WattCost

Data through April 2026

Running cost · Refrigerators · ENERGY STAR certified

KOOLMORE KM-PRTM-22

The KOOLMORE KM-PRTM-22 never switches off, and its certified 464 kWh a year works out to about $87 on a U.S.-average electric bill — roughly $7.28 a month for an average continuous draw of 53 watts. That's 17% less than the median certified bottom-freezer refrigerator, placing it comfortably in the efficient third of the field (333 of 1458). Where you live moves the bill from $57 a year in North Dakota to $216 in Hawaii.

Uses 12% less energy than the U.S. federal minimum

Dimensions 69.7" H × 21.3" W

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

$87/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$7.28
Per day
24¢
Certified use
464 kWh/yr
Configuration
Bottom Freezer
Total capacity
8.4 cu ft
Defrost
Automatic
Ice maker
Yes
Through-door dispenser
No
42 kWh805 kWh
Where the KOOLMORE KM-PRTM-22 (▮) sits among all 4,229 certified refrigerators, by annual kWh

What it costs in every state

KOOLMORE KM-PRTM-22: 464 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$81
Alaska27.4¢$127
Arizona15.5¢$72
Arkansas14.2¢$66
California35.3¢$164
Colorado16.5¢$77
Connecticut32.2¢$150
Delaware18.8¢$87
District of Columbia25.4¢$118
Florida15.4¢$71
Georgia15.4¢$71
Hawaiipriciest46.6¢$216
Idaho12.7¢$59
Illinois20.5¢$95
Indiana17.9¢$83
Iowa13.9¢$64
Kansas15.8¢$73
Kentucky15.0¢$70
Louisiana14.4¢$67
Maine28.4¢$132
Maryland22.1¢$102
Massachusetts29.4¢$137
Michigan21.4¢$99
Minnesota16.4¢$76
Mississippi16.8¢$78
Missouri14.0¢$65
Montana13.9¢$64
Nebraska13.3¢$62
Nevada14.3¢$66
New Hampshire27.2¢$126
New Jersey23.5¢$109
New Mexico15.2¢$70
New York29.4¢$137
North Carolina16.3¢$75
North Dakotacheapest12.3¢$57
Ohio19.5¢$90
Oklahoma13.3¢$62
Oregon15.8¢$73
Pennsylvania21.5¢$100
Rhode Island28.3¢$131
South Carolina17.1¢$79
South Dakota14.5¢$67
Tennessee14.9¢$69
Texas17.0¢$79
Utah13.3¢$62
Vermont24.6¢$114
Virginia17.4¢$81
Washington14.4¢$67
West Virginia16.1¢$75
Wisconsin19.2¢$89
Wyoming14.7¢$68

Certified models closest in efficiency

bottom-freezer refrigerators within reach of 464 kWh/yr
ModelkWh/yr$/yr (US avg)
Bertazzoni REF24BMBIPNV464$87
Forno FFRBI1704-21464$87
FORTE F9BFRESIC450PR464$87
FULGOR MILANO FM4BM22IFBI464$87
ILVE URBM22SIWPRY464$87
VITARA VBBM0840EWEI464$87

Run your own numbers

Your rate, your numbers

Per day
24¢
Per month
$7.28
Per year
$87

464 kWh/yr × 18.8¢/kWh = $87/yr

Prefilled with this model's certified 464 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 KOOLMORE KM-PRTM-22 use?
ENERGY STAR certifies the KOOLMORE KM-PRTM-22 at 464 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 KOOLMORE KM-PRTM-22 cost to run per month?
About $7.28 a month at the U.S. average residential rate (18.8¢/kWh) — 24¢ a day, or $87 a year. Your state's rate moves this up or down; see the table above.
Is the KOOLMORE KM-PRTM-22 energy efficient?
It uses 17% less electricity than the median certified bottom-freezer refrigerator, placing it in the efficient third of certified models.
What does the KOOLMORE KM-PRTM-22 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $57 a year in North Dakota (12.3¢/kWh) and $216 in Hawaii (46.6¢/kWh).
How many watts does the KOOLMORE KM-PRTM-22 draw on average?
Spread over a year of continuous operation, 464 kWh works out to an average draw of about 53 watts — like leaving a 53-watt bulb on 24/7.

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