WattCost

Data through April 2026

Running cost · Refrigerators · ENERGY STAR certified

Hisense RT21N3**E

Running around the clock, the Hisense RT21N3**E uses a certified 394 kWh per year — about $74 at the U.S. average rate, or $6.18 a month, the equivalent of a steady 45-watt draw. Efficiency-wise it's unremarkable in a good way: within 9% of the median certified top-freezer refrigerator (rank 502 of 674). Where you live moves the bill from $49 a year in North Dakota to $184 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria.

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

Dimensions 66.5" H × 29.7" W

Estimated annual running cost · U.S. average rate 18.8¢/kWh

$74/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$6.18
Per day
20¢
Certified use
394 kWh/yr
Configuration
Top Freezer
Total capacity
21.2 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the Hisense RT21N3**E (▮) sits among all 4,229 certified refrigerators, by annual kWh

What it costs in every state

Hisense RT21N3**E: 394 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$69
Alaska27.4¢$108
Arizona15.5¢$61
Arkansas14.2¢$56
California35.3¢$139
Colorado16.5¢$65
Connecticut32.2¢$127
Delaware18.8¢$74
District of Columbia25.4¢$100
Florida15.4¢$61
Georgia15.4¢$61
Hawaiipriciest46.6¢$184
Idaho12.7¢$50
Illinois20.5¢$81
Indiana17.9¢$71
Iowa13.9¢$55
Kansas15.8¢$62
Kentucky15.0¢$59
Louisiana14.4¢$57
Maine28.4¢$112
Maryland22.1¢$87
Massachusetts29.4¢$116
Michigan21.4¢$84
Minnesota16.4¢$65
Mississippi16.8¢$66
Missouri14.0¢$55
Montana13.9¢$55
Nebraska13.3¢$52
Nevada14.3¢$56
New Hampshire27.2¢$107
New Jersey23.5¢$93
New Mexico15.2¢$60
New York29.4¢$116
North Carolina16.3¢$64
North Dakotacheapest12.3¢$49
Ohio19.5¢$77
Oklahoma13.3¢$52
Oregon15.8¢$62
Pennsylvania21.5¢$85
Rhode Island28.3¢$112
South Carolina17.1¢$67
South Dakota14.5¢$57
Tennessee14.9¢$59
Texas17.0¢$67
Utah13.3¢$52
Vermont24.6¢$97
Virginia17.4¢$68
Washington14.4¢$57
West Virginia16.1¢$63
Wisconsin19.2¢$76
Wyoming14.7¢$58

Certified models closest in efficiency

top-freezer refrigerators within reach of 394 kWh/yr
ModelkWh/yr$/yr (US avg)
GE GPE12FGKmost efficient394$74
GE GPE12FSKmost efficient394$74
Hisense RT210N3S*EHmost efficient394$74
Midea HD-774most efficient394$74
Mora RT210N3A*EMmost efficient394$74
Samsung RT21M62*3most efficient394$74

Run your own numbers

Your rate, your numbers

Per day
20¢
Per month
$6.18
Per year
$74

394 kWh/yr × 18.8¢/kWh = $74/yr

Prefilled with this model's certified 394 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 Hisense RT21N3**E use?
ENERGY STAR certifies the Hisense RT21N3**E at 394 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 Hisense RT21N3**E cost to run per month?
About $6.18 a month at the U.S. average residential rate (18.8¢/kWh) — 20¢ a day, or $74 a year. Your state's rate moves this up or down; see the table above.
Is the Hisense RT21N3**E energy efficient?
It uses 9% more electricity than the median certified top-freezer refrigerator. It also meets ENERGY STAR's Most Efficient criteria.
What does the Hisense RT21N3**E cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $49 a year in North Dakota (12.3¢/kWh) and $184 in Hawaii (46.6¢/kWh).
How many watts does the Hisense RT21N3**E draw on average?
Spread over a year of continuous operation, 394 kWh works out to an average draw of about 45 watts — like leaving a 45-watt bulb on 24/7.

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