WattCost

Data through April 2026

Running cost · Refrigerators · ENERGY STAR certified

KOOLMORE KM-TMR-18-SS

Running around the clock, the KOOLMORE KM-TMR-18-SS uses a certified 369 kWh per year — about $69 at the U.S. average rate, or $5.79 a month, the equivalent of a steady 42-watt draw. Efficiency-wise it's unremarkable in a good way: within 2% of the median certified top-freezer refrigerator (rank 418 of 674). Where you live moves the bill from $46 a year in North Dakota to $172 in Hawaii. It also meets ENERGY STAR's stricter “Most Efficient” criteria.

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

Dimensions 67" H × 30" W

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

$69/yr

$7.91 · cheapest certified refrigerators$152 · priciest
Per month
$5.79
Per day
19¢
Certified use
369 kWh/yr
Configuration
Top Freezer
Total capacity
18.1 cu ft
Defrost
Automatic
Ice maker
No
Through-door dispenser
No
42 kWh805 kWh
Where the KOOLMORE KM-TMR-18-SS (▮) sits among all 4,229 certified refrigerators, by annual kWh

What it costs in every state

KOOLMORE KM-TMR-18-SS: 369 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$64
Alaska27.4¢$101
Arizona15.5¢$57
Arkansas14.2¢$52
California35.3¢$130
Colorado16.5¢$61
Connecticut32.2¢$119
Delaware18.8¢$69
District of Columbia25.4¢$94
Florida15.4¢$57
Georgia15.4¢$57
Hawaiipriciest46.6¢$172
Idaho12.7¢$47
Illinois20.5¢$76
Indiana17.9¢$66
Iowa13.9¢$51
Kansas15.8¢$58
Kentucky15.0¢$55
Louisiana14.4¢$53
Maine28.4¢$105
Maryland22.1¢$81
Massachusetts29.4¢$109
Michigan21.4¢$79
Minnesota16.4¢$60
Mississippi16.8¢$62
Missouri14.0¢$52
Montana13.9¢$51
Nebraska13.3¢$49
Nevada14.3¢$53
New Hampshire27.2¢$101
New Jersey23.5¢$87
New Mexico15.2¢$56
New York29.4¢$109
North Carolina16.3¢$60
North Dakotacheapest12.3¢$46
Ohio19.5¢$72
Oklahoma13.3¢$49
Oregon15.8¢$58
Pennsylvania21.5¢$79
Rhode Island28.3¢$104
South Carolina17.1¢$63
South Dakota14.5¢$54
Tennessee14.9¢$55
Texas17.0¢$63
Utah13.3¢$49
Vermont24.6¢$91
Virginia17.4¢$64
Washington14.4¢$53
West Virginia16.1¢$59
Wisconsin19.2¢$71
Wyoming14.7¢$54

Certified models closest in efficiency

top-freezer refrigerators within reach of 369 kWh/yr
ModelkWh/yr$/yr (US avg)
Conservator GRMH185Amost efficient369$69
ELEMENT ERT18CSEmost efficient369$69
ELEMENT ERT18CSEBmost efficient369$69
ELEMENT ERT18CSESmost efficient369$69
ELEMENT ERT18CSEWmost efficient369$69
Elisii DERTM181*W3most efficient369$69

Run your own numbers

Your rate, your numbers

Per day
19¢
Per month
$5.79
Per year
$69

369 kWh/yr × 18.8¢/kWh = $69/yr

Prefilled with this model's certified 369 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-TMR-18-SS use?
ENERGY STAR certifies the KOOLMORE KM-TMR-18-SS at 369 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-TMR-18-SS cost to run per month?
About $5.79 a month at the U.S. average residential rate (18.8¢/kWh) — 19¢ a day, or $69 a year. Your state's rate moves this up or down; see the table above.
Is the KOOLMORE KM-TMR-18-SS energy efficient?
It uses 2% more electricity than the median certified top-freezer refrigerator. It also meets ENERGY STAR's Most Efficient criteria.
What does the KOOLMORE KM-TMR-18-SS cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $46 a year in North Dakota (12.3¢/kWh) and $172 in Hawaii (46.6¢/kWh).
How many watts does the KOOLMORE KM-TMR-18-SS draw on average?
Spread over a year of continuous operation, 369 kWh works out to an average draw of about 42 watts — like leaving a 42-watt bulb on 24/7.

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