live moves the bill from $71 a year in Nevada to $285 in Hawaii.

Uses 11% less energy than the U.S. federal minimum

Dimensions 70" H × 32.1" W

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

$99/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$8.25
Per day
27¢
Certified use
540 kWh/yr
Configuration
Bottom Freezer
Total capacity
17.5 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
No
42 kWh805 kWh
Where the Samsung RF18A5101 (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Samsung RF18A5101: 540 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$89
Alaska28.2¢$152
Arizona15.2¢$82
Arkansas14.1¢$76
California34.7¢$188
Colorado17.1¢$93
Connecticut24.3¢$131
Delaware19.3¢$104
District of Columbia24.4¢$132
Florida15.1¢$82
Georgia16.4¢$88
Hawaiipriciest52.7¢$285
Idaho14.4¢$78
Illinois19.9¢$107
Indiana17.5¢$95
Iowa15.9¢$86
Kansas15.7¢$85
Kentucky14.3¢$77
Louisiana13.5¢$73
Maine29.6¢$160
Maryland21.8¢$118
Massachusetts29.6¢$160
Michigan23.0¢$124
Minnesota17.5¢$95
Mississippi14.9¢$80
Missouri16.2¢$88
Montana15.1¢$82
Nebraska13.3¢$72
Nevadacheapest13.1¢$71
New Hampshire27.0¢$146
New Jersey24.9¢$135
New Mexico15.1¢$81
New York29.5¢$159
North Carolina14.7¢$80
North Dakota14.1¢$76
Ohio19.2¢$104
Oklahoma14.3¢$77
Oregon16.3¢$88
Pennsylvania21.7¢$117
Rhode Island29.2¢$158
South Carolina15.6¢$84
South Dakota15.4¢$83
Tennessee14.1¢$76
Texas15.9¢$86
Utah13.4¢$72
Vermont24.4¢$132
Virginia17.2¢$93
Washington14.9¢$81
West Virginia15.4¢$83
Wisconsin19.6¢$106
Wyoming15.2¢$82

Certified models closest in efficiency

bottom-freezer refrigerators within reach of 540 kWh/yr
ModelkWh/yr$/yr (US avg)
Bertazzoni REF30BMBIPLT540$99
Bertazzoni REF30BMBIPRT540$99
Bertazzoni REF30BMBIXLT540$99
Bertazzoni REF30BMBIXRT540$99
BLACK+DECKER BRF1800GIMB540$99
BLACK+DECKER BRF1800GIMS540$99

Run your own numbers

Your rate, your numbers

Per day
27¢
Per month
$8.25
Per year
$99

540 kWh/yr × 18.3¢/kWh = $99/yr

Prefilled with this model's certified 540 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 Samsung RF18A5101 use?
ENERGY STAR certifies the Samsung RF18A5101 at 540 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 Samsung RF18A5101 cost to run per month?
About $8.25 a month at the U.S. average residential rate (18.3¢/kWh) — 27¢ a day, or $99 a year. Your state's rate moves this up or down; see the table above.
Is the Samsung RF18A5101 energy efficient?
It uses 4% less electricity than the median certified bottom-freezer refrigerator.
What does the Samsung RF18A5101 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $71 a year in Nevada (13.1¢/kWh) and $285 in Hawaii (52.7¢/kWh).
How many watts does the Samsung RF18A5101 draw on average?
Spread over a year of continuous operation, 540 kWh works out to an average draw of about 62 watts — like leaving a 62-watt bulb on 24/7.

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