WattCost

Data through June 2026

Running cost · Refrigerators · ENERGY STAR certified

Hamilton Beach HZ4051

Running around the clock, the Hamilton Beach HZ4051 uses a certified 442 kWh per year — about $81 at the U.S. average rate, or $6.76 a month, the equivalent of a steady 50-watt draw. Compared with the median certified bottom-freezer refrigerator, it uses 21% less electricity — rank 244 out of 1478. The same unit costs $58 a year in Nevada but $233 in Hawaii — electricity rates, not the appliance, make the difference.

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

Dimensions 72.1" H × 32.9" W

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

$81/yr

$7.70 · cheapest certified refrigerators$148 · priciest
Per month
$6.76
Per day
22¢
Certified use
442 kWh/yr
Configuration
Bottom Freezer
Total capacity
17.9 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the Hamilton Beach HZ4051 (▮) sits among all 4,371 certified refrigerators, by annual kWh

What it costs in every state

Hamilton Beach HZ4051: 442 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$72
Alaska28.2¢$125
Arizona15.2¢$67
Arkansas14.1¢$62
California34.7¢$154
Colorado17.1¢$76
Connecticut24.3¢$107
Delaware19.3¢$85
District of Columbia24.4¢$108
Florida15.1¢$67
Georgia16.4¢$72
Hawaiipriciest52.7¢$233
Idaho14.4¢$64
Illinois19.9¢$88
Indiana17.5¢$77
Iowa15.9¢$70
Kansas15.7¢$69
Kentucky14.3¢$63
Louisiana13.5¢$60
Maine29.6¢$131
Maryland21.8¢$97
Massachusetts29.6¢$131
Michigan23.0¢$102
Minnesota17.5¢$77
Mississippi14.9¢$66
Missouri16.2¢$72
Montana15.1¢$67
Nebraska13.3¢$59
Nevadacheapest13.1¢$58
New Hampshire27.0¢$119
New Jersey24.9¢$110
New Mexico15.1¢$67
New York29.5¢$130
North Carolina14.7¢$65
North Dakota14.1¢$62
Ohio19.2¢$85
Oklahoma14.3¢$63
Oregon16.3¢$72
Pennsylvania21.7¢$96
Rhode Island29.2¢$129
South Carolina15.6¢$69
South Dakota15.4¢$68
Tennessee14.1¢$62
Texas15.9¢$70
Utah13.4¢$59
Vermont24.4¢$108
Virginia17.2¢$76
Washington14.9¢$66
West Virginia15.4¢$68
Wisconsin19.6¢$86
Wyoming15.2¢$67

Certified models closest in efficiency

bottom-freezer refrigerators within reach of 442 kWh/yr
ModelkWh/yr$/yr (US avg)
Avanti FFFDD18L3S442$81
KOOLMORE KM-RER4FDB-20442$81
KOOLMORE KM-RER4FDSS-20442$81
KOOLMORE KM-RER4FDW-20442$81
UNIQUE UNQ-455L B AC442$81
UNIQUE UNQ-455L LG AC442$81

Run your own numbers

Your rate, your numbers

Per day
22¢
Per month
$6.76
Per year
$81

442 kWh/yr × 18.3¢/kWh = $81/yr

Prefilled with this model's certified 442 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 Hamilton Beach HZ4051 use?
ENERGY STAR certifies the Hamilton Beach HZ4051 at 442 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 Hamilton Beach HZ4051 cost to run per month?
About $6.76 a month at the U.S. average residential rate (18.3¢/kWh) — 22¢ a day, or $81 a year. Your state's rate moves this up or down; see the table above.
Is the Hamilton Beach HZ4051 energy efficient?
It uses 21% less electricity than the median certified bottom-freezer refrigerator, placing it in the efficient third of certified models.
What does the Hamilton Beach HZ4051 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $58 a year in Nevada (13.1¢/kWh) and $233 in Hawaii (52.7¢/kWh).
How many watts does the Hamilton Beach HZ4051 draw on average?
Spread over a year of continuous operation, 442 kWh works out to an average draw of about 50 watts — like leaving a 50-watt bulb on 24/7.

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