WattCost

Data through June 2026

Running cost · Freezers · ENERGY STAR certified

Midea MRU21B4

The Midea MRU21B4 never switches off, and its certified 493 kWh a year works out to about $90 on a U.S.-average electric bill — roughly $7.53 a month for an average continuous draw of 56 watts. That's close to the middle of the certified pack — about 13% above the median upright freezer, ranked 336 of 451. The same unit costs $65 a year in Nevada but $260 in Hawaii — electricity rates, not the appliance, make the difference.

Uses 10% less energy than the U.S. federal minimum

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

$90/yr

$25 · cheapest certified freezers$119 · priciest
Per month
$7.53
Per day
25¢
Certified use
493 kWh/yr
Configuration
Upright Freezer
Total capacity
21.1 cu ft
Defrost
Automatic
Compact
No
137 kWh649 kWh
Where the Midea MRU21B4 (▮) sits among all 594 certified freezers, by annual kWh

What it costs in every state

Midea MRU21B4: 493 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$81
Alaska28.2¢$139
Arizona15.2¢$75
Arkansas14.1¢$70
California34.7¢$171
Colorado17.1¢$84
Connecticut24.3¢$120
Delaware19.3¢$95
District of Columbia24.4¢$120
Florida15.1¢$74
Georgia16.4¢$81
Hawaiipriciest52.7¢$260
Idaho14.4¢$71
Illinois19.9¢$98
Indiana17.5¢$86
Iowa15.9¢$79
Kansas15.7¢$77
Kentucky14.3¢$70
Louisiana13.5¢$67
Maine29.6¢$146
Maryland21.8¢$108
Massachusetts29.6¢$146
Michigan23.0¢$113
Minnesota17.5¢$86
Mississippi14.9¢$73
Missouri16.2¢$80
Montana15.1¢$75
Nebraska13.3¢$65
Nevadacheapest13.1¢$65
New Hampshire27.0¢$133
New Jersey24.9¢$123
New Mexico15.1¢$74
New York29.5¢$145
North Carolina14.7¢$73
North Dakota14.1¢$70
Ohio19.2¢$95
Oklahoma14.3¢$71
Oregon16.3¢$80
Pennsylvania21.7¢$107
Rhode Island29.2¢$144
South Carolina15.6¢$77
South Dakota15.4¢$76
Tennessee14.1¢$69
Texas15.9¢$79
Utah13.4¢$66
Vermont24.4¢$120
Virginia17.2¢$85
Washington14.9¢$74
West Virginia15.4¢$76
Wisconsin19.6¢$96
Wyoming15.2¢$75

Certified models closest in efficiency

upright freezers within reach of 493 kWh/yr
ModelkWh/yr$/yr (US avg)
Avanti AV210VFLJM493$90
Avanti AV2121VFB0W493$90
BLACK+DECKER BUC2120M493$90
Criterion CUF21C1W493$90
Criterion CUF21M2493$90
Crosley CFUMH21A493$90

Run your own numbers

Your rate, your numbers

Per day
25¢
Per month
$7.53
Per year
$90

493 kWh/yr × 18.3¢/kWh = $90/yr

Prefilled with this model's certified 493 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.

Questions, answered with the data

How much electricity does the Midea MRU21B4 use?
ENERGY STAR certifies the Midea MRU21B4 at 493 kWh per year. The certified annual kWh comes from the DOE test procedure, which measures continuous 24/7 operation at standardized temperatures.
How much does the Midea MRU21B4 cost to run per month?
About $7.53 a month at the U.S. average residential rate (18.3¢/kWh) — 25¢ a day, or $90 a year. Your state's rate moves this up or down; see the table above.
Is the Midea MRU21B4 energy efficient?
It uses 13% more electricity than the median certified upright freezer.
What does the Midea MRU21B4 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $65 a year in Nevada (13.1¢/kWh) and $260 in Hawaii (52.7¢/kWh).
How many watts does the Midea MRU21B4 draw on average?
Spread over a year of continuous operation, 493 kWh works out to an average draw of about 56 watts — like leaving a 56-watt bulb on 24/7.

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