WattCost

Data through June 2026

Running cost · Freezers · ENERGY STAR certified

Insignia NS-UZ21WH0

The Insignia NS-UZ21WH0 never switches off, and its certified 492 kWh a year works out to about $90 on a U.S.-average electric bill — roughly $7.52 a month for an average continuous draw of 56 watts. Efficiency-wise it's unremarkable in a good way: within 12% of the median certified upright freezer (rank 305 of 451). Where you live moves the bill from $65 a year in Nevada to $259 in Hawaii.

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
$7.52
Per day
25¢
Certified use
492 kWh/yr
Configuration
Upright Freezer
Total capacity
21 cu ft
Defrost
Automatic
Compact
No
137 kWh649 kWh
Where the Insignia NS-UZ21WH0 (▮) sits among all 594 certified freezers, by annual kWh

What it costs in every state

Insignia NS-UZ21WH0: 492 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¢$69
California34.7¢$171
Colorado17.1¢$84
Connecticut24.3¢$120
Delaware19.3¢$95
District of Columbia24.4¢$120
Florida15.1¢$74
Georgia16.4¢$80
Hawaiipriciest52.7¢$259
Idaho14.4¢$71
Illinois19.9¢$98
Indiana17.5¢$86
Iowa15.9¢$78
Kansas15.7¢$77
Kentucky14.3¢$70
Louisiana13.5¢$66
Maine29.6¢$146
Maryland21.8¢$107
Massachusetts29.6¢$146
Michigan23.0¢$113
Minnesota17.5¢$86
Mississippi14.9¢$73
Missouri16.2¢$80
Montana15.1¢$74
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¢$69
Ohio19.2¢$94
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¢$78
Utah13.4¢$66
Vermont24.4¢$120
Virginia17.2¢$85
Washington14.9¢$73
West Virginia15.4¢$76
Wisconsin19.6¢$96
Wyoming15.2¢$75

Certified models closest in efficiency

upright freezers within reach of 492 kWh/yr
ModelkWh/yr$/yr (US avg)
Arctic Wind AUFSS210ETH-LK492$90
Arctic Wind AUFW210ETH-LK492$90
ARTT ATUF21ES492$90
ARTT ATUF21ES SS492$90
Danby Designer DUF206E1492$90
Danby DUF206E1SSLDB492$90

Run your own numbers

Your rate, your numbers

Per day
25¢
Per month
$7.52
Per year
$90

492 kWh/yr × 18.3¢/kWh = $90/yr

Prefilled with this model's certified 492 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.

Certified variants covered by this entry

NS-UZ21WH0 · NS-UZ21WH0*

Questions, answered with the data

How much electricity does the Insignia NS-UZ21WH0 use?
ENERGY STAR certifies the Insignia NS-UZ21WH0 at 492 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 Insignia NS-UZ21WH0 cost to run per month?
About $7.52 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 Insignia NS-UZ21WH0 energy efficient?
It uses 12% more electricity than the median certified upright freezer.
What does the Insignia NS-UZ21WH0 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 $259 in Hawaii (52.7¢/kWh).
How many watts does the Insignia NS-UZ21WH0 draw on average?
Spread over a year of continuous operation, 492 kWh works out to an average draw of about 56 watts — like leaving a 56-watt bulb on 24/7.
Does this figure cover other model numbers?
Yes — 2 certified retail variants (color, finish, and store-specific SKUs) share this exact energy certification. They're listed under "Certified variants" on this page.

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