WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Smeg CB300U

The Smeg CB300U never switches off, and its certified 387 kWh a year works out to about $71 on a U.S.-average electric bill — roughly $5.91 a month for an average continuous draw of 44 watts. Only a handful of certified bottom-freezer refrigerators do better: it ranks 91 of 1478 and undercuts the median by 31%. Where you live moves the bill from $51 a year in Nevada to $204 in Hawaii.

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

Dimensions 69.7" H × 22" W

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

$71/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$5.91
Per day
19¢
Certified use
387 kWh/yr
Configuration
Bottom Freezer
Total capacity
8.4 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the Smeg CB300U (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Smeg CB300U: 387 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$63
Alaska28.2¢$109
Arizona15.2¢$59
Arkansas14.1¢$55
California34.7¢$134
Colorado17.1¢$66
Connecticut24.3¢$94
Delaware19.3¢$75
District of Columbia24.4¢$94
Florida15.1¢$58
Georgia16.4¢$63
Hawaiipriciest52.7¢$204
Idaho14.4¢$56
Illinois19.9¢$77
Indiana17.5¢$68
Iowa15.9¢$62
Kansas15.7¢$61
Kentucky14.3¢$55
Louisiana13.5¢$52
Maine29.6¢$115
Maryland21.8¢$85
Massachusetts29.6¢$115
Michigan23.0¢$89
Minnesota17.5¢$68
Mississippi14.9¢$58
Missouri16.2¢$63
Montana15.1¢$59
Nebraska13.3¢$51
Nevadacheapest13.1¢$51
New Hampshire27.0¢$105
New Jersey24.9¢$97
New Mexico15.1¢$58
New York29.5¢$114
North Carolina14.7¢$57
North Dakota14.1¢$55
Ohio19.2¢$74
Oklahoma14.3¢$55
Oregon16.3¢$63
Pennsylvania21.7¢$84
Rhode Island29.2¢$113
South Carolina15.6¢$60
South Dakota15.4¢$59
Tennessee14.1¢$54
Texas15.9¢$62
Utah13.4¢$52
Vermont24.4¢$95
Virginia17.2¢$67
Washington14.9¢$58
West Virginia15.4¢$60
Wisconsin19.6¢$76
Wyoming15.2¢$59

Certified models closest in efficiency

bottom-freezer refrigerators within reach of 387 kWh/yr
ModelkWh/yr$/yr (US avg)
Bosch B09IB91NS388$71
Gaggenau RB282705388$71
Liebherr SC7541IMmost efficient386$71
Ikea BERGSNAS 60607883389$71
Sharp SJB1045SNS385$71
Summit FFBF103385$71

Run your own numbers

Your rate, your numbers

Per day
19¢
Per month
$5.91
Per year
$71

387 kWh/yr × 18.3¢/kWh = $71/yr

Prefilled with this model's certified 387 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 Smeg CB300U use?
ENERGY STAR certifies the Smeg CB300U at 387 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 Smeg CB300U cost to run per month?
About $5.91 a month at the U.S. average residential rate (18.3¢/kWh) — 19¢ a day, or $71 a year. Your state's rate moves this up or down; see the table above.
Is the Smeg CB300U energy efficient?
It uses 31% less electricity than the median certified bottom-freezer refrigerator, placing it in the top 10% of certified models.
What does the Smeg CB300U cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $51 a year in Nevada (13.1¢/kWh) and $204 in Hawaii (52.7¢/kWh).
How many watts does the Smeg CB300U draw on average?
Spread over a year of continuous operation, 387 kWh works out to an average draw of about 44 watts — like leaving a 44-watt bulb on 24/7.

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